最新代码

public/sdk/three/jsm/renderers/CSS2DRenderer.js

@@ -0,0 +1,215 @@
+import {
+	Matrix4,
+	Object3D,
+	Vector2,
+	Vector3
+} from 'three';
+
+class CSS2DObject extends Object3D {
+
+	constructor( element = document.createElement( 'div' ) ) {
+
+		super();
+
+		this.isCSS2DObject = true;
+
+		this.element = element;
+
+		this.element.style.position = 'absolute';
+		this.element.style.userSelect = 'none';
+
+		this.element.setAttribute( 'draggable', false );
+
+		this.center = new Vector2( 0.5, 0.5 ); // ( 0, 0 ) is the lower left; ( 1, 1 ) is the top right
+
+		this.addEventListener( 'removed', function () {
+
+			this.traverse( function ( object ) {
+
+				if ( object.element instanceof Element && object.element.parentNode !== null ) {
+
+					object.element.parentNode.removeChild( object.element );
+
+				}
+
+			} );
+
+		} );
+
+	}
+
+	copy( source, recursive ) {
+
+		super.copy( source, recursive );
+
+		this.element = source.element.cloneNode( true );
+
+		this.center = source.center;
+
+		return this;
+
+	}
+
+}
+
+//
+
+const _vector = new Vector3();
+const _viewMatrix = new Matrix4();
+const _viewProjectionMatrix = new Matrix4();
+const _a = new Vector3();
+const _b = new Vector3();
+
+class CSS2DRenderer {
+
+	constructor( parameters = {} ) {
+
+		const _this = this;
+
+		let _width, _height;
+		let _widthHalf, _heightHalf;
+
+		const cache = {
+			objects: new WeakMap()
+		};
+
+		const domElement = parameters.element !== undefined ? parameters.element : document.createElement( 'div' );
+
+		domElement.style.overflow = 'hidden';
+
+		this.domElement = domElement;
+
+		this.getSize = function () {
+
+			return {
+				width: _width,
+				height: _height
+			};
+
+		};
+
+		this.render = function ( scene, camera ) {
+
+			if ( scene.matrixWorldAutoUpdate === true ) scene.updateMatrixWorld();
+			if ( camera.parent === null && camera.matrixWorldAutoUpdate === true ) camera.updateMatrixWorld();
+
+			_viewMatrix.copy( camera.matrixWorldInverse );
+			_viewProjectionMatrix.multiplyMatrices( camera.projectionMatrix, _viewMatrix );
+
+			renderObject( scene, scene, camera );
+			zOrder( scene );
+
+		};
+
+		this.setSize = function ( width, height ) {
+
+			_width = width;
+			_height = height;
+
+			_widthHalf = _width / 2;
+			_heightHalf = _height / 2;
+
+			domElement.style.width = width + 'px';
+			domElement.style.height = height + 'px';
+
+		};
+
+		function renderObject( object, scene, camera ) {
+
+			if ( object.isCSS2DObject ) {
+
+				_vector.setFromMatrixPosition( object.matrixWorld );
+				_vector.applyMatrix4( _viewProjectionMatrix );
+
+				const visible = ( object.visible === true ) && ( _vector.z >= - 1 && _vector.z <= 1 ) && ( object.layers.test( camera.layers ) === true );
+				object.element.style.display = ( visible === true ) ? '' : 'none';
+
+				if ( visible === true ) {
+
+					object.onBeforeRender( _this, scene, camera );
+
+					const element = object.element;
+
+					element.style.transform = 'translate(' + ( - 100 * object.center.x ) + '%,' + ( - 100 * object.center.y ) + '%)' + 'translate(' + ( _vector.x * _widthHalf + _widthHalf ) + 'px,' + ( - _vector.y * _heightHalf + _heightHalf ) + 'px)';
+
+					if ( element.parentNode !== domElement ) {
+
+						domElement.appendChild( element );
+
+					}
+
+					object.onAfterRender( _this, scene, camera );
+
+				}
+
+				const objectData = {
+					distanceToCameraSquared: getDistanceToSquared( camera, object )
+				};
+
+				cache.objects.set( object, objectData );
+
+			}
+
+			for ( let i = 0, l = object.children.length; i < l; i ++ ) {
+
+				renderObject( object.children[ i ], scene, camera );
+
+			}
+
+		}
+
+		function getDistanceToSquared( object1, object2 ) {
+
+			_a.setFromMatrixPosition( object1.matrixWorld );
+			_b.setFromMatrixPosition( object2.matrixWorld );
+
+			return _a.distanceToSquared( _b );
+
+		}
+
+		function filterAndFlatten( scene ) {
+
+			const result = [];
+
+			scene.traverse( function ( object ) {
+
+				if ( object.isCSS2DObject ) result.push( object );
+
+			} );
+
+			return result;
+
+		}
+
+		function zOrder( scene ) {
+
+			const sorted = filterAndFlatten( scene ).sort( function ( a, b ) {
+
+				if ( a.renderOrder !== b.renderOrder ) {
+
+					return b.renderOrder - a.renderOrder;
+
+				}
+
+				const distanceA = cache.objects.get( a ).distanceToCameraSquared;
+				const distanceB = cache.objects.get( b ).distanceToCameraSquared;
+
+				return distanceA - distanceB;
+
+			} );
+
+			const zMax = sorted.length;
+
+			for ( let i = 0, l = sorted.length; i < l; i ++ ) {
+
+				sorted[ i ].element.style.zIndex = zMax - i;
+
+			}
+
+		}
+
+	}
+
+}
+
+export { CSS2DObject, CSS2DRenderer };

public/sdk/three/jsm/renderers/CSS3DRenderer.js

@@ -0,0 +1,329 @@
+import {
+	Matrix4,
+	Object3D,
+	Quaternion,
+	Vector3
+} from 'three';
+
+/**
+ * Based on http://www.emagix.net/academic/mscs-project/item/camera-sync-with-css3-and-webgl-threejs
+ */
+
+const _position = new Vector3();
+const _quaternion = new Quaternion();
+const _scale = new Vector3();
+
+class CSS3DObject extends Object3D {
+
+	constructor( element = document.createElement( 'div' ) ) {
+
+		super();
+
+		this.isCSS3DObject = true;
+
+		this.element = element;
+		this.element.style.position = 'absolute';
+		this.element.style.pointerEvents = 'auto';
+		this.element.style.userSelect = 'none';
+
+		this.element.setAttribute( 'draggable', false );
+
+		this.addEventListener( 'removed', function () {
+
+			this.traverse( function ( object ) {
+
+				if ( object.element instanceof Element && object.element.parentNode !== null ) {
+
+					object.element.parentNode.removeChild( object.element );
+
+				}
+
+			} );
+
+		} );
+
+	}
+
+	copy( source, recursive ) {
+
+		super.copy( source, recursive );
+
+		this.element = source.element.cloneNode( true );
+
+		return this;
+
+	}
+
+}
+
+class CSS3DSprite extends CSS3DObject {
+
+	constructor( element ) {
+
+		super( element );
+
+		this.isCSS3DSprite = true;
+
+		this.rotation2D = 0;
+
+	}
+
+	copy( source, recursive ) {
+
+		super.copy( source, recursive );
+
+		this.rotation2D = source.rotation2D;
+
+		return this;
+
+	}
+
+}
+
+//
+
+const _matrix = new Matrix4();
+const _matrix2 = new Matrix4();
+
+class CSS3DRenderer {
+
+	constructor( parameters = {} ) {
+
+		const _this = this;
+
+		let _width, _height;
+		let _widthHalf, _heightHalf;
+
+		const cache = {
+			camera: { style: '' },
+			objects: new WeakMap()
+		};
+
+		const domElement = parameters.element !== undefined ? parameters.element : document.createElement( 'div' );
+
+		domElement.style.overflow = 'hidden';
+
+		this.domElement = domElement;
+
+		const viewElement = document.createElement( 'div' );
+		viewElement.style.transformOrigin = '0 0';
+		viewElement.style.pointerEvents = 'none';
+		domElement.appendChild( viewElement );
+
+		const cameraElement = document.createElement( 'div' );
+
+		cameraElement.style.transformStyle = 'preserve-3d';
+
+		viewElement.appendChild( cameraElement );
+
+		this.getSize = function () {
+
+			return {
+				width: _width,
+				height: _height
+			};
+
+		};
+
+		this.render = function ( scene, camera ) {
+
+			const fov = camera.projectionMatrix.elements[ 5 ] * _heightHalf;
+
+			if ( camera.view && camera.view.enabled ) {
+
+				// view offset
+				viewElement.style.transform = `translate( ${ - camera.view.offsetX * ( _width / camera.view.width ) }px, ${ - camera.view.offsetY * ( _height / camera.view.height ) }px )`;
+
+				// view fullWidth and fullHeight, view width and height
+				viewElement.style.transform += `scale( ${ camera.view.fullWidth / camera.view.width }, ${ camera.view.fullHeight / camera.view.height } )`;
+
+			} else {
+
+				viewElement.style.transform = '';
+
+			}
+
+			if ( scene.matrixWorldAutoUpdate === true ) scene.updateMatrixWorld();
+			if ( camera.parent === null && camera.matrixWorldAutoUpdate === true ) camera.updateMatrixWorld();
+
+			let tx, ty;
+
+			if ( camera.isOrthographicCamera ) {
+
+				tx = - ( camera.right + camera.left ) / 2;
+				ty = ( camera.top + camera.bottom ) / 2;
+
+			}
+
+			const scaleByViewOffset = camera.view && camera.view.enabled ? camera.view.height / camera.view.fullHeight : 1;
+			const cameraCSSMatrix = camera.isOrthographicCamera ?
+				`scale( ${ scaleByViewOffset } )` + 'scale(' + fov + ')' + 'translate(' + epsilon( tx ) + 'px,' + epsilon( ty ) + 'px)' + getCameraCSSMatrix( camera.matrixWorldInverse ) :
+				`scale( ${ scaleByViewOffset } )` + 'translateZ(' + fov + 'px)' + getCameraCSSMatrix( camera.matrixWorldInverse );
+			const perspective = camera.isPerspectiveCamera ? 'perspective(' + fov + 'px) ' : '';
+
+			const style = perspective + cameraCSSMatrix +
+				'translate(' + _widthHalf + 'px,' + _heightHalf + 'px)';
+
+			if ( cache.camera.style !== style ) {
+
+				cameraElement.style.transform = style;
+
+				cache.camera.style = style;
+
+			}
+
+			renderObject( scene, scene, camera, cameraCSSMatrix );
+
+		};
+
+		this.setSize = function ( width, height ) {
+
+			_width = width;
+			_height = height;
+			_widthHalf = _width / 2;
+			_heightHalf = _height / 2;
+
+			domElement.style.width = width + 'px';
+			domElement.style.height = height + 'px';
+
+			viewElement.style.width = width + 'px';
+			viewElement.style.height = height + 'px';
+
+			cameraElement.style.width = width + 'px';
+			cameraElement.style.height = height + 'px';
+
+		};
+
+		function epsilon( value ) {
+
+			return Math.abs( value ) < 1e-10 ? 0 : value;
+
+		}
+
+		function getCameraCSSMatrix( matrix ) {
+
+			const elements = matrix.elements;
+
+			return 'matrix3d(' +
+				epsilon( elements[ 0 ] ) + ',' +
+				epsilon( - elements[ 1 ] ) + ',' +
+				epsilon( elements[ 2 ] ) + ',' +
+				epsilon( elements[ 3 ] ) + ',' +
+				epsilon( elements[ 4 ] ) + ',' +
+				epsilon( - elements[ 5 ] ) + ',' +
+				epsilon( elements[ 6 ] ) + ',' +
+				epsilon( elements[ 7 ] ) + ',' +
+				epsilon( elements[ 8 ] ) + ',' +
+				epsilon( - elements[ 9 ] ) + ',' +
+				epsilon( elements[ 10 ] ) + ',' +
+				epsilon( elements[ 11 ] ) + ',' +
+				epsilon( elements[ 12 ] ) + ',' +
+				epsilon( - elements[ 13 ] ) + ',' +
+				epsilon( elements[ 14 ] ) + ',' +
+				epsilon( elements[ 15 ] ) +
+			')';
+
+		}
+
+		function getObjectCSSMatrix( matrix ) {
+
+			const elements = matrix.elements;
+			const matrix3d = 'matrix3d(' +
+				epsilon( elements[ 0 ] ) + ',' +
+				epsilon( elements[ 1 ] ) + ',' +
+				epsilon( elements[ 2 ] ) + ',' +
+				epsilon( elements[ 3 ] ) + ',' +
+				epsilon( - elements[ 4 ] ) + ',' +
+				epsilon( - elements[ 5 ] ) + ',' +
+				epsilon( - elements[ 6 ] ) + ',' +
+				epsilon( - elements[ 7 ] ) + ',' +
+				epsilon( elements[ 8 ] ) + ',' +
+				epsilon( elements[ 9 ] ) + ',' +
+				epsilon( elements[ 10 ] ) + ',' +
+				epsilon( elements[ 11 ] ) + ',' +
+				epsilon( elements[ 12 ] ) + ',' +
+				epsilon( elements[ 13 ] ) + ',' +
+				epsilon( elements[ 14 ] ) + ',' +
+				epsilon( elements[ 15 ] ) +
+			')';
+
+			return 'translate(-50%,-50%)' + matrix3d;
+
+		}
+
+		function renderObject( object, scene, camera, cameraCSSMatrix ) {
+
+			if ( object.isCSS3DObject ) {
+
+				const visible = ( object.visible === true ) && ( object.layers.test( camera.layers ) === true );
+				object.element.style.display = ( visible === true ) ? '' : 'none';
+
+				if ( visible === true ) {
+
+					object.onBeforeRender( _this, scene, camera );
+
+					let style;
+
+					if ( object.isCSS3DSprite ) {
+
+						// http://swiftcoder.wordpress.com/2008/11/25/constructing-a-billboard-matrix/
+
+						_matrix.copy( camera.matrixWorldInverse );
+						_matrix.transpose();
+
+						if ( object.rotation2D !== 0 ) _matrix.multiply( _matrix2.makeRotationZ( object.rotation2D ) );
+
+						object.matrixWorld.decompose( _position, _quaternion, _scale );
+						_matrix.setPosition( _position );
+						_matrix.scale( _scale );
+
+						_matrix.elements[ 3 ] = 0;
+						_matrix.elements[ 7 ] = 0;
+						_matrix.elements[ 11 ] = 0;
+						_matrix.elements[ 15 ] = 1;
+
+						style = getObjectCSSMatrix( _matrix );
+
+					} else {
+
+						style = getObjectCSSMatrix( object.matrixWorld );
+
+					}
+
+					const element = object.element;
+					const cachedObject = cache.objects.get( object );
+
+					if ( cachedObject === undefined || cachedObject.style !== style ) {
+
+						element.style.transform = style;
+
+						const objectData = { style: style };
+						cache.objects.set( object, objectData );
+
+					}
+
+					if ( element.parentNode !== cameraElement ) {
+
+						cameraElement.appendChild( element );
+
+					}
+
+					object.onAfterRender( _this, scene, camera );
+
+				}
+
+			}
+
+			for ( let i = 0, l = object.children.length; i < l; i ++ ) {
+
+				renderObject( object.children[ i ], scene, camera, cameraCSSMatrix );
+
+			}
+
+		}
+
+	}
+
+}
+
+export { CSS3DObject, CSS3DSprite, CSS3DRenderer };

public/sdk/three/jsm/renderers/Projector.js

@@ -0,0 +1,918 @@
+import {
+	Box3,
+	Color,
+	DoubleSide,
+	Frustum,
+	Matrix3,
+	Matrix4,
+	Vector2,
+	Vector3,
+	Vector4
+} from 'three';
+
+class RenderableObject {
+
+	constructor() {
+
+		this.id = 0;
+
+		this.object = null;
+		this.z = 0;
+		this.renderOrder = 0;
+
+	}
+
+}
+
+//
+
+class RenderableFace {
+
+	constructor() {
+
+		this.id = 0;
+
+		this.v1 = new RenderableVertex();
+		this.v2 = new RenderableVertex();
+		this.v3 = new RenderableVertex();
+
+		this.normalModel = new Vector3();
+
+		this.vertexNormalsModel = [ new Vector3(), new Vector3(), new Vector3() ];
+		this.vertexNormalsLength = 0;
+
+		this.color = new Color();
+		this.material = null;
+		this.uvs = [ new Vector2(), new Vector2(), new Vector2() ];
+
+		this.z = 0;
+		this.renderOrder = 0;
+
+	}
+
+}
+
+//
+
+class RenderableVertex {
+
+	constructor() {
+
+		this.position = new Vector3();
+		this.positionWorld = new Vector3();
+		this.positionScreen = new Vector4();
+
+		this.visible = true;
+
+	}
+
+	copy( vertex ) {
+
+		this.positionWorld.copy( vertex.positionWorld );
+		this.positionScreen.copy( vertex.positionScreen );
+
+	}
+
+}
+
+//
+
+class RenderableLine {
+
+	constructor() {
+
+		this.id = 0;
+
+		this.v1 = new RenderableVertex();
+		this.v2 = new RenderableVertex();
+
+		this.vertexColors = [ new Color(), new Color() ];
+		this.material = null;
+
+		this.z = 0;
+		this.renderOrder = 0;
+
+	}
+
+}
+
+//
+
+class RenderableSprite {
+
+	constructor() {
+
+		this.id = 0;
+
+		this.object = null;
+
+		this.x = 0;
+		this.y = 0;
+		this.z = 0;
+
+		this.rotation = 0;
+		this.scale = new Vector2();
+
+		this.material = null;
+		this.renderOrder = 0;
+
+	}
+
+}
+
+//
+
+class Projector {
+
+	constructor() {
+
+		let _object, _objectCount, _objectPoolLength = 0,
+			_vertex, _vertexCount, _vertexPoolLength = 0,
+			_face, _faceCount, _facePoolLength = 0,
+			_line, _lineCount, _linePoolLength = 0,
+			_sprite, _spriteCount, _spritePoolLength = 0,
+			_modelMatrix;
+
+		const
+
+			_renderData = { objects: [], lights: [], elements: [] },
+
+			_vector3 = new Vector3(),
+			_vector4 = new Vector4(),
+
+			_clipBox = new Box3( new Vector3( - 1, - 1, - 1 ), new Vector3( 1, 1, 1 ) ),
+			_boundingBox = new Box3(),
+			_points3 = new Array( 3 ),
+
+			_viewMatrix = new Matrix4(),
+			_viewProjectionMatrix = new Matrix4(),
+
+			_modelViewProjectionMatrix = new Matrix4(),
+
+			_frustum = new Frustum(),
+
+			_objectPool = [], _vertexPool = [], _facePool = [], _linePool = [], _spritePool = [];
+
+		//
+
+		function RenderList() {
+
+			const normals = [];
+			const colors = [];
+			const uvs = [];
+
+			let object = null;
+
+			const normalMatrix = new Matrix3();
+
+			function setObject( value ) {
+
+				object = value;
+
+				normalMatrix.getNormalMatrix( object.matrixWorld );
+
+				normals.length = 0;
+				colors.length = 0;
+				uvs.length = 0;
+
+			}
+
+			function projectVertex( vertex ) {
+
+				const position = vertex.position;
+				const positionWorld = vertex.positionWorld;
+				const positionScreen = vertex.positionScreen;
+
+				positionWorld.copy( position ).applyMatrix4( _modelMatrix );
+				positionScreen.copy( positionWorld ).applyMatrix4( _viewProjectionMatrix );
+
+				const invW = 1 / positionScreen.w;
+
+				positionScreen.x *= invW;
+				positionScreen.y *= invW;
+				positionScreen.z *= invW;
+
+				vertex.visible = positionScreen.x >= - 1 && positionScreen.x <= 1 &&
+						 positionScreen.y >= - 1 && positionScreen.y <= 1 &&
+						 positionScreen.z >= - 1 && positionScreen.z <= 1;
+
+			}
+
+			function pushVertex( x, y, z ) {
+
+				_vertex = getNextVertexInPool();
+				_vertex.position.set( x, y, z );
+
+				projectVertex( _vertex );
+
+			}
+
+			function pushNormal( x, y, z ) {
+
+				normals.push( x, y, z );
+
+			}
+
+			function pushColor( r, g, b ) {
+
+				colors.push( r, g, b );
+
+			}
+
+			function pushUv( x, y ) {
+
+				uvs.push( x, y );
+
+			}
+
+			function checkTriangleVisibility( v1, v2, v3 ) {
+
+				if ( v1.visible === true || v2.visible === true || v3.visible === true ) return true;
+
+				_points3[ 0 ] = v1.positionScreen;
+				_points3[ 1 ] = v2.positionScreen;
+				_points3[ 2 ] = v3.positionScreen;
+
+				return _clipBox.intersectsBox( _boundingBox.setFromPoints( _points3 ) );
+
+			}
+
+			function checkBackfaceCulling( v1, v2, v3 ) {
+
+				return ( ( v3.positionScreen.x - v1.positionScreen.x ) *
+					    ( v2.positionScreen.y - v1.positionScreen.y ) -
+					    ( v3.positionScreen.y - v1.positionScreen.y ) *
+					    ( v2.positionScreen.x - v1.positionScreen.x ) ) < 0;
+
+			}
+
+			function pushLine( a, b ) {
+
+				const v1 = _vertexPool[ a ];
+				const v2 = _vertexPool[ b ];
+
+				// Clip
+
+				v1.positionScreen.copy( v1.position ).applyMatrix4( _modelViewProjectionMatrix );
+				v2.positionScreen.copy( v2.position ).applyMatrix4( _modelViewProjectionMatrix );
+
+				if ( clipLine( v1.positionScreen, v2.positionScreen ) === true ) {
+
+					// Perform the perspective divide
+					v1.positionScreen.multiplyScalar( 1 / v1.positionScreen.w );
+					v2.positionScreen.multiplyScalar( 1 / v2.positionScreen.w );
+
+					_line = getNextLineInPool();
+					_line.id = object.id;
+					_line.v1.copy( v1 );
+					_line.v2.copy( v2 );
+					_line.z = Math.max( v1.positionScreen.z, v2.positionScreen.z );
+					_line.renderOrder = object.renderOrder;
+
+					_line.material = object.material;
+
+					if ( object.material.vertexColors ) {
+
+						_line.vertexColors[ 0 ].fromArray( colors, a * 3 );
+						_line.vertexColors[ 1 ].fromArray( colors, b * 3 );
+
+					}
+
+					_renderData.elements.push( _line );
+
+				}
+
+			}
+
+			function pushTriangle( a, b, c, material ) {
+
+				const v1 = _vertexPool[ a ];
+				const v2 = _vertexPool[ b ];
+				const v3 = _vertexPool[ c ];
+
+				if ( checkTriangleVisibility( v1, v2, v3 ) === false ) return;
+
+				if ( material.side === DoubleSide || checkBackfaceCulling( v1, v2, v3 ) === true ) {
+
+					_face = getNextFaceInPool();
+
+					_face.id = object.id;
+					_face.v1.copy( v1 );
+					_face.v2.copy( v2 );
+					_face.v3.copy( v3 );
+					_face.z = ( v1.positionScreen.z + v2.positionScreen.z + v3.positionScreen.z ) / 3;
+					_face.renderOrder = object.renderOrder;
+
+					// face normal
+					_vector3.subVectors( v3.position, v2.position );
+					_vector4.subVectors( v1.position, v2.position );
+					_vector3.cross( _vector4 );
+					_face.normalModel.copy( _vector3 );
+					_face.normalModel.applyMatrix3( normalMatrix ).normalize();
+
+					for ( let i = 0; i < 3; i ++ ) {
+
+						const normal = _face.vertexNormalsModel[ i ];
+						normal.fromArray( normals, arguments[ i ] * 3 );
+						normal.applyMatrix3( normalMatrix ).normalize();
+
+						const uv = _face.uvs[ i ];
+						uv.fromArray( uvs, arguments[ i ] * 2 );
+
+					}
+
+					_face.vertexNormalsLength = 3;
+
+					_face.material = material;
+
+					if ( material.vertexColors ) {
+
+						_face.color.fromArray( colors, a * 3 );
+
+					}
+
+					_renderData.elements.push( _face );
+
+				}
+
+			}
+
+			return {
+				setObject: setObject,
+				projectVertex: projectVertex,
+				checkTriangleVisibility: checkTriangleVisibility,
+				checkBackfaceCulling: checkBackfaceCulling,
+				pushVertex: pushVertex,
+				pushNormal: pushNormal,
+				pushColor: pushColor,
+				pushUv: pushUv,
+				pushLine: pushLine,
+				pushTriangle: pushTriangle
+			};
+
+		}
+
+		const renderList = new RenderList();
+
+		function projectObject( object ) {
+
+			if ( object.visible === false ) return;
+
+			if ( object.isLight ) {
+
+				_renderData.lights.push( object );
+
+			} else if ( object.isMesh || object.isLine || object.isPoints ) {
+
+				if ( object.material.visible === false ) return;
+				if ( object.frustumCulled === true && _frustum.intersectsObject( object ) === false ) return;
+
+				addObject( object );
+
+			} else if ( object.isSprite ) {
+
+				if ( object.material.visible === false ) return;
+				if ( object.frustumCulled === true && _frustum.intersectsSprite( object ) === false ) return;
+
+				addObject( object );
+
+			}
+
+			const children = object.children;
+
+			for ( let i = 0, l = children.length; i < l; i ++ ) {
+
+				projectObject( children[ i ] );
+
+			}
+
+		}
+
+		function addObject( object ) {
+
+			_object = getNextObjectInPool();
+			_object.id = object.id;
+			_object.object = object;
+
+			_vector3.setFromMatrixPosition( object.matrixWorld );
+			_vector3.applyMatrix4( _viewProjectionMatrix );
+			_object.z = _vector3.z;
+			_object.renderOrder = object.renderOrder;
+
+			_renderData.objects.push( _object );
+
+		}
+
+		this.projectScene = function ( scene, camera, sortObjects, sortElements ) {
+
+			_faceCount = 0;
+			_lineCount = 0;
+			_spriteCount = 0;
+
+			_renderData.elements.length = 0;
+
+			if ( scene.matrixWorldAutoUpdate === true ) scene.updateMatrixWorld();
+			if ( camera.parent === null && camera.matrixWorldAutoUpdate === true ) camera.updateMatrixWorld();
+
+			_viewMatrix.copy( camera.matrixWorldInverse );
+			_viewProjectionMatrix.multiplyMatrices( camera.projectionMatrix, _viewMatrix );
+
+			_frustum.setFromProjectionMatrix( _viewProjectionMatrix );
+
+			//
+
+			_objectCount = 0;
+
+			_renderData.objects.length = 0;
+			_renderData.lights.length = 0;
+
+			projectObject( scene );
+
+			if ( sortObjects === true ) {
+
+				_renderData.objects.sort( painterSort );
+
+			}
+
+			//
+
+			const objects = _renderData.objects;
+
+			for ( let o = 0, ol = objects.length; o < ol; o ++ ) {
+
+				const object = objects[ o ].object;
+				const geometry = object.geometry;
+
+				renderList.setObject( object );
+
+				_modelMatrix = object.matrixWorld;
+
+				_vertexCount = 0;
+
+				if ( object.isMesh ) {
+
+					let material = object.material;
+
+					const isMultiMaterial = Array.isArray( material );
+
+					const attributes = geometry.attributes;
+					const groups = geometry.groups;
+
+					if ( attributes.position === undefined ) continue;
+
+					const positions = attributes.position.array;
+
+					for ( let i = 0, l = positions.length; i < l; i += 3 ) {
+
+						let x = positions[ i ];
+						let y = positions[ i + 1 ];
+						let z = positions[ i + 2 ];
+
+						const morphTargets = geometry.morphAttributes.position;
+
+						if ( morphTargets !== undefined ) {
+
+							const morphTargetsRelative = geometry.morphTargetsRelative;
+							const morphInfluences = object.morphTargetInfluences;
+
+							for ( let t = 0, tl = morphTargets.length; t < tl; t ++ ) {
+
+								const influence = morphInfluences[ t ];
+
+								if ( influence === 0 ) continue;
+
+								const target = morphTargets[ t ];
+
+								if ( morphTargetsRelative ) {
+
+									x += target.getX( i / 3 ) * influence;
+									y += target.getY( i / 3 ) * influence;
+									z += target.getZ( i / 3 ) * influence;
+
+								} else {
+
+									x += ( target.getX( i / 3 ) - positions[ i ] ) * influence;
+									y += ( target.getY( i / 3 ) - positions[ i + 1 ] ) * influence;
+									z += ( target.getZ( i / 3 ) - positions[ i + 2 ] ) * influence;
+
+								}
+
+							}
+
+						}
+
+						renderList.pushVertex( x, y, z );
+
+					}
+
+					if ( attributes.normal !== undefined ) {
+
+						const normals = attributes.normal.array;
+
+						for ( let i = 0, l = normals.length; i < l; i += 3 ) {
+
+							renderList.pushNormal( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] );
+
+						}
+
+					}
+
+					if ( attributes.color !== undefined ) {
+
+						const colors = attributes.color.array;
+
+						for ( let i = 0, l = colors.length; i < l; i += 3 ) {
+
+							renderList.pushColor( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] );
+
+						}
+
+					}
+
+					if ( attributes.uv !== undefined ) {
+
+						const uvs = attributes.uv.array;
+
+						for ( let i = 0, l = uvs.length; i < l; i += 2 ) {
+
+							renderList.pushUv( uvs[ i ], uvs[ i + 1 ] );
+
+						}
+
+					}
+
+					if ( geometry.index !== null ) {
+
+						const indices = geometry.index.array;
+
+						if ( groups.length > 0 ) {
+
+							for ( let g = 0; g < groups.length; g ++ ) {
+
+								const group = groups[ g ];
+
+								material = isMultiMaterial === true
+									 ? object.material[ group.materialIndex ]
+									 : object.material;
+
+								if ( material === undefined ) continue;
+
+								for ( let i = group.start, l = group.start + group.count; i < l; i += 3 ) {
+
+									renderList.pushTriangle( indices[ i ], indices[ i + 1 ], indices[ i + 2 ], material );
+
+								}
+
+							}
+
+						} else {
+
+							for ( let i = 0, l = indices.length; i < l; i += 3 ) {
+
+								renderList.pushTriangle( indices[ i ], indices[ i + 1 ], indices[ i + 2 ], material );
+
+							}
+
+						}
+
+					} else {
+
+						if ( groups.length > 0 ) {
+
+							for ( let g = 0; g < groups.length; g ++ ) {
+
+								const group = groups[ g ];
+
+								material = isMultiMaterial === true
+									 ? object.material[ group.materialIndex ]
+									 : object.material;
+
+								if ( material === undefined ) continue;
+
+								for ( let i = group.start, l = group.start + group.count; i < l; i += 3 ) {
+
+									renderList.pushTriangle( i, i + 1, i + 2, material );
+
+								}
+
+							}
+
+						} else {
+
+							for ( let i = 0, l = positions.length / 3; i < l; i += 3 ) {
+
+								renderList.pushTriangle( i, i + 1, i + 2, material );
+
+							}
+
+						}
+
+					}
+
+				} else if ( object.isLine ) {
+
+					_modelViewProjectionMatrix.multiplyMatrices( _viewProjectionMatrix, _modelMatrix );
+
+					const attributes = geometry.attributes;
+
+					if ( attributes.position !== undefined ) {
+
+						const positions = attributes.position.array;
+
+						for ( let i = 0, l = positions.length; i < l; i += 3 ) {
+
+							renderList.pushVertex( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] );
+
+						}
+
+						if ( attributes.color !== undefined ) {
+
+							const colors = attributes.color.array;
+
+							for ( let i = 0, l = colors.length; i < l; i += 3 ) {
+
+								renderList.pushColor( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] );
+
+							}
+
+						}
+
+						if ( geometry.index !== null ) {
+
+							const indices = geometry.index.array;
+
+							for ( let i = 0, l = indices.length; i < l; i += 2 ) {
+
+								renderList.pushLine( indices[ i ], indices[ i + 1 ] );
+
+							}
+
+						} else {
+
+							const step = object.isLineSegments ? 2 : 1;
+
+							for ( let i = 0, l = ( positions.length / 3 ) - 1; i < l; i += step ) {
+
+								renderList.pushLine( i, i + 1 );
+
+							}
+
+						}
+
+					}
+
+				} else if ( object.isPoints ) {
+
+					_modelViewProjectionMatrix.multiplyMatrices( _viewProjectionMatrix, _modelMatrix );
+
+					const attributes = geometry.attributes;
+
+					if ( attributes.position !== undefined ) {
+
+						const positions = attributes.position.array;
+
+						for ( let i = 0, l = positions.length; i < l; i += 3 ) {
+
+							_vector4.set( positions[ i ], positions[ i + 1 ], positions[ i + 2 ], 1 );
+							_vector4.applyMatrix4( _modelViewProjectionMatrix );
+
+							pushPoint( _vector4, object, camera );
+
+						}
+
+					}
+
+				} else if ( object.isSprite ) {
+
+					object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );
+					_vector4.set( _modelMatrix.elements[ 12 ], _modelMatrix.elements[ 13 ], _modelMatrix.elements[ 14 ], 1 );
+					_vector4.applyMatrix4( _viewProjectionMatrix );
+
+					pushPoint( _vector4, object, camera );
+
+				}
+
+			}
+
+			if ( sortElements === true ) {
+
+				_renderData.elements.sort( painterSort );
+
+			}
+
+			return _renderData;
+
+		};
+
+		function pushPoint( _vector4, object, camera ) {
+
+			const invW = 1 / _vector4.w;
+
+			_vector4.z *= invW;
+
+			if ( _vector4.z >= - 1 && _vector4.z <= 1 ) {
+
+				_sprite = getNextSpriteInPool();
+				_sprite.id = object.id;
+				_sprite.x = _vector4.x * invW;
+				_sprite.y = _vector4.y * invW;
+				_sprite.z = _vector4.z;
+				_sprite.renderOrder = object.renderOrder;
+				_sprite.object = object;
+
+				_sprite.rotation = object.rotation;
+
+				_sprite.scale.x = object.scale.x * Math.abs( _sprite.x - ( _vector4.x + camera.projectionMatrix.elements[ 0 ] ) / ( _vector4.w + camera.projectionMatrix.elements[ 12 ] ) );
+				_sprite.scale.y = object.scale.y * Math.abs( _sprite.y - ( _vector4.y + camera.projectionMatrix.elements[ 5 ] ) / ( _vector4.w + camera.projectionMatrix.elements[ 13 ] ) );
+
+				_sprite.material = object.material;
+
+				_renderData.elements.push( _sprite );
+
+			}
+
+		}
+
+		// Pools
+
+		function getNextObjectInPool() {
+
+			if ( _objectCount === _objectPoolLength ) {
+
+				const object = new RenderableObject();
+				_objectPool.push( object );
+				_objectPoolLength ++;
+				_objectCount ++;
+				return object;
+
+			}
+
+			return _objectPool[ _objectCount ++ ];
+
+		}
+
+		function getNextVertexInPool() {
+
+			if ( _vertexCount === _vertexPoolLength ) {
+
+				const vertex = new RenderableVertex();
+				_vertexPool.push( vertex );
+				_vertexPoolLength ++;
+				_vertexCount ++;
+				return vertex;
+
+			}
+
+			return _vertexPool[ _vertexCount ++ ];
+
+		}
+
+		function getNextFaceInPool() {
+
+			if ( _faceCount === _facePoolLength ) {
+
+				const face = new RenderableFace();
+				_facePool.push( face );
+				_facePoolLength ++;
+				_faceCount ++;
+				return face;
+
+			}
+
+			return _facePool[ _faceCount ++ ];
+
+
+		}
+
+		function getNextLineInPool() {
+
+			if ( _lineCount === _linePoolLength ) {
+
+				const line = new RenderableLine();
+				_linePool.push( line );
+				_linePoolLength ++;
+				_lineCount ++;
+				return line;
+
+			}
+
+			return _linePool[ _lineCount ++ ];
+
+		}
+
+		function getNextSpriteInPool() {
+
+			if ( _spriteCount === _spritePoolLength ) {
+
+				const sprite = new RenderableSprite();
+				_spritePool.push( sprite );
+				_spritePoolLength ++;
+				_spriteCount ++;
+				return sprite;
+
+			}
+
+			return _spritePool[ _spriteCount ++ ];
+
+		}
+
+		//
+
+		function painterSort( a, b ) {
+
+			if ( a.renderOrder !== b.renderOrder ) {
+
+				return a.renderOrder - b.renderOrder;
+
+			} else if ( a.z !== b.z ) {
+
+				return b.z - a.z;
+
+			} else if ( a.id !== b.id ) {
+
+				return a.id - b.id;
+
+			} else {
+
+				return 0;
+
+			}
+
+		}
+
+		function clipLine( s1, s2 ) {
+
+			let alpha1 = 0, alpha2 = 1;
+
+			// Calculate the boundary coordinate of each vertex for the near and far clip planes,
+			// Z = -1 and Z = +1, respectively.
+
+			const bc1near = s1.z + s1.w,
+				bc2near = s2.z + s2.w,
+				bc1far = - s1.z + s1.w,
+				bc2far = - s2.z + s2.w;
+
+			if ( bc1near >= 0 && bc2near >= 0 && bc1far >= 0 && bc2far >= 0 ) {
+
+				// Both vertices lie entirely within all clip planes.
+				return true;
+
+			} else if ( ( bc1near < 0 && bc2near < 0 ) || ( bc1far < 0 && bc2far < 0 ) ) {
+
+				// Both vertices lie entirely outside one of the clip planes.
+				return false;
+
+			} else {
+
+				// The line segment spans at least one clip plane.
+
+				if ( bc1near < 0 ) {
+
+					// v1 lies outside the near plane, v2 inside
+					alpha1 = Math.max( alpha1, bc1near / ( bc1near - bc2near ) );
+
+				} else if ( bc2near < 0 ) {
+
+					// v2 lies outside the near plane, v1 inside
+					alpha2 = Math.min( alpha2, bc1near / ( bc1near - bc2near ) );
+
+				}
+
+				if ( bc1far < 0 ) {
+
+					// v1 lies outside the far plane, v2 inside
+					alpha1 = Math.max( alpha1, bc1far / ( bc1far - bc2far ) );
+
+				} else if ( bc2far < 0 ) {
+
+					// v2 lies outside the far plane, v2 inside
+					alpha2 = Math.min( alpha2, bc1far / ( bc1far - bc2far ) );
+
+				}
+
+				if ( alpha2 < alpha1 ) {
+
+					// The line segment spans two boundaries, but is outside both of them.
+					// (This can't happen when we're only clipping against just near/far but good
+					//  to leave the check here for future usage if other clip planes are added.)
+					return false;
+
+				} else {
+
+					// Update the s1 and s2 vertices to match the clipped line segment.
+					s1.lerp( s2, alpha1 );
+					s2.lerp( s1, 1 - alpha2 );
+
+					return true;
+
+				}
+
+			}
+
+		}
+
+	}
+
+}
+
+export { RenderableObject, RenderableFace, RenderableVertex, RenderableLine, RenderableSprite, Projector };

public/sdk/three/jsm/renderers/SVGRenderer.js

@@ -0,0 +1,556 @@
+import {
+	Box2,
+	Camera,
+	Color,
+	Matrix3,
+	Matrix4,
+	Object3D,
+	SRGBColorSpace,
+	Vector3
+} from 'three';
+import { Projector } from '../renderers/Projector.js';
+import { RenderableFace } from '../renderers/Projector.js';
+import { RenderableLine } from '../renderers/Projector.js';
+import { RenderableSprite } from '../renderers/Projector.js';
+
+class SVGObject extends Object3D {
+
+	constructor( node ) {
+
+		super();
+
+		this.isSVGObject = true;
+
+		this.node = node;
+
+	}
+
+}
+
+class SVGRenderer {
+
+	constructor() {
+
+		let _renderData, _elements, _lights,
+			_svgWidth, _svgHeight, _svgWidthHalf, _svgHeightHalf,
+
+			_v1, _v2, _v3,
+
+			_svgNode,
+			_pathCount = 0,
+
+			_precision = null,
+			_quality = 1,
+
+			_currentPath, _currentStyle;
+
+		const _this = this,
+			_clipBox = new Box2(),
+			_elemBox = new Box2(),
+
+			_color = new Color(),
+			_diffuseColor = new Color(),
+			_ambientLight = new Color(),
+			_directionalLights = new Color(),
+			_pointLights = new Color(),
+			_clearColor = new Color(),
+
+			_vector3 = new Vector3(), // Needed for PointLight
+			_centroid = new Vector3(),
+			_normal = new Vector3(),
+			_normalViewMatrix = new Matrix3(),
+
+			_viewMatrix = new Matrix4(),
+			_viewProjectionMatrix = new Matrix4(),
+
+			_svgPathPool = [],
+
+			_projector = new Projector(),
+			_svg = document.createElementNS( 'http://www.w3.org/2000/svg', 'svg' );
+
+		this.domElement = _svg;
+
+		this.autoClear = true;
+		this.sortObjects = true;
+		this.sortElements = true;
+
+		this.overdraw = 0.5;
+
+		this.outputColorSpace = SRGBColorSpace;
+
+		this.info = {
+
+			render: {
+
+				vertices: 0,
+				faces: 0
+
+			}
+
+		};
+
+		this.setQuality = function ( quality ) {
+
+			switch ( quality ) {
+
+				case 'high': _quality = 1; break;
+				case 'low': _quality = 0; break;
+
+			}
+
+		};
+
+		this.setClearColor = function ( color ) {
+
+			_clearColor.set( color );
+
+		};
+
+		this.setPixelRatio = function () {};
+
+		this.setSize = function ( width, height ) {
+
+			_svgWidth = width; _svgHeight = height;
+			_svgWidthHalf = _svgWidth / 2; _svgHeightHalf = _svgHeight / 2;
+
+			_svg.setAttribute( 'viewBox', ( - _svgWidthHalf ) + ' ' + ( - _svgHeightHalf ) + ' ' + _svgWidth + ' ' + _svgHeight );
+			_svg.setAttribute( 'width', _svgWidth );
+			_svg.setAttribute( 'height', _svgHeight );
+
+			_clipBox.min.set( - _svgWidthHalf, - _svgHeightHalf );
+			_clipBox.max.set( _svgWidthHalf, _svgHeightHalf );
+
+		};
+
+		this.getSize = function () {
+
+			return {
+				width: _svgWidth,
+				height: _svgHeight
+			};
+
+		};
+
+		this.setPrecision = function ( precision ) {
+
+			_precision = precision;
+
+		};
+
+		function removeChildNodes() {
+
+			_pathCount = 0;
+
+			while ( _svg.childNodes.length > 0 ) {
+
+				_svg.removeChild( _svg.childNodes[ 0 ] );
+
+			}
+
+		}
+
+		function convert( c ) {
+
+			return _precision !== null ? c.toFixed( _precision ) : c;
+
+		}
+
+		this.clear = function () {
+
+			removeChildNodes();
+			_svg.style.backgroundColor = _clearColor.getStyle( _this.outputColorSpace );
+
+		};
+
+		this.render = function ( scene, camera ) {
+
+			if ( camera instanceof Camera === false ) {
+
+				console.error( 'THREE.SVGRenderer.render: camera is not an instance of Camera.' );
+				return;
+
+			}
+
+			const background = scene.background;
+
+			if ( background && background.isColor ) {
+
+				removeChildNodes();
+				_svg.style.backgroundColor = background.getStyle( _this.outputColorSpace );
+
+			} else if ( this.autoClear === true ) {
+
+				this.clear();
+
+			}
+
+			_this.info.render.vertices = 0;
+			_this.info.render.faces = 0;
+
+			_viewMatrix.copy( camera.matrixWorldInverse );
+			_viewProjectionMatrix.multiplyMatrices( camera.projectionMatrix, _viewMatrix );
+
+			_renderData = _projector.projectScene( scene, camera, this.sortObjects, this.sortElements );
+			_elements = _renderData.elements;
+			_lights = _renderData.lights;
+
+			_normalViewMatrix.getNormalMatrix( camera.matrixWorldInverse );
+
+			calculateLights( _lights );
+
+			 // reset accumulated path
+
+			_currentPath = '';
+			_currentStyle = '';
+
+			for ( let e = 0, el = _elements.length; e < el; e ++ ) {
+
+				const element = _elements[ e ];
+				const material = element.material;
+
+				if ( material === undefined || material.opacity === 0 ) continue;
+
+				_elemBox.makeEmpty();
+
+				if ( element instanceof RenderableSprite ) {
+
+					_v1 = element;
+					_v1.x *= _svgWidthHalf; _v1.y *= - _svgHeightHalf;
+
+					renderSprite( _v1, element, material );
+
+				} else if ( element instanceof RenderableLine ) {
+
+					_v1 = element.v1; _v2 = element.v2;
+
+					_v1.positionScreen.x *= _svgWidthHalf; _v1.positionScreen.y *= - _svgHeightHalf;
+					_v2.positionScreen.x *= _svgWidthHalf; _v2.positionScreen.y *= - _svgHeightHalf;
+
+					_elemBox.setFromPoints( [ _v1.positionScreen, _v2.positionScreen ] );
+
+					if ( _clipBox.intersectsBox( _elemBox ) === true ) {
+
+						renderLine( _v1, _v2, material );
+
+					}
+
+				} else if ( element instanceof RenderableFace ) {
+
+					_v1 = element.v1; _v2 = element.v2; _v3 = element.v3;
+
+					if ( _v1.positionScreen.z < - 1 || _v1.positionScreen.z > 1 ) continue;
+					if ( _v2.positionScreen.z < - 1 || _v2.positionScreen.z > 1 ) continue;
+					if ( _v3.positionScreen.z < - 1 || _v3.positionScreen.z > 1 ) continue;
+
+					_v1.positionScreen.x *= _svgWidthHalf; _v1.positionScreen.y *= - _svgHeightHalf;
+					_v2.positionScreen.x *= _svgWidthHalf; _v2.positionScreen.y *= - _svgHeightHalf;
+					_v3.positionScreen.x *= _svgWidthHalf; _v3.positionScreen.y *= - _svgHeightHalf;
+
+					if ( this.overdraw > 0 ) {
+
+						expand( _v1.positionScreen, _v2.positionScreen, this.overdraw );
+						expand( _v2.positionScreen, _v3.positionScreen, this.overdraw );
+						expand( _v3.positionScreen, _v1.positionScreen, this.overdraw );
+
+					}
+
+					_elemBox.setFromPoints( [
+						_v1.positionScreen,
+						_v2.positionScreen,
+						_v3.positionScreen
+					] );
+
+					if ( _clipBox.intersectsBox( _elemBox ) === true ) {
+
+						renderFace3( _v1, _v2, _v3, element, material );
+
+					}
+
+				}
+
+			}
+
+			flushPath(); // just to flush last svg:path
+
+			scene.traverseVisible( function ( object ) {
+
+				 if ( object.isSVGObject ) {
+
+					_vector3.setFromMatrixPosition( object.matrixWorld );
+					_vector3.applyMatrix4( _viewProjectionMatrix );
+
+					if ( _vector3.z < - 1 || _vector3.z > 1 ) return;
+
+					const x = _vector3.x * _svgWidthHalf;
+					const y = - _vector3.y * _svgHeightHalf;
+
+					const node = object.node;
+					node.setAttribute( 'transform', 'translate(' + x + ',' + y + ')' );
+
+					_svg.appendChild( node );
+
+				}
+
+			} );
+
+		};
+
+		function calculateLights( lights ) {
+
+			_ambientLight.setRGB( 0, 0, 0 );
+			_directionalLights.setRGB( 0, 0, 0 );
+			_pointLights.setRGB( 0, 0, 0 );
+
+			for ( let l = 0, ll = lights.length; l < ll; l ++ ) {
+
+				const light = lights[ l ];
+				const lightColor = light.color;
+
+				if ( light.isAmbientLight ) {
+
+					_ambientLight.r += lightColor.r;
+					_ambientLight.g += lightColor.g;
+					_ambientLight.b += lightColor.b;
+
+				} else if ( light.isDirectionalLight ) {
+
+					_directionalLights.r += lightColor.r;
+					_directionalLights.g += lightColor.g;
+					_directionalLights.b += lightColor.b;
+
+				} else if ( light.isPointLight ) {
+
+					_pointLights.r += lightColor.r;
+					_pointLights.g += lightColor.g;
+					_pointLights.b += lightColor.b;
+
+				}
+
+			}
+
+		}
+
+		function calculateLight( lights, position, normal, color ) {
+
+			for ( let l = 0, ll = lights.length; l < ll; l ++ ) {
+
+				const light = lights[ l ];
+				const lightColor = light.color;
+
+				if ( light.isDirectionalLight ) {
+
+					const lightPosition = _vector3.setFromMatrixPosition( light.matrixWorld ).normalize();
+
+					let amount = normal.dot( lightPosition );
+
+					if ( amount <= 0 ) continue;
+
+					amount *= light.intensity;
+
+					color.r += lightColor.r * amount;
+					color.g += lightColor.g * amount;
+					color.b += lightColor.b * amount;
+
+				} else if ( light.isPointLight ) {
+
+					const lightPosition = _vector3.setFromMatrixPosition( light.matrixWorld );
+
+					let amount = normal.dot( _vector3.subVectors( lightPosition, position ).normalize() );
+
+					if ( amount <= 0 ) continue;
+
+					amount *= light.distance == 0 ? 1 : 1 - Math.min( position.distanceTo( lightPosition ) / light.distance, 1 );
+
+					if ( amount == 0 ) continue;
+
+					amount *= light.intensity;
+
+					color.r += lightColor.r * amount;
+					color.g += lightColor.g * amount;
+					color.b += lightColor.b * amount;
+
+				}
+
+			}
+
+		}
+
+		function renderSprite( v1, element, material ) {
+
+			let scaleX = element.scale.x * _svgWidthHalf;
+			let scaleY = element.scale.y * _svgHeightHalf;
+
+			if ( material.isPointsMaterial ) {
+
+				scaleX *= material.size;
+				scaleY *= material.size;
+
+			}
+
+			const path = 'M' + convert( v1.x - scaleX * 0.5 ) + ',' + convert( v1.y - scaleY * 0.5 ) + 'h' + convert( scaleX ) + 'v' + convert( scaleY ) + 'h' + convert( - scaleX ) + 'z';
+			let style = '';
+
+			if ( material.isSpriteMaterial || material.isPointsMaterial ) {
+
+				style = 'fill:' + material.color.getStyle( _this.outputColorSpace ) + ';fill-opacity:' + material.opacity;
+
+			}
+
+			addPath( style, path );
+
+		}
+
+		function renderLine( v1, v2, material ) {
+
+			const path = 'M' + convert( v1.positionScreen.x ) + ',' + convert( v1.positionScreen.y ) + 'L' + convert( v2.positionScreen.x ) + ',' + convert( v2.positionScreen.y );
+
+			if ( material.isLineBasicMaterial ) {
+
+				let style = 'fill:none;stroke:' + material.color.getStyle( _this.outputColorSpace ) + ';stroke-opacity:' + material.opacity + ';stroke-width:' + material.linewidth + ';stroke-linecap:' + material.linecap;
+
+				if ( material.isLineDashedMaterial ) {
+
+					style = style + ';stroke-dasharray:' + material.dashSize + ',' + material.gapSize;
+
+				}
+
+				addPath( style, path );
+
+			}
+
+		}
+
+		function renderFace3( v1, v2, v3, element, material ) {
+
+			_this.info.render.vertices += 3;
+			_this.info.render.faces ++;
+
+			const path = 'M' + convert( v1.positionScreen.x ) + ',' + convert( v1.positionScreen.y ) + 'L' + convert( v2.positionScreen.x ) + ',' + convert( v2.positionScreen.y ) + 'L' + convert( v3.positionScreen.x ) + ',' + convert( v3.positionScreen.y ) + 'z';
+			let style = '';
+
+			if ( material.isMeshBasicMaterial ) {
+
+				_color.copy( material.color );
+
+				if ( material.vertexColors ) {
+
+					_color.multiply( element.color );
+
+				}
+
+			} else if ( material.isMeshLambertMaterial || material.isMeshPhongMaterial || material.isMeshStandardMaterial ) {
+
+				_diffuseColor.copy( material.color );
+
+				if ( material.vertexColors ) {
+
+					_diffuseColor.multiply( element.color );
+
+				}
+
+				_color.copy( _ambientLight );
+
+				_centroid.copy( v1.positionWorld ).add( v2.positionWorld ).add( v3.positionWorld ).divideScalar( 3 );
+
+				calculateLight( _lights, _centroid, element.normalModel, _color );
+
+				_color.multiply( _diffuseColor ).add( material.emissive );
+
+			} else if ( material.isMeshNormalMaterial ) {
+
+				_normal.copy( element.normalModel ).applyMatrix3( _normalViewMatrix ).normalize();
+
+				_color.setRGB( _normal.x, _normal.y, _normal.z ).multiplyScalar( 0.5 ).addScalar( 0.5 );
+
+			}
+
+			if ( material.wireframe ) {
+
+				style = 'fill:none;stroke:' + _color.getStyle( _this.outputColorSpace ) + ';stroke-opacity:' + material.opacity + ';stroke-width:' + material.wireframeLinewidth + ';stroke-linecap:' + material.wireframeLinecap + ';stroke-linejoin:' + material.wireframeLinejoin;
+
+			} else {
+
+				style = 'fill:' + _color.getStyle( _this.outputColorSpace ) + ';fill-opacity:' + material.opacity;
+
+			}
+
+			addPath( style, path );
+
+		}
+
+		// Hide anti-alias gaps
+
+		function expand( v1, v2, pixels ) {
+
+			let x = v2.x - v1.x, y = v2.y - v1.y;
+			const det = x * x + y * y;
+
+			if ( det === 0 ) return;
+
+			const idet = pixels / Math.sqrt( det );
+
+			x *= idet; y *= idet;
+
+			v2.x += x; v2.y += y;
+			v1.x -= x; v1.y -= y;
+
+		}
+
+		function addPath( style, path ) {
+
+			if ( _currentStyle === style ) {
+
+				_currentPath += path;
+
+			} else {
+
+				flushPath();
+
+				_currentStyle = style;
+				_currentPath = path;
+
+			}
+
+		}
+
+		function flushPath() {
+
+			if ( _currentPath ) {
+
+				_svgNode = getPathNode( _pathCount ++ );
+				_svgNode.setAttribute( 'd', _currentPath );
+				_svgNode.setAttribute( 'style', _currentStyle );
+				_svg.appendChild( _svgNode );
+
+			}
+
+			_currentPath = '';
+			_currentStyle = '';
+
+		}
+
+		function getPathNode( id ) {
+
+			if ( _svgPathPool[ id ] == null ) {
+
+				_svgPathPool[ id ] = document.createElementNS( 'http://www.w3.org/2000/svg', 'path' );
+
+				if ( _quality == 0 ) {
+
+					_svgPathPool[ id ].setAttribute( 'shape-rendering', 'crispEdges' ); //optimizeSpeed
+
+				}
+
+				return _svgPathPool[ id ];
+
+			}
+
+			return _svgPathPool[ id ];
+
+		}
+
+	}
+
+}
+
+export { SVGObject, SVGRenderer };

public/sdk/three/jsm/renderers/common/Animation.js

@@ -0,0 +1,50 @@
+class Animation {
+
+	constructor( nodes, info ) {
+
+		this.nodes = nodes;
+		this.info = info;
+
+		this.animationLoop = null;
+		this.requestId = null;
+
+		this._init();
+
+	}
+
+	_init() {
+
+		const update = ( time, frame ) => {
+
+			this.requestId = self.requestAnimationFrame( update );
+
+			if ( this.info.autoReset === true ) this.info.reset();
+
+			this.nodes.nodeFrame.update();
+
+			this.info.frame = this.nodes.nodeFrame.frameId;
+
+			if ( this.animationLoop !== null ) this.animationLoop( time, frame );
+
+		};
+
+		update();
+
+	}
+
+	dispose() {
+
+		self.cancelAnimationFrame( this.requestId );
+		this.requestId = null;
+
+	}
+
+	setAnimationLoop( callback ) {
+
+		this.animationLoop = callback;
+
+	}
+
+}
+
+export default Animation;

public/sdk/three/jsm/renderers/common/Attributes.js

@@ -0,0 +1,75 @@
+import DataMap from './DataMap.js';
+import { AttributeType } from './Constants.js';
+import { DynamicDrawUsage } from 'three';
+
+class Attributes extends DataMap {
+
+	constructor( backend ) {
+
+		super();
+
+		this.backend = backend;
+
+	}
+
+	delete( attribute ) {
+
+		const attributeData = super.delete( attribute );
+
+		if ( attributeData !== undefined ) {
+
+			this.backend.destroyAttribute( attribute );
+
+		}
+
+	}
+
+	update( attribute, type ) {
+
+		const data = this.get( attribute );
+
+		if ( data.version === undefined ) {
+
+			if ( type === AttributeType.VERTEX ) {
+
+				this.backend.createAttribute( attribute );
+
+			} else if ( type === AttributeType.INDEX ) {
+
+				this.backend.createIndexAttribute( attribute );
+
+			} else if ( type === AttributeType.STORAGE ) {
+
+				this.backend.createStorageAttribute( attribute );
+
+			}
+
+			data.version = this._getBufferAttribute( attribute ).version;
+
+		} else {
+
+			const bufferAttribute = this._getBufferAttribute( attribute );
+
+			if ( data.version < bufferAttribute.version || bufferAttribute.usage === DynamicDrawUsage ) {
+
+				this.backend.updateAttribute( attribute );
+
+				data.version = bufferAttribute.version;
+
+			}
+
+		}
+
+	}
+
+	_getBufferAttribute( attribute ) {
+
+		if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
+
+		return attribute;
+
+	}
+
+}
+
+export default Attributes;

public/sdk/three/jsm/renderers/common/Backend.js

@@ -0,0 +1,195 @@
+let vector2 = null;
+let vector4 = null;
+let color4 = null;
+
+import Color4 from './Color4.js';
+import { Vector2, Vector4, REVISION, createCanvasElement } from 'three';
+
+class Backend {
+
+	constructor( parameters = {} ) {
+
+		this.parameters = Object.assign( {}, parameters );
+		this.data = new WeakMap();
+		this.renderer = null;
+		this.domElement = null;
+
+	}
+
+	async init( renderer ) {
+
+		this.renderer = renderer;
+
+	}
+
+	// render context
+
+	begin( renderContext ) { }
+
+	finish( renderContext ) { }
+
+	// render object
+
+	draw( renderObject, info ) { }
+
+	// program
+
+	createProgram( program ) { }
+
+	destroyProgram( program ) { }
+
+	// bindings
+
+	createBindings( renderObject ) { }
+
+	updateBindings( renderObject ) { }
+
+	// pipeline
+
+	createRenderPipeline( renderObject ) { }
+
+	createComputePipeline( computeNode, pipeline ) { }
+
+	destroyPipeline( pipeline ) { }
+
+	// cache key
+
+	needsRenderUpdate( renderObject ) { } // return Boolean ( fast test )
+
+	getRenderCacheKey( renderObject ) { } // return String
+
+	// node builder
+
+	createNodeBuilder( renderObject ) { } // return NodeBuilder (ADD IT)
+
+	// textures
+
+	createSampler( texture ) { }
+
+	createDefaultTexture( texture ) { }
+
+	createTexture( texture ) { }
+
+	copyTextureToBuffer( texture, x, y, width, height ) {}
+
+	// attributes
+
+	createAttribute( attribute ) { }
+
+	createIndexAttribute( attribute ) { }
+
+	updateAttribute( attribute ) { }
+
+	destroyAttribute( attribute ) { }
+
+	// canvas
+
+	getContext() { }
+
+	updateSize() { }
+
+	// utils
+
+	resolveTimestampAsync( renderContext, type ) { }
+
+	hasFeatureAsync( name ) { } // return Boolean
+
+	hasFeature( name ) { } // return Boolean
+
+	getInstanceCount( renderObject ) {
+
+		const { object, geometry } = renderObject;
+
+		return geometry.isInstancedBufferGeometry ? geometry.instanceCount : ( object.isInstancedMesh ? object.count : 1 );
+
+	}
+
+	getDrawingBufferSize() {
+
+		vector2 = vector2 || new Vector2();
+
+		return this.renderer.getDrawingBufferSize( vector2 );
+
+	}
+
+	getScissor() {
+
+		vector4 = vector4 || new Vector4();
+
+		return this.renderer.getScissor( vector4 );
+
+	}
+
+	setScissorTest( boolean ) { }
+
+	getClearColor() {
+
+		const renderer = this.renderer;
+
+		color4 = color4 || new Color4();
+
+		renderer.getClearColor( color4 );
+
+		color4.getRGB( color4, this.renderer.currentColorSpace );
+
+		return color4;
+
+	}
+
+	getDomElement() {
+
+		let domElement = this.domElement;
+
+		if ( domElement === null ) {
+
+			domElement = ( this.parameters.canvas !== undefined ) ? this.parameters.canvas : createCanvasElement();
+
+			// OffscreenCanvas does not have setAttribute, see #22811
+			if ( 'setAttribute' in domElement ) domElement.setAttribute( 'data-engine', `three.js r${REVISION} webgpu` );
+
+			this.domElement = domElement;
+
+		}
+
+		return domElement;
+
+	}
+
+	// resource properties
+
+	set( object, value ) {
+
+		this.data.set( object, value );
+
+	}
+
+	get( object ) {
+
+		let map = this.data.get( object );
+
+		if ( map === undefined ) {
+
+			map = {};
+			this.data.set( object, map );
+
+		}
+
+		return map;
+
+	}
+
+	has( object ) {
+
+		return this.data.has( object );
+
+	}
+
+	delete( object ) {
+
+		this.data.delete( object );
+
+	}
+
+}
+
+export default Backend;

public/sdk/three/jsm/renderers/common/Background.js

@@ -0,0 +1,134 @@
+import DataMap from './DataMap.js';
+import Color4 from './Color4.js';
+import { Mesh, SphereGeometry, BackSide, LinearSRGBColorSpace } from 'three';
+import { vec4, context, normalWorld, backgroundBlurriness, backgroundIntensity, NodeMaterial, modelViewProjection } from '../../nodes/Nodes.js';
+
+const _clearColor = new Color4();
+
+class Background extends DataMap {
+
+	constructor( renderer, nodes ) {
+
+		super();
+
+		this.renderer = renderer;
+		this.nodes = nodes;
+
+	}
+
+	update( scene, renderList, renderContext ) {
+
+		const renderer = this.renderer;
+		const background = this.nodes.getBackgroundNode( scene ) || scene.background;
+
+		let forceClear = false;
+
+		if ( background === null ) {
+
+			// no background settings, use clear color configuration from the renderer
+
+			renderer._clearColor.getRGB( _clearColor, LinearSRGBColorSpace );
+			_clearColor.a = renderer._clearColor.a;
+
+		} else if ( background.isColor === true ) {
+
+			// background is an opaque color
+
+			background.getRGB( _clearColor, LinearSRGBColorSpace );
+			_clearColor.a = 1;
+
+			forceClear = true;
+
+		} else if ( background.isNode === true ) {
+
+			const sceneData = this.get( scene );
+			const backgroundNode = background;
+
+			_clearColor.copy( renderer._clearColor );
+
+			let backgroundMesh = sceneData.backgroundMesh;
+
+			if ( backgroundMesh === undefined ) {
+
+				const backgroundMeshNode = context( vec4( backgroundNode ).mul( backgroundIntensity ), {
+					// @TODO: Add Texture2D support using node context
+					getUV: () => normalWorld,
+					getTextureLevel: () => backgroundBlurriness
+				} );
+
+				let viewProj = modelViewProjection();
+				viewProj = viewProj.setZ( viewProj.w );
+
+				const nodeMaterial = new NodeMaterial();
+				nodeMaterial.side = BackSide;
+				nodeMaterial.depthTest = false;
+				nodeMaterial.depthWrite = false;
+				nodeMaterial.fog = false;
+				nodeMaterial.vertexNode = viewProj;
+				nodeMaterial.fragmentNode = backgroundMeshNode;
+
+				sceneData.backgroundMeshNode = backgroundMeshNode;
+				sceneData.backgroundMesh = backgroundMesh = new Mesh( new SphereGeometry( 1, 32, 32 ), nodeMaterial );
+				backgroundMesh.frustumCulled = false;
+
+				backgroundMesh.onBeforeRender = function ( renderer, scene, camera ) {
+
+					this.matrixWorld.copyPosition( camera.matrixWorld );
+
+				};
+
+			}
+
+			const backgroundCacheKey = backgroundNode.getCacheKey();
+
+			if ( sceneData.backgroundCacheKey !== backgroundCacheKey ) {
+
+				sceneData.backgroundMeshNode.node = vec4( backgroundNode ).mul( backgroundIntensity );
+
+				backgroundMesh.material.needsUpdate = true;
+
+				sceneData.backgroundCacheKey = backgroundCacheKey;
+
+			}
+
+			renderList.unshift( backgroundMesh, backgroundMesh.geometry, backgroundMesh.material, 0, 0, null );
+
+		} else {
+
+			console.error( 'THREE.Renderer: Unsupported background configuration.', background );
+
+		}
+
+		//
+
+		if ( renderer.autoClear === true || forceClear === true ) {
+
+			_clearColor.multiplyScalar( _clearColor.a );
+
+			const clearColorValue = renderContext.clearColorValue;
+
+			clearColorValue.r = _clearColor.r;
+			clearColorValue.g = _clearColor.g;
+			clearColorValue.b = _clearColor.b;
+			clearColorValue.a = _clearColor.a;
+
+			renderContext.depthClearValue = renderer._clearDepth;
+			renderContext.stencilClearValue = renderer._clearStencil;
+
+			renderContext.clearColor = renderer.autoClearColor === true;
+			renderContext.clearDepth = renderer.autoClearDepth === true;
+			renderContext.clearStencil = renderer.autoClearStencil === true;
+
+		} else {
+
+			renderContext.clearColor = false;
+			renderContext.clearDepth = false;
+			renderContext.clearStencil = false;
+
+		}
+
+	}
+
+}
+
+export default Background;

public/sdk/three/jsm/renderers/common/Binding.js

@@ -0,0 +1,25 @@
+class Binding {
+
+	constructor( name = '' ) {
+
+		this.name = name;
+
+		this.visibility = 0;
+
+	}
+
+	setVisibility( visibility ) {
+
+		this.visibility |= visibility;
+
+	}
+
+	clone() {
+
+		return Object.assign( new this.constructor(), this );
+
+	}
+
+}
+
+export default Binding;

public/sdk/three/jsm/renderers/common/Bindings.js

@@ -0,0 +1,173 @@
+import DataMap from './DataMap.js';
+import { AttributeType } from './Constants.js';
+
+class Bindings extends DataMap {
+
+	constructor( backend, nodes, textures, attributes, pipelines, info ) {
+
+		super();
+
+		this.backend = backend;
+		this.textures = textures;
+		this.pipelines = pipelines;
+		this.attributes = attributes;
+		this.nodes = nodes;
+		this.info = info;
+
+		this.pipelines.bindings = this; // assign bindings to pipelines
+
+	}
+
+	getForRender( renderObject ) {
+
+		const bindings = renderObject.getBindings();
+
+		const data = this.get( renderObject );
+
+		if ( data.bindings !== bindings ) {
+
+			// each object defines an array of bindings (ubos, textures, samplers etc.)
+
+			data.bindings = bindings;
+
+			this._init( bindings );
+
+			this.backend.createBindings( bindings );
+
+		}
+
+		return data.bindings;
+
+	}
+
+	getForCompute( computeNode ) {
+
+		const data = this.get( computeNode );
+
+		if ( data.bindings === undefined ) {
+
+			const nodeBuilderState = this.nodes.getForCompute( computeNode );
+
+			const bindings = nodeBuilderState.bindings;
+
+			data.bindings = bindings;
+
+			this._init( bindings );
+
+			this.backend.createBindings( bindings );
+
+		}
+
+		return data.bindings;
+
+	}
+
+	updateForCompute( computeNode ) {
+
+		this._update( computeNode, this.getForCompute( computeNode ) );
+
+	}
+
+	updateForRender( renderObject ) {
+
+		this._update( renderObject, this.getForRender( renderObject ) );
+
+	}
+
+	_init( bindings ) {
+
+		for ( const binding of bindings ) {
+
+			if ( binding.isSampledTexture ) {
+
+				this.textures.updateTexture( binding.texture );
+
+			} else if ( binding.isStorageBuffer ) {
+
+				const attribute = binding.attribute;
+
+				this.attributes.update( attribute, AttributeType.STORAGE );
+
+			}
+
+		}
+
+	}
+
+	_update( object, bindings ) {
+
+		const { backend } = this;
+
+		let needsBindingsUpdate = false;
+
+		// iterate over all bindings and check if buffer updates or a new binding group is required
+
+		for ( const binding of bindings ) {
+
+			if ( binding.isNodeUniformsGroup ) {
+
+				const updated = this.nodes.updateGroup( binding );
+
+				if ( ! updated ) continue;
+
+			}
+
+			if ( binding.isUniformBuffer ) {
+
+				const updated = binding.update();
+
+				if ( updated ) {
+
+					backend.updateBinding( binding );
+
+				}
+
+			} else if ( binding.isSampledTexture ) {
+
+				const texture = binding.texture;
+
+				if ( binding.needsBindingsUpdate ) needsBindingsUpdate = true;
+
+				const updated = binding.update();
+
+				if ( updated ) {
+
+					this.textures.updateTexture( binding.texture );
+
+				}
+
+				if ( texture.isStorageTexture === true ) {
+
+					const textureData = this.get( texture );
+
+					if ( binding.store === true ) {
+
+						textureData.needsMipmap = true;
+
+					} else if ( texture.generateMipmaps === true && this.textures.needsMipmaps( texture ) && textureData.needsMipmap === true ) {
+
+						this.backend.generateMipmaps( texture );
+
+						textureData.needsMipmap = false;
+
+					}
+
+				}
+
+			}
+
+		}
+
+		if ( needsBindingsUpdate === true ) {
+
+			const pipeline = this.pipelines.getForRender( object );
+
+			this.backend.updateBindings( bindings, pipeline );
+
+		}
+
+	}
+
+}
+
+export default Bindings;

public/sdk/three/jsm/renderers/common/Buffer.js

@@ -0,0 +1,38 @@
+import Binding from './Binding.js';
+import { getFloatLength } from './BufferUtils.js';
+
+class Buffer extends Binding {
+
+	constructor( name, buffer = null ) {
+
+		super( name );
+
+		this.isBuffer = true;
+
+		this.bytesPerElement = Float32Array.BYTES_PER_ELEMENT;
+
+		this._buffer = buffer;
+
+	}
+
+	get byteLength() {
+
+		return getFloatLength( this._buffer.byteLength );
+
+	}
+
+	get buffer() {
+
+		return this._buffer;
+
+	}
+
+	update() {
+
+		return true;
+
+	}
+
+}
+
+export default Buffer;

public/sdk/three/jsm/renderers/common/BufferUtils.js

@@ -0,0 +1,33 @@
+import { GPU_CHUNK_BYTES } from './Constants.js';
+
+function getFloatLength( floatLength ) {
+
+	// ensure chunk size alignment (STD140 layout)
+
+	return floatLength + ( ( GPU_CHUNK_BYTES - ( floatLength % GPU_CHUNK_BYTES ) ) % GPU_CHUNK_BYTES );
+
+}
+
+function getVectorLength( count, vectorLength = 4 ) {
+
+	const strideLength = getStrideLength( vectorLength );
+
+	const floatLength = strideLength * count;
+
+	return getFloatLength( floatLength );
+
+}
+
+function getStrideLength( vectorLength ) {
+
+	const strideLength = 4;
+
+	return vectorLength + ( ( strideLength - ( vectorLength % strideLength ) ) % strideLength );
+
+}
+
+export {
+	getFloatLength,
+	getVectorLength,
+	getStrideLength
+};

public/sdk/three/jsm/renderers/common/ChainMap.js

@@ -0,0 +1,89 @@
+export default class ChainMap {
+
+	constructor() {
+
+		this.weakMap = new WeakMap();
+
+	}
+
+	get( keys ) {
+
+		if ( Array.isArray( keys ) ) {
+
+			let map = this.weakMap;
+
+			for ( let i = 0; i < keys.length; i ++ ) {
+
+				map = map.get( keys[ i ] );
+
+				if ( map === undefined ) return undefined;
+
+			}
+
+			return map.get( keys[ keys.length - 1 ] );
+
+		} else {
+
+			return super.get( keys );
+
+		}
+
+	}
+
+	set( keys, value ) {
+
+		if ( Array.isArray( keys ) ) {
+
+			let map = this.weakMap;
+
+			for ( let i = 0; i < keys.length; i ++ ) {
+
+				const key = keys[ i ];
+
+				if ( map.has( key ) === false ) map.set( key, new WeakMap() );
+
+				map = map.get( key );
+
+			}
+
+			return map.set( keys[ keys.length - 1 ], value );
+
+		} else {
+
+			return super.set( keys, value );
+
+		}
+
+	}
+
+	delete( keys ) {
+
+		if ( Array.isArray( keys ) ) {
+
+			let map = this.weakMap;
+
+			for ( let i = 0; i < keys.length; i ++ ) {
+
+				map = map.get( keys[ i ] );
+
+				if ( map === undefined ) return false;
+
+			}
+
+			return map.delete( keys[ keys.length - 1 ] );
+
+		} else {
+
+			return super.delete( keys );
+
+		}
+
+	}
+
+	dispose() {
+
+		this.weakMap.clear();
+
+	}
+
+}

public/sdk/three/jsm/renderers/common/ClippingContext.js

@@ -0,0 +1,165 @@
+import { Matrix3, Plane, Vector4 } from 'three';
+
+const _plane = new Plane();
+const _viewNormalMatrix = new Matrix3();
+
+let _clippingContextVersion = 0;
+
+class ClippingContext {
+
+	constructor() {
+
+		this.version = ++ _clippingContextVersion;
+
+		this.globalClippingCount = 0;
+
+		this.localClippingCount = 0;
+		this.localClippingEnabled = false;
+		this.localClipIntersection = false;
+
+		this.planes = [];
+
+		this.parentVersion = 0;
+
+	}
+
+	projectPlanes( source, offset ) {
+
+		const l = source.length;
+		const planes = this.planes;
+
+		for ( let i = 0; i < l; i ++ ) {
+
+			_plane.copy( source[ i ] ).applyMatrix4( this.viewMatrix, _viewNormalMatrix );
+
+			const v = planes[ offset + i ];
+			const normal = _plane.normal;
+
+			v.x = - normal.x;
+			v.y = - normal.y;
+			v.z = - normal.z;
+			v.w = _plane.constant;
+
+		}
+
+	}
+
+	updateGlobal( renderer, camera ) {
+
+		const rendererClippingPlanes = renderer.clippingPlanes;
+		this.viewMatrix = camera.matrixWorldInverse;
+
+		_viewNormalMatrix.getNormalMatrix( this.viewMatrix );
+
+		let update = false;
+
+		if ( Array.isArray( rendererClippingPlanes ) && rendererClippingPlanes.length !== 0 ) {
+
+			const l = rendererClippingPlanes.length;
+
+			if ( l !== this.globalClippingCount ) {
+
+				const planes = [];
+
+				for ( let i = 0; i < l; i ++ ) {
+
+					planes.push( new Vector4() );
+
+				}
+
+				this.globalClippingCount = l;
+				this.planes = planes;
+
+				update = true;
+
+			}
+
+			this.projectPlanes( rendererClippingPlanes, 0 );
+
+		} else if ( this.globalClippingCount !== 0 ) {
+
+			this.globalClippingCount = 0;
+			this.planes = [];
+			update = true;
+
+		}
+
+		if ( renderer.localClippingEnabled !== this.localClippingEnabled ) {
+
+			this.localClippingEnabled = renderer.localClippingEnabled;
+			update = true;
+
+		}
+
+		if ( update ) this.version = _clippingContextVersion ++;
+
+	}
+
+	update( parent, material ) {
+
+		let update = false;
+
+		if ( this !== parent && parent.version !== this.parentVersion ) {
+
+			this.globalClippingCount = material.isShadowNodeMaterial ? 0 : parent.globalClippingCount;
+			this.localClippingEnabled = parent.localClippingEnabled;
+			this.planes = Array.from( parent.planes );
+			this.parentVersion = parent.version;
+			this.viewMatrix = parent.viewMatrix;
+
+
+			update = true;
+
+		}
+
+		if ( this.localClippingEnabled ) {
+
+			const localClippingPlanes = material.clippingPlanes;
+
+			if ( ( Array.isArray( localClippingPlanes ) && localClippingPlanes.length !== 0 ) ) {
+
+				const l = localClippingPlanes.length;
+				const planes = this.planes;
+				const offset = this.globalClippingCount;
+
+				if ( update || l !== this.localClippingCount ) {
+
+					planes.length = offset + l;
+
+					for ( let i = 0; i < l; i ++ ) {
+
+						planes[ offset + i ] = new Vector4();
+
+					}
+
+					this.localClippingCount = l;
+					update = true;
+
+				}
+
+				this.projectPlanes( localClippingPlanes, offset );
+
+
+			} else if ( this.localClippingCount !== 0 ) {
+
+				this.localClippingCount = 0;
+				update = true;
+
+			}
+
+			if ( this.localClipIntersection !== material.clipIntersection ) {
+
+				this.localClipIntersection = material.clipIntersection;
+				update = true;
+
+			}
+
+		}
+
+		if ( update ) this.version = _clippingContextVersion ++;
+
+	}
+
+}
+
+export default ClippingContext;

public/sdk/three/jsm/renderers/common/Color4.js

@@ -0,0 +1,37 @@
+import { Color } from 'three';
+
+class Color4 extends Color {
+
+	constructor( r, g, b, a = 1 ) {
+
+		super( r, g, b );
+
+		this.a = a;
+
+	}
+
+	set( r, g, b, a = 1 ) {
+
+		this.a = a;
+
+		return super.set( r, g, b );
+
+	}
+
+	copy( color ) {
+
+		if ( color.a !== undefined ) this.a = color.a;
+
+		return super.copy( color );
+
+	}
+
+	clone() {
+
+		return new this.constructor( this.r, this.g, this.b, this.a );
+
+	}
+
+}
+
+export default Color4;

public/sdk/three/jsm/renderers/common/ComputePipeline.js

@@ -0,0 +1,17 @@
+import Pipeline from './Pipeline.js';
+
+class ComputePipeline extends Pipeline {
+
+	constructor( cacheKey, computeProgram ) {
+
+		super( cacheKey );
+
+		this.computeProgram = computeProgram;
+
+		this.isComputePipeline = true;
+
+	}
+
+}
+
+export default ComputePipeline;

public/sdk/three/jsm/renderers/common/Constants.js

@@ -0,0 +1,14 @@
+export const AttributeType = {
+	VERTEX: 1,
+	INDEX: 2,
+	STORAGE: 4
+};
+
+// size of a chunk in bytes (STD140 layout)
+
+export const GPU_CHUNK_BYTES = 16;
+
+// @TODO: Move to src/constants.js
+
+export const BlendColorFactor = 211;
+export const OneMinusBlendColorFactor = 212;

public/sdk/three/jsm/renderers/common/CubeRenderTarget.js

@@ -0,0 +1,65 @@
+import { WebGLCubeRenderTarget, Scene, CubeCamera, BoxGeometry, Mesh, BackSide, NoBlending, LinearFilter, LinearMipmapLinearFilter } from 'three';
+import { equirectUV } from '../../nodes/utils/EquirectUVNode.js';
+import { texture as TSL_Texture } from '../../nodes/accessors/TextureNode.js';
+import { positionWorldDirection } from '../../nodes/accessors/PositionNode.js';
+import { createNodeMaterialFromType } from '../../nodes/materials/NodeMaterial.js';
+
+// @TODO: Consider rename WebGLCubeRenderTarget to just CubeRenderTarget
+
+class CubeRenderTarget extends WebGLCubeRenderTarget {
+
+	constructor( size = 1, options = {} ) {
+
+		super( size, options );
+
+		this.isCubeRenderTarget = true;
+
+	}
+
+	fromEquirectangularTexture( renderer, texture ) {
+
+		const currentMinFilter = texture.minFilter;
+		const currentGenerateMipmaps = texture.generateMipmaps;
+
+		texture.generateMipmaps = true;
+
+		this.texture.type = texture.type;
+		this.texture.colorSpace = texture.colorSpace;
+
+		this.texture.generateMipmaps = texture.generateMipmaps;
+		this.texture.minFilter = texture.minFilter;
+		this.texture.magFilter = texture.magFilter;
+
+		const geometry = new BoxGeometry( 5, 5, 5 );
+
+		const uvNode = equirectUV( positionWorldDirection );
+
+		const material = createNodeMaterialFromType( 'MeshBasicNodeMaterial' );
+		material.colorNode = TSL_Texture( texture, uvNode, 0 );
+		material.side = BackSide;
+		material.blending = NoBlending;
+
+		const mesh = new Mesh( geometry, material );
+
+		const scene = new Scene();
+		scene.add( mesh );
+
+		// Avoid blurred poles
+		if ( texture.minFilter === LinearMipmapLinearFilter ) texture.minFilter = LinearFilter;
+
+		const camera = new CubeCamera( 1, 10, this );
+		camera.update( renderer, scene );
+
+		texture.minFilter = currentMinFilter;
+		texture.currentGenerateMipmaps = currentGenerateMipmaps;
+
+		mesh.geometry.dispose();
+		mesh.material.dispose();
+
+		return this;
+
+	}
+
+}
+
+export default CubeRenderTarget;

public/sdk/three/jsm/renderers/common/DataMap.js

@@ -0,0 +1,54 @@
+class DataMap {
+
+	constructor() {
+
+		this.data = new WeakMap();
+
+	}
+
+	get( object ) {
+
+		let map = this.data.get( object );
+
+		if ( map === undefined ) {
+
+			map = {};
+			this.data.set( object, map );
+
+		}
+
+		return map;
+
+	}
+
+	delete( object ) {
+
+		let map;
+
+		if ( this.data.has( object ) ) {
+
+			map = this.data.get( object );
+
+			this.data.delete( object );
+
+		}
+
+		return map;
+
+	}
+
+	has( object ) {
+
+		return this.data.has( object );
+
+	}
+
+	dispose() {
+
+		this.data = new WeakMap();
+
+	}
+
+}
+
+export default DataMap;

public/sdk/three/jsm/renderers/common/Geometries.js

@@ -0,0 +1,215 @@
+import DataMap from './DataMap.js';
+import { AttributeType } from './Constants.js';
+import { Uint32BufferAttribute, Uint16BufferAttribute } from 'three';
+
+function arrayNeedsUint32( array ) {
+
+	// assumes larger values usually on last
+
+	for ( let i = array.length - 1; i >= 0; -- i ) {
+
+		if ( array[ i ] >= 65535 ) return true; // account for PRIMITIVE_RESTART_FIXED_INDEX, #24565
+
+	}
+
+	return false;
+
+}
+
+function getWireframeVersion( geometry ) {
+
+	return ( geometry.index !== null ) ? geometry.index.version : geometry.attributes.position.version;
+
+}
+
+function getWireframeIndex( geometry ) {
+
+	const indices = [];
+
+	const geometryIndex = geometry.index;
+	const geometryPosition = geometry.attributes.position;
+
+	if ( geometryIndex !== null ) {
+
+		const array = geometryIndex.array;
+
+		for ( let i = 0, l = array.length; i < l; i += 3 ) {
+
+			const a = array[ i + 0 ];
+			const b = array[ i + 1 ];
+			const c = array[ i + 2 ];
+
+			indices.push( a, b, b, c, c, a );
+
+		}
+
+	} else {
+
+		const array = geometryPosition.array;
+
+		for ( let i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) {
+
+			const a = i + 0;
+			const b = i + 1;
+			const c = i + 2;
+
+			indices.push( a, b, b, c, c, a );
+
+		}
+
+	}
+
+	const attribute = new ( arrayNeedsUint32( indices ) ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 );
+	attribute.version = getWireframeVersion( geometry );
+
+	return attribute;
+
+}
+
+class Geometries extends DataMap {
+
+	constructor( attributes, info ) {
+
+		super();
+
+		this.attributes = attributes;
+		this.info = info;
+
+		this.wireframes = new WeakMap();
+		this.attributeCall = new WeakMap();
+
+	}
+
+	has( renderObject ) {
+
+		const geometry = renderObject.geometry;
+
+		return super.has( geometry ) && this.get( geometry ).initialized === true;
+
+	}
+
+	updateForRender( renderObject ) {
+
+		if ( this.has( renderObject ) === false ) this.initGeometry( renderObject );
+
+		this.updateAttributes( renderObject );
+
+	}
+
+	initGeometry( renderObject ) {
+
+		const geometry = renderObject.geometry;
+		const geometryData = this.get( geometry );
+
+		geometryData.initialized = true;
+
+		this.info.memory.geometries ++;
+
+		const onDispose = () => {
+
+			this.info.memory.geometries --;
+
+			const index = geometry.index;
+			const geometryAttributes = renderObject.getAttributes();
+
+			if ( index !== null ) {
+
+				this.attributes.delete( index );
+
+			}
+
+			for ( const geometryAttribute of geometryAttributes ) {
+
+				this.attributes.delete( geometryAttribute );
+
+			}
+
+			const wireframeAttribute = this.wireframes.get( geometry );
+
+			if ( wireframeAttribute !== undefined ) {
+
+				this.attributes.delete( wireframeAttribute );
+
+			}
+
+			geometry.removeEventListener( 'dispose', onDispose );
+
+		};
+
+		geometry.addEventListener( 'dispose', onDispose );
+
+	}
+
+	updateAttributes( renderObject ) {
+
+		const attributes = renderObject.getAttributes();
+
+		for ( const attribute of attributes ) {
+
+			this.updateAttribute( attribute, AttributeType.VERTEX );
+
+		}
+
+		const index = this.getIndex( renderObject );
+
+		if ( index !== null ) {
+
+			this.updateAttribute( index, AttributeType.INDEX );
+
+		}
+
+	}
+
+	updateAttribute( attribute, type ) {
+
+		const callId = this.info.render.calls;
+
+		if ( this.attributeCall.get( attribute ) !== callId ) {
+
+			this.attributes.update( attribute, type );
+
+			this.attributeCall.set( attribute, callId );
+
+		}
+
+	}
+
+	getIndex( renderObject ) {
+
+		const { geometry, material } = renderObject;
+
+		let index = geometry.index;
+
+		if ( material.wireframe === true ) {
+
+			const wireframes = this.wireframes;
+
+			let wireframeAttribute = wireframes.get( geometry );
+
+			if ( wireframeAttribute === undefined ) {
+
+				wireframeAttribute = getWireframeIndex( geometry );
+
+				wireframes.set( geometry, wireframeAttribute );
+
+			} else if ( wireframeAttribute.version !== getWireframeVersion( geometry ) ) {
+
+				this.attributes.delete( wireframeAttribute );
+
+				wireframeAttribute = getWireframeIndex( geometry );
+
+				wireframes.set( geometry, wireframeAttribute );
+
+			}
+
+			index = wireframeAttribute;
+
+		}
+
+		return index;
+
+	}
+
+}
+
+export default Geometries;

public/sdk/three/jsm/renderers/common/Info.js

@@ -0,0 +1,99 @@
+class Info {
+
+	constructor() {
+
+		this.autoReset = true;
+
+		this.frame = 0;
+		this.calls = 0;
+
+		this.render = {
+			calls: 0,
+			drawCalls: 0,
+			triangles: 0,
+			points: 0,
+			lines: 0,
+			timestamp: 0
+		};
+
+		this.compute = {
+			calls: 0,
+			computeCalls: 0,
+			timestamp: 0
+		};
+
+		this.memory = {
+			geometries: 0,
+			textures: 0
+		};
+
+	}
+
+	update( object, count, instanceCount ) {
+
+		this.render.drawCalls ++;
+
+		if ( object.isMesh || object.isSprite ) {
+
+			this.render.triangles += instanceCount * ( count / 3 );
+
+		} else if ( object.isPoints ) {
+
+			this.render.points += instanceCount * count;
+
+		} else if ( object.isLineSegments ) {
+
+			this.render.lines += instanceCount * ( count / 2 );
+
+		} else if ( object.isLine ) {
+
+			this.render.lines += instanceCount * ( count - 1 );
+
+		} else {
+
+			console.error( 'THREE.WebGPUInfo: Unknown object type.' );
+
+		}
+
+	}
+
+	updateTimestamp( type, time ) {
+
+		this[ type ].timestamp += time;
+
+	}
+
+	reset() {
+
+		this.render.drawCalls = 0;
+		this.compute.computeCalls = 0;
+
+		this.render.triangles = 0;
+		this.render.points = 0;
+		this.render.lines = 0;
+
+		this.render.timestamp = 0;
+		this.compute.timestamp = 0;
+
+	}
+
+	dispose() {
+
+		this.reset();
+
+		this.calls = 0;
+
+		this.render.calls = 0;
+		this.compute.calls = 0;
+
+		this.render.timestamp = 0;
+		this.compute.timestamp = 0;
+		this.memory.geometries = 0;
+		this.memory.textures = 0;
+
+	}
+
+}
+
+
+export default Info;

public/sdk/three/jsm/renderers/common/Pipeline.js

@@ -0,0 +1,13 @@
+class Pipeline {
+
+	constructor( cacheKey ) {
+
+		this.cacheKey = cacheKey;
+
+		this.usedTimes = 0;
+
+	}
+
+}
+
+export default Pipeline;

public/sdk/three/jsm/renderers/common/Pipelines.js

@@ -0,0 +1,322 @@
+import DataMap from './DataMap.js';
+import RenderPipeline from './RenderPipeline.js';
+import ComputePipeline from './ComputePipeline.js';
+import ProgrammableStage from './ProgrammableStage.js';
+
+class Pipelines extends DataMap {
+
+	constructor( backend, nodes ) {
+
+		super();
+
+		this.backend = backend;
+		this.nodes = nodes;
+
+		this.bindings = null; // set by the bindings
+
+		this.caches = new Map();
+		this.programs = {
+			vertex: new Map(),
+			fragment: new Map(),
+			compute: new Map()
+		};
+
+	}
+
+	getForCompute( computeNode, bindings ) {
+
+		const { backend } = this;
+
+		const data = this.get( computeNode );
+
+		if ( this._needsComputeUpdate( computeNode ) ) {
+
+			const previousPipeline = data.pipeline;
+
+			if ( previousPipeline ) {
+
+				previousPipeline.usedTimes --;
+				previousPipeline.computeProgram.usedTimes --;
+
+			}
+
+			// get shader
+
+			const nodeBuilderState = this.nodes.getForCompute( computeNode );
+
+			// programmable stage
+
+			let stageCompute = this.programs.compute.get( nodeBuilderState.computeShader );
+
+			if ( stageCompute === undefined ) {
+
+				if ( previousPipeline && previousPipeline.computeProgram.usedTimes === 0 ) this._releaseProgram( previousPipeline.computeProgram );
+
+				stageCompute = new ProgrammableStage( nodeBuilderState.computeShader, 'compute', nodeBuilderState.transforms, nodeBuilderState.nodeAttributes );
+				this.programs.compute.set( nodeBuilderState.computeShader, stageCompute );
+
+				backend.createProgram( stageCompute );
+
+			}
+
+			// determine compute pipeline
+
+			const cacheKey = this._getComputeCacheKey( computeNode, stageCompute );
+
+			let pipeline = this.caches.get( cacheKey );
+
+			if ( pipeline === undefined ) {
+
+				if ( previousPipeline && previousPipeline.usedTimes === 0 ) this._releasePipeline( computeNode );
+
+				pipeline = this._getComputePipeline( computeNode, stageCompute, cacheKey, bindings );
+
+			}
+
+			// keep track of all used times
+
+			pipeline.usedTimes ++;
+			stageCompute.usedTimes ++;
+
+			//
+
+			data.version = computeNode.version;
+			data.pipeline = pipeline;
+
+		}
+
+		return data.pipeline;
+
+	}
+
+	getForRender( renderObject, promises = null ) {
+
+		const { backend } = this;
+
+		const data = this.get( renderObject );
+
+		if ( this._needsRenderUpdate( renderObject ) ) {
+
+			const previousPipeline = data.pipeline;
+
+			if ( previousPipeline ) {
+
+				previousPipeline.usedTimes --;
+				previousPipeline.vertexProgram.usedTimes --;
+				previousPipeline.fragmentProgram.usedTimes --;
+
+			}
+
+			// get shader
+
+			const nodeBuilderState = renderObject.getNodeBuilderState();
+
+			// programmable stages
+
+			let stageVertex = this.programs.vertex.get( nodeBuilderState.vertexShader );
+
+			if ( stageVertex === undefined ) {
+
+				if ( previousPipeline && previousPipeline.vertexProgram.usedTimes === 0 ) this._releaseProgram( previousPipeline.vertexProgram );
+
+				stageVertex = new ProgrammableStage( nodeBuilderState.vertexShader, 'vertex' );
+				this.programs.vertex.set( nodeBuilderState.vertexShader, stageVertex );
+
+				backend.createProgram( stageVertex );
+
+			}
+
+			let stageFragment = this.programs.fragment.get( nodeBuilderState.fragmentShader );
+
+			if ( stageFragment === undefined ) {
+
+				if ( previousPipeline && previousPipeline.fragmentProgram.usedTimes === 0 ) this._releaseProgram( previousPipeline.fragmentProgram );
+
+				stageFragment = new ProgrammableStage( nodeBuilderState.fragmentShader, 'fragment' );
+				this.programs.fragment.set( nodeBuilderState.fragmentShader, stageFragment );
+
+				backend.createProgram( stageFragment );
+
+			}
+
+			// determine render pipeline
+
+			const cacheKey = this._getRenderCacheKey( renderObject, stageVertex, stageFragment );
+
+			let pipeline = this.caches.get( cacheKey );
+
+			if ( pipeline === undefined ) {
+
+				if ( previousPipeline && previousPipeline.usedTimes === 0 ) this._releasePipeline( previousPipeline );
+
+				pipeline = this._getRenderPipeline( renderObject, stageVertex, stageFragment, cacheKey, promises );
+
+			} else {
+
+				renderObject.pipeline = pipeline;
+
+			}
+
+			// keep track of all used times
+
+			pipeline.usedTimes ++;
+			stageVertex.usedTimes ++;
+			stageFragment.usedTimes ++;
+
+			//
+
+			data.pipeline = pipeline;
+
+		}
+
+		return data.pipeline;
+
+	}
+
+	delete( object ) {
+
+		const pipeline = this.get( object ).pipeline;
+
+		if ( pipeline ) {
+
+			// pipeline
+
+			pipeline.usedTimes --;
+
+			if ( pipeline.usedTimes === 0 ) this._releasePipeline( pipeline );
+
+			// programs
+
+			if ( pipeline.isComputePipeline ) {
+
+				pipeline.computeProgram.usedTimes --;
+
+				if ( pipeline.computeProgram.usedTimes === 0 ) this._releaseProgram( pipeline.computeProgram );
+
+			} else {
+
+				pipeline.fragmentProgram.usedTimes --;
+				pipeline.vertexProgram.usedTimes --;
+
+				if ( pipeline.vertexProgram.usedTimes === 0 ) this._releaseProgram( pipeline.vertexProgram );
+				if ( pipeline.fragmentProgram.usedTimes === 0 ) this._releaseProgram( pipeline.fragmentProgram );
+
+			}
+
+		}
+
+		super.delete( object );
+
+	}
+
+	dispose() {
+
+		super.dispose();
+
+		this.caches = new Map();
+		this.programs = {
+			vertex: new Map(),
+			fragment: new Map(),
+			compute: new Map()
+		};
+
+	}
+
+	updateForRender( renderObject ) {
+
+		this.getForRender( renderObject );
+
+	}
+
+	_getComputePipeline( computeNode, stageCompute, cacheKey, bindings ) {
+
+		// check for existing pipeline
+
+		cacheKey = cacheKey || this._getComputeCacheKey( computeNode, stageCompute );
+
+		let pipeline = this.caches.get( cacheKey );
+
+		if ( pipeline === undefined ) {
+
+			pipeline = new ComputePipeline( cacheKey, stageCompute );
+
+			this.caches.set( cacheKey, pipeline );
+
+			this.backend.createComputePipeline( pipeline, bindings );
+
+		}
+
+		return pipeline;
+
+	}
+
+	_getRenderPipeline( renderObject, stageVertex, stageFragment, cacheKey, promises ) {
+
+		// check for existing pipeline
+
+		cacheKey = cacheKey || this._getRenderCacheKey( renderObject, stageVertex, stageFragment );
+
+		let pipeline = this.caches.get( cacheKey );
+
+		if ( pipeline === undefined ) {
+
+			pipeline = new RenderPipeline( cacheKey, stageVertex, stageFragment );
+
+			this.caches.set( cacheKey, pipeline );
+
+			renderObject.pipeline = pipeline;
+
+			this.backend.createRenderPipeline( renderObject, promises );
+
+		}
+
+		return pipeline;
+
+	}
+
+	_getComputeCacheKey( computeNode, stageCompute ) {
+
+		return computeNode.id + ',' + stageCompute.id;
+
+	}
+
+	_getRenderCacheKey( renderObject, stageVertex, stageFragment ) {
+
+		return stageVertex.id + ',' + stageFragment.id + ',' + this.backend.getRenderCacheKey( renderObject );
+
+	}
+
+	_releasePipeline( pipeline ) {
+
+		this.caches.delete( pipeline.cacheKey );
+
+	}
+
+	_releaseProgram( program ) {
+
+		const code = program.code;
+		const stage = program.stage;
+
+		this.programs[ stage ].delete( code );
+
+	}
+
+	_needsComputeUpdate( computeNode ) {
+
+		const data = this.get( computeNode );
+
+		return data.pipeline === undefined || data.version !== computeNode.version;
+
+	}
+
+	_needsRenderUpdate( renderObject ) {
+
+		const data = this.get( renderObject );
+
+		return data.pipeline === undefined || this.backend.needsRenderUpdate( renderObject );
+
+	}
+
+}
+
+export default Pipelines;

public/sdk/three/jsm/renderers/common/PostProcessing.js

@@ -0,0 +1,33 @@
+import { vec4, NodeMaterial } from '../../nodes/Nodes.js';
+import QuadMesh from '../../objects/QuadMesh.js';
+
+const quadMesh = new QuadMesh( new NodeMaterial() );
+
+class PostProcessing {
+
+	constructor( renderer, outputNode = vec4( 0, 0, 1, 1 ) ) {
+
+		this.renderer = renderer;
+		this.outputNode = outputNode;
+
+	}
+
+	render() {
+
+		quadMesh.material.fragmentNode = this.outputNode;
+
+		quadMesh.render( this.renderer );
+
+	}
+
+	renderAsync() {
+
+		quadMesh.material.fragmentNode = this.outputNode;
+
+		return quadMesh.renderAsync( this.renderer );
+
+	}
+
+}
+
+export default PostProcessing;

public/sdk/three/jsm/renderers/common/ProgrammableStage.js

@@ -0,0 +1,20 @@
+let _id = 0;
+
+class ProgrammableStage {
+
+	constructor( code, type, transforms = null, attributes = null ) {
+
+		this.id = _id ++;
+
+		this.code = code;
+		this.stage = type;
+		this.transforms = transforms;
+		this.attributes = attributes;
+
+		this.usedTimes = 0;
+
+	}
+
+}
+
+export default ProgrammableStage;

public/sdk/three/jsm/renderers/common/RenderContext.js

@@ -0,0 +1,43 @@
+import { Vector4 } from 'three';
+
+let id = 0;
+
+class RenderContext {
+
+	constructor() {
+
+		this.id = id ++;
+
+		this.color = true;
+		this.clearColor = true;
+		this.clearColorValue = { r: 0, g: 0, b: 0, a: 1 };
+
+		this.depth = true;
+		this.clearDepth = true;
+		this.clearDepthValue = 1;
+
+		this.stencil = false;
+		this.clearStencil = true;
+		this.clearStencilValue = 1;
+
+		this.viewport = false;
+		this.viewportValue = new Vector4();
+
+		this.scissor = false;
+		this.scissorValue = new Vector4();
+
+		this.textures = null;
+		this.depthTexture = null;
+		this.activeCubeFace = 0;
+		this.sampleCount = 1;
+
+		this.width = 0;
+		this.height = 0;
+
+		this.isRenderContext = true;
+
+	}
+
+}
+
+export default RenderContext;

public/sdk/three/jsm/renderers/common/RenderContexts.js

@@ -0,0 +1,63 @@
+import ChainMap from './ChainMap.js';
+import RenderContext from './RenderContext.js';
+
+class RenderContexts {
+
+	constructor() {
+
+		this.chainMaps = {};
+
+	}
+
+	get( scene, camera, renderTarget = null ) {
+
+		const chainKey = [ scene, camera ];
+
+		let attachmentState;
+
+		if ( renderTarget === null ) {
+
+			attachmentState = 'default';
+
+		} else {
+
+			const format = renderTarget.texture.format;
+			const count = renderTarget.count;
+
+			attachmentState = `${ count }:${ format }:${ renderTarget.samples }:${ renderTarget.depthBuffer }:${ renderTarget.stencilBuffer }`;
+
+		}
+
+		const chainMap = this.getChainMap( attachmentState );
+
+		let renderState = chainMap.get( chainKey );
+
+		if ( renderState === undefined ) {
+
+			renderState = new RenderContext();
+
+			chainMap.set( chainKey, renderState );
+
+		}
+
+		if ( renderTarget !== null ) renderState.sampleCount = renderTarget.samples === 0 ? 1 : renderTarget.samples;
+
+		return renderState;
+
+	}
+
+	getChainMap( attachmentState ) {
+
+		return this.chainMaps[ attachmentState ] || ( this.chainMaps[ attachmentState ] = new ChainMap() );
+
+	}
+
+	dispose() {
+
+		this.chainMaps = {};
+
+	}
+
+}
+
+export default RenderContexts;

public/sdk/three/jsm/renderers/common/RenderList.js

@@ -0,0 +1,186 @@
+import { LightsNode } from '../../nodes/Nodes.js';
+
+function painterSortStable( a, b ) {
+
+	if ( a.groupOrder !== b.groupOrder ) {
+
+		return a.groupOrder - b.groupOrder;
+
+	} else if ( a.renderOrder !== b.renderOrder ) {
+
+		return a.renderOrder - b.renderOrder;
+
+	} else if ( a.material.id !== b.material.id ) {
+
+		return a.material.id - b.material.id;
+
+	} else if ( a.z !== b.z ) {
+
+		return a.z - b.z;
+
+	} else {
+
+		return a.id - b.id;
+
+	}
+
+}
+
+function reversePainterSortStable( a, b ) {
+
+	if ( a.groupOrder !== b.groupOrder ) {
+
+		return a.groupOrder - b.groupOrder;
+
+	} else if ( a.renderOrder !== b.renderOrder ) {
+
+		return a.renderOrder - b.renderOrder;
+
+	} else if ( a.z !== b.z ) {
+
+		return b.z - a.z;
+
+	} else {
+
+		return a.id - b.id;
+
+	}
+
+}
+
+class RenderList {
+
+	constructor() {
+
+		this.renderItems = [];
+		this.renderItemsIndex = 0;
+
+		this.opaque = [];
+		this.transparent = [];
+
+		this.lightsNode = new LightsNode( [] );
+		this.lightsArray = [];
+
+		this.occlusionQueryCount = 0;
+
+	}
+
+	begin() {
+
+		this.renderItemsIndex = 0;
+
+		this.opaque.length = 0;
+		this.transparent.length = 0;
+		this.lightsArray.length = 0;
+
+		this.occlusionQueryCount = 0;
+
+		return this;
+
+	}
+
+	getNextRenderItem( object, geometry, material, groupOrder, z, group ) {
+
+		let renderItem = this.renderItems[ this.renderItemsIndex ];
+
+		if ( renderItem === undefined ) {
+
+			renderItem = {
+				id: object.id,
+				object: object,
+				geometry: geometry,
+				material: material,
+				groupOrder: groupOrder,
+				renderOrder: object.renderOrder,
+				z: z,
+				group: group
+			};
+
+			this.renderItems[ this.renderItemsIndex ] = renderItem;
+
+		} else {
+
+			renderItem.id = object.id;
+			renderItem.object = object;
+			renderItem.geometry = geometry;
+			renderItem.material = material;
+			renderItem.groupOrder = groupOrder;
+			renderItem.renderOrder = object.renderOrder;
+			renderItem.z = z;
+			renderItem.group = group;
+
+		}
+
+		this.renderItemsIndex ++;
+
+		return renderItem;
+
+	}
+
+	push( object, geometry, material, groupOrder, z, group ) {
+
+		const renderItem = this.getNextRenderItem( object, geometry, material, groupOrder, z, group );
+
+		if ( object.occlusionTest === true ) this.occlusionQueryCount ++;
+
+		( material.transparent === true || material.transmission > 0 ? this.transparent : this.opaque ).push( renderItem );
+
+	}
+
+	unshift( object, geometry, material, groupOrder, z, group ) {
+
+		const renderItem = this.getNextRenderItem( object, geometry, material, groupOrder, z, group );
+
+		( material.transparent === true ? this.transparent : this.opaque ).unshift( renderItem );
+
+	}
+
+	pushLight( light ) {
+
+		this.lightsArray.push( light );
+
+	}
+
+	getLightsNode() {
+
+		return this.lightsNode.fromLights( this.lightsArray );
+
+	}
+
+	sort( customOpaqueSort, customTransparentSort ) {
+
+		if ( this.opaque.length > 1 ) this.opaque.sort( customOpaqueSort || painterSortStable );
+		if ( this.transparent.length > 1 ) this.transparent.sort( customTransparentSort || reversePainterSortStable );
+
+	}
+
+	finish() {
+
+		// update lights
+
+		this.lightsNode.fromLights( this.lightsArray );
+
+		// Clear references from inactive renderItems in the list
+
+		for ( let i = this.renderItemsIndex, il = this.renderItems.length; i < il; i ++ ) {
+
+			const renderItem = this.renderItems[ i ];
+
+			if ( renderItem.id === null ) break;
+
+			renderItem.id = null;
+			renderItem.object = null;
+			renderItem.geometry = null;
+			renderItem.material = null;
+			renderItem.groupOrder = null;
+			renderItem.renderOrder = null;
+			renderItem.z = null;
+			renderItem.group = null;
+
+		}
+
+	}
+
+}
+
+export default RenderList;

public/sdk/three/jsm/renderers/common/RenderLists.js

@@ -0,0 +1,38 @@
+import ChainMap from './ChainMap.js';
+import RenderList from './RenderList.js';
+
+class RenderLists {
+
+	constructor() {
+
+		this.lists = new ChainMap();
+
+	}
+
+	get( scene, camera ) {
+
+		const lists = this.lists;
+		const keys = [ scene, camera ];
+
+		let list = lists.get( keys );
+
+		if ( list === undefined ) {
+
+			list = new RenderList();
+			lists.set( keys, list );
+
+		}
+
+		return list;
+
+	}
+
+	dispose() {
+
+		this.lists = new ChainMap();
+
+	}
+
+}
+
+export default RenderLists;

public/sdk/three/jsm/renderers/common/RenderObject.js

@@ -0,0 +1,263 @@
+import ClippingContext from './ClippingContext.js';
+
+let id = 0;
+
+function getKeys( obj ) {
+
+	const keys = Object.keys( obj );
+
+	let proto = Object.getPrototypeOf( obj );
+
+	while ( proto ) {
+
+		const descriptors = Object.getOwnPropertyDescriptors( proto );
+
+		for ( const key in descriptors ) {
+
+			if ( descriptors[ key ] !== undefined ) {
+
+				const descriptor = descriptors[ key ];
+
+				if ( descriptor && typeof descriptor.get === 'function' ) {
+
+					keys.push( key );
+
+				}
+
+			}
+
+		}
+
+		proto = Object.getPrototypeOf( proto );
+
+	}
+
+	return keys;
+
+}
+
+export default class RenderObject {
+
+	constructor( nodes, geometries, renderer, object, material, scene, camera, lightsNode, renderContext ) {
+
+		this._nodes = nodes;
+		this._geometries = geometries;
+
+		this.id = id ++;
+
+		this.renderer = renderer;
+		this.object = object;
+		this.material = material;
+		this.scene = scene;
+		this.camera = camera;
+		this.lightsNode = lightsNode;
+		this.context = renderContext;
+
+		this.geometry = object.geometry;
+		this.version = material.version;
+
+		this.drawRange = null;
+
+		this.attributes = null;
+		this.pipeline = null;
+		this.vertexBuffers = null;
+
+		this.updateClipping( renderContext.clippingContext );
+
+		this.clippingContextVersion = this.clippingContext.version;
+
+		this.initialNodesCacheKey = this.getNodesCacheKey();
+		this.initialCacheKey = this.getCacheKey();
+
+		this._nodeBuilderState = null;
+		this._bindings = null;
+
+		this.onDispose = null;
+
+		this.isRenderObject = true;
+
+		this.onMaterialDispose = () => {
+
+			this.dispose();
+
+		};
+
+		this.material.addEventListener( 'dispose', this.onMaterialDispose );
+
+	}
+
+	updateClipping( parent ) {
+
+		const material = this.material;
+
+		let clippingContext = this.clippingContext;
+
+		if ( Array.isArray( material.clippingPlanes ) ) {
+
+			if ( clippingContext === parent || ! clippingContext ) {
+
+				clippingContext = new ClippingContext();
+				this.clippingContext = clippingContext;
+
+			}
+
+			clippingContext.update( parent, material );
+
+		} else if ( this.clippingContext !== parent ) {
+
+			this.clippingContext = parent;
+
+		}
+
+	}
+
+	get clippingNeedsUpdate() {
+
+		if ( this.clippingContext.version === this.clippingContextVersion ) return false;
+
+		this.clippingContextVersion = this.clippingContext.version;
+
+		return true;
+
+	}
+
+	getNodeBuilderState() {
+
+		return this._nodeBuilderState || ( this._nodeBuilderState = this._nodes.getForRender( this ) );
+
+	}
+
+	getBindings() {
+
+		return this._bindings || ( this._bindings = this.getNodeBuilderState().createBindings() );
+
+	}
+
+	getIndex() {
+
+		return this._geometries.getIndex( this );
+
+	}
+
+	getChainArray() {
+
+		return [ this.object, this.material, this.context, this.lightsNode ];
+
+	}
+
+	getAttributes() {
+
+		if ( this.attributes !== null ) return this.attributes;
+
+		const nodeAttributes = this.getNodeBuilderState().nodeAttributes;
+		const geometry = this.geometry;
+
+		const attributes = [];
+		const vertexBuffers = new Set();
+
+		for ( const nodeAttribute of nodeAttributes ) {
+
+			const attribute = nodeAttribute.node && nodeAttribute.node.attribute ? nodeAttribute.node.attribute : geometry.getAttribute( nodeAttribute.name );
+
+			if ( attribute === undefined ) continue;
+
+			attributes.push( attribute );
+
+			const bufferAttribute = attribute.isInterleavedBufferAttribute ? attribute.data : attribute;
+			vertexBuffers.add( bufferAttribute );
+
+		}
+
+		this.attributes = attributes;
+		this.vertexBuffers = Array.from( vertexBuffers.values() );
+
+		return attributes;
+
+	}
+
+	getVertexBuffers() {
+
+		if ( this.vertexBuffers === null ) this.getAttributes();
+
+		return this.vertexBuffers;
+
+	}
+
+	getMaterialCacheKey() {
+
+		const { object, material } = this;
+
+		let cacheKey = material.customProgramCacheKey();
+
+		for ( const property of getKeys( material ) ) {
+
+			if ( /^(is[A-Z]|_)|^(visible|version|uuid|name|opacity|userData)$/.test( property ) ) continue;
+
+			let value = material[ property ];
+
+			if ( value !== null ) {
+
+				const type = typeof value;
+
+				if ( type === 'number' ) value = value !== 0 ? '1' : '0'; // Convert to on/off, important for clearcoat, transmission, etc
+				else if ( type === 'object' ) value = '{}';
+
+			}
+
+			cacheKey += /*property + ':' +*/ value + ',';
+
+		}
+
+		cacheKey += this.clippingContextVersion + ',';
+
+		if ( object.skeleton ) {
+
+			cacheKey += object.skeleton.bones.length + ',';
+
+		}
+
+		if ( object.morphTargetInfluences ) {
+
+			cacheKey += object.morphTargetInfluences.length + ',';
+
+		}
+
+		if ( object.isBatchedMesh ) {
+
+			cacheKey += object._matricesTexture.uuid + ',';
+
+		}
+
+		return cacheKey;
+
+	}
+
+	get needsUpdate() {
+
+		return this.initialNodesCacheKey !== this.getNodesCacheKey() || this.clippingNeedsUpdate;
+
+	}
+
+	getNodesCacheKey() {
+
+		// Environment Nodes Cache Key
+
+		return this._nodes.getCacheKey( this.scene, this.lightsNode );
+
+	}
+
+	getCacheKey() {
+
+		return this.getMaterialCacheKey() + ',' + this.getNodesCacheKey();
+
+	}
+
+	dispose() {
+
+		this.material.removeEventListener( 'dispose', this.onMaterialDispose );
+
+		this.onDispose();
+
+	}
+
+}

public/sdk/three/jsm/renderers/common/RenderObjects.js

@@ -0,0 +1,93 @@
+import ChainMap from './ChainMap.js';
+import RenderObject from './RenderObject.js';
+
+class RenderObjects {
+
+	constructor( renderer, nodes, geometries, pipelines, bindings, info ) {
+
+		this.renderer = renderer;
+		this.nodes = nodes;
+		this.geometries = geometries;
+		this.pipelines = pipelines;
+		this.bindings = bindings;
+		this.info = info;
+
+		this.chainMaps = {};
+
+	}
+
+	get( object, material, scene, camera, lightsNode, renderContext, passId ) {
+
+		const chainMap = this.getChainMap( passId );
+		const chainArray = [ object, material, renderContext, lightsNode ];
+
+		let renderObject = chainMap.get( chainArray );
+
+		if ( renderObject === undefined ) {
+
+			renderObject = this.createRenderObject( this.nodes, this.geometries, this.renderer, object, material, scene, camera, lightsNode, renderContext, passId );
+
+			chainMap.set( chainArray, renderObject );
+
+		} else {
+
+			renderObject.updateClipping( renderContext.clippingContext );
+
+			if ( renderObject.version !== material.version || renderObject.needsUpdate ) {
+
+				if ( renderObject.initialCacheKey !== renderObject.getCacheKey() ) {
+
+					renderObject.dispose();
+
+					renderObject = this.get( object, material, scene, camera, lightsNode, renderContext, passId );
+
+				} else {
+
+					renderObject.version = material.version;
+
+				}
+
+			}
+
+		}
+
+		return renderObject;
+
+	}
+
+	getChainMap( passId = 'default' ) {
+
+		return this.chainMaps[ passId ] || ( this.chainMaps[ passId ] = new ChainMap() );
+
+	}
+
+	dispose() {
+
+		this.chainMaps = {};
+
+	}
+
+	createRenderObject( nodes, geometries, renderer, object, material, scene, camera, lightsNode, renderContext, passId ) {
+
+		const chainMap = this.getChainMap( passId );
+
+		const renderObject = new RenderObject( nodes, geometries, renderer, object, material, scene, camera, lightsNode, renderContext );
+
+		renderObject.onDispose = () => {
+
+			this.pipelines.delete( renderObject );
+			this.bindings.delete( renderObject );
+			this.nodes.delete( renderObject );
+
+			chainMap.delete( renderObject.getChainArray() );
+
+		};
+
+		return renderObject;
+
+	}
+
+
+}
+
+export default RenderObjects;

public/sdk/three/jsm/renderers/common/RenderPipeline.js

@@ -0,0 +1,16 @@
+import Pipeline from './Pipeline.js';
+
+class RenderPipeline extends Pipeline {
+
+	constructor( cacheKey, vertexProgram, fragmentProgram ) {
+
+		super( cacheKey );
+
+		this.vertexProgram = vertexProgram;
+		this.fragmentProgram = fragmentProgram;
+
+	}
+
+}
+
+export default RenderPipeline;

public/sdk/three/jsm/renderers/common/SampledTexture.js

@@ -0,0 +1,83 @@
+import Binding from './Binding.js';
+
+let id = 0;
+
+class SampledTexture extends Binding {
+
+	constructor( name, texture ) {
+
+		super( name );
+
+		this.id = id ++;
+
+		this.texture = texture;
+		this.version = texture ? texture.version : 0;
+		this.store = false;
+
+		this.isSampledTexture = true;
+
+	}
+
+	get needsBindingsUpdate() {
+
+		const { texture, version } = this;
+
+		return texture.isVideoTexture ? true : version !== texture.version; // @TODO: version === 0 && texture.version > 0 ( add it just to External Textures like PNG,JPG )
+
+	}
+
+	update() {
+
+		const { texture, version } = this;
+
+		if ( version !== texture.version ) {
+
+			this.version = texture.version;
+
+			return true;
+
+		}
+
+		return false;
+
+	}
+
+}
+
+class SampledArrayTexture extends SampledTexture {
+
+	constructor( name, texture ) {
+
+		super( name, texture );
+
+		this.isSampledArrayTexture = true;
+
+	}
+
+}
+
+class Sampled3DTexture extends SampledTexture {
+
+	constructor( name, texture ) {
+
+		super( name, texture );
+
+		this.isSampled3DTexture = true;
+
+	}
+
+}
+
+class SampledCubeTexture extends SampledTexture {
+
+	constructor( name, texture ) {
+
+		super( name, texture );
+
+		this.isSampledCubeTexture = true;
+
+	}
+
+}
+
+export { SampledTexture, SampledArrayTexture, Sampled3DTexture, SampledCubeTexture };

public/sdk/three/jsm/renderers/common/Sampler.js

@@ -0,0 +1,18 @@
+import Binding from './Binding.js';
+
+class Sampler extends Binding {
+
+	constructor( name, texture ) {
+
+		super( name );
+
+		this.texture = texture;
+		this.version = texture ? texture.version : 0;
+
+		this.isSampler = true;
+
+	}
+
+}
+
+export default Sampler;

public/sdk/three/jsm/renderers/common/StorageBuffer.js

@@ -0,0 +1,17 @@
+import Buffer from './Buffer.js';
+
+class StorageBuffer extends Buffer {
+
+	constructor( name, attribute ) {
+
+		super( name, attribute ? attribute.array : null );
+
+		this.attribute = attribute;
+
+		this.isStorageBuffer = true;
+
+	}
+
+}
+
+export default StorageBuffer;

public/sdk/three/jsm/renderers/common/StorageBufferAttribute.js

@@ -0,0 +1,17 @@
+import { BufferAttribute } from 'three';
+
+class StorageBufferAttribute extends BufferAttribute {
+
+	constructor( array, itemSize, typeClass = Float32Array ) {
+
+		if ( ArrayBuffer.isView( array ) === false ) array = new typeClass( array * itemSize );
+
+		super( array, itemSize );
+
+		this.isStorageBufferAttribute = true;
+
+	}
+
+}
+
+export default StorageBufferAttribute;

public/sdk/three/jsm/renderers/common/StorageInstancedBufferAttribute.js

@@ -0,0 +1,17 @@
+import { InstancedBufferAttribute } from 'three';
+
+class StorageInstancedBufferAttribute extends InstancedBufferAttribute {
+
+	constructor( array, itemSize, typeClass = Float32Array ) {
+
+		if ( ArrayBuffer.isView( array ) === false ) array = new typeClass( array * itemSize );
+
+		super( array, itemSize );
+
+		this.isStorageInstancedBufferAttribute = true;
+
+	}
+
+}
+
+export default StorageInstancedBufferAttribute;

public/sdk/three/jsm/renderers/common/StorageTexture.js

@@ -0,0 +1,20 @@
+import { Texture, LinearFilter } from 'three';
+
+class StorageTexture extends Texture {
+
+	constructor( width = 1, height = 1 ) {
+
+		super();
+
+		this.image = { width, height };
+
+		this.magFilter = LinearFilter;
+		this.minFilter = LinearFilter;
+
+		this.isStorageTexture = true;
+
+	}
+
+}
+
+export default StorageTexture;

public/sdk/three/jsm/renderers/common/Textures.js

@@ -0,0 +1,344 @@
+import DataMap from './DataMap.js';
+
+import { Vector3, DepthTexture, DepthStencilFormat, DepthFormat, UnsignedIntType, UnsignedInt248Type, LinearFilter, NearestFilter, EquirectangularReflectionMapping, EquirectangularRefractionMapping, CubeReflectionMapping, CubeRefractionMapping, UnsignedByteType } from 'three';
+
+const _size = new Vector3();
+
+class Textures extends DataMap {
+
+	constructor( renderer, backend, info ) {
+
+		super();
+
+		this.renderer = renderer;
+		this.backend = backend;
+		this.info = info;
+
+	}
+
+	updateRenderTarget( renderTarget, activeMipmapLevel = 0 ) {
+
+		const renderTargetData = this.get( renderTarget );
+
+		const sampleCount = renderTarget.samples === 0 ? 1 : renderTarget.samples;
+		const depthTextureMips = renderTargetData.depthTextureMips || ( renderTargetData.depthTextureMips = {} );
+
+		const texture = renderTarget.texture;
+		const textures = renderTarget.textures;
+
+		const size = this.getSize( texture );
+
+		const mipWidth = size.width >> activeMipmapLevel;
+		const mipHeight = size.height >> activeMipmapLevel;
+
+		let depthTexture = renderTarget.depthTexture || depthTextureMips[ activeMipmapLevel ];
+		let textureNeedsUpdate = false;
+
+		if ( depthTexture === undefined ) {
+
+			depthTexture = new DepthTexture();
+			depthTexture.format = renderTarget.stencilBuffer ? DepthStencilFormat : DepthFormat;
+			depthTexture.type = renderTarget.stencilBuffer ? UnsignedInt248Type : UnsignedIntType; // FloatType
+			depthTexture.image.width = mipWidth;
+			depthTexture.image.height = mipHeight;
+
+			depthTextureMips[ activeMipmapLevel ] = depthTexture;
+
+		}
+
+		if ( renderTargetData.width !== size.width || size.height !== renderTargetData.height ) {
+
+			textureNeedsUpdate = true;
+			depthTexture.needsUpdate = true;
+
+			depthTexture.image.width = mipWidth;
+			depthTexture.image.height = mipHeight;
+
+		}
+
+		renderTargetData.width = size.width;
+		renderTargetData.height = size.height;
+		renderTargetData.textures = textures;
+		renderTargetData.depthTexture = depthTexture;
+		renderTargetData.depth = renderTarget.depthBuffer;
+		renderTargetData.stencil = renderTarget.stencilBuffer;
+		renderTargetData.renderTarget = renderTarget;
+
+		if ( renderTargetData.sampleCount !== sampleCount ) {
+
+			textureNeedsUpdate = true;
+			depthTexture.needsUpdate = true;
+
+			renderTargetData.sampleCount = sampleCount;
+
+		}
+
+		//
+
+		const options = { sampleCount };
+
+		for ( let i = 0; i < textures.length; i ++ ) {
+
+			const texture = textures[ i ];
+
+			if ( textureNeedsUpdate ) texture.needsUpdate = true;
+
+			this.updateTexture( texture, options );
+
+		}
+
+		this.updateTexture( depthTexture, options );
+
+		// dispose handler
+
+		if ( renderTargetData.initialized !== true ) {
+
+			renderTargetData.initialized = true;
+
+			// dispose
+
+			const onDispose = () => {
+
+				renderTarget.removeEventListener( 'dispose', onDispose );
+
+				if ( textures !== undefined ) {
+
+					for ( let i = 0; i < textures.length; i ++ ) {
+
+						this._destroyTexture( textures[ i ] );
+
+					}
+
+				} else {
+
+					this._destroyTexture( texture );
+
+				}
+
+				this._destroyTexture( depthTexture );
+
+			};
+
+			renderTarget.addEventListener( 'dispose', onDispose );
+
+		}
+
+	}
+
+	updateTexture( texture, options = {} ) {
+
+		const textureData = this.get( texture );
+		if ( textureData.initialized === true && textureData.version === texture.version ) return;
+
+		const isRenderTarget = texture.isRenderTargetTexture || texture.isDepthTexture || texture.isFramebufferTexture;
+		const backend = this.backend;
+
+		if ( isRenderTarget && textureData.initialized === true ) {
+
+			// it's an update
+
+			backend.destroySampler( texture );
+			backend.destroyTexture( texture );
+
+		}
+
+		//
+
+		if ( texture.isFramebufferTexture ) {
+
+			const renderer = this.renderer;
+			const renderTarget = renderer.getRenderTarget();
+
+			if ( renderTarget ) {
+
+				texture.type = renderTarget.texture.type;
+
+			} else {
+
+				texture.type = UnsignedByteType;
+
+			}
+
+		}
+
+		//
+
+		const { width, height, depth } = this.getSize( texture );
+
+		options.width = width;
+		options.height = height;
+		options.depth = depth;
+		options.needsMipmaps = this.needsMipmaps( texture );
+		options.levels = options.needsMipmaps ? this.getMipLevels( texture, width, height ) : 1;
+
+		//
+
+		if ( isRenderTarget || texture.isStorageTexture === true ) {
+
+			backend.createSampler( texture );
+			backend.createTexture( texture, options );
+
+		} else {
+
+			const needsCreate = textureData.initialized !== true;
+
+			if ( needsCreate ) backend.createSampler( texture );
+
+			if ( texture.version > 0 ) {
+
+				const image = texture.image;
+
+				if ( image === undefined ) {
+
+					console.warn( 'THREE.Renderer: Texture marked for update but image is undefined.' );
+
+				} else if ( image.complete === false ) {
+
+					console.warn( 'THREE.Renderer: Texture marked for update but image is incomplete.' );
+
+				} else {
+
+					if ( texture.images ) {
+
+						const images = [];
+
+						for ( const image of texture.images ) {
+
+							images.push( image );
+
+						}
+
+						options.images = images;
+
+					} else {
+
+						options.image = image;
+
+					}
+
+					if ( textureData.isDefaultTexture === undefined || textureData.isDefaultTexture === true ) {
+
+						backend.createTexture( texture, options );
+
+						textureData.isDefaultTexture = false;
+
+					}
+
+					if ( texture.source.dataReady === true ) backend.updateTexture( texture, options );
+
+					if ( options.needsMipmaps && texture.mipmaps.length === 0 ) backend.generateMipmaps( texture );
+
+				}
+
+			} else {
+
+				// async update
+
+				backend.createDefaultTexture( texture );
+
+				textureData.isDefaultTexture = true;
+
+			}
+
+		}
+
+		// dispose handler
+
+		if ( textureData.initialized !== true ) {
+
+			textureData.initialized = true;
+
+			//
+
+			this.info.memory.textures ++;
+
+			// dispose
+
+			const onDispose = () => {
+
+				texture.removeEventListener( 'dispose', onDispose );
+
+				this._destroyTexture( texture );
+
+				this.info.memory.textures --;
+
+			};
+
+			texture.addEventListener( 'dispose', onDispose );
+
+		}
+
+		//
+
+		textureData.version = texture.version;
+
+	}
+
+	getSize( texture, target = _size ) {
+
+		let image = texture.images ? texture.images[ 0 ] : texture.image;
+
+		if ( image ) {
+
+			if ( image.image !== undefined ) image = image.image;
+
+			target.width = image.width;
+			target.height = image.height;
+			target.depth = texture.isCubeTexture ? 6 : ( image.depth || 1 );
+
+		} else {
+
+			target.width = target.height = target.depth = 1;
+
+		}
+
+		return target;
+
+	}
+
+	getMipLevels( texture, width, height ) {
+
+		let mipLevelCount;
+
+		if ( texture.isCompressedTexture ) {
+
+			mipLevelCount = texture.mipmaps.length;
+
+		} else {
+
+			mipLevelCount = Math.floor( Math.log2( Math.max( width, height ) ) ) + 1;
+
+		}
+
+		return mipLevelCount;
+
+	}
+
+	needsMipmaps( texture ) {
+
+		if ( this.isEnvironmentTexture( texture ) ) return true;
+
+		return ( texture.isCompressedTexture === true ) || ( ( texture.minFilter !== NearestFilter ) && ( texture.minFilter !== LinearFilter ) );
+
+	}
+
+	isEnvironmentTexture( texture ) {
+
+		const mapping = texture.mapping;
+
+		return ( mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping ) || ( mapping === CubeReflectionMapping || mapping === CubeRefractionMapping );
+
+	}
+
+	_destroyTexture( texture ) {
+
+		this.backend.destroySampler( texture );
+		this.backend.destroyTexture( texture );
+
+		this.delete( texture );
+
+	}
+
+}
+
+export default Textures;

public/sdk/three/jsm/renderers/common/Uniform.js

@@ -0,0 +1,140 @@
+import { Color, Matrix3, Matrix4, Vector2, Vector3, Vector4 } from 'three';
+
+class Uniform {
+
+	constructor( name, value = null ) {
+
+		this.name = name;
+		this.value = value;
+
+		this.boundary = 0; // used to build the uniform buffer according to the STD140 layout
+		this.itemSize = 0;
+
+		this.offset = 0; // this property is set by WebGPUUniformsGroup and marks the start position in the uniform buffer
+
+	}
+
+	setValue( value ) {
+
+		this.value = value;
+
+	}
+
+	getValue() {
+
+		return this.value;
+
+	}
+
+}
+
+class FloatUniform extends Uniform {
+
+	constructor( name, value = 0 ) {
+
+		super( name, value );
+
+		this.isFloatUniform = true;
+
+		this.boundary = 4;
+		this.itemSize = 1;
+
+	}
+
+}
+
+class Vector2Uniform extends Uniform {
+
+	constructor( name, value = new Vector2() ) {
+
+		super( name, value );
+
+		this.isVector2Uniform = true;
+
+		this.boundary = 8;
+		this.itemSize = 2;
+
+	}
+
+}
+
+class Vector3Uniform extends Uniform {
+
+	constructor( name, value = new Vector3() ) {
+
+		super( name, value );
+
+		this.isVector3Uniform = true;
+
+		this.boundary = 16;
+		this.itemSize = 3;
+
+	}
+
+}
+
+class Vector4Uniform extends Uniform {
+
+	constructor( name, value = new Vector4() ) {
+
+		super( name, value );
+
+		this.isVector4Uniform = true;
+
+		this.boundary = 16;
+		this.itemSize = 4;
+
+	}
+
+}
+
+class ColorUniform extends Uniform {
+
+	constructor( name, value = new Color() ) {
+
+		super( name, value );
+
+		this.isColorUniform = true;
+
+		this.boundary = 16;
+		this.itemSize = 3;
+
+	}
+
+}
+
+class Matrix3Uniform extends Uniform {
+
+	constructor( name, value = new Matrix3() ) {
+
+		super( name, value );
+
+		this.isMatrix3Uniform = true;
+
+		this.boundary = 48;
+		this.itemSize = 12;
+
+	}
+
+}
+
+class Matrix4Uniform extends Uniform {
+
+	constructor( name, value = new Matrix4() ) {
+
+		super( name, value );
+
+		this.isMatrix4Uniform = true;
+
+		this.boundary = 64;
+		this.itemSize = 16;
+
+	}
+
+}
+
+export {
+	FloatUniform,
+	Vector2Uniform, Vector3Uniform, Vector4Uniform, ColorUniform,
+	Matrix3Uniform, Matrix4Uniform
+};

public/sdk/three/jsm/renderers/common/UniformBuffer.js

@@ -0,0 +1,15 @@
+import Buffer from './Buffer.js';
+
+class UniformBuffer extends Buffer {
+
+	constructor( name, buffer = null ) {
+
+		super( name, buffer );
+
+		this.isUniformBuffer = true;
+
+	}
+
+}
+
+export default UniformBuffer;

public/sdk/three/jsm/renderers/common/UniformsGroup.js

@@ -0,0 +1,301 @@
+import UniformBuffer from './UniformBuffer.js';
+import { GPU_CHUNK_BYTES } from './Constants.js';
+
+class UniformsGroup extends UniformBuffer {
+
+	constructor( name ) {
+
+		super( name );
+
+		this.isUniformsGroup = true;
+
+		// the order of uniforms in this array must match the order of uniforms in the shader
+
+		this.uniforms = [];
+
+	}
+
+	addUniform( uniform ) {
+
+		this.uniforms.push( uniform );
+
+		return this;
+
+	}
+
+	removeUniform( uniform ) {
+
+		const index = this.uniforms.indexOf( uniform );
+
+		if ( index !== - 1 ) {
+
+			this.uniforms.splice( index, 1 );
+
+		}
+
+		return this;
+
+	}
+
+	get buffer() {
+
+		let buffer = this._buffer;
+
+		if ( buffer === null ) {
+
+			const byteLength = this.byteLength;
+
+			buffer = new Float32Array( new ArrayBuffer( byteLength ) );
+
+			this._buffer = buffer;
+
+		}
+
+		return buffer;
+
+	}
+
+	get byteLength() {
+
+		let offset = 0; // global buffer offset in bytes
+
+		for ( let i = 0, l = this.uniforms.length; i < l; i ++ ) {
+
+			const uniform = this.uniforms[ i ];
+
+			const { boundary, itemSize } = uniform;
+
+			// offset within a single chunk in bytes
+
+			const chunkOffset = offset % GPU_CHUNK_BYTES;
+			const remainingSizeInChunk = GPU_CHUNK_BYTES - chunkOffset;
+
+			// conformance tests
+
+			if ( chunkOffset !== 0 && ( remainingSizeInChunk - boundary ) < 0 ) {
+
+				// check for chunk overflow
+
+				offset += ( GPU_CHUNK_BYTES - chunkOffset );
+
+			} else if ( chunkOffset % boundary !== 0 ) {
+
+				// check for correct alignment
+
+				offset += ( chunkOffset % boundary );
+
+			}
+
+			uniform.offset = ( offset / this.bytesPerElement );
+
+			offset += ( itemSize * this.bytesPerElement );
+
+		}
+
+		return Math.ceil( offset / GPU_CHUNK_BYTES ) * GPU_CHUNK_BYTES;
+
+	}
+
+	update() {
+
+		let updated = false;
+
+		for ( const uniform of this.uniforms ) {
+
+			if ( this.updateByType( uniform ) === true ) {
+
+				updated = true;
+
+			}
+
+		}
+
+		return updated;
+
+	}
+
+	updateByType( uniform ) {
+
+		if ( uniform.isFloatUniform ) return this.updateNumber( uniform );
+		if ( uniform.isVector2Uniform ) return this.updateVector2( uniform );
+		if ( uniform.isVector3Uniform ) return this.updateVector3( uniform );
+		if ( uniform.isVector4Uniform ) return this.updateVector4( uniform );
+		if ( uniform.isColorUniform ) return this.updateColor( uniform );
+		if ( uniform.isMatrix3Uniform ) return this.updateMatrix3( uniform );
+		if ( uniform.isMatrix4Uniform ) return this.updateMatrix4( uniform );
+
+		console.error( 'THREE.WebGPUUniformsGroup: Unsupported uniform type.', uniform );
+
+	}
+
+	updateNumber( uniform ) {
+
+		let updated = false;
+
+		const a = this.buffer;
+		const v = uniform.getValue();
+		const offset = uniform.offset;
+
+		if ( a[ offset ] !== v ) {
+
+			a[ offset ] = v;
+			updated = true;
+
+		}
+
+		return updated;
+
+	}
+
+	updateVector2( uniform ) {
+
+		let updated = false;
+
+		const a = this.buffer;
+		const v = uniform.getValue();
+		const offset = uniform.offset;
+
+		if ( a[ offset + 0 ] !== v.x || a[ offset + 1 ] !== v.y ) {
+
+			a[ offset + 0 ] = v.x;
+			a[ offset + 1 ] = v.y;
+
+			updated = true;
+
+		}
+
+		return updated;
+
+	}
+
+	updateVector3( uniform ) {
+
+		let updated = false;
+
+		const a = this.buffer;
+		const v = uniform.getValue();
+		const offset = uniform.offset;
+
+		if ( a[ offset + 0 ] !== v.x || a[ offset + 1 ] !== v.y || a[ offset + 2 ] !== v.z ) {
+
+			a[ offset + 0 ] = v.x;
+			a[ offset + 1 ] = v.y;
+			a[ offset + 2 ] = v.z;
+
+			updated = true;
+
+		}
+
+		return updated;
+
+	}
+
+	updateVector4( uniform ) {
+
+		let updated = false;
+
+		const a = this.buffer;
+		const v = uniform.getValue();
+		const offset = uniform.offset;
+
+		if ( a[ offset + 0 ] !== v.x || a[ offset + 1 ] !== v.y || a[ offset + 2 ] !== v.z || a[ offset + 4 ] !== v.w ) {
+
+			a[ offset + 0 ] = v.x;
+			a[ offset + 1 ] = v.y;
+			a[ offset + 2 ] = v.z;
+			a[ offset + 3 ] = v.w;
+
+			updated = true;
+
+		}
+
+		return updated;
+
+	}
+
+	updateColor( uniform ) {
+
+		let updated = false;
+
+		const a = this.buffer;
+		const c = uniform.getValue();
+		const offset = uniform.offset;
+
+		if ( a[ offset + 0 ] !== c.r || a[ offset + 1 ] !== c.g || a[ offset + 2 ] !== c.b ) {
+
+			a[ offset + 0 ] = c.r;
+			a[ offset + 1 ] = c.g;
+			a[ offset + 2 ] = c.b;
+
+			updated = true;
+
+		}
+
+		return updated;
+
+	}
+
+	updateMatrix3( uniform ) {
+
+		let updated = false;
+
+		const a = this.buffer;
+		const e = uniform.getValue().elements;
+		const offset = uniform.offset;
+
+		if ( a[ offset + 0 ] !== e[ 0 ] || a[ offset + 1 ] !== e[ 1 ] || a[ offset + 2 ] !== e[ 2 ] ||
+			a[ offset + 4 ] !== e[ 3 ] || a[ offset + 5 ] !== e[ 4 ] || a[ offset + 6 ] !== e[ 5 ] ||
+			a[ offset + 8 ] !== e[ 6 ] || a[ offset + 9 ] !== e[ 7 ] || a[ offset + 10 ] !== e[ 8 ] ) {
+
+			a[ offset + 0 ] = e[ 0 ];
+			a[ offset + 1 ] = e[ 1 ];
+			a[ offset + 2 ] = e[ 2 ];
+			a[ offset + 4 ] = e[ 3 ];
+			a[ offset + 5 ] = e[ 4 ];
+			a[ offset + 6 ] = e[ 5 ];
+			a[ offset + 8 ] = e[ 6 ];
+			a[ offset + 9 ] = e[ 7 ];
+			a[ offset + 10 ] = e[ 8 ];
+
+			updated = true;
+
+		}
+
+		return updated;
+
+	}
+
+	updateMatrix4( uniform ) {
+
+		let updated = false;
+
+		const a = this.buffer;
+		const e = uniform.getValue().elements;
+		const offset = uniform.offset;
+
+		if ( arraysEqual( a, e, offset ) === false ) {
+
+			a.set( e, offset );
+			updated = true;
+
+		}
+
+		return updated;
+
+	}
+
+}
+
+function arraysEqual( a, b, offset ) {
+
+	for ( let i = 0, l = b.length; i < l; i ++ ) {
+
+		if ( a[ offset + i ] !== b[ i ] ) return false;
+
+	}
+
+	return true;
+
+}
+
+export default UniformsGroup;

public/sdk/three/jsm/renderers/common/extras/PMREMGenerator.js

@@ -0,0 +1,773 @@
+import NodeMaterial from '../../../nodes/materials/NodeMaterial.js';
+import { getDirection, blur } from '../../../nodes/pmrem/PMREMUtils.js';
+import { equirectUV } from '../../../nodes/utils/EquirectUVNode.js';
+import { uniform } from '../../../nodes/core/UniformNode.js';
+import { uniforms } from '../../../nodes/accessors/UniformsNode.js';
+import { texture } from '../../../nodes/accessors/TextureNode.js';
+import { cubeTexture } from '../../../nodes/accessors/CubeTextureNode.js';
+import { float, vec3 } from '../../../nodes/shadernode/ShaderNode.js';
+import { uv } from '../../../nodes/accessors/UVNode.js';
+import { attribute } from '../../../nodes/core/AttributeNode.js';
+import {
+	OrthographicCamera,
+	Color,
+	Vector3,
+	BufferGeometry,
+	BufferAttribute,
+	RenderTarget,
+	Mesh,
+	CubeReflectionMapping,
+	CubeRefractionMapping,
+	CubeUVReflectionMapping,
+	LinearFilter,
+	NoBlending,
+	RGBAFormat,
+	HalfFloatType,
+	BackSide,
+	LinearSRGBColorSpace,
+	PerspectiveCamera,
+	MeshBasicMaterial,
+	BoxGeometry
+} from 'three';
+
+const LOD_MIN = 4;
+
+// The standard deviations (radians) associated with the extra mips. These are
+// chosen to approximate a Trowbridge-Reitz distribution function times the
+// geometric shadowing function. These sigma values squared must match the
+// variance #defines in cube_uv_reflection_fragment.glsl.js.
+const EXTRA_LOD_SIGMA = [ 0.125, 0.215, 0.35, 0.446, 0.526, 0.582 ];
+
+// The maximum length of the blur for loop. Smaller sigmas will use fewer
+// samples and exit early, but not recompile the shader.
+const MAX_SAMPLES = 20;
+
+const _flatCamera = /*@__PURE__*/ new OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );
+const _cubeCamera = /*@__PURE__*/ new PerspectiveCamera( 90, 1 );
+const _clearColor = /*@__PURE__*/ new Color();
+let _oldTarget = null;
+let _oldActiveCubeFace = 0;
+let _oldActiveMipmapLevel = 0;
+
+// Golden Ratio
+const PHI = ( 1 + Math.sqrt( 5 ) ) / 2;
+const INV_PHI = 1 / PHI;
+
+// Vertices of a dodecahedron (except the opposites, which represent the
+// same axis), used as axis directions evenly spread on a sphere.
+const _axisDirections = [
+	/*@__PURE__*/ new Vector3( - PHI, INV_PHI, 0 ),
+	/*@__PURE__*/ new Vector3( PHI, INV_PHI, 0 ),
+	/*@__PURE__*/ new Vector3( - INV_PHI, 0, PHI ),
+	/*@__PURE__*/ new Vector3( INV_PHI, 0, PHI ),
+	/*@__PURE__*/ new Vector3( 0, PHI, - INV_PHI ),
+	/*@__PURE__*/ new Vector3( 0, PHI, INV_PHI ),
+	/*@__PURE__*/ new Vector3( - 1, 1, - 1 ),
+	/*@__PURE__*/ new Vector3( 1, 1, - 1 ),
+	/*@__PURE__*/ new Vector3( - 1, 1, 1 ),
+	/*@__PURE__*/ new Vector3( 1, 1, 1 )
+];
+
+//
+
+// WebGPU Face indices
+const _faceLib = [
+	3, 1, 5,
+	0, 4, 2
+];
+
+const direction = getDirection( uv(), attribute( 'faceIndex' ) ).normalize();
+const outputDirection = vec3( direction.x, direction.y.negate(), direction.z );
+
+/**
+ * This class generates a Prefiltered, Mipmapped Radiance Environment Map
+ * (PMREM) from a cubeMap environment texture. This allows different levels of
+ * blur to be quickly accessed based on material roughness. It is packed into a
+ * special CubeUV format that allows us to perform custom interpolation so that
+ * we can support nonlinear formats such as RGBE. Unlike a traditional mipmap
+ * chain, it only goes down to the LOD_MIN level (above), and then creates extra
+ * even more filtered 'mips' at the same LOD_MIN resolution, associated with
+ * higher roughness levels. In this way we maintain resolution to smoothly
+ * interpolate diffuse lighting while limiting sampling computation.
+ *
+ * Paper: Fast, Accurate Image-Based Lighting
+ * https://drive.google.com/file/d/15y8r_UpKlU9SvV4ILb0C3qCPecS8pvLz/view
+*/
+
+class PMREMGenerator {
+
+	constructor( renderer ) {
+
+		this._renderer = renderer;
+		this._pingPongRenderTarget = null;
+
+		this._lodMax = 0;
+		this._cubeSize = 0;
+		this._lodPlanes = [];
+		this._sizeLods = [];
+		this._sigmas = [];
+		this._lodMeshes = [];
+
+		this._blurMaterial = null;
+		this._cubemapMaterial = null;
+		this._equirectMaterial = null;
+		this._backgroundBox = null;
+
+	}
+
+	/**
+	 * Generates a PMREM from a supplied Scene, which can be faster than using an
+	 * image if networking bandwidth is low. Optional sigma specifies a blur radius
+	 * in radians to be applied to the scene before PMREM generation. Optional near
+	 * and far planes ensure the scene is rendered in its entirety (the cubeCamera
+	 * is placed at the origin).
+	 */
+	fromScene( scene, sigma = 0, near = 0.1, far = 100 ) {
+
+		_oldTarget = this._renderer.getRenderTarget();
+		_oldActiveCubeFace = this._renderer.getActiveCubeFace();
+		_oldActiveMipmapLevel = this._renderer.getActiveMipmapLevel();
+
+		this._setSize( 256 );
+
+		const cubeUVRenderTarget = this._allocateTargets();
+		cubeUVRenderTarget.depthBuffer = true;
+
+		this._sceneToCubeUV( scene, near, far, cubeUVRenderTarget );
+
+		if ( sigma > 0 ) {
+
+			this._blur( cubeUVRenderTarget, 0, 0, sigma );
+
+		}
+
+		this._applyPMREM( cubeUVRenderTarget );
+
+		this._cleanup( cubeUVRenderTarget );
+
+		return cubeUVRenderTarget;
+
+	}
+
+	/**
+	 * Generates a PMREM from an equirectangular texture, which can be either LDR
+	 * or HDR. The ideal input image size is 1k (1024 x 512),
+	 * as this matches best with the 256 x 256 cubemap output.
+	 */
+	fromEquirectangular( equirectangular, renderTarget = null ) {
+
+		return this._fromTexture( equirectangular, renderTarget );
+
+	}
+
+	/**
+	 * Generates a PMREM from an cubemap texture, which can be either LDR
+	 * or HDR. The ideal input cube size is 256 x 256,
+	 * as this matches best with the 256 x 256 cubemap output.
+	 */
+	fromCubemap( cubemap, renderTarget = null ) {
+
+		return this._fromTexture( cubemap, renderTarget );
+
+	}
+
+	/**
+	 * Pre-compiles the cubemap shader. You can get faster start-up by invoking this method during
+	 * your texture's network fetch for increased concurrency.
+	 */
+	compileCubemapShader() {
+
+		if ( this._cubemapMaterial === null ) {
+
+			this._cubemapMaterial = _getCubemapMaterial();
+			this._compileMaterial( this._cubemapMaterial );
+
+		}
+
+	}
+
+	/**
+	 * Pre-compiles the equirectangular shader. You can get faster start-up by invoking this method during
+	 * your texture's network fetch for increased concurrency.
+	 */
+	compileEquirectangularShader() {
+
+		if ( this._equirectMaterial === null ) {
+
+			this._equirectMaterial = _getEquirectMaterial();
+			this._compileMaterial( this._equirectMaterial );
+
+		}
+
+	}
+
+	/**
+	 * Disposes of the PMREMGenerator's internal memory. Note that PMREMGenerator is a static class,
+	 * so you should not need more than one PMREMGenerator object. If you do, calling dispose() on
+	 * one of them will cause any others to also become unusable.
+	 */
+	dispose() {
+
+		this._dispose();
+
+		if ( this._cubemapMaterial !== null ) this._cubemapMaterial.dispose();
+		if ( this._equirectMaterial !== null ) this._equirectMaterial.dispose();
+		if ( this._backgroundBox !== null ) {
+
+			this._backgroundBox.geometry.dispose();
+			this._backgroundBox.material.dispose();
+
+		}
+
+	}
+
+	// private interface
+
+	_setSize( cubeSize ) {
+
+		this._lodMax = Math.floor( Math.log2( cubeSize ) );
+		this._cubeSize = Math.pow( 2, this._lodMax );
+
+	}
+
+	_dispose() {
+
+		if ( this._blurMaterial !== null ) this._blurMaterial.dispose();
+
+		if ( this._pingPongRenderTarget !== null ) this._pingPongRenderTarget.dispose();
+
+		for ( let i = 0; i < this._lodPlanes.length; i ++ ) {
+
+			this._lodPlanes[ i ].dispose();
+
+		}
+
+	}
+
+	_cleanup( outputTarget ) {
+
+		this._renderer.setRenderTarget( _oldTarget, _oldActiveCubeFace, _oldActiveMipmapLevel );
+		outputTarget.scissorTest = false;
+		_setViewport( outputTarget, 0, 0, outputTarget.width, outputTarget.height );
+
+	}
+
+	_fromTexture( texture, renderTarget ) {
+
+		if ( texture.mapping === CubeReflectionMapping || texture.mapping === CubeRefractionMapping ) {
+
+			this._setSize( texture.image.length === 0 ? 16 : ( texture.image[ 0 ].width || texture.image[ 0 ].image.width ) );
+
+		} else { // Equirectangular
+
+			this._setSize( texture.image.width / 4 );
+
+		}
+
+		_oldTarget = this._renderer.getRenderTarget();
+		_oldActiveCubeFace = this._renderer.getActiveCubeFace();
+		_oldActiveMipmapLevel = this._renderer.getActiveMipmapLevel();
+
+		const cubeUVRenderTarget = renderTarget || this._allocateTargets();
+		this._textureToCubeUV( texture, cubeUVRenderTarget );
+		this._applyPMREM( cubeUVRenderTarget );
+		this._cleanup( cubeUVRenderTarget );
+
+		return cubeUVRenderTarget;
+
+	}
+
+	_allocateTargets() {
+
+		const width = 3 * Math.max( this._cubeSize, 16 * 7 );
+		const height = 4 * this._cubeSize;
+
+		const params = {
+			magFilter: LinearFilter,
+			minFilter: LinearFilter,
+			generateMipmaps: false,
+			type: HalfFloatType,
+			format: RGBAFormat,
+			colorSpace: LinearSRGBColorSpace,
+			//depthBuffer: false
+		};
+
+		const cubeUVRenderTarget = _createRenderTarget( width, height, params );
+
+		if ( this._pingPongRenderTarget === null || this._pingPongRenderTarget.width !== width || this._pingPongRenderTarget.height !== height ) {
+
+			if ( this._pingPongRenderTarget !== null ) {
+
+				this._dispose();
+
+			}
+
+			this._pingPongRenderTarget = _createRenderTarget( width, height, params );
+
+			const { _lodMax } = this;
+			( { sizeLods: this._sizeLods, lodPlanes: this._lodPlanes, sigmas: this._sigmas, lodMeshes: this._lodMeshes } = _createPlanes( _lodMax ) );
+
+			this._blurMaterial = _getBlurShader( _lodMax, width, height );
+
+		}
+
+		return cubeUVRenderTarget;
+
+	}
+
+	_compileMaterial( material ) {
+
+		const tmpMesh = this._lodMeshes[ 0 ];
+		tmpMesh.material = material;
+
+		this._renderer.compile( tmpMesh, _flatCamera );
+
+	}
+
+	_sceneToCubeUV( scene, near, far, cubeUVRenderTarget ) {
+
+		const cubeCamera = _cubeCamera;
+		cubeCamera.near = near;
+		cubeCamera.far = far;
+
+		// px, py, pz, nx, ny, nz
+		const upSign = [ - 1, 1, - 1, - 1, - 1, - 1 ];
+		const forwardSign = [ 1, 1, 1, - 1, - 1, - 1 ];
+
+		const renderer = this._renderer;
+
+		const originalAutoClear = renderer.autoClear;
+
+		renderer.getClearColor( _clearColor );
+
+		renderer.autoClear = false;
+
+		let backgroundBox = this._backgroundBox;
+
+		if ( backgroundBox === null ) {
+
+			const backgroundMaterial = new MeshBasicMaterial( {
+				name: 'PMREM.Background',
+				side: BackSide,
+				depthWrite: false,
+				depthTest: false
+			} );
+
+			backgroundBox = new Mesh( new BoxGeometry(), backgroundMaterial );
+
+		}
+
+		let useSolidColor = false;
+		const background = scene.background;
+
+		if ( background ) {
+
+			if ( background.isColor ) {
+
+				backgroundBox.material.color.copy( background );
+				scene.background = null;
+				useSolidColor = true;
+
+			}
+
+		} else {
+
+			backgroundBox.material.color.copy( _clearColor );
+			useSolidColor = true;
+
+		}
+
+		renderer.setRenderTarget( cubeUVRenderTarget );
+
+		renderer.clear();
+
+		if ( useSolidColor ) {
+
+			renderer.render( backgroundBox, cubeCamera );
+
+		}
+
+		for ( let i = 0; i < 6; i ++ ) {
+
+			const col = i % 3;
+
+			if ( col === 0 ) {
+
+				cubeCamera.up.set( 0, upSign[ i ], 0 );
+				cubeCamera.lookAt( forwardSign[ i ], 0, 0 );
+
+			} else if ( col === 1 ) {
+
+				cubeCamera.up.set( 0, 0, upSign[ i ] );
+				cubeCamera.lookAt( 0, forwardSign[ i ], 0 );
+
+			} else {
+
+				cubeCamera.up.set( 0, upSign[ i ], 0 );
+				cubeCamera.lookAt( 0, 0, forwardSign[ i ] );
+
+			}
+
+			const size = this._cubeSize;
+
+			_setViewport( cubeUVRenderTarget, col * size, i > 2 ? size : 0, size, size );
+
+			renderer.render( scene, cubeCamera );
+
+		}
+
+		renderer.autoClear = originalAutoClear;
+		scene.background = background;
+
+	}
+
+	_textureToCubeUV( texture, cubeUVRenderTarget ) {
+
+		const renderer = this._renderer;
+
+		const isCubeTexture = ( texture.mapping === CubeReflectionMapping || texture.mapping === CubeRefractionMapping );
+
+		if ( isCubeTexture ) {
+
+			if ( this._cubemapMaterial === null ) {
+
+				this._cubemapMaterial = _getCubemapMaterial( texture );
+
+			}
+
+		} else {
+
+			if ( this._equirectMaterial === null ) {
+
+				this._equirectMaterial = _getEquirectMaterial( texture );
+
+			}
+
+		}
+
+		const material = isCubeTexture ? this._cubemapMaterial : this._equirectMaterial;
+		material.fragmentNode.value = texture;
+
+		const mesh = this._lodMeshes[ 0 ];
+		mesh.material = material;
+
+		const size = this._cubeSize;
+
+		_setViewport( cubeUVRenderTarget, 0, 0, 3 * size, 2 * size );
+
+		renderer.setRenderTarget( cubeUVRenderTarget );
+		renderer.render( mesh, _flatCamera );
+
+	}
+
+	_applyPMREM( cubeUVRenderTarget ) {
+
+		const renderer = this._renderer;
+		const autoClear = renderer.autoClear;
+		renderer.autoClear = false;
+		const n = this._lodPlanes.length;
+
+		for ( let i = 1; i < n; i ++ ) {
+
+			const sigma = Math.sqrt( this._sigmas[ i ] * this._sigmas[ i ] - this._sigmas[ i - 1 ] * this._sigmas[ i - 1 ] );
+
+			const poleAxis = _axisDirections[ ( n - i - 1 ) % _axisDirections.length ];
+
+			this._blur( cubeUVRenderTarget, i - 1, i, sigma, poleAxis );
+
+		}
+
+		renderer.autoClear = autoClear;
+
+	}
+
+	/**
+	 * This is a two-pass Gaussian blur for a cubemap. Normally this is done
+	 * vertically and horizontally, but this breaks down on a cube. Here we apply
+	 * the blur latitudinally (around the poles), and then longitudinally (towards
+	 * the poles) to approximate the orthogonally-separable blur. It is least
+	 * accurate at the poles, but still does a decent job.
+	 */
+	_blur( cubeUVRenderTarget, lodIn, lodOut, sigma, poleAxis ) {
+
+		const pingPongRenderTarget = this._pingPongRenderTarget;
+
+		this._halfBlur(
+			cubeUVRenderTarget,
+			pingPongRenderTarget,
+			lodIn,
+			lodOut,
+			sigma,
+			'latitudinal',
+			poleAxis );
+
+		this._halfBlur(
+			pingPongRenderTarget,
+			cubeUVRenderTarget,
+			lodOut,
+			lodOut,
+			sigma,
+			'longitudinal',
+			poleAxis );
+
+	}
+
+	_halfBlur( targetIn, targetOut, lodIn, lodOut, sigmaRadians, direction, poleAxis ) {
+
+		const renderer = this._renderer;
+		const blurMaterial = this._blurMaterial;
+
+		if ( direction !== 'latitudinal' && direction !== 'longitudinal' ) {
+
+			console.error( 'blur direction must be either latitudinal or longitudinal!' );
+
+		}
+
+		// Number of standard deviations at which to cut off the discrete approximation.
+		const STANDARD_DEVIATIONS = 3;
+
+		const blurMesh = this._lodMeshes[ lodOut ];
+		blurMesh.material = blurMaterial;
+
+		const blurUniforms = blurMaterial.uniforms;
+
+		const pixels = this._sizeLods[ lodIn ] - 1;
+		const radiansPerPixel = isFinite( sigmaRadians ) ? Math.PI / ( 2 * pixels ) : 2 * Math.PI / ( 2 * MAX_SAMPLES - 1 );
+		const sigmaPixels = sigmaRadians / radiansPerPixel;
+		const samples = isFinite( sigmaRadians ) ? 1 + Math.floor( STANDARD_DEVIATIONS * sigmaPixels ) : MAX_SAMPLES;
+
+		if ( samples > MAX_SAMPLES ) {
+
+			console.warn( `sigmaRadians, ${
+				sigmaRadians}, is too large and will clip, as it requested ${
+				samples} samples when the maximum is set to ${MAX_SAMPLES}` );
+
+		}
+
+		const weights = [];
+		let sum = 0;
+
+		for ( let i = 0; i < MAX_SAMPLES; ++ i ) {
+
+			const x = i / sigmaPixels;
+			const weight = Math.exp( - x * x / 2 );
+			weights.push( weight );
+
+			if ( i === 0 ) {
+
+				sum += weight;
+
+			} else if ( i < samples ) {
+
+				sum += 2 * weight;
+
+			}
+
+		}
+
+		for ( let i = 0; i < weights.length; i ++ ) {
+
+			weights[ i ] = weights[ i ] / sum;
+
+		}
+
+		targetIn.texture.frame = ( targetIn.texture.frame || 0 ) + 1;
+
+		blurUniforms.envMap.value = targetIn.texture;
+		blurUniforms.samples.value = samples;
+		blurUniforms.weights.array = weights;
+		blurUniforms.latitudinal.value = direction === 'latitudinal' ? 1 : 0;
+
+		if ( poleAxis ) {
+
+			blurUniforms.poleAxis.value = poleAxis;
+
+		}
+
+		const { _lodMax } = this;
+		blurUniforms.dTheta.value = radiansPerPixel;
+		blurUniforms.mipInt.value = _lodMax - lodIn;
+
+		const outputSize = this._sizeLods[ lodOut ];
+		const x = 3 * outputSize * ( lodOut > _lodMax - LOD_MIN ? lodOut - _lodMax + LOD_MIN : 0 );
+		const y = 4 * ( this._cubeSize - outputSize );
+
+		_setViewport( targetOut, x, y, 3 * outputSize, 2 * outputSize );
+		renderer.setRenderTarget( targetOut );
+		renderer.render( blurMesh, _flatCamera );
+
+	}
+
+}
+
+function _createPlanes( lodMax ) {
+
+	const lodPlanes = [];
+	const sizeLods = [];
+	const sigmas = [];
+	const lodMeshes = [];
+
+	let lod = lodMax;
+
+	const totalLods = lodMax - LOD_MIN + 1 + EXTRA_LOD_SIGMA.length;
+
+	for ( let i = 0; i < totalLods; i ++ ) {
+
+		const sizeLod = Math.pow( 2, lod );
+		sizeLods.push( sizeLod );
+		let sigma = 1.0 / sizeLod;
+
+		if ( i > lodMax - LOD_MIN ) {
+
+			sigma = EXTRA_LOD_SIGMA[ i - lodMax + LOD_MIN - 1 ];
+
+		} else if ( i === 0 ) {
+
+			sigma = 0;
+
+		}
+
+		sigmas.push( sigma );
+
+		const texelSize = 1.0 / ( sizeLod - 2 );
+		const min = - texelSize;
+		const max = 1 + texelSize;
+		const uv1 = [ min, min, max, min, max, max, min, min, max, max, min, max ];
+
+		const cubeFaces = 6;
+		const vertices = 6;
+		const positionSize = 3;
+		const uvSize = 2;
+		const faceIndexSize = 1;
+
+		const position = new Float32Array( positionSize * vertices * cubeFaces );
+		const uv = new Float32Array( uvSize * vertices * cubeFaces );
+		const faceIndex = new Float32Array( faceIndexSize * vertices * cubeFaces );
+
+		for ( let face = 0; face < cubeFaces; face ++ ) {
+
+			const x = ( face % 3 ) * 2 / 3 - 1;
+			const y = face > 2 ? 0 : - 1;
+			const coordinates = [
+				x, y, 0,
+				x + 2 / 3, y, 0,
+				x + 2 / 3, y + 1, 0,
+				x, y, 0,
+				x + 2 / 3, y + 1, 0,
+				x, y + 1, 0
+			];
+
+			const faceIdx = _faceLib[ face ];
+			position.set( coordinates, positionSize * vertices * faceIdx );
+			uv.set( uv1, uvSize * vertices * faceIdx );
+			const fill = [ faceIdx, faceIdx, faceIdx, faceIdx, faceIdx, faceIdx ];
+			faceIndex.set( fill, faceIndexSize * vertices * faceIdx );
+
+		}
+
+		const planes = new BufferGeometry();
+		planes.setAttribute( 'position', new BufferAttribute( position, positionSize ) );
+		planes.setAttribute( 'uv', new BufferAttribute( uv, uvSize ) );
+		planes.setAttribute( 'faceIndex', new BufferAttribute( faceIndex, faceIndexSize ) );
+		lodPlanes.push( planes );
+		lodMeshes.push( new Mesh( planes, null ) );
+
+		if ( lod > LOD_MIN ) {
+
+			lod --;
+
+		}
+
+	}
+
+	return { lodPlanes, sizeLods, sigmas, lodMeshes };
+
+}
+
+function _createRenderTarget( width, height, params ) {
+
+	const cubeUVRenderTarget = new RenderTarget( width, height, params );
+	cubeUVRenderTarget.texture.mapping = CubeUVReflectionMapping;
+	cubeUVRenderTarget.texture.name = 'PMREM.cubeUv';
+	cubeUVRenderTarget.texture.isPMREMTexture = true;
+	cubeUVRenderTarget.scissorTest = true;
+	return cubeUVRenderTarget;
+
+}
+
+function _setViewport( target, x, y, width, height ) {
+
+	const viewY = target.height - height - y;
+
+	target.viewport.set( x, viewY, width, height );
+	target.scissor.set( x, viewY, width, height );
+
+}
+
+function _getMaterial() {
+
+	const material = new NodeMaterial();
+	material.depthTest = false;
+	material.depthWrite = false;
+	material.blending = NoBlending;
+
+	return material;
+
+}
+
+function _getBlurShader( lodMax, width, height ) {
+
+	const weights = uniforms( new Array( MAX_SAMPLES ).fill( 0 ) );
+	const poleAxis = uniform( new Vector3( 0, 1, 0 ) );
+	const dTheta = uniform( 0 );
+	const n = float( MAX_SAMPLES );
+	const latitudinal = uniform( 0 ); // false, bool
+	const samples = uniform( 1 ); // int
+	const envMap = texture( null );
+	const mipInt = uniform( 0 ); // int
+	const CUBEUV_TEXEL_WIDTH = float( 1 / width );
+	const CUBEUV_TEXEL_HEIGHT = float( 1 / height );
+	const CUBEUV_MAX_MIP = float( lodMax );
+
+	const materialUniforms = {
+		n,
+		latitudinal,
+		weights,
+		poleAxis,
+		outputDirection,
+		dTheta,
+		samples,
+		envMap,
+		mipInt,
+		CUBEUV_TEXEL_WIDTH,
+		CUBEUV_TEXEL_HEIGHT,
+		CUBEUV_MAX_MIP
+	};
+
+	const material = _getMaterial();
+	material.uniforms = materialUniforms; // TODO: Move to outside of the material
+	material.fragmentNode = blur( { ...materialUniforms, latitudinal: latitudinal.equal( 1 ) } );
+
+	return material;
+
+}
+
+function _getCubemapMaterial( envTexture ) {
+
+	const material = _getMaterial();
+	material.fragmentNode = cubeTexture( envTexture, outputDirection );
+
+	return material;
+
+}
+
+function _getEquirectMaterial( envTexture ) {
+
+	const material = _getMaterial();
+	material.fragmentNode = texture( envTexture, equirectUV( outputDirection ), 0 );
+
+	return material;
+
+}
+
+export default PMREMGenerator;

public/sdk/three/jsm/renderers/common/nodes/NodeBuilderState.js

@@ -0,0 +1,44 @@
+class NodeBuilderState {
+
+	constructor( vertexShader, fragmentShader, computeShader, nodeAttributes, bindings, updateNodes, updateBeforeNodes, transforms = [] ) {
+
+		this.vertexShader = vertexShader;
+		this.fragmentShader = fragmentShader;
+		this.computeShader = computeShader;
+		this.transforms = transforms;
+
+		this.nodeAttributes = nodeAttributes;
+		this.bindings = bindings;
+
+		this.updateNodes = updateNodes;
+		this.updateBeforeNodes = updateBeforeNodes;
+
+		this.usedTimes = 0;
+
+	}
+
+	createBindings() {
+
+		const bindingsArray = [];
+
+		for ( const instanceBinding of this.bindings ) {
+
+			let binding = instanceBinding;
+
+			if ( instanceBinding.shared !== true ) {
+
+				binding = instanceBinding.clone();
+
+			}
+
+			bindingsArray.push( binding );
+
+		}
+
+		return bindingsArray;
+
+	}
+
+}
+
+export default NodeBuilderState;

public/sdk/three/jsm/renderers/common/nodes/NodeSampledTexture.js

@@ -0,0 +1,49 @@
+import { SampledTexture } from '../SampledTexture.js';
+
+class NodeSampledTexture extends SampledTexture {
+
+	constructor( name, textureNode ) {
+
+		super( name, textureNode ? textureNode.value : null );
+
+		this.textureNode = textureNode;
+
+	}
+
+	get needsBindingsUpdate() {
+
+		return this.textureNode.value !== this.texture || super.needsBindingsUpdate;
+
+	}
+
+	update() {
+
+		const { textureNode } = this;
+
+		if ( this.texture !== textureNode.value ) {
+
+			this.texture = textureNode.value;
+
+			return true;
+
+		}
+
+		return super.update();
+
+	}
+
+}
+
+class NodeSampledCubeTexture extends NodeSampledTexture {
+
+	constructor( name, textureNode ) {
+
+		super( name, textureNode );
+
+		this.isSampledCubeTexture = true;
+
+	}
+
+}
+
+export { NodeSampledTexture, NodeSampledCubeTexture };

public/sdk/three/jsm/renderers/common/nodes/NodeSampler.js

@@ -0,0 +1,15 @@
+import Sampler from '../Sampler.js';
+
+class NodeSampler extends Sampler {
+
+	constructor( name, textureNode ) {
+
+		super( name, textureNode ? textureNode.value : null );
+
+		this.textureNode = textureNode;
+
+	}
+
+}
+
+export default NodeSampler;

public/sdk/three/jsm/renderers/common/nodes/NodeStorageBuffer.js

@@ -0,0 +1,23 @@
+import StorageBuffer from '../StorageBuffer.js';
+
+let _id = 0;
+
+class NodeStorageBuffer extends StorageBuffer {
+
+	constructor( nodeUniform ) {
+
+		super( 'StorageBuffer_' + _id ++, nodeUniform ? nodeUniform.value : null );
+
+		this.nodeUniform = nodeUniform;
+
+	}
+
+	get buffer() {
+
+		return this.nodeUniform.value;
+
+	}
+
+}
+
+export default NodeStorageBuffer;

public/sdk/three/jsm/renderers/common/nodes/NodeUniform.js

@@ -0,0 +1,135 @@
+import {
+	FloatUniform, Vector2Uniform, Vector3Uniform, Vector4Uniform,
+	ColorUniform, Matrix3Uniform, Matrix4Uniform
+} from '../Uniform.js';
+
+class FloatNodeUniform extends FloatUniform {
+
+	constructor( nodeUniform ) {
+
+		super( nodeUniform.name, nodeUniform.value );
+
+		this.nodeUniform = nodeUniform;
+
+	}
+
+	getValue() {
+
+		return this.nodeUniform.value;
+
+	}
+
+}
+
+class Vector2NodeUniform extends Vector2Uniform {
+
+	constructor( nodeUniform ) {
+
+		super( nodeUniform.name, nodeUniform.value );
+
+		this.nodeUniform = nodeUniform;
+
+	}
+
+	getValue() {
+
+		return this.nodeUniform.value;
+
+	}
+
+}
+
+class Vector3NodeUniform extends Vector3Uniform {
+
+	constructor( nodeUniform ) {
+
+		super( nodeUniform.name, nodeUniform.value );
+
+		this.nodeUniform = nodeUniform;
+
+	}
+
+	getValue() {
+
+		return this.nodeUniform.value;
+
+	}
+
+}
+
+class Vector4NodeUniform extends Vector4Uniform {
+
+	constructor( nodeUniform ) {
+
+		super( nodeUniform.name, nodeUniform.value );
+
+		this.nodeUniform = nodeUniform;
+
+	}
+
+	getValue() {
+
+		return this.nodeUniform.value;
+
+	}
+
+}
+
+class ColorNodeUniform extends ColorUniform {
+
+	constructor( nodeUniform ) {
+
+		super( nodeUniform.name, nodeUniform.value );
+
+		this.nodeUniform = nodeUniform;
+
+	}
+
+	getValue() {
+
+		return this.nodeUniform.value;
+
+	}
+
+}
+
+class Matrix3NodeUniform extends Matrix3Uniform {
+
+	constructor( nodeUniform ) {
+
+		super( nodeUniform.name, nodeUniform.value );
+
+		this.nodeUniform = nodeUniform;
+
+	}
+
+	getValue() {
+
+		return this.nodeUniform.value;
+
+	}
+
+}
+
+class Matrix4NodeUniform extends Matrix4Uniform {
+
+	constructor( nodeUniform ) {
+
+		super( nodeUniform.name, nodeUniform.value );
+
+		this.nodeUniform = nodeUniform;
+
+	}
+
+	getValue() {
+
+		return this.nodeUniform.value;
+
+	}
+
+}
+
+export {
+	FloatNodeUniform, Vector2NodeUniform, Vector3NodeUniform, Vector4NodeUniform,
+	ColorNodeUniform, Matrix3NodeUniform, Matrix4NodeUniform
+};

public/sdk/three/jsm/renderers/common/nodes/NodeUniformBuffer.js

@@ -0,0 +1,23 @@
+import UniformBuffer from '../UniformBuffer.js';
+
+let _id = 0;
+
+class NodeUniformBuffer extends UniformBuffer {
+
+	constructor( nodeUniform ) {
+
+		super( 'UniformBuffer_' + _id ++, nodeUniform ? nodeUniform.value : null );
+
+		this.nodeUniform = nodeUniform;
+
+	}
+
+	get buffer() {
+
+		return this.nodeUniform.value;
+
+	}
+
+}
+
+export default NodeUniformBuffer;

public/sdk/three/jsm/renderers/common/nodes/NodeUniformsGroup.js

@@ -0,0 +1,44 @@
+import UniformsGroup from '../UniformsGroup.js';
+
+let id = 0;
+
+class NodeUniformsGroup extends UniformsGroup {
+
+	constructor( name, groupNode ) {
+
+		super( name );
+
+		this.id = id ++;
+		this.groupNode = groupNode;
+
+		this.isNodeUniformsGroup = true;
+
+	}
+
+	get shared() {
+
+		return this.groupNode.shared;
+
+	}
+
+	getNodes() {
+
+		const nodes = [];
+
+		for ( const uniform of this.uniforms ) {
+
+			const node = uniform.nodeUniform.node;
+
+			if ( ! node ) throw new Error( 'NodeUniformsGroup: Uniform has no node.' );
+
+			nodes.push( node );
+
+		}
+
+		return nodes;
+
+	}
+
+}
+
+export default NodeUniformsGroup;

public/sdk/three/jsm/renderers/common/nodes/Nodes.js

@@ -0,0 +1,467 @@
+import DataMap from '../DataMap.js';
+import ChainMap from '../ChainMap.js';
+import NodeBuilderState from './NodeBuilderState.js';
+import { EquirectangularReflectionMapping, EquirectangularRefractionMapping, NoToneMapping, SRGBColorSpace } from 'three';
+import { NodeFrame, vec4, objectGroup, renderGroup, frameGroup, cubeTexture, texture, rangeFog, densityFog, reference, viewportBottomLeft, normalWorld, pmremTexture, viewportTopLeft } from '../../../nodes/Nodes.js';
+
+class Nodes extends DataMap {
+
+	constructor( renderer, backend ) {
+
+		super();
+
+		this.renderer = renderer;
+		this.backend = backend;
+		this.nodeFrame = new NodeFrame();
+		this.nodeBuilderCache = new Map();
+		this.callHashCache = new ChainMap();
+		this.groupsData = new ChainMap();
+
+	}
+
+	updateGroup( nodeUniformsGroup ) {
+
+		const groupNode = nodeUniformsGroup.groupNode;
+		const name = groupNode.name;
+
+		// objectGroup is every updated
+
+		if ( name === objectGroup.name ) return true;
+
+		// renderGroup is updated once per render/compute call
+
+		if ( name === renderGroup.name ) {
+
+			const uniformsGroupData = this.get( nodeUniformsGroup );
+			const renderId = this.nodeFrame.renderId;
+
+			if ( uniformsGroupData.renderId !== renderId ) {
+
+				uniformsGroupData.renderId = renderId;
+
+				return true;
+
+			}
+
+			return false;
+
+		}
+
+		// frameGroup is updated once per frame
+
+		if ( name === frameGroup.name ) {
+
+			const uniformsGroupData = this.get( nodeUniformsGroup );
+			const frameId = this.nodeFrame.frameId;
+
+			if ( uniformsGroupData.frameId !== frameId ) {
+
+				uniformsGroupData.frameId = frameId;
+
+				return true;
+
+			}
+
+			return false;
+
+		}
+
+		// other groups are updated just when groupNode.needsUpdate is true
+
+		const groupChain = [ groupNode, nodeUniformsGroup ];
+
+		let groupData = this.groupsData.get( groupChain );
+		if ( groupData === undefined ) this.groupsData.set( groupChain, groupData = {} );
+
+		if ( groupData.version !== groupNode.version ) {
+
+			groupData.version = groupNode.version;
+
+			return true;
+
+		}
+
+		return false;
+
+	}
+
+	getForRenderCacheKey( renderObject ) {
+
+		return renderObject.initialCacheKey;
+
+	}
+
+	getForRender( renderObject ) {
+
+		const renderObjectData = this.get( renderObject );
+
+		let nodeBuilderState = renderObjectData.nodeBuilderState;
+
+		if ( nodeBuilderState === undefined ) {
+
+			const { nodeBuilderCache } = this;
+
+			const cacheKey = this.getForRenderCacheKey( renderObject );
+
+			nodeBuilderState = nodeBuilderCache.get( cacheKey );
+
+			if ( nodeBuilderState === undefined ) {
+
+				const nodeBuilder = this.backend.createNodeBuilder( renderObject.object, this.renderer, renderObject.scene );
+				nodeBuilder.material = renderObject.material;
+				nodeBuilder.context.material = renderObject.material;
+				nodeBuilder.lightsNode = renderObject.lightsNode;
+				nodeBuilder.environmentNode = this.getEnvironmentNode( renderObject.scene );
+				nodeBuilder.fogNode = this.getFogNode( renderObject.scene );
+				nodeBuilder.clippingContext = renderObject.clippingContext;
+				nodeBuilder.build();
+
+				nodeBuilderState = this._createNodeBuilderState( nodeBuilder );
+
+				nodeBuilderCache.set( cacheKey, nodeBuilderState );
+
+			}
+
+			nodeBuilderState.usedTimes ++;
+
+			renderObjectData.nodeBuilderState = nodeBuilderState;
+
+		}
+
+		return nodeBuilderState;
+
+	}
+
+	delete( object ) {
+
+		if ( object.isRenderObject ) {
+
+			const nodeBuilderState = this.get( object ).nodeBuilderState;
+			nodeBuilderState.usedTimes --;
+
+			if ( nodeBuilderState.usedTimes === 0 ) {
+
+				this.nodeBuilderCache.delete( this.getForRenderCacheKey( object ) );
+
+			}
+
+		}
+
+		return super.delete( object );
+
+	}
+
+	getForCompute( computeNode ) {
+
+		const computeData = this.get( computeNode );
+
+		let nodeBuilderState = computeData.nodeBuilderState;
+
+		if ( nodeBuilderState === undefined ) {
+
+			const nodeBuilder = this.backend.createNodeBuilder( computeNode, this.renderer );
+			nodeBuilder.build();
+
+			nodeBuilderState = this._createNodeBuilderState( nodeBuilder );
+
+			computeData.nodeBuilderState = nodeBuilderState;
+
+		}
+
+		return nodeBuilderState;
+
+	}
+
+	_createNodeBuilderState( nodeBuilder ) {
+
+		return new NodeBuilderState(
+			nodeBuilder.vertexShader,
+			nodeBuilder.fragmentShader,
+			nodeBuilder.computeShader,
+			nodeBuilder.getAttributesArray(),
+			nodeBuilder.getBindings(),
+			nodeBuilder.updateNodes,
+			nodeBuilder.updateBeforeNodes,
+			nodeBuilder.transforms
+		);
+
+	}
+
+	getEnvironmentNode( scene ) {
+
+		return scene.environmentNode || this.get( scene ).environmentNode || null;
+
+	}
+
+	getBackgroundNode( scene ) {
+
+		return scene.backgroundNode || this.get( scene ).backgroundNode || null;
+
+	}
+
+	getFogNode( scene ) {
+
+		return scene.fogNode || this.get( scene ).fogNode || null;
+
+	}
+
+	getCacheKey( scene, lightsNode ) {
+
+		const chain = [ scene, lightsNode ];
+		const callId = this.renderer.info.calls;
+
+		let cacheKeyData = this.callHashCache.get( chain );
+
+		if ( cacheKeyData === undefined || cacheKeyData.callId !== callId ) {
+
+			const environmentNode = this.getEnvironmentNode( scene );
+			const fogNode = this.getFogNode( scene );
+
+			const cacheKey = [];
+
+			if ( lightsNode ) cacheKey.push( lightsNode.getCacheKey() );
+			if ( environmentNode ) cacheKey.push( environmentNode.getCacheKey() );
+			if ( fogNode ) cacheKey.push( fogNode.getCacheKey() );
+
+			cacheKeyData = {
+				callId,
+				cacheKey: cacheKey.join( ',' )
+			};
+
+			this.callHashCache.set( chain, cacheKeyData );
+
+		}
+
+		return cacheKeyData.cacheKey;
+
+	}
+
+	updateScene( scene ) {
+
+		this.updateEnvironment( scene );
+		this.updateFog( scene );
+		this.updateBackground( scene );
+
+	}
+
+	get isToneMappingState() {
+
+		return this.renderer.getRenderTarget() ? false : true;
+
+	}
+
+	updateBackground( scene ) {
+
+		const sceneData = this.get( scene );
+		const background = scene.background;
+
+		if ( background ) {
+
+			if ( sceneData.background !== background ) {
+
+				let backgroundNode = null;
+
+				if ( background.isCubeTexture === true || ( background.mapping === EquirectangularReflectionMapping || background.mapping === EquirectangularRefractionMapping ) ) {
+
+					backgroundNode = pmremTexture( background, normalWorld );
+
+				} else if ( background.isTexture === true ) {
+
+					backgroundNode = texture( background, viewportBottomLeft ).setUpdateMatrix( true );
+
+				} else if ( background.isColor !== true ) {
+
+					console.error( 'WebGPUNodes: Unsupported background configuration.', background );
+
+				}
+
+				sceneData.backgroundNode = backgroundNode;
+				sceneData.background = background;
+
+			}
+
+		} else if ( sceneData.backgroundNode ) {
+
+			delete sceneData.backgroundNode;
+			delete sceneData.background;
+
+		}
+
+	}
+
+	updateFog( scene ) {
+
+		const sceneData = this.get( scene );
+		const fog = scene.fog;
+
+		if ( fog ) {
+
+			if ( sceneData.fog !== fog ) {
+
+				let fogNode = null;
+
+				if ( fog.isFogExp2 ) {
+
+					fogNode = densityFog( reference( 'color', 'color', fog ), reference( 'density', 'float', fog ) );
+
+				} else if ( fog.isFog ) {
+
+					fogNode = rangeFog( reference( 'color', 'color', fog ), reference( 'near', 'float', fog ), reference( 'far', 'float', fog ) );
+
+				} else {
+
+					console.error( 'WebGPUNodes: Unsupported fog configuration.', fog );
+
+				}
+
+				sceneData.fogNode = fogNode;
+				sceneData.fog = fog;
+
+			}
+
+		} else {
+
+			delete sceneData.fogNode;
+			delete sceneData.fog;
+
+		}
+
+	}
+
+	updateEnvironment( scene ) {
+
+		const sceneData = this.get( scene );
+		const environment = scene.environment;
+
+		if ( environment ) {
+
+			if ( sceneData.environment !== environment ) {
+
+				let environmentNode = null;
+
+				if ( environment.isCubeTexture === true ) {
+
+					environmentNode = cubeTexture( environment );
+
+				} else if ( environment.isTexture === true ) {
+
+					environmentNode = texture( environment );
+
+				} else {
+
+					console.error( 'Nodes: Unsupported environment configuration.', environment );
+
+				}
+
+				sceneData.environmentNode = environmentNode;
+				sceneData.environment = environment;
+
+			}
+
+		} else if ( sceneData.environmentNode ) {
+
+			delete sceneData.environmentNode;
+			delete sceneData.environment;
+
+		}
+
+	}
+
+	getNodeFrame( renderer = this.renderer, scene = null, object = null, camera = null, material = null ) {
+
+		const nodeFrame = this.nodeFrame;
+		nodeFrame.renderer = renderer;
+		nodeFrame.scene = scene;
+		nodeFrame.object = object;
+		nodeFrame.camera = camera;
+		nodeFrame.material = material;
+
+		return nodeFrame;
+
+	}
+
+	getNodeFrameForRender( renderObject ) {
+
+		return this.getNodeFrame( renderObject.renderer, renderObject.scene, renderObject.object, renderObject.camera, renderObject.material );
+
+	}
+
+	getOutputNode( outputTexture ) {
+
+		let output = texture( outputTexture, viewportTopLeft );
+
+		if ( this.isToneMappingState ) {
+
+			if ( this.renderer.toneMappingNode ) {
+
+				output = vec4( this.renderer.toneMappingNode.context( { color: output.rgb } ), output.a );
+
+			} else if ( this.renderer.toneMapping !== NoToneMapping ) {
+
+				output = output.toneMapping( this.renderer.toneMapping );
+
+			}
+
+		}
+
+		if ( this.renderer.currentColorSpace === SRGBColorSpace ) {
+
+			output = output.linearToColorSpace( this.renderer.currentColorSpace );
+
+		}
+
+		return output;
+
+	}
+
+	updateBefore( renderObject ) {
+
+		const nodeFrame = this.getNodeFrameForRender( renderObject );
+		const nodeBuilder = renderObject.getNodeBuilderState();
+
+		for ( const node of nodeBuilder.updateBeforeNodes ) {
+
+			nodeFrame.updateBeforeNode( node );
+
+		}
+
+	}
+
+	updateForCompute( computeNode ) {
+
+		const nodeFrame = this.getNodeFrame();
+		const nodeBuilder = this.getForCompute( computeNode );
+
+		for ( const node of nodeBuilder.updateNodes ) {
+
+			nodeFrame.updateNode( node );
+
+		}
+
+	}
+
+	updateForRender( renderObject ) {
+
+		const nodeFrame = this.getNodeFrameForRender( renderObject );
+		const nodeBuilder = renderObject.getNodeBuilderState();
+
+		for ( const node of nodeBuilder.updateNodes ) {
+
+			nodeFrame.updateNode( node );
+
+		}
+
+	}
+
+	dispose() {
+
+		super.dispose();
+
+		this.nodeFrame = new NodeFrame();
+		this.nodeBuilderCache = new Map();
+
+	}
+
+}
+
+export default Nodes;

public/sdk/three/jsm/renderers/webgl/WebGLBufferRenderer.js

@@ -0,0 +1,145 @@
+class WebGLBufferRenderer {
+
+	constructor( backend ) {
+
+		this.gl = backend.gl;
+		this.extensions = backend.extensions;
+		this.info = backend.renderer.info;
+		this.mode = null;
+		this.index = 0;
+		this.type = null;
+		this.object = null;
+
+	}
+
+	render( start, count ) {
+
+		const { gl, mode, object, type, info, index } = this;
+
+		if ( index !== 0 ) {
+
+			gl.drawElements( mode, count, type, start );
+
+		} else {
+
+			gl.drawArrays( mode, start, count );
+
+		}
+
+		info.update( object, count, mode, 1 );
+
+	}
+
+	renderInstances( start, count, primcount ) {
+
+		const { gl, mode, type, index, object, info } = this;
+
+		if ( primcount === 0 ) return;
+
+		if ( index !== 0 ) {
+
+			gl.drawElementsInstanced( mode, count, type, start, primcount );
+
+		} else {
+
+			gl.drawArraysInstanced( mode, start, count, primcount );
+
+		}
+
+		info.update( object, count, mode, primcount );
+
+	}
+
+	renderMultiDraw( starts, counts, drawCount ) {
+
+		const { extensions, mode, object, info } = this;
+
+		if ( drawCount === 0 ) return;
+
+		const extension = extensions.get( 'WEBGL_multi_draw' );
+
+		if ( extension === null ) {
+
+			for ( let i = 0; i < drawCount; i ++ ) {
+
+				this.render( starts[ i ], counts[ i ] );
+
+			}
+
+		} else {
+
+			if ( this.index !== 0 ) {
+
+				extension.multiDrawElementsWEBGL( mode, counts, 0, this.type, starts, 0, drawCount );
+
+			} else {
+
+				extension.multiDrawArraysWEBGL( mode, starts, 0, counts, 0, drawCount );
+
+			}
+
+			let elementCount = 0;
+			for ( let i = 0; i < drawCount; i ++ ) {
+
+				elementCount += counts[ i ];
+
+			}
+
+			info.update( object, elementCount, mode, 1 );
+
+		}
+
+	}
+
+	renderMultiDrawInstances( starts, counts, drawCount, primcount ) {
+
+		const { extensions, mode, object, info } = this;
+
+		if ( drawCount === 0 ) return;
+
+		const extension = extensions.get( 'WEBGL_multi_draw' );
+
+		if ( extension === null ) {
+
+			for ( let i = 0; i < drawCount; i ++ ) {
+
+				this.renderInstances( starts[ i ], counts[ i ], primcount[ i ] );
+
+			}
+
+		} else {
+
+			if ( this.index !== 0 ) {
+
+				extension.multiDrawElementsInstancedWEBGL( mode, counts, 0, this.type, starts, 0, primcount, 0, drawCount );
+
+			} else {
+
+				extension.multiDrawArraysInstancedWEBGL( mode, starts, 0, counts, 0, primcount, 0, drawCount );
+
+			}
+
+			let elementCount = 0;
+
+			for ( let i = 0; i < drawCount; i ++ ) {
+
+				elementCount += counts[ i ];
+
+			}
+
+			for ( let i = 0; i < primcount.length; i ++ ) {
+
+				info.update( object, elementCount, mode, primcount[ i ] );
+
+			}
+
+		}
+
+	}
+
+	//
+
+}
+
+
+export { WebGLBufferRenderer };

public/sdk/three/jsm/renderers/webgl/nodes/GLSLNodeBuilder.js

@@ -0,0 +1,810 @@
+import { MathNode, GLSLNodeParser, NodeBuilder, UniformNode, vectorComponents } from '../../../nodes/Nodes.js';
+
+import NodeUniformBuffer from '../../common/nodes/NodeUniformBuffer.js';
+import NodeUniformsGroup from '../../common/nodes/NodeUniformsGroup.js';
+
+import { NodeSampledTexture, NodeSampledCubeTexture } from '../../common/nodes/NodeSampledTexture.js';
+
+import { RedFormat, RGFormat, IntType, DataTexture, RGBFormat, RGBAFormat, FloatType } from 'three';
+
+const glslMethods = {
+	[ MathNode.ATAN2 ]: 'atan',
+	textureDimensions: 'textureSize',
+	equals: 'equal'
+};
+
+const precisionLib = {
+	low: 'lowp',
+	medium: 'mediump',
+	high: 'highp'
+};
+
+const supports = {
+	instance: true,
+	swizzleAssign: true
+};
+
+const defaultPrecisions = `
+precision highp float;
+precision highp int;
+precision mediump sampler2DArray;
+precision lowp sampler2DShadow;
+`;
+
+class GLSLNodeBuilder extends NodeBuilder {
+
+	constructor( object, renderer, scene = null ) {
+
+		super( object, renderer, new GLSLNodeParser(), scene );
+
+		this.uniformGroups = {};
+		this.transforms = [];
+
+	}
+
+	getMethod( method ) {
+
+		return glslMethods[ method ] || method;
+
+	}
+
+	getPropertyName( node, shaderStage ) {
+
+		if ( node.isOutputStructVar ) return '';
+
+		return super.getPropertyName( node, shaderStage );
+
+	}
+
+	buildFunctionCode( shaderNode ) {
+
+		const layout = shaderNode.layout;
+		const flowData = this.flowShaderNode( shaderNode );
+
+		const parameters = [];
+
+		for ( const input of layout.inputs ) {
+
+			parameters.push( this.getType( input.type ) + ' ' + input.name );
+
+		}
+
+		//
+
+		const code = `${ this.getType( layout.type ) } ${ layout.name }( ${ parameters.join( ', ' ) } ) {
+
+	${ flowData.vars }
+
+${ flowData.code }
+	return ${ flowData.result };
+
+}`;
+
+		//
+
+		return code;
+
+	}
+
+	setupPBO( storageBufferNode ) {
+
+		const attribute = storageBufferNode.value;
+
+		if ( attribute.pbo === undefined ) {
+
+			const originalArray = attribute.array;
+			const numElements = attribute.count * attribute.itemSize;
+
+			const { itemSize } = attribute;
+			let format = RedFormat;
+
+			if ( itemSize === 2 ) {
+
+				format = RGFormat;
+
+			} else if ( itemSize === 3 ) {
+
+				format = RGBFormat;
+
+			} else if ( itemSize === 4 ) {
+
+				format = RGBAFormat;
+
+			}
+
+			const width = Math.pow( 2, Math.ceil( Math.log2( Math.sqrt( numElements / itemSize ) ) ) );
+			let height = Math.ceil( ( numElements / itemSize ) / width );
+			if ( width * height * itemSize < numElements ) height ++; // Ensure enough space
+
+			const newSize = width * height * itemSize;
+
+			const newArray = new Float32Array( newSize );
+
+			newArray.set( originalArray, 0 );
+
+			attribute.array = newArray;
+
+			const pboTexture = new DataTexture( attribute.array, width, height, format, FloatType );
+			pboTexture.needsUpdate = true;
+			pboTexture.isPBOTexture = true;
+
+			const pbo = new UniformNode( pboTexture );
+			pbo.setPrecision( 'high' );
+
+			attribute.pboNode = pbo;
+			attribute.pbo = pbo.value;
+
+			this.getUniformFromNode( attribute.pboNode, 'texture', this.shaderStage, this.context.label );
+
+		}
+
+	}
+
+	generatePBO( storageArrayElementNode ) {
+
+		const { node, indexNode } = storageArrayElementNode;
+		const attribute = node.value;
+
+		if ( this.renderer.backend.has( attribute ) ) {
+
+			const attributeData = this.renderer.backend.get( attribute );
+			attributeData.pbo = attribute.pbo;
+
+		}
+
+
+		const nodeUniform = this.getUniformFromNode( attribute.pboNode, 'texture', this.shaderStage, this.context.label );
+		const textureName = this.getPropertyName( nodeUniform );
+
+		indexNode.increaseUsage( this ); // force cache generate to be used as index in x,y
+		const indexSnippet = indexNode.build( this, 'uint' );
+
+		const elementNodeData = this.getDataFromNode( storageArrayElementNode );
+
+		let propertyName = elementNodeData.propertyName;
+
+		if ( propertyName === undefined ) {
+
+			// property element
+
+			const nodeVar = this.getVarFromNode( storageArrayElementNode );
+
+			propertyName = this.getPropertyName( nodeVar );
+
+			// property size
+
+			const bufferNodeData = this.getDataFromNode( node );
+
+			let propertySizeName = bufferNodeData.propertySizeName;
+
+			if ( propertySizeName === undefined ) {
+
+				propertySizeName = propertyName + 'Size';
+
+				this.getVarFromNode( node, propertySizeName, 'uint' );
+
+				this.addLineFlowCode( `${ propertySizeName } = uint( textureSize( ${ textureName }, 0 ).x )` );
+
+				bufferNodeData.propertySizeName = propertySizeName;
+
+			}
+
+			//
+
+			const { itemSize } = attribute;
+
+			const channel = '.' + vectorComponents.join( '' ).slice( 0, itemSize );
+			const uvSnippet = `ivec2(${indexSnippet} % ${ propertySizeName }, ${indexSnippet} / ${ propertySizeName })`;
+
+			const snippet = this.generateTextureLoad( null, textureName, uvSnippet, null, '0' );
+
+			//
+
+			this.addLineFlowCode( `${ propertyName } = ${ snippet + channel }` );
+
+			elementNodeData.propertyName = propertyName;
+
+		}
+
+		return propertyName;
+
+	}
+
+	generateTextureLoad( texture, textureProperty, uvIndexSnippet, depthSnippet, levelSnippet = '0' ) {
+
+		if ( depthSnippet ) {
+
+			return `texelFetch( ${ textureProperty }, ivec3( ${ uvIndexSnippet }, ${ depthSnippet } ), ${ levelSnippet } )`;
+
+		} else {
+
+			return `texelFetch( ${ textureProperty }, ${ uvIndexSnippet }, ${ levelSnippet } )`;
+
+		}
+
+	}
+
+	generateTexture( texture, textureProperty, uvSnippet, depthSnippet ) {
+
+		if ( texture.isDepthTexture ) {
+
+			return `texture( ${ textureProperty }, ${ uvSnippet } ).x`;
+
+		} else {
+
+			if ( depthSnippet ) uvSnippet = `vec3( ${ uvSnippet }, ${ depthSnippet } )`;
+
+			return `texture( ${ textureProperty }, ${ uvSnippet } )`;
+
+		}
+
+	}
+
+	generateTextureLevel( texture, textureProperty, uvSnippet, levelSnippet ) {
+
+		return `textureLod( ${ textureProperty }, ${ uvSnippet }, ${ levelSnippet } )`;
+
+	}
+
+	generateTextureGrad( texture, textureProperty, uvSnippet, gradSnippet ) {
+
+		return `textureGrad( ${ textureProperty }, ${ uvSnippet }, ${ gradSnippet[ 0 ] }, ${ gradSnippet[ 1 ] } )`;
+
+	}
+
+	generateTextureCompare( texture, textureProperty, uvSnippet, compareSnippet, depthSnippet, shaderStage = this.shaderStage ) {
+
+		if ( shaderStage === 'fragment' ) {
+
+			return `texture( ${ textureProperty }, vec3( ${ uvSnippet }, ${ compareSnippet } ) )`;
+
+		} else {
+
+			console.error( `WebGPURenderer: THREE.DepthTexture.compareFunction() does not support ${ shaderStage } shader.` );
+
+		}
+
+	}
+
+	getVars( shaderStage ) {
+
+		const snippets = [];
+
+		const vars = this.vars[ shaderStage ];
+
+		if ( vars !== undefined ) {
+
+			for ( const variable of vars ) {
+
+				if ( variable.isOutputStructVar ) continue;
+
+				snippets.push( `${ this.getVar( variable.type, variable.name ) };` );
+
+			}
+
+		}
+
+		return snippets.join( '\n\t' );
+
+	}
+
+	getUniforms( shaderStage ) {
+
+		const uniforms = this.uniforms[ shaderStage ];
+
+		const bindingSnippets = [];
+		const uniformGroups = {};
+
+		for ( const uniform of uniforms ) {
+
+			let snippet = null;
+			let group = false;
+
+			if ( uniform.type === 'texture' ) {
+
+				const texture = uniform.node.value;
+
+				if ( texture.compareFunction ) {
+
+					snippet = `sampler2DShadow ${ uniform.name };`;
+
+				} else if ( texture.isDataArrayTexture === true ) {
+
+					snippet = `sampler2DArray ${ uniform.name };`;
+
+				} else {
+
+					snippet = `sampler2D ${ uniform.name };`;
+
+				}
+
+			} else if ( uniform.type === 'cubeTexture' ) {
+
+				snippet = `samplerCube ${ uniform.name };`;
+
+			} else if ( uniform.type === 'buffer' ) {
+
+				const bufferNode = uniform.node;
+				const bufferType = this.getType( bufferNode.bufferType );
+				const bufferCount = bufferNode.bufferCount;
+
+				const bufferCountSnippet = bufferCount > 0 ? bufferCount : '';
+				snippet = `${bufferNode.name} {\n\t${ bufferType } ${ uniform.name }[${ bufferCountSnippet }];\n};\n`;
+
+			} else {
+
+				const vectorType = this.getVectorType( uniform.type );
+
+				snippet = `${vectorType} ${uniform.name};`;
+
+				group = true;
+
+			}
+
+			const precision = uniform.node.precision;
+
+			if ( precision !== null ) {
+
+				snippet = precisionLib[ precision ] + ' ' + snippet;
+
+			}
+
+			if ( group ) {
+
+				snippet = '\t' + snippet;
+
+				const groupName = uniform.groupNode.name;
+				const groupSnippets = uniformGroups[ groupName ] || ( uniformGroups[ groupName ] = [] );
+
+				groupSnippets.push( snippet );
+
+			} else {
+
+				snippet = 'uniform ' + snippet;
+
+				bindingSnippets.push( snippet );
+
+			}
+
+		}
+
+		let output = '';
+
+		for ( const name in uniformGroups ) {
+
+			const groupSnippets = uniformGroups[ name ];
+
+			output += this._getGLSLUniformStruct( shaderStage + '_' + name, groupSnippets.join( '\n' ) ) + '\n';
+
+		}
+
+		output += bindingSnippets.join( '\n' );
+
+		return output;
+
+	}
+
+	getTypeFromAttribute( attribute ) {
+
+		let nodeType = super.getTypeFromAttribute( attribute );
+
+		if ( /^[iu]/.test( nodeType ) && attribute.gpuType !== IntType ) {
+
+			let dataAttribute = attribute;
+
+			if ( attribute.isInterleavedBufferAttribute ) dataAttribute = attribute.data;
+
+			const array = dataAttribute.array;
+
+			if ( ( array instanceof Uint32Array || array instanceof Int32Array || array instanceof Uint16Array || array instanceof Int16Array ) === false ) {
+
+				nodeType = nodeType.slice( 1 );
+
+			}
+
+		}
+
+		return nodeType;
+
+	}
+
+	getAttributes( shaderStage ) {
+
+		let snippet = '';
+
+		if ( shaderStage === 'vertex' || shaderStage === 'compute' ) {
+
+			const attributes = this.getAttributesArray();
+
+			let location = 0;
+
+			for ( const attribute of attributes ) {
+
+				snippet += `layout( location = ${ location ++ } ) in ${ attribute.type } ${ attribute.name };\n`;
+
+			}
+
+		}
+
+		return snippet;
+
+	}
+
+	getStructMembers( struct ) {
+
+		const snippets = [];
+		const members = struct.getMemberTypes();
+
+		for ( let i = 0; i < members.length; i ++ ) {
+
+			const member = members[ i ];
+			snippets.push( `layout( location = ${i} ) out ${ member} m${i};` );
+
+		}
+
+		return snippets.join( '\n' );
+
+	}
+
+	getStructs( shaderStage ) {
+
+		const snippets = [];
+		const structs = this.structs[ shaderStage ];
+
+		if ( structs.length === 0 ) {
+
+			return 'layout( location = 0 ) out vec4 fragColor;\n';
+
+		}
+
+		for ( let index = 0, length = structs.length; index < length; index ++ ) {
+
+			const struct = structs[ index ];
+
+			let snippet = '\n';
+			snippet += this.getStructMembers( struct );
+			snippet += '\n';
+
+			snippets.push( snippet );
+
+		}
+
+		return snippets.join( '\n\n' );
+
+	}
+
+	getVaryings( shaderStage ) {
+
+		let snippet = '';
+
+		const varyings = this.varyings;
+
+		if ( shaderStage === 'vertex' || shaderStage === 'compute' ) {
+
+			for ( const varying of varyings ) {
+
+				if ( shaderStage === 'compute' ) varying.needsInterpolation = true;
+				const type = varying.type;
+				const flat = type === 'int' || type === 'uint' ? 'flat ' : '';
+
+				snippet += `${flat}${varying.needsInterpolation ? 'out' : '/*out*/'} ${type} ${varying.name};\n`;
+
+			}
+
+		} else if ( shaderStage === 'fragment' ) {
+
+			for ( const varying of varyings ) {
+
+				if ( varying.needsInterpolation ) {
+
+					const type = varying.type;
+					const flat = type === 'int' || type === 'uint' ? 'flat ' : '';
+
+					snippet += `${flat}in ${type} ${varying.name};\n`;
+
+				}
+
+			}
+
+		}
+
+		return snippet;
+
+	}
+
+	getVertexIndex() {
+
+		return 'uint( gl_VertexID )';
+
+	}
+
+	getInstanceIndex() {
+
+		return 'uint( gl_InstanceID )';
+
+	}
+
+	getFrontFacing() {
+
+		return 'gl_FrontFacing';
+
+	}
+
+	getFragCoord() {
+
+		return 'gl_FragCoord';
+
+	}
+
+	getFragDepth() {
+
+		return 'gl_FragDepth';
+
+	}
+
+	isAvailable( name ) {
+
+		return supports[ name ] === true;
+
+	}
+
+	isFlipY() {
+
+		return true;
+
+	}
+
+	registerTransform( varyingName, attributeNode ) {
+
+		this.transforms.push( { varyingName, attributeNode } );
+
+	}
+
+	getTransforms( /* shaderStage  */ ) {
+
+		const transforms = this.transforms;
+
+		let snippet = '';
+
+		for ( let i = 0; i < transforms.length; i ++ ) {
+
+			const transform = transforms[ i ];
+
+			const attributeName = this.getPropertyName( transform.attributeNode );
+
+			snippet += `${ transform.varyingName } = ${ attributeName };\n\t`;
+
+		}
+
+		return snippet;
+
+	}
+
+	_getGLSLUniformStruct( name, vars ) {
+
+		return `
+layout( std140 ) uniform ${name} {
+${vars}
+};`;
+
+	}
+
+	_getGLSLVertexCode( shaderData ) {
+
+		return `#version 300 es
+
+${ this.getSignature() }
+
+// precision
+${ defaultPrecisions }
+
+// uniforms
+${shaderData.uniforms}
+
+// varyings
+${shaderData.varyings}
+
+// attributes
+${shaderData.attributes}
+
+// codes
+${shaderData.codes}
+
+void main() {
+
+	// vars
+	${shaderData.vars}
+
+	// transforms
+	${shaderData.transforms}
+
+	// flow
+	${shaderData.flow}
+
+	gl_PointSize = 1.0;
+
+}
+`;
+
+	}
+
+	_getGLSLFragmentCode( shaderData ) {
+
+		return `#version 300 es
+
+${ this.getSignature() }
+
+// precision
+${ defaultPrecisions }
+
+// uniforms
+${shaderData.uniforms}
+
+// varyings
+${shaderData.varyings}
+
+// codes
+${shaderData.codes}
+
+${shaderData.structs}
+
+void main() {
+
+	// vars
+	${shaderData.vars}
+
+	// flow
+	${shaderData.flow}
+
+}
+`;
+
+	}
+
+	buildCode() {
+
+		const shadersData = this.material !== null ? { fragment: {}, vertex: {} } : { compute: {} };
+
+		for ( const shaderStage in shadersData ) {
+
+			let flow = '// code\n\n';
+			flow += this.flowCode[ shaderStage ];
+
+			const flowNodes = this.flowNodes[ shaderStage ];
+			const mainNode = flowNodes[ flowNodes.length - 1 ];
+
+			for ( const node of flowNodes ) {
+
+				const flowSlotData = this.getFlowData( node/*, shaderStage*/ );
+				const slotName = node.name;
+
+				if ( slotName ) {
+
+					if ( flow.length > 0 ) flow += '\n';
+
+					flow += `\t// flow -> ${ slotName }\n\t`;
+
+				}
+
+				flow += `${ flowSlotData.code }\n\t`;
+
+				if ( node === mainNode && shaderStage !== 'compute' ) {
+
+					flow += '// result\n\t';
+
+					if ( shaderStage === 'vertex' ) {
+
+						flow += 'gl_Position = ';
+						flow += `${ flowSlotData.result };`;
+
+					} else if ( shaderStage === 'fragment' ) {
+
+						if ( ! node.outputNode.isOutputStructNode ) {
+
+							flow += 'fragColor = ';
+							flow += `${ flowSlotData.result };`;
+
+						}
+
+					}
+
+				}
+
+			}
+
+			const stageData = shadersData[ shaderStage ];
+
+			stageData.uniforms = this.getUniforms( shaderStage );
+			stageData.attributes = this.getAttributes( shaderStage );
+			stageData.varyings = this.getVaryings( shaderStage );
+			stageData.vars = this.getVars( shaderStage );
+			stageData.structs = this.getStructs( shaderStage );
+			stageData.codes = this.getCodes( shaderStage );
+			stageData.transforms = this.getTransforms( shaderStage );
+			stageData.flow = flow;
+
+		}
+
+		if ( this.material !== null ) {
+
+			this.vertexShader = this._getGLSLVertexCode( shadersData.vertex );
+			this.fragmentShader = this._getGLSLFragmentCode( shadersData.fragment );
+
+		} else {
+
+			this.computeShader = this._getGLSLVertexCode( shadersData.compute );
+
+		}
+
+	}
+
+	getUniformFromNode( node, type, shaderStage, name = null ) {
+
+		const uniformNode = super.getUniformFromNode( node, type, shaderStage, name );
+		const nodeData = this.getDataFromNode( node, shaderStage, this.globalCache );
+
+		let uniformGPU = nodeData.uniformGPU;
+
+		if ( uniformGPU === undefined ) {
+
+			if ( type === 'texture' ) {
+
+				uniformGPU = new NodeSampledTexture( uniformNode.name, uniformNode.node );
+
+				this.bindings[ shaderStage ].push( uniformGPU );
+
+			} else if ( type === 'cubeTexture' ) {
+
+				uniformGPU = new NodeSampledCubeTexture( uniformNode.name, uniformNode.node );
+
+				this.bindings[ shaderStage ].push( uniformGPU );
+
+			} else if ( type === 'buffer' ) {
+
+				node.name = `NodeBuffer_${ node.id }`;
+				uniformNode.name = `buffer${ node.id }`;
+
+				const buffer = new NodeUniformBuffer( node );
+				buffer.name = node.name;
+
+				this.bindings[ shaderStage ].push( buffer );
+
+				uniformGPU = buffer;
+
+			} else {
+
+				const group = node.groupNode;
+				const groupName = group.name;
+
+				const uniformsStage = this.uniformGroups[ shaderStage ] || ( this.uniformGroups[ shaderStage ] = {} );
+
+				let uniformsGroup = uniformsStage[ groupName ];
+
+				if ( uniformsGroup === undefined ) {
+
+					uniformsGroup = new NodeUniformsGroup( shaderStage + '_' + groupName, group );
+					//uniformsGroup.setVisibility( gpuShaderStageLib[ shaderStage ] );
+
+					uniformsStage[ groupName ] = uniformsGroup;
+
+					this.bindings[ shaderStage ].push( uniformsGroup );
+
+				}
+
+				uniformGPU = this.getNodeUniform( uniformNode, type );
+
+				uniformsGroup.addUniform( uniformGPU );
+
+			}
+
+			nodeData.uniformGPU = uniformGPU;
+
+		}
+
+		return uniformNode;
+
+	}
+
+}
+
+export default GLSLNodeBuilder;

public/sdk/three/jsm/renderers/webgl/utils/WebGLAttributeUtils.js

@@ -0,0 +1,258 @@
+import { IntType } from 'three';
+
+let _id = 0;
+
+class DualAttributeData {
+
+	constructor( attributeData, dualBuffer ) {
+
+		this.buffers = [ attributeData.bufferGPU, dualBuffer ];
+		this.type = attributeData.type;
+		this.bufferType = attributeData.bufferType;
+		this.pbo = attributeData.pbo;
+		this.byteLength = attributeData.byteLength;
+		this.bytesPerElement = attributeData.BYTES_PER_ELEMENT;
+		this.version = attributeData.version;
+		this.isInteger = attributeData.isInteger;
+		this.activeBufferIndex = 0;
+		this.baseId = attributeData.id;
+
+	}
+
+
+	get id() {
+
+		return `${ this.baseId }|${ this.activeBufferIndex }`;
+
+	}
+
+	get bufferGPU() {
+
+		return this.buffers[ this.activeBufferIndex ];
+
+	}
+
+	get transformBuffer() {
+
+		return this.buffers[ this.activeBufferIndex ^ 1 ];
+
+	}
+
+	switchBuffers() {
+
+		this.activeBufferIndex ^= 1;
+
+	}
+
+}
+
+class WebGLAttributeUtils {
+
+	constructor( backend ) {
+
+		this.backend = backend;
+
+	}
+
+	createAttribute( attribute, bufferType ) {
+
+		const backend = this.backend;
+		const { gl } = backend;
+
+		const array = attribute.array;
+		const usage = attribute.usage || gl.STATIC_DRAW;
+
+		const bufferAttribute = attribute.isInterleavedBufferAttribute ? attribute.data : attribute;
+		const bufferData = backend.get( bufferAttribute );
+
+		let bufferGPU = bufferData.bufferGPU;
+
+		if ( bufferGPU === undefined ) {
+
+			bufferGPU = this._createBuffer( gl, bufferType, array, usage );
+
+			bufferData.bufferGPU = bufferGPU;
+			bufferData.bufferType = bufferType;
+			bufferData.version = bufferAttribute.version;
+
+		}
+
+		//attribute.onUploadCallback();
+
+		let type;
+
+		if ( array instanceof Float32Array ) {
+
+			type = gl.FLOAT;
+
+		} else if ( array instanceof Uint16Array ) {
+
+			if ( attribute.isFloat16BufferAttribute ) {
+
+				type = gl.HALF_FLOAT;
+
+			} else {
+
+				type = gl.UNSIGNED_SHORT;
+
+			}
+
+		} else if ( array instanceof Int16Array ) {
+
+			type = gl.SHORT;
+
+		} else if ( array instanceof Uint32Array ) {
+
+			type = gl.UNSIGNED_INT;
+
+		} else if ( array instanceof Int32Array ) {
+
+			type = gl.INT;
+
+		} else if ( array instanceof Int8Array ) {
+
+			type = gl.BYTE;
+
+		} else if ( array instanceof Uint8Array ) {
+
+			type = gl.UNSIGNED_BYTE;
+
+		} else if ( array instanceof Uint8ClampedArray ) {
+
+			type = gl.UNSIGNED_BYTE;
+
+		} else {
+
+			throw new Error( 'THREE.WebGLBackend: Unsupported buffer data format: ' + array );
+
+		}
+
+		let attributeData = {
+			bufferGPU,
+			bufferType,
+			type,
+			byteLength: array.byteLength,
+			bytesPerElement: array.BYTES_PER_ELEMENT,
+			version: attribute.version,
+			pbo: attribute.pbo,
+			isInteger: type === gl.INT || type === gl.UNSIGNED_INT || type === gl.UNSIGNED_SHORT || attribute.gpuType === IntType,
+			id: _id ++
+		};
+
+		if ( attribute.isStorageBufferAttribute || attribute.isStorageInstancedBufferAttribute ) {
+
+			// create buffer for tranform feedback use
+			const bufferGPUDual = this._createBuffer( gl, bufferType, array, usage );
+			attributeData = new DualAttributeData( attributeData, bufferGPUDual );
+
+		}
+
+		backend.set( attribute, attributeData );
+
+	}
+
+	updateAttribute( attribute ) {
+
+		const backend = this.backend;
+		const { gl } = backend;
+
+		const array = attribute.array;
+		const bufferAttribute = attribute.isInterleavedBufferAttribute ? attribute.data : attribute;
+		const bufferData = backend.get( bufferAttribute );
+		const bufferType = bufferData.bufferType;
+		const updateRanges = attribute.isInterleavedBufferAttribute ? attribute.data.updateRanges : attribute.updateRanges;
+
+		gl.bindBuffer( bufferType, bufferData.bufferGPU );
+
+		if ( updateRanges.length === 0 ) {
+
+			// Not using update ranges
+
+			gl.bufferSubData( bufferType, 0, array );
+
+		} else {
+
+			for ( let i = 0, l = updateRanges.length; i < l; i ++ ) {
+
+				const range = updateRanges[ i ];
+				gl.bufferSubData( bufferType, range.start * array.BYTES_PER_ELEMENT,
+					array, range.start, range.count );
+
+			}
+
+			bufferAttribute.clearUpdateRanges();
+
+		}
+
+		gl.bindBuffer( bufferType, null );
+
+		bufferData.version = bufferAttribute.version;
+
+	}
+
+	destroyAttribute( attribute ) {
+
+		const backend = this.backend;
+		const { gl } = backend;
+
+		if ( attribute.isInterleavedBufferAttribute ) {
+
+			backend.delete( attribute.data );
+
+		}
+
+		const attributeData = backend.get( attribute );
+
+		gl.deleteBuffer( attributeData.bufferGPU );
+
+		backend.delete( attribute );
+
+	}
+
+	async getArrayBufferAsync( attribute ) {
+
+		const backend = this.backend;
+		const { gl } = backend;
+
+		const bufferAttribute = attribute.isInterleavedBufferAttribute ? attribute.data : attribute;
+		const { bufferGPU } = backend.get( bufferAttribute );
+
+		const array = attribute.array;
+		const byteLength = array.byteLength;
+
+		gl.bindBuffer( gl.COPY_READ_BUFFER, bufferGPU );
+
+		const writeBuffer = gl.createBuffer();
+
+		gl.bindBuffer( gl.COPY_WRITE_BUFFER, writeBuffer );
+		gl.bufferData( gl.COPY_WRITE_BUFFER, byteLength, gl.STREAM_READ );
+
+		gl.copyBufferSubData( gl.COPY_READ_BUFFER, gl.COPY_WRITE_BUFFER, 0, 0, byteLength );
+
+		await backend.utils._clientWaitAsync();
+
+		const dstBuffer = new attribute.array.constructor( array.length );
+
+		gl.getBufferSubData( gl.COPY_WRITE_BUFFER, 0, dstBuffer );
+
+		gl.deleteBuffer( writeBuffer );
+
+		return dstBuffer.buffer;
+
+	}
+
+	_createBuffer( gl, bufferType, array, usage ) {
+
+		const bufferGPU = gl.createBuffer();
+
+		gl.bindBuffer( bufferType, bufferGPU );
+		gl.bufferData( bufferType, array, usage );
+		gl.bindBuffer( bufferType, null );
+
+		return bufferGPU;
+
+	}
+
+}
+
+export default WebGLAttributeUtils;

public/sdk/three/jsm/renderers/webgl/utils/WebGLCapabilities.js

@@ -0,0 +1,36 @@
+class WebGLCapabilities {
+
+	constructor( backend ) {
+
+		this.backend = backend;
+
+		this.maxAnisotropy = null;
+
+	}
+
+	getMaxAnisotropy() {
+
+		if ( this.maxAnisotropy !== null ) return this.maxAnisotropy;
+
+		const gl = this.backend.gl;
+		const extensions = this.backend.extensions;
+
+		if ( extensions.has( 'EXT_texture_filter_anisotropic' ) === true ) {
+
+			const extension = extensions.get( 'EXT_texture_filter_anisotropic' );
+
+			this.maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );
+
+		} else {
+
+			this.maxAnisotropy = 0;
+
+		}
+
+		return this.maxAnisotropy;
+
+	}
+
+}
+
+export default WebGLCapabilities;

public/sdk/three/jsm/renderers/webgl/utils/WebGLConstants.js

@@ -0,0 +1,12 @@
+export const GLFeatureName = {
+
+	'WEBGL_compressed_texture_astc': 'texture-compression-astc',
+	'WEBGL_compressed_texture_etc': 'texture-compression-etc2',
+	'WEBGL_compressed_texture_etc1': 'texture-compression-etc1',
+	'WEBGL_compressed_texture_pvrtc': 'texture-compression-pvrtc',
+	'WEBKIT_WEBGL_compressed_texture_pvrtc': 'texture-compression-pvrtc',
+	'WEBGL_compressed_texture_s3tc': 'texture-compression-bc',
+	'EXT_texture_compression_bptc': 'texture-compression-bptc',
+	'EXT_disjoint_timer_query_webgl2': 'timestamp-query',
+
+};

public/sdk/three/jsm/renderers/webgl/utils/WebGLExtensions.js

@@ -0,0 +1,36 @@
+class WebGLExtensions {
+
+	constructor( backend ) {
+
+		this.backend = backend;
+
+		this.gl = this.backend.gl;
+		this.availableExtensions = this.gl.getSupportedExtensions();
+
+		this.extensions = {};
+
+	}
+
+	get( name ) {
+
+		let extension = this.extensions[ name ];
+
+		if ( extension === undefined ) {
+
+			extension = this.gl.getExtension( name );
+
+		}
+
+		return extension;
+
+	}
+
+	has( name ) {
+
+		return this.availableExtensions.includes( name );
+
+	}
+
+}
+
+export default WebGLExtensions;

public/sdk/three/jsm/renderers/webgl/utils/WebGLState.js

@@ -0,0 +1,738 @@
+import {
+	CullFaceNone, CullFaceBack, CullFaceFront, DoubleSide, BackSide,
+	NormalBlending, NoBlending, CustomBlending, AddEquation,
+	AdditiveBlending, SubtractiveBlending, MultiplyBlending, SubtractEquation, ReverseSubtractEquation,
+	ZeroFactor, OneFactor, SrcColorFactor, SrcAlphaFactor, SrcAlphaSaturateFactor, DstColorFactor, DstAlphaFactor,
+	OneMinusSrcColorFactor, OneMinusSrcAlphaFactor, OneMinusDstColorFactor, OneMinusDstAlphaFactor,
+	NeverDepth, AlwaysDepth, LessDepth, LessEqualDepth, EqualDepth, GreaterEqualDepth, GreaterDepth, NotEqualDepth
+} from 'three';
+
+let initialized = false, equationToGL, factorToGL;
+
+class WebGLState {
+
+	constructor( backend ) {
+
+		this.backend = backend;
+
+		this.gl = this.backend.gl;
+
+		this.enabled = {};
+		this.currentFlipSided = null;
+		this.currentCullFace = null;
+		this.currentProgram = null;
+		this.currentBlendingEnabled = false;
+		this.currentBlending = null;
+		this.currentBlendSrc = null;
+		this.currentBlendDst = null;
+		this.currentBlendSrcAlpha = null;
+		this.currentBlendDstAlpha = null;
+		this.currentPremultipledAlpha = null;
+		this.currentPolygonOffsetFactor = null;
+		this.currentPolygonOffsetUnits = null;
+		this.currentColorMask = null;
+		this.currentDepthFunc = null;
+		this.currentDepthMask = null;
+		this.currentStencilFunc = null;
+		this.currentStencilRef = null;
+		this.currentStencilFuncMask = null;
+		this.currentStencilFail = null;
+		this.currentStencilZFail = null;
+		this.currentStencilZPass = null;
+		this.currentStencilMask = null;
+		this.currentLineWidth = null;
+
+		this.currentBoundFramebuffers = {};
+		this.currentDrawbuffers = new WeakMap();
+
+		this.maxTextures = this.gl.getParameter( this.gl.MAX_TEXTURE_IMAGE_UNITS );
+		this.currentTextureSlot = null;
+		this.currentBoundTextures = {};
+
+		if ( initialized === false ) {
+
+			this._init( this.gl );
+
+			initialized = true;
+
+		}
+
+	}
+
+	_init( gl ) {
+
+		// Store only WebGL constants here.
+
+		equationToGL = {
+			[ AddEquation ]: gl.FUNC_ADD,
+			[ SubtractEquation ]: gl.FUNC_SUBTRACT,
+			[ ReverseSubtractEquation ]: gl.FUNC_REVERSE_SUBTRACT
+		};
+
+		factorToGL = {
+			[ ZeroFactor ]: gl.ZERO,
+			[ OneFactor ]: gl.ONE,
+			[ SrcColorFactor ]: gl.SRC_COLOR,
+			[ SrcAlphaFactor ]: gl.SRC_ALPHA,
+			[ SrcAlphaSaturateFactor ]: gl.SRC_ALPHA_SATURATE,
+			[ DstColorFactor ]: gl.DST_COLOR,
+			[ DstAlphaFactor ]: gl.DST_ALPHA,
+			[ OneMinusSrcColorFactor ]: gl.ONE_MINUS_SRC_COLOR,
+			[ OneMinusSrcAlphaFactor ]: gl.ONE_MINUS_SRC_ALPHA,
+			[ OneMinusDstColorFactor ]: gl.ONE_MINUS_DST_COLOR,
+			[ OneMinusDstAlphaFactor ]: gl.ONE_MINUS_DST_ALPHA
+		};
+
+	}
+
+	enable( id ) {
+
+		const { enabled } = this;
+
+		if ( enabled[ id ] !== true ) {
+
+			this.gl.enable( id );
+			enabled[ id ] = true;
+
+		}
+
+	}
+
+	disable( id ) {
+
+		const { enabled } = this;
+
+		if ( enabled[ id ] !== false ) {
+
+			this.gl.disable( id );
+			enabled[ id ] = false;
+
+		}
+
+	}
+
+	setFlipSided( flipSided ) {
+
+		if ( this.currentFlipSided !== flipSided ) {
+
+			const { gl } = this;
+
+			if ( flipSided ) {
+
+				gl.frontFace( gl.CW );
+
+			} else {
+
+				gl.frontFace( gl.CCW );
+
+			}
+
+			this.currentFlipSided = flipSided;
+
+		}
+
+	}
+
+	setCullFace( cullFace ) {
+
+		const { gl } = this;
+
+		if ( cullFace !== CullFaceNone ) {
+
+			this.enable( gl.CULL_FACE );
+
+			if ( cullFace !== this.currentCullFace ) {
+
+				if ( cullFace === CullFaceBack ) {
+
+					gl.cullFace( gl.BACK );
+
+				} else if ( cullFace === CullFaceFront ) {
+
+					gl.cullFace( gl.FRONT );
+
+				} else {
+
+					gl.cullFace( gl.FRONT_AND_BACK );
+
+				}
+
+			}
+
+		} else {
+
+			this.disable( gl.CULL_FACE );
+
+		}
+
+		this.currentCullFace = cullFace;
+
+	}
+
+	setLineWidth( width ) {
+
+		const { currentLineWidth, gl } = this;
+
+		if ( width !== currentLineWidth ) {
+
+			gl.lineWidth( width );
+
+			this.currentLineWidth = width;
+
+		}
+
+	}
+
+
+	setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) {
+
+		const { gl } = this;
+
+		if ( blending === NoBlending ) {
+
+			if ( this.currentBlendingEnabled === true ) {
+
+				this.disable( gl.BLEND );
+				this.currentBlendingEnabled = false;
+
+			}
+
+			return;
+
+		}
+
+		if ( this.currentBlendingEnabled === false ) {
+
+			this.enable( gl.BLEND );
+			this.currentBlendingEnabled = true;
+
+		}
+
+		if ( blending !== CustomBlending ) {
+
+			if ( blending !== this.currentBlending || premultipliedAlpha !== this.currentPremultipledAlpha ) {
+
+				if ( this.currentBlendEquation !== AddEquation || this.currentBlendEquationAlpha !== AddEquation ) {
+
+					gl.blendEquation( gl.FUNC_ADD );
+
+					this.currentBlendEquation = AddEquation;
+					this.currentBlendEquationAlpha = AddEquation;
+
+				}
+
+				if ( premultipliedAlpha ) {
+
+					switch ( blending ) {
+
+						case NormalBlending:
+							gl.blendFuncSeparate( gl.ONE, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );
+							break;
+
+						case AdditiveBlending:
+							gl.blendFunc( gl.ONE, gl.ONE );
+							break;
+
+						case SubtractiveBlending:
+							gl.blendFuncSeparate( gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ZERO, gl.ONE );
+							break;
+
+						case MultiplyBlending:
+							gl.blendFuncSeparate( gl.ZERO, gl.SRC_COLOR, gl.ZERO, gl.SRC_ALPHA );
+							break;
+
+						default:
+							console.error( 'THREE.WebGLState: Invalid blending: ', blending );
+							break;
+
+					}
+
+				} else {
+
+					switch ( blending ) {
+
+						case NormalBlending:
+							gl.blendFuncSeparate( gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );
+							break;
+
+						case AdditiveBlending:
+							gl.blendFunc( gl.SRC_ALPHA, gl.ONE );
+							break;
+
+						case SubtractiveBlending:
+							gl.blendFuncSeparate( gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ZERO, gl.ONE );
+							break;
+
+						case MultiplyBlending:
+							gl.blendFunc( gl.ZERO, gl.SRC_COLOR );
+							break;
+
+						default:
+							console.error( 'THREE.WebGLState: Invalid blending: ', blending );
+							break;
+
+					}
+
+				}
+
+				this.currentBlendSrc = null;
+				this.currentBlendDst = null;
+				this.currentBlendSrcAlpha = null;
+				this.currentBlendDstAlpha = null;
+
+				this.currentBlending = blending;
+				this.currentPremultipledAlpha = premultipliedAlpha;
+
+			}
+
+			return;
+
+		}
+
+		// custom blending
+
+		blendEquationAlpha = blendEquationAlpha || blendEquation;
+		blendSrcAlpha = blendSrcAlpha || blendSrc;
+		blendDstAlpha = blendDstAlpha || blendDst;
+
+		if ( blendEquation !== this.currentBlendEquation || blendEquationAlpha !== this.currentBlendEquationAlpha ) {
+
+			gl.blendEquationSeparate( equationToGL[ blendEquation ], equationToGL[ blendEquationAlpha ] );
+
+			this.currentBlendEquation = blendEquation;
+			this.currentBlendEquationAlpha = blendEquationAlpha;
+
+		}
+
+		if ( blendSrc !== this.currentBlendSrc || blendDst !== this.currentBlendDst || blendSrcAlpha !== this.currentBlendSrcAlpha || blendDstAlpha !== this.currentBlendDstAlpha ) {
+
+			gl.blendFuncSeparate( factorToGL[ blendSrc ], factorToGL[ blendDst ], factorToGL[ blendSrcAlpha ], factorToGL[ blendDstAlpha ] );
+
+			this.currentBlendSrc = blendSrc;
+			this.currentBlendDst = blendDst;
+			this.currentBlendSrcAlpha = blendSrcAlpha;
+			this.currentBlendDstAlpha = blendDstAlpha;
+
+		}
+
+		this.currentBlending = blending;
+		this.currentPremultipledAlpha = false;
+
+	}
+
+	setColorMask( colorMask ) {
+
+		if ( this.currentColorMask !== colorMask ) {
+
+			this.gl.colorMask( colorMask, colorMask, colorMask, colorMask );
+			this.currentColorMask = colorMask;
+
+		}
+
+	}
+
+	setDepthTest( depthTest ) {
+
+		const { gl } = this;
+
+		if ( depthTest ) {
+
+			this.enable( gl.DEPTH_TEST );
+
+		} else {
+
+			this.disable( gl.DEPTH_TEST );
+
+		}
+
+	}
+
+	setDepthMask( depthMask ) {
+
+		if ( this.currentDepthMask !== depthMask ) {
+
+			this.gl.depthMask( depthMask );
+			this.currentDepthMask = depthMask;
+
+		}
+
+	}
+
+	setDepthFunc( depthFunc ) {
+
+		if ( this.currentDepthFunc !== depthFunc ) {
+
+			const { gl } = this;
+
+			switch ( depthFunc ) {
+
+				case NeverDepth:
+
+					gl.depthFunc( gl.NEVER );
+					break;
+
+				case AlwaysDepth:
+
+					gl.depthFunc( gl.ALWAYS );
+					break;
+
+				case LessDepth:
+
+					gl.depthFunc( gl.LESS );
+					break;
+
+				case LessEqualDepth:
+
+					gl.depthFunc( gl.LEQUAL );
+					break;
+
+				case EqualDepth:
+
+					gl.depthFunc( gl.EQUAL );
+					break;
+
+				case GreaterEqualDepth:
+
+					gl.depthFunc( gl.GEQUAL );
+					break;
+
+				case GreaterDepth:
+
+					gl.depthFunc( gl.GREATER );
+					break;
+
+				case NotEqualDepth:
+
+					gl.depthFunc( gl.NOTEQUAL );
+					break;
+
+				default:
+
+					gl.depthFunc( gl.LEQUAL );
+
+			}
+
+			this.currentDepthFunc = depthFunc;
+
+		}
+
+	}
+
+	setStencilTest( stencilTest ) {
+
+		const { gl } = this;
+
+		if ( stencilTest ) {
+
+			this.enable( gl.STENCIL_TEST );
+
+		} else {
+
+			this.disable( gl.STENCIL_TEST );
+
+		}
+
+	}
+
+	setStencilMask( stencilMask ) {
+
+		if ( this.currentStencilMask !== stencilMask ) {
+
+			this.gl.stencilMask( stencilMask );
+			this.currentStencilMask = stencilMask;
+
+		}
+
+	}
+
+	setStencilFunc( stencilFunc, stencilRef, stencilMask ) {
+
+		if ( this.currentStencilFunc !== stencilFunc ||
+			 this.currentStencilRef !== stencilRef ||
+			 this.currentStencilFuncMask !== stencilMask ) {
+
+			this.gl.stencilFunc( stencilFunc, stencilRef, stencilMask );
+
+			this.currentStencilFunc = stencilFunc;
+			this.currentStencilRef = stencilRef;
+			this.currentStencilFuncMask = stencilMask;
+
+		}
+
+	}
+
+	setStencilOp( stencilFail, stencilZFail, stencilZPass ) {
+
+		if ( this.currentStencilFail !== stencilFail ||
+			 this.currentStencilZFail !== stencilZFail ||
+			 this.currentStencilZPass !== stencilZPass ) {
+
+			this.gl.stencilOp( stencilFail, stencilZFail, stencilZPass );
+
+			this.currentStencilFail = stencilFail;
+			this.currentStencilZFail = stencilZFail;
+			this.currentStencilZPass = stencilZPass;
+
+		}
+
+	}
+
+	setMaterial( material, frontFaceCW ) {
+
+		const { gl } = this;
+
+		material.side === DoubleSide
+			? this.disable( gl.CULL_FACE )
+			: this.enable( gl.CULL_FACE );
+
+		let flipSided = ( material.side === BackSide );
+		if ( frontFaceCW ) flipSided = ! flipSided;
+
+		this.setFlipSided( flipSided );
+
+		( material.blending === NormalBlending && material.transparent === false )
+			? this.setBlending( NoBlending )
+			: this.setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha );
+
+		this.setDepthFunc( material.depthFunc );
+		this.setDepthTest( material.depthTest );
+		this.setDepthMask( material.depthWrite );
+		this.setColorMask( material.colorWrite );
+
+		const stencilWrite = material.stencilWrite;
+		this.setStencilTest( stencilWrite );
+		if ( stencilWrite ) {
+
+			this.setStencilMask( material.stencilWriteMask );
+			this.setStencilFunc( material.stencilFunc, material.stencilRef, material.stencilFuncMask );
+			this.setStencilOp( material.stencilFail, material.stencilZFail, material.stencilZPass );
+
+		}
+
+		this.setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits );
+
+		material.alphaToCoverage === true
+			? this.enable( gl.SAMPLE_ALPHA_TO_COVERAGE )
+			: this.disable( gl.SAMPLE_ALPHA_TO_COVERAGE );
+
+	}
+
+	setPolygonOffset( polygonOffset, factor, units ) {
+
+		const { gl } = this;
+
+		if ( polygonOffset ) {
+
+			this.enable( gl.POLYGON_OFFSET_FILL );
+
+			if ( this.currentPolygonOffsetFactor !== factor || this.currentPolygonOffsetUnits !== units ) {
+
+				gl.polygonOffset( factor, units );
+
+				this.currentPolygonOffsetFactor = factor;
+				this.currentPolygonOffsetUnits = units;
+
+			}
+
+		} else {
+
+			this.disable( gl.POLYGON_OFFSET_FILL );
+
+		}
+
+	}
+
+	useProgram( program ) {
+
+		if ( this.currentProgram !== program ) {
+
+			this.gl.useProgram( program );
+
+			this.currentProgram = program;
+
+			return true;
+
+		}
+
+		return false;
+
+	}
+
+	// framebuffer
+
+
+	bindFramebuffer( target, framebuffer ) {
+
+		const { gl, currentBoundFramebuffers } = this;
+
+		if ( currentBoundFramebuffers[ target ] !== framebuffer ) {
+
+			gl.bindFramebuffer( target, framebuffer );
+
+			currentBoundFramebuffers[ target ] = framebuffer;
+
+			// gl.DRAW_FRAMEBUFFER is equivalent to gl.FRAMEBUFFER
+
+			if ( target === gl.DRAW_FRAMEBUFFER ) {
+
+				currentBoundFramebuffers[ gl.FRAMEBUFFER ] = framebuffer;
+
+			}
+
+			if ( target === gl.FRAMEBUFFER ) {
+
+				currentBoundFramebuffers[ gl.DRAW_FRAMEBUFFER ] = framebuffer;
+
+			}
+
+			return true;
+
+		}
+
+		return false;
+
+	}
+
+	drawBuffers( renderContext, framebuffer ) {
+
+		const { gl } = this;
+
+		let drawBuffers = [];
+
+		let needsUpdate = false;
+
+		if ( renderContext.textures !== null ) {
+
+			drawBuffers = this.currentDrawbuffers.get( framebuffer );
+
+			if ( drawBuffers === undefined ) {
+
+				drawBuffers = [];
+				this.currentDrawbuffers.set( framebuffer, drawBuffers );
+
+			}
+
+
+			const textures = renderContext.textures;
+
+			if ( drawBuffers.length !== textures.length || drawBuffers[ 0 ] !== gl.COLOR_ATTACHMENT0 ) {
+
+				for ( let i = 0, il = textures.length; i < il; i ++ ) {
+
+					drawBuffers[ i ] = gl.COLOR_ATTACHMENT0 + i;
+
+				}
+
+				drawBuffers.length = textures.length;
+
+				needsUpdate = true;
+
+			}
+
+
+		} else {
+
+			if ( drawBuffers[ 0 ] !== gl.BACK ) {
+
+				drawBuffers[ 0 ] = gl.BACK;
+
+				needsUpdate = true;
+
+			}
+
+		}
+
+		if ( needsUpdate ) {
+
+			gl.drawBuffers( drawBuffers );
+
+		}
+
+
+	}
+
+
+	// texture
+
+	activeTexture( webglSlot ) {
+
+		const { gl, currentTextureSlot, maxTextures } = this;
+
+		if ( webglSlot === undefined ) webglSlot = gl.TEXTURE0 + maxTextures - 1;
+
+		if ( currentTextureSlot !== webglSlot ) {
+
+			gl.activeTexture( webglSlot );
+			this.currentTextureSlot = webglSlot;
+
+		}
+
+	}
+
+	bindTexture( webglType, webglTexture, webglSlot ) {
+
+		const { gl, currentTextureSlot, currentBoundTextures, maxTextures } = this;
+
+		if ( webglSlot === undefined ) {
+
+			if ( currentTextureSlot === null ) {
+
+				webglSlot = gl.TEXTURE0 + maxTextures - 1;
+
+			} else {
+
+				webglSlot = currentTextureSlot;
+
+			}
+
+		}
+
+		let boundTexture = currentBoundTextures[ webglSlot ];
+
+		if ( boundTexture === undefined ) {
+
+			boundTexture = { type: undefined, texture: undefined };
+			currentBoundTextures[ webglSlot ] = boundTexture;
+
+		}
+
+		if ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) {
+
+			if ( currentTextureSlot !== webglSlot ) {
+
+				gl.activeTexture( webglSlot );
+				this.currentTextureSlot = webglSlot;
+
+			}
+
+			gl.bindTexture( webglType, webglTexture );
+
+			boundTexture.type = webglType;
+			boundTexture.texture = webglTexture;
+
+
+		}
+
+
+	}
+
+	unbindTexture() {
+
+		const { gl, currentTextureSlot, currentBoundTextures } = this;
+
+		const boundTexture = currentBoundTextures[ currentTextureSlot ];
+
+		if ( boundTexture !== undefined && boundTexture.type !== undefined ) {
+
+			gl.bindTexture( boundTexture.type, null );
+
+			boundTexture.type = undefined;
+			boundTexture.texture = undefined;
+
+		}
+
+	}
+
+}
+
+export default WebGLState;

public/sdk/three/jsm/renderers/webgl/utils/WebGLTextureUtils.js

@@ -0,0 +1,751 @@
+import { LinearFilter, LinearMipmapLinearFilter, LinearMipmapNearestFilter, NearestFilter, NearestMipmapLinearFilter, NearestMipmapNearestFilter, FloatType, MirroredRepeatWrapping, ClampToEdgeWrapping, RepeatWrapping, SRGBColorSpace, NeverCompare, AlwaysCompare, LessCompare, LessEqualCompare, EqualCompare, GreaterEqualCompare, GreaterCompare, NotEqualCompare } from 'three';
+
+let initialized = false, wrappingToGL, filterToGL, compareToGL;
+
+class WebGLTextureUtils {
+
+	constructor( backend ) {
+
+		this.backend = backend;
+
+		this.gl = backend.gl;
+		this.extensions = backend.extensions;
+		this.defaultTextures = {};
+
+		if ( initialized === false ) {
+
+			this._init( this.gl );
+
+			initialized = true;
+
+		}
+
+	}
+
+	_init( gl ) {
+
+		// Store only WebGL constants here.
+
+		wrappingToGL = {
+			[ RepeatWrapping ]: gl.REPEAT,
+			[ ClampToEdgeWrapping ]: gl.CLAMP_TO_EDGE,
+			[ MirroredRepeatWrapping ]: gl.MIRRORED_REPEAT
+		};
+
+		filterToGL = {
+			[ NearestFilter ]: gl.NEAREST,
+			[ NearestMipmapNearestFilter ]: gl.NEAREST_MIPMAP_NEAREST,
+			[ NearestMipmapLinearFilter ]: gl.NEAREST_MIPMAP_LINEAR,
+
+			[ LinearFilter ]: gl.LINEAR,
+			[ LinearMipmapNearestFilter ]: gl.LINEAR_MIPMAP_NEAREST,
+			[ LinearMipmapLinearFilter ]: gl.LINEAR_MIPMAP_LINEAR
+		};
+
+		compareToGL = {
+			[ NeverCompare ]: gl.NEVER,
+			[ AlwaysCompare ]: gl.ALWAYS,
+			[ LessCompare ]: gl.LESS,
+			[ LessEqualCompare ]: gl.LEQUAL,
+			[ EqualCompare ]: gl.EQUAL,
+			[ GreaterEqualCompare ]: gl.GEQUAL,
+			[ GreaterCompare ]: gl.GREATER,
+			[ NotEqualCompare ]: gl.NOTEQUAL
+		};
+
+	}
+
+	filterFallback( f ) {
+
+		const { gl } = this;
+
+		if ( f === NearestFilter || f === NearestMipmapNearestFilter || f === NearestMipmapLinearFilter ) {
+
+			return gl.NEAREST;
+
+		}
+
+		return gl.LINEAR;
+
+	}
+
+	getGLTextureType( texture ) {
+
+		const { gl } = this;
+
+		let glTextureType;
+
+		if ( texture.isCubeTexture === true ) {
+
+			glTextureType = gl.TEXTURE_CUBE_MAP;
+
+		} else if ( texture.isDataArrayTexture === true ) {
+
+			glTextureType = gl.TEXTURE_2D_ARRAY;
+
+		} else {
+
+			glTextureType = gl.TEXTURE_2D;
+
+
+		}
+
+		return glTextureType;
+
+	}
+
+	getInternalFormat( internalFormatName, glFormat, glType, colorSpace, forceLinearTransfer = false ) {
+
+		const { gl, extensions } = this;
+
+		if ( internalFormatName !== null ) {
+
+			if ( gl[ internalFormatName ] !== undefined ) return gl[ internalFormatName ];
+
+			console.warn( 'THREE.WebGLRenderer: Attempt to use non-existing WebGL internal format \'' + internalFormatName + '\'' );
+
+		}
+
+		let internalFormat = glFormat;
+
+		if ( glFormat === gl.RED ) {
+
+			if ( glType === gl.FLOAT ) internalFormat = gl.R32F;
+			if ( glType === gl.HALF_FLOAT ) internalFormat = gl.R16F;
+			if ( glType === gl.UNSIGNED_BYTE ) internalFormat = gl.R8;
+
+		}
+
+		if ( glFormat === gl.RED_INTEGER ) {
+
+			if ( glType === gl.UNSIGNED_BYTE ) internalFormat = gl.R8UI;
+			if ( glType === gl.UNSIGNED_SHORT ) internalFormat = gl.R16UI;
+			if ( glType === gl.UNSIGNED_INT ) internalFormat = gl.R32UI;
+			if ( glType === gl.BYTE ) internalFormat = gl.R8I;
+			if ( glType === gl.SHORT ) internalFormat = gl.R16I;
+			if ( glType === gl.INT ) internalFormat = gl.R32I;
+
+		}
+
+		if ( glFormat === gl.RG ) {
+
+			if ( glType === gl.FLOAT ) internalFormat = gl.RG32F;
+			if ( glType === gl.HALF_FLOAT ) internalFormat = gl.RG16F;
+			if ( glType === gl.UNSIGNED_BYTE ) internalFormat = gl.RG8;
+
+		}
+
+		if ( glFormat === gl.RGB ) {
+
+			if ( glType === gl.FLOAT ) internalFormat = gl.RGB32F;
+			if ( glType === gl.HALF_FLOAT ) internalFormat = gl.RGB16F;
+			if ( glType === gl.UNSIGNED_BYTE ) internalFormat = gl.RGB8;
+			if ( glType === gl.UNSIGNED_SHORT_5_6_5 ) internalFormat = gl.RGB565;
+			if ( glType === gl.UNSIGNED_SHORT_5_5_5_1 ) internalFormat = gl.RGB5_A1;
+			if ( glType === gl.UNSIGNED_SHORT_4_4_4_4 ) internalFormat = gl.RGB4;
+			if ( glType === gl.UNSIGNED_INT_5_9_9_9_REV ) internalFormat = gl.RGB9_E5;
+
+		}
+
+		if ( glFormat === gl.RGBA ) {
+
+			if ( glType === gl.FLOAT ) internalFormat = gl.RGBA32F;
+			if ( glType === gl.HALF_FLOAT ) internalFormat = gl.RGBA16F;
+			if ( glType === gl.UNSIGNED_BYTE ) internalFormat = ( colorSpace === SRGBColorSpace && forceLinearTransfer === false ) ? gl.SRGB8_ALPHA8 : gl.RGBA8;
+			if ( glType === gl.UNSIGNED_SHORT_4_4_4_4 ) internalFormat = gl.RGBA4;
+			if ( glType === gl.UNSIGNED_SHORT_5_5_5_1 ) internalFormat = gl.RGB5_A1;
+
+		}
+
+		if ( glFormat === gl.DEPTH_COMPONENT ) {
+
+			if ( glType === gl.UNSIGNED_INT ) internalFormat = gl.DEPTH24_STENCIL8;
+			if ( glType === gl.FLOAT ) internalFormat = gl.DEPTH_COMPONENT32F;
+
+		}
+
+		if ( glFormat === gl.DEPTH_STENCIL ) {
+
+			if ( glType === gl.UNSIGNED_INT_24_8 ) internalFormat = gl.DEPTH24_STENCIL8;
+
+		}
+
+		if ( internalFormat === gl.R16F || internalFormat === gl.R32F ||
+			internalFormat === gl.RG16F || internalFormat === gl.RG32F ||
+			internalFormat === gl.RGBA16F || internalFormat === gl.RGBA32F ) {
+
+			extensions.get( 'EXT_color_buffer_float' );
+
+		}
+
+		return internalFormat;
+
+	}
+
+	setTextureParameters( textureType, texture ) {
+
+		const { gl, extensions, backend } = this;
+
+		const { currentAnisotropy } = backend.get( texture );
+
+		gl.texParameteri( textureType, gl.TEXTURE_WRAP_S, wrappingToGL[ texture.wrapS ] );
+		gl.texParameteri( textureType, gl.TEXTURE_WRAP_T, wrappingToGL[ texture.wrapT ] );
+
+		if ( textureType === gl.TEXTURE_3D || textureType === gl.TEXTURE_2D_ARRAY ) {
+
+			gl.texParameteri( textureType, gl.TEXTURE_WRAP_R, wrappingToGL[ texture.wrapR ] );
+
+		}
+
+		gl.texParameteri( textureType, gl.TEXTURE_MAG_FILTER, filterToGL[ texture.magFilter ] );
+
+
+		// follow WebGPU backend mapping for texture filtering
+		const minFilter = ! texture.isVideoTexture && texture.minFilter === LinearFilter ? LinearMipmapLinearFilter : texture.minFilter;
+
+		gl.texParameteri( textureType, gl.TEXTURE_MIN_FILTER, filterToGL[ minFilter ] );
+
+		if ( texture.compareFunction ) {
+
+			gl.texParameteri( textureType, gl.TEXTURE_COMPARE_MODE, gl.COMPARE_REF_TO_TEXTURE );
+			gl.texParameteri( textureType, gl.TEXTURE_COMPARE_FUNC, compareToGL[ texture.compareFunction ] );
+
+		}
+
+		if ( extensions.has( 'EXT_texture_filter_anisotropic' ) === true ) {
+
+			if ( texture.magFilter === NearestFilter ) return;
+			if ( texture.minFilter !== NearestMipmapLinearFilter && texture.minFilter !== LinearMipmapLinearFilter ) return;
+			if ( texture.type === FloatType && extensions.has( 'OES_texture_float_linear' ) === false ) return; // verify extension for WebGL 1 and WebGL 2
+
+			if ( texture.anisotropy > 1 || currentAnisotropy !== texture.anisotropy ) {
+
+				const extension = extensions.get( 'EXT_texture_filter_anisotropic' );
+				gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, backend.getMaxAnisotropy() ) );
+				backend.get( texture ).currentAnisotropy = texture.anisotropy;
+
+			}
+
+		}
+
+	}
+
+	createDefaultTexture( texture ) {
+
+		const { gl, backend, defaultTextures } = this;
+
+
+		const glTextureType = this.getGLTextureType( texture );
+
+		let textureGPU = defaultTextures[ glTextureType ];
+
+		if ( textureGPU === undefined ) {
+
+			textureGPU = gl.createTexture();
+
+			backend.state.bindTexture( glTextureType, textureGPU );
+			gl.texParameteri( glTextureType, gl.TEXTURE_MIN_FILTER, gl.NEAREST );
+			gl.texParameteri( glTextureType, gl.TEXTURE_MAG_FILTER, gl.NEAREST );
+
+			// gl.texImage2D( glTextureType, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, data );
+
+			defaultTextures[ glTextureType ] = textureGPU;
+
+		}
+
+		backend.set( texture, {
+			textureGPU,
+			glTextureType,
+			isDefault: true
+		} );
+
+	}
+
+	createTexture( texture, options ) {
+
+		const { gl, backend } = this;
+		const { levels, width, height, depth } = options;
+
+		const glFormat = backend.utils.convert( texture.format, texture.colorSpace );
+		const glType = backend.utils.convert( texture.type );
+		const glInternalFormat = this.getInternalFormat( texture.internalFormat, glFormat, glType, texture.colorSpace, texture.isVideoTexture );
+
+		const textureGPU = gl.createTexture();
+		const glTextureType = this.getGLTextureType( texture );
+
+		backend.state.bindTexture( glTextureType, textureGPU );
+
+		gl.pixelStorei( gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );
+		gl.pixelStorei( gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha );
+		gl.pixelStorei( gl.UNPACK_ALIGNMENT, texture.unpackAlignment );
+		gl.pixelStorei( gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE );
+
+		this.setTextureParameters( glTextureType, texture );
+
+		if ( texture.isDataArrayTexture ) {
+
+			gl.texStorage3D( gl.TEXTURE_2D_ARRAY, levels, glInternalFormat, width, height, depth );
+
+		} else if ( ! texture.isVideoTexture ) {
+
+			gl.texStorage2D( glTextureType, levels, glInternalFormat, width, height );
+
+		}
+
+		backend.set( texture, {
+			textureGPU,
+			glTextureType,
+			glFormat,
+			glType,
+			glInternalFormat
+		} );
+
+	}
+
+	copyBufferToTexture( buffer, texture ) {
+
+		const { gl, backend } = this;
+
+		const { textureGPU, glTextureType, glFormat, glType } = backend.get( texture );
+
+		const { width, height } = texture.source.data;
+
+		gl.bindBuffer( gl.PIXEL_UNPACK_BUFFER, buffer );
+
+		backend.state.bindTexture( glTextureType, textureGPU );
+
+		gl.pixelStorei( gl.UNPACK_FLIP_Y_WEBGL, false );
+		gl.pixelStorei( gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false );
+		gl.texSubImage2D( glTextureType, 0, 0, 0, width, height, glFormat, glType, 0 );
+
+		gl.bindBuffer( gl.PIXEL_UNPACK_BUFFER, null );
+
+		backend.state.unbindTexture();
+		// debug
+		// const framebuffer = gl.createFramebuffer();
+		// gl.bindFramebuffer( gl.FRAMEBUFFER, framebuffer );
+		// gl.framebufferTexture2D( gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, glTextureType, textureGPU, 0 );
+
+		// const readout = new Float32Array( width * height * 4 );
+
+		// const altFormat = gl.getParameter( gl.IMPLEMENTATION_COLOR_READ_FORMAT );
+		// const altType = gl.getParameter( gl.IMPLEMENTATION_COLOR_READ_TYPE );
+
+		// gl.readPixels( 0, 0, width, height, altFormat, altType, readout );
+		// gl.bindFramebuffer( gl.FRAMEBUFFER, null );
+		// console.log( readout );
+
+	}
+
+	updateTexture( texture, options ) {
+
+		const { gl } = this;
+		const { width, height } = options;
+		const { textureGPU, glTextureType, glFormat, glType, glInternalFormat } = this.backend.get( texture );
+
+		if ( texture.isRenderTargetTexture || ( textureGPU === undefined /* unsupported texture format */ ) )
+			return;
+
+		const getImage = ( source ) => {
+
+			if ( source.isDataTexture ) {
+
+				return source.image.data;
+
+			} else if ( source instanceof ImageBitmap || source instanceof OffscreenCanvas || source instanceof HTMLImageElement || source instanceof HTMLCanvasElement ) {
+
+				return source;
+
+			}
+
+			return source.data;
+
+		};
+
+		this.backend.state.bindTexture( glTextureType, textureGPU );
+
+		if ( texture.isCompressedTexture ) {
+
+			const mipmaps = texture.mipmaps;
+
+			for ( let i = 0; i < mipmaps.length; i ++ ) {
+
+				const mipmap = mipmaps[ i ];
+
+				if ( texture.isCompressedArrayTexture ) {
+
+					const image = options.image;
+
+					if ( texture.format !== gl.RGBA ) {
+
+						if ( glFormat !== null ) {
+
+							gl.compressedTexSubImage3D( gl.TEXTURE_2D_ARRAY, i, 0, 0, 0, mipmap.width, mipmap.height, image.depth, glFormat, mipmap.data, 0, 0 );
+
+
+						} else {
+
+							console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()' );
+
+						}
+
+					} else {
+
+						gl.texSubImage3D( gl.TEXTURE_2D_ARRAY, i, 0, 0, 0, mipmap.width, mipmap.height, image.depth, glFormat, glType, mipmap.data );
+
+					}
+
+				} else {
+
+					if ( glFormat !== null ) {
+
+						gl.compressedTexSubImage2D( gl.TEXTURE_2D, i, 0, 0, mipmap.width, mipmap.height, glFormat, mipmap.data );
+
+					} else {
+
+						console.warn( 'Unsupported compressed texture format' );
+
+					}
+
+				}
+
+			}
+
+		} else if ( texture.isCubeTexture ) {
+
+			const images = options.images;
+
+			for ( let i = 0; i < 6; i ++ ) {
+
+				const image = getImage( images[ i ] );
+
+				gl.texSubImage2D( gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, 0, 0, width, height, glFormat, glType, image );
+
+			}
+
+		} else if ( texture.isDataArrayTexture ) {
+
+			const image = options.image;
+
+			gl.texSubImage3D( gl.TEXTURE_2D_ARRAY, 0, 0, 0, 0, image.width, image.height, image.depth, glFormat, glType, image.data );
+
+		} else if ( texture.isVideoTexture ) {
+
+			texture.update();
+
+			gl.texImage2D( glTextureType, 0, glInternalFormat, glFormat, glType, options.image );
+
+
+		} else {
+
+			const image = getImage( options.image );
+
+			gl.texSubImage2D( glTextureType, 0, 0, 0, width, height, glFormat, glType, image );
+
+		}
+
+	}
+
+	generateMipmaps( texture ) {
+
+		const { gl, backend } = this;
+		const { textureGPU, glTextureType } = backend.get( texture );
+
+		backend.state.bindTexture( glTextureType, textureGPU );
+		gl.generateMipmap( glTextureType );
+
+	}
+
+	deallocateRenderBuffers( renderTarget ) {
+
+
+		const { gl, backend } = this;
+
+		// remove framebuffer reference
+		if ( renderTarget ) {
+
+			const renderContextData = backend.get( renderTarget );
+
+			renderContextData.renderBufferStorageSetup = undefined;
+
+			if ( renderContextData.framebuffer ) {
+
+				gl.deleteFramebuffer( renderContextData.framebuffer );
+				renderContextData.framebuffer = undefined;
+
+			}
+
+			if ( renderContextData.depthRenderbuffer ) {
+
+				gl.deleteRenderbuffer( renderContextData.depthRenderbuffer );
+				renderContextData.depthRenderbuffer = undefined;
+
+			}
+
+			if ( renderContextData.stencilRenderbuffer ) {
+
+				gl.deleteRenderbuffer( renderContextData.stencilRenderbuffer );
+				renderContextData.stencilRenderbuffer = undefined;
+
+			}
+
+			if ( renderContextData.msaaFrameBuffer ) {
+
+				gl.deleteFramebuffer( renderContextData.msaaFrameBuffer );
+				renderContextData.msaaFrameBuffer = undefined;
+
+			}
+
+			if ( renderContextData.msaaRenderbuffers ) {
+
+				for ( let i = 0; i < renderContextData.msaaRenderbuffers.length; i ++ ) {
+
+					gl.deleteRenderbuffer( renderContextData.msaaRenderbuffers[ i ] );
+
+				}
+
+				renderContextData.msaaRenderbuffers = undefined;
+
+			}
+
+		}
+
+	}
+
+	destroyTexture( texture ) {
+
+		const { gl, backend } = this;
+		const { textureGPU, renderTarget } = backend.get( texture );
+
+		this.deallocateRenderBuffers( renderTarget );
+		gl.deleteTexture( textureGPU );
+
+		backend.delete( texture );
+
+	}
+
+	copyTextureToTexture( position, srcTexture, dstTexture, level = 0 ) {
+
+		const { gl, backend } = this;
+		const { state } = this.backend;
+
+		const width = srcTexture.image.width;
+		const height = srcTexture.image.height;
+		const { textureGPU: dstTextureGPU, glTextureType, glType, glFormat } = backend.get( dstTexture );
+
+		state.bindTexture( glTextureType, dstTextureGPU );
+
+		// As another texture upload may have changed pixelStorei
+		// parameters, make sure they are correct for the dstTexture
+		gl.pixelStorei( gl.UNPACK_FLIP_Y_WEBGL, dstTexture.flipY );
+		gl.pixelStorei( gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, dstTexture.premultiplyAlpha );
+		gl.pixelStorei( gl.UNPACK_ALIGNMENT, dstTexture.unpackAlignment );
+
+		if ( srcTexture.isDataTexture ) {
+
+			gl.texSubImage2D( gl.TEXTURE_2D, level, position.x, position.y, width, height, glFormat, glType, srcTexture.image.data );
+
+		} else {
+
+			if ( srcTexture.isCompressedTexture ) {
+
+				gl.compressedTexSubImage2D( gl.TEXTURE_2D, level, position.x, position.y, srcTexture.mipmaps[ 0 ].width, srcTexture.mipmaps[ 0 ].height, glFormat, srcTexture.mipmaps[ 0 ].data );
+
+			} else {
+
+				gl.texSubImage2D( gl.TEXTURE_2D, level, position.x, position.y, glFormat, glType, srcTexture.image );
+
+			}
+
+		}
+
+		// Generate mipmaps only when copying level 0
+		if ( level === 0 && dstTexture.generateMipmaps ) gl.generateMipmap( gl.TEXTURE_2D );
+
+		state.unbindTexture();
+
+	}
+
+	copyFramebufferToTexture( texture, renderContext ) {
+
+		const { gl } = this;
+		const { state } = this.backend;
+
+		const { textureGPU } = this.backend.get( texture );
+
+		const width = texture.image.width;
+		const height = texture.image.height;
+
+		const requireDrawFrameBuffer = texture.isDepthTexture === true || ( renderContext.renderTarget && renderContext.renderTarget.samples > 0 );
+
+		if ( requireDrawFrameBuffer ) {
+
+			let mask;
+			let attachment;
+
+			if ( texture.isDepthTexture === true ) {
+
+				mask = gl.DEPTH_BUFFER_BIT;
+				attachment = gl.DEPTH_ATTACHMENT;
+
+				if ( renderContext.stencil ) {
+
+					mask |= gl.STENCIL_BUFFER_BIT;
+
+				}
+
+			} else {
+
+				mask = gl.COLOR_BUFFER_BIT;
+				attachment = gl.COLOR_ATTACHMENT0;
+
+			}
+
+			const fb = gl.createFramebuffer();
+			state.bindFramebuffer( gl.DRAW_FRAMEBUFFER, fb );
+
+			gl.framebufferTexture2D( gl.DRAW_FRAMEBUFFER, attachment, gl.TEXTURE_2D, textureGPU, 0 );
+
+			gl.blitFramebuffer( 0, 0, width, height, 0, 0, width, height, mask, gl.NEAREST );
+
+			gl.deleteFramebuffer( fb );
+
+		} else {
+
+			state.bindTexture( gl.TEXTURE_2D, textureGPU );
+			gl.copyTexSubImage2D( gl.TEXTURE_2D, 0, 0, 0, 0, 0, width, height );
+
+			state.unbindTexture();
+
+		}
+
+		if ( texture.generateMipmaps ) this.generateMipmaps( texture );
+
+		this.backend._setFramebuffer( renderContext );
+
+	}
+
+	// Setup storage for internal depth/stencil buffers and bind to correct framebuffer
+	setupRenderBufferStorage( renderbuffer, renderContext ) {
+
+		const { gl } = this;
+		const renderTarget = renderContext.renderTarget;
+
+		const { samples, depthTexture, depthBuffer, stencilBuffer, width, height } = renderTarget;
+
+		gl.bindRenderbuffer( gl.RENDERBUFFER, renderbuffer );
+
+		if ( depthBuffer && ! stencilBuffer ) {
+
+			let glInternalFormat = gl.DEPTH_COMPONENT24;
+
+			if ( samples > 0 ) {
+
+				if ( depthTexture && depthTexture.isDepthTexture ) {
+
+					if ( depthTexture.type === gl.FLOAT ) {
+
+						glInternalFormat = gl.DEPTH_COMPONENT32F;
+
+					}
+
+				}
+
+				gl.renderbufferStorageMultisample( gl.RENDERBUFFER, samples, glInternalFormat, width, height );
+
+			} else {
+
+				gl.renderbufferStorage( gl.RENDERBUFFER, glInternalFormat, width, height );
+
+			}
+
+			gl.framebufferRenderbuffer( gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT, gl.RENDERBUFFER, renderbuffer );
+
+		} else if ( depthBuffer && stencilBuffer ) {
+
+			if ( samples > 0 ) {
+
+				gl.renderbufferStorageMultisample( gl.RENDERBUFFER, samples, gl.DEPTH24_STENCIL8, width, height );
+
+			} else {
+
+				gl.renderbufferStorage( gl.RENDERBUFFER, gl.DEPTH_STENCIL, width, height );
+
+			}
+
+
+			gl.framebufferRenderbuffer( gl.FRAMEBUFFER, gl.DEPTH_STENCIL_ATTACHMENT, gl.RENDERBUFFER, renderbuffer );
+
+		}
+
+	}
+
+	async copyTextureToBuffer( texture, x, y, width, height ) {
+
+		const { backend, gl } = this;
+
+		const { textureGPU, glFormat, glType } = this.backend.get( texture );
+
+		const fb = gl.createFramebuffer();
+
+		gl.bindFramebuffer( gl.READ_FRAMEBUFFER, fb );
+		gl.framebufferTexture2D( gl.READ_FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, textureGPU, 0 );
+
+		const typedArrayType = this._getTypedArrayType( glType );
+		const bytesPerTexel = this._getBytesPerTexel( glFormat );
+
+		const elementCount = width * height;
+		const byteLength = elementCount * bytesPerTexel;
+
+		const buffer = gl.createBuffer();
+
+		gl.bindBuffer( gl.PIXEL_PACK_BUFFER, buffer );
+		gl.bufferData( gl.PIXEL_PACK_BUFFER, byteLength, gl.STREAM_READ );
+		gl.readPixels( x, y, width, height, glFormat, glType, 0 );
+		gl.bindBuffer( gl.PIXEL_PACK_BUFFER, null );
+
+		await backend.utils._clientWaitAsync();
+
+		const dstBuffer = new typedArrayType( byteLength / typedArrayType.BYTES_PER_ELEMENT );
+
+		gl.bindBuffer( gl.PIXEL_PACK_BUFFER, buffer );
+		gl.getBufferSubData( gl.PIXEL_PACK_BUFFER, 0, dstBuffer );
+		gl.bindBuffer( gl.PIXEL_PACK_BUFFER, null );
+
+		gl.deleteFramebuffer( fb );
+
+		return dstBuffer;
+
+	}
+
+	_getTypedArrayType( glType ) {
+
+		const { gl } = this;
+
+		if ( glType === gl.UNSIGNED_BYTE ) return Uint8Array;
+
+		if ( glType === gl.UNSIGNED_SHORT_4_4_4_4 ) return Uint16Array;
+		if ( glType === gl.UNSIGNED_SHORT_5_5_5_1 ) return Uint16Array;
+		if ( glType === gl.UNSIGNED_SHORT_5_6_5 ) return Uint16Array;
+		if ( glType === gl.UNSIGNED_SHORT ) return Uint16Array;
+		if ( glType === gl.UNSIGNED_INT ) return Uint32Array;
+
+		if ( glType === gl.FLOAT ) return Float32Array;
+
+		throw new Error( `Unsupported WebGL type: ${glType}` );
+
+	}
+
+	_getBytesPerTexel( glFormat ) {
+
+		const { gl } = this;
+
+		if ( glFormat === gl.RGBA ) return 4;
+		if ( glFormat === gl.RGB ) return 3;
+		if ( glFormat === gl.ALPHA ) return 1;
+
+	}
+
+}
+
+export default WebGLTextureUtils;

public/sdk/three/jsm/renderers/webgl/utils/WebGLUtils.js

@@ -0,0 +1,268 @@
+import { RGBA_ASTC_4x4_Format, RGBA_ASTC_5x4_Format, RGBA_ASTC_5x5_Format, RGBA_ASTC_6x5_Format, RGBA_ASTC_6x6_Format, RGBA_ASTC_8x5_Format, RGBA_ASTC_8x6_Format, RGBA_ASTC_8x8_Format, RGBA_ASTC_10x5_Format, RGBA_ASTC_10x6_Format, RGBA_ASTC_10x8_Format, RGBA_ASTC_10x10_Format, RGBA_ASTC_12x10_Format, RGBA_ASTC_12x12_Format, RGB_ETC1_Format, RGB_ETC2_Format, RGBA_ETC2_EAC_Format, RGBA_PVRTC_2BPPV1_Format, RGBA_PVRTC_4BPPV1_Format, RGB_PVRTC_2BPPV1_Format, RGB_PVRTC_4BPPV1_Format, RGBA_S3TC_DXT5_Format, RGBA_S3TC_DXT3_Format, RGBA_S3TC_DXT1_Format, RGB_S3TC_DXT1_Format, DepthFormat, DepthStencilFormat, LuminanceAlphaFormat, LuminanceFormat, RedFormat, RGBFormat, RGBAFormat, AlphaFormat, RedIntegerFormat, RGFormat, RGIntegerFormat, RGBAIntegerFormat, HalfFloatType, FloatType, UnsignedIntType, IntType, UnsignedShortType, ShortType, ByteType, UnsignedInt248Type, UnsignedInt5999Type, UnsignedShort5551Type, UnsignedShort4444Type, UnsignedByteType, RGBA_BPTC_Format, RED_RGTC1_Format, SIGNED_RED_RGTC1_Format, RED_GREEN_RGTC2_Format, SIGNED_RED_GREEN_RGTC2_Format, SRGBColorSpace, NoColorSpace } from 'three';
+
+class WebGLUtils {
+
+	constructor( backend ) {
+
+		this.backend = backend;
+
+		this.gl = this.backend.gl;
+		this.extensions = backend.extensions;
+
+	}
+
+	convert( p, colorSpace = NoColorSpace ) {
+
+		const { gl, extensions } = this;
+
+		let extension;
+
+		if ( p === UnsignedByteType ) return gl.UNSIGNED_BYTE;
+		if ( p === UnsignedShort4444Type ) return gl.UNSIGNED_SHORT_4_4_4_4;
+		if ( p === UnsignedShort5551Type ) return gl.UNSIGNED_SHORT_5_5_5_1;
+		if ( p === UnsignedInt5999Type ) return gl.UNSIGNED_INT_5_9_9_9_REV;
+
+		if ( p === ByteType ) return gl.BYTE;
+		if ( p === ShortType ) return gl.SHORT;
+		if ( p === UnsignedShortType ) return gl.UNSIGNED_SHORT;
+		if ( p === IntType ) return gl.INT;
+		if ( p === UnsignedIntType ) return gl.UNSIGNED_INT;
+		if ( p === FloatType ) return gl.FLOAT;
+
+		if ( p === HalfFloatType ) {
+
+			return gl.HALF_FLOAT;
+
+		}
+
+		if ( p === AlphaFormat ) return gl.ALPHA;
+		if ( p === RGBFormat ) return gl.RGB;
+		if ( p === RGBAFormat ) return gl.RGBA;
+		if ( p === LuminanceFormat ) return gl.LUMINANCE;
+		if ( p === LuminanceAlphaFormat ) return gl.LUMINANCE_ALPHA;
+		if ( p === DepthFormat ) return gl.DEPTH_COMPONENT;
+		if ( p === DepthStencilFormat ) return gl.DEPTH_STENCIL;
+
+		// WebGL2 formats.
+
+		if ( p === RedFormat ) return gl.RED;
+		if ( p === RedIntegerFormat ) return gl.RED_INTEGER;
+		if ( p === RGFormat ) return gl.RG;
+		if ( p === RGIntegerFormat ) return gl.RG_INTEGER;
+		if ( p === RGBAIntegerFormat ) return gl.RGBA_INTEGER;
+
+		// S3TC
+
+		if ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format || p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) {
+
+			if ( colorSpace === SRGBColorSpace ) {
+
+				extension = extensions.get( 'WEBGL_compressed_texture_s3tc_srgb' );
+
+				if ( extension !== null ) {
+
+					if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_SRGB_S3TC_DXT1_EXT;
+					if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT;
+					if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT;
+					if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT;
+
+				} else {
+
+					return null;
+
+				}
+
+			} else {
+
+				extension = extensions.get( 'WEBGL_compressed_texture_s3tc' );
+
+				if ( extension !== null ) {
+
+					if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
+					if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
+					if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
+					if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;
+
+				} else {
+
+					return null;
+
+				}
+
+			}
+
+		}
+
+		// PVRTC
+
+		if ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format || p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) {
+
+			extension = extensions.get( 'WEBGL_compressed_texture_pvrtc' );
+
+			if ( extension !== null ) {
+
+				if ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
+				if ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
+				if ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
+				if ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
+
+			} else {
+
+				return null;
+
+			}
+
+		}
+
+		// ETC
+
+		if ( p === RGB_ETC1_Format || p === RGB_ETC2_Format || p === RGBA_ETC2_EAC_Format ) {
+
+			extension = extensions.get( 'WEBGL_compressed_texture_etc' );
+
+			if ( extension !== null ) {
+
+				if ( p === RGB_ETC1_Format || p === RGB_ETC2_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ETC2 : extension.COMPRESSED_RGB8_ETC2;
+				if ( p === RGBA_ETC2_EAC_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC : extension.COMPRESSED_RGBA8_ETC2_EAC;
+
+			} else {
+
+				return null;
+
+			}
+
+		}
+
+		// ASTC
+
+		if ( p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format ||
+			p === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format ||
+			p === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format ||
+			p === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format ||
+			p === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format ) {
+
+			extension = extensions.get( 'WEBGL_compressed_texture_astc' );
+
+			if ( extension !== null ) {
+
+				if ( p === RGBA_ASTC_4x4_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR : extension.COMPRESSED_RGBA_ASTC_4x4_KHR;
+				if ( p === RGBA_ASTC_5x4_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR : extension.COMPRESSED_RGBA_ASTC_5x4_KHR;
+				if ( p === RGBA_ASTC_5x5_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR : extension.COMPRESSED_RGBA_ASTC_5x5_KHR;
+				if ( p === RGBA_ASTC_6x5_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR : extension.COMPRESSED_RGBA_ASTC_6x5_KHR;
+				if ( p === RGBA_ASTC_6x6_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR : extension.COMPRESSED_RGBA_ASTC_6x6_KHR;
+				if ( p === RGBA_ASTC_8x5_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR : extension.COMPRESSED_RGBA_ASTC_8x5_KHR;
+				if ( p === RGBA_ASTC_8x6_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR : extension.COMPRESSED_RGBA_ASTC_8x6_KHR;
+				if ( p === RGBA_ASTC_8x8_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR : extension.COMPRESSED_RGBA_ASTC_8x8_KHR;
+				if ( p === RGBA_ASTC_10x5_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR : extension.COMPRESSED_RGBA_ASTC_10x5_KHR;
+				if ( p === RGBA_ASTC_10x6_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR : extension.COMPRESSED_RGBA_ASTC_10x6_KHR;
+				if ( p === RGBA_ASTC_10x8_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR : extension.COMPRESSED_RGBA_ASTC_10x8_KHR;
+				if ( p === RGBA_ASTC_10x10_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR : extension.COMPRESSED_RGBA_ASTC_10x10_KHR;
+				if ( p === RGBA_ASTC_12x10_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR : extension.COMPRESSED_RGBA_ASTC_12x10_KHR;
+				if ( p === RGBA_ASTC_12x12_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR : extension.COMPRESSED_RGBA_ASTC_12x12_KHR;
+
+			} else {
+
+				return null;
+
+			}
+
+		}
+
+		// BPTC
+
+		if ( p === RGBA_BPTC_Format ) {
+
+			extension = extensions.get( 'EXT_texture_compression_bptc' );
+
+			if ( extension !== null ) {
+
+				if ( p === RGBA_BPTC_Format ) return ( colorSpace === SRGBColorSpace ) ? extension.COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT : extension.COMPRESSED_RGBA_BPTC_UNORM_EXT;
+
+			} else {
+
+				return null;
+
+			}
+
+		}
+
+		// RGTC
+
+		if ( p === RED_RGTC1_Format || p === SIGNED_RED_RGTC1_Format || p === RED_GREEN_RGTC2_Format || p === SIGNED_RED_GREEN_RGTC2_Format ) {
+
+			extension = extensions.get( 'EXT_texture_compression_rgtc' );
+
+			if ( extension !== null ) {
+
+				if ( p === RGBA_BPTC_Format ) return extension.COMPRESSED_RED_RGTC1_EXT;
+				if ( p === SIGNED_RED_RGTC1_Format ) return extension.COMPRESSED_SIGNED_RED_RGTC1_EXT;
+				if ( p === RED_GREEN_RGTC2_Format ) return extension.COMPRESSED_RED_GREEN_RGTC2_EXT;
+				if ( p === SIGNED_RED_GREEN_RGTC2_Format ) return extension.COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT;
+
+			} else {
+
+				return null;
+
+			}
+
+		}
+
+		//
+
+		if ( p === UnsignedInt248Type ) {
+
+			return gl.UNSIGNED_INT_24_8;
+
+		}
+
+		// if "p" can't be resolved, assume the user defines a WebGL constant as a string (fallback/workaround for packed RGB formats)
+
+		return ( gl[ p ] !== undefined ) ? gl[ p ] : null;
+
+	}
+
+	_clientWaitAsync() {
+
+		const { gl } = this;
+
+		const sync = gl.fenceSync( gl.SYNC_GPU_COMMANDS_COMPLETE, 0 );
+
+		gl.flush();
+
+		return new Promise( ( resolve, reject ) => {
+
+			function test() {
+
+				const res = gl.clientWaitSync( sync, gl.SYNC_FLUSH_COMMANDS_BIT, 0 );
+
+				if ( res === gl.WAIT_FAILED ) {
+
+					gl.deleteSync( sync );
+
+					reject();
+					return;
+
+				}
+
+				if ( res === gl.TIMEOUT_EXPIRED ) {
+
+					requestAnimationFrame( test );
+					return;
+
+				}
+
+				gl.deleteSync( sync );
+
+				resolve();
+
+			}
+
+			test();
+
+		} );
+
+	}
+
+}
+
+export default WebGLUtils;

public/sdk/three/jsm/renderers/webgpu/WebGPURenderer.js

@@ -0,0 +1,53 @@
+import WebGPU from '../../capabilities/WebGPU.js';
+
+import Renderer from '../common/Renderer.js';
+import WebGLBackend from '../webgl/WebGLBackend.js';
+import WebGPUBackend from './WebGPUBackend.js';
+/*
+const debugHandler = {
+
+	get: function ( target, name ) {
+
+		// Add |update
+		if ( /^(create|destroy)/.test( name ) ) console.log( 'WebGPUBackend.' + name );
+
+		return target[ name ];
+
+	}
+
+};
+*/
+class WebGPURenderer extends Renderer {
+
+	constructor( parameters = {} ) {
+
+		let BackendClass;
+
+		if ( parameters.forceWebGL ) {
+
+			BackendClass = WebGLBackend;
+
+		} else if ( WebGPU.isAvailable() ) {
+
+			BackendClass = WebGPUBackend;
+
+		} else {
+
+			BackendClass = WebGLBackend;
+
+			console.warn( 'THREE.WebGPURenderer: WebGPU is not available, running under WebGL2 backend.' );
+
+		}
+
+		const backend = new BackendClass( parameters );
+
+		//super( new Proxy( backend, debugHandler ) );
+		super( backend, parameters );
+
+		this.isWebGPURenderer = true;
+
+	}
+
+}
+
+export default WebGPURenderer;

public/sdk/three/jsm/renderers/webgpu/nodes/WGSLNodeFunction.js

@@ -0,0 +1,104 @@
+import NodeFunction from '../../../nodes/core/NodeFunction.js';
+import NodeFunctionInput from '../../../nodes/core/NodeFunctionInput.js';
+
+const declarationRegexp = /^[fn]*\s*([a-z_0-9]+)?\s*\(([\s\S]*?)\)\s*[\-\>]*\s*([a-z_0-9]+)?/i;
+const propertiesRegexp = /[a-z_0-9]+|<(.*?)>+/ig;
+
+const wgslTypeLib = {
+	f32: 'float'
+};
+
+const parse = ( source ) => {
+
+	source = source.trim();
+
+	const declaration = source.match( declarationRegexp );
+
+	if ( declaration !== null && declaration.length === 4 ) {
+
+		// tokenizer
+
+		const inputsCode = declaration[ 2 ];
+		const propsMatches = [];
+
+		let nameMatch = null;
+
+		while ( ( nameMatch = propertiesRegexp.exec( inputsCode ) ) !== null ) {
+
+			propsMatches.push( nameMatch );
+
+		}
+
+		// parser
+
+		const inputs = [];
+
+		let i = 0;
+
+		while ( i < propsMatches.length ) {
+
+			// default
+
+			const name = propsMatches[ i ++ ][ 0 ];
+			let type = propsMatches[ i ++ ][ 0 ];
+
+			type = wgslTypeLib[ type ] || type;
+
+			// precision
+
+			if ( i < propsMatches.length && propsMatches[ i ][ 0 ].startsWith( '<' ) === true )
+				i ++;
+
+			// add input
+
+			inputs.push( new NodeFunctionInput( type, name ) );
+
+		}
+
+		//
+
+		const blockCode = source.substring( declaration[ 0 ].length );
+
+		const name = declaration[ 1 ] !== undefined ? declaration[ 1 ] : '';
+		const type = declaration[ 3 ] || 'void';
+
+		return {
+			type,
+			inputs,
+			name,
+			inputsCode,
+			blockCode
+		};
+
+	} else {
+
+		throw new Error( 'FunctionNode: Function is not a WGSL code.' );
+
+	}
+
+};
+
+class WGSLNodeFunction extends NodeFunction {
+
+	constructor( source ) {
+
+		const { type, inputs, name, inputsCode, blockCode } = parse( source );
+
+		super( type, inputs, name );
+
+		this.inputsCode = inputsCode;
+		this.blockCode = blockCode;
+
+	}
+
+	getCode( name = this.name ) {
+
+		const type = this.type !== 'void' ? '-> ' + this.type : '';
+
+		return `fn ${ name } ( ${ this.inputsCode.trim() } ) ${ type }` + this.blockCode;
+
+	}
+
+}
+
+export default WGSLNodeFunction;

public/sdk/three/jsm/renderers/webgpu/nodes/WGSLNodeParser.js

@@ -0,0 +1,14 @@
+import NodeParser from '../../../nodes/core/NodeParser.js';
+import WGSLNodeFunction from './WGSLNodeFunction.js';
+
+class WGSLNodeParser extends NodeParser {
+
+	parseFunction( source ) {
+
+		return new WGSLNodeFunction( source );
+
+	}
+
+}
+
+export default WGSLNodeParser;

public/sdk/three/jsm/renderers/webgpu/utils/WebGPUAttributeUtils.js

@@ -0,0 +1,321 @@
+import { Float16BufferAttribute } from 'three';
+import { GPUInputStepMode } from './WebGPUConstants.js';
+
+const typedArraysToVertexFormatPrefix = new Map( [
+	[ Int8Array, [ 'sint8', 'snorm8' ]],
+	[ Uint8Array, [ 'uint8', 'unorm8' ]],
+	[ Int16Array, [ 'sint16', 'snorm16' ]],
+	[ Uint16Array, [ 'uint16', 'unorm16' ]],
+	[ Int32Array, [ 'sint32', 'snorm32' ]],
+	[ Uint32Array, [ 'uint32', 'unorm32' ]],
+	[ Float32Array, [ 'float32', ]],
+] );
+
+const typedAttributeToVertexFormatPrefix = new Map( [
+	[ Float16BufferAttribute, [ 'float16', ]],
+] );
+
+const typeArraysToVertexFormatPrefixForItemSize1 = new Map( [
+	[ Int32Array, 'sint32' ],
+	[ Int16Array, 'sint32' ], // patch for INT16
+	[ Uint32Array, 'uint32' ],
+	[ Uint16Array, 'uint32' ], // patch for UINT16
+	[ Float32Array, 'float32' ]
+] );
+
+class WebGPUAttributeUtils {
+
+	constructor( backend ) {
+
+		this.backend = backend;
+
+	}
+
+	createAttribute( attribute, usage ) {
+
+		const bufferAttribute = this._getBufferAttribute( attribute );
+
+		const backend = this.backend;
+		const bufferData = backend.get( bufferAttribute );
+
+		let buffer = bufferData.buffer;
+
+		if ( buffer === undefined ) {
+
+			const device = backend.device;
+
+			let array = bufferAttribute.array;
+
+			// patch for INT16 and UINT16
+			if ( attribute.normalized === false && ( array.constructor === Int16Array || array.constructor === Uint16Array ) ) {
+
+				const tempArray = new Uint32Array( array.length );
+				for ( let i = 0; i < array.length; i ++ ) {
+
+					tempArray[ i ] = array[ i ];
+
+				}
+
+				array = tempArray;
+
+			}
+
+			bufferAttribute.array = array;
+
+			if ( ( bufferAttribute.isStorageBufferAttribute || bufferAttribute.isStorageInstancedBufferAttribute ) && bufferAttribute.itemSize === 3 ) {
+
+				array = new array.constructor( bufferAttribute.count * 4 );
+
+				for ( let i = 0; i < bufferAttribute.count; i ++ ) {
+
+					array.set( bufferAttribute.array.subarray( i * 3, i * 3 + 3 ), i * 4 );
+
+				}
+
+				// Update BufferAttribute
+				bufferAttribute.itemSize = 4;
+				bufferAttribute.array = array;
+
+			}
+
+			const size = array.byteLength + ( ( 4 - ( array.byteLength % 4 ) ) % 4 ); // ensure 4 byte alignment, see #20441
+
+			buffer = device.createBuffer( {
+				label: bufferAttribute.name,
+				size: size,
+				usage: usage,
+				mappedAtCreation: true
+			} );
+
+			new array.constructor( buffer.getMappedRange() ).set( array );
+
+			buffer.unmap();
+
+			bufferData.buffer = buffer;
+
+		}
+
+	}
+
+	updateAttribute( attribute ) {
+
+		const bufferAttribute = this._getBufferAttribute( attribute );
+
+		const backend = this.backend;
+		const device = backend.device;
+
+		const buffer = backend.get( bufferAttribute ).buffer;
+
+		const array = bufferAttribute.array;
+		const updateRanges = bufferAttribute.updateRanges;
+
+		if ( updateRanges.length === 0 ) {
+
+			// Not using update ranges
+
+			device.queue.writeBuffer(
+				buffer,
+				0,
+				array,
+				0
+			);
+
+		} else {
+
+			for ( let i = 0, l = updateRanges.length; i < l; i ++ ) {
+
+				const range = updateRanges[ i ];
+				device.queue.writeBuffer(
+					buffer,
+					0,
+					array,
+					range.start * array.BYTES_PER_ELEMENT,
+					range.count * array.BYTES_PER_ELEMENT
+				);
+
+			}
+
+			bufferAttribute.clearUpdateRanges();
+
+		}
+
+	}
+
+	createShaderVertexBuffers( renderObject ) {
+
+		const attributes = renderObject.getAttributes();
+		const vertexBuffers = new Map();
+
+		for ( let slot = 0; slot < attributes.length; slot ++ ) {
+
+			const geometryAttribute = attributes[ slot ];
+			const bytesPerElement = geometryAttribute.array.BYTES_PER_ELEMENT;
+			const bufferAttribute = this._getBufferAttribute( geometryAttribute );
+
+			let vertexBufferLayout = vertexBuffers.get( bufferAttribute );
+
+			if ( vertexBufferLayout === undefined ) {
+
+				let arrayStride, stepMode;
+
+				if ( geometryAttribute.isInterleavedBufferAttribute === true ) {
+
+					arrayStride = geometryAttribute.data.stride * bytesPerElement;
+					stepMode = geometryAttribute.data.isInstancedInterleavedBuffer ? GPUInputStepMode.Instance : GPUInputStepMode.Vertex;
+
+				} else {
+
+					arrayStride = geometryAttribute.itemSize * bytesPerElement;
+					stepMode = geometryAttribute.isInstancedBufferAttribute ? GPUInputStepMode.Instance : GPUInputStepMode.Vertex;
+
+				}
+
+				// patch for INT16 and UINT16
+				if ( geometryAttribute.normalized === false && ( geometryAttribute.array.constructor === Int16Array || geometryAttribute.array.constructor === Uint16Array ) ) {
+
+					arrayStride = 4;
+
+				}
+
+				vertexBufferLayout = {
+					arrayStride,
+					attributes: [],
+					stepMode
+				};
+
+				vertexBuffers.set( bufferAttribute, vertexBufferLayout );
+
+			}
+
+			const format = this._getVertexFormat( geometryAttribute );
+			const offset = ( geometryAttribute.isInterleavedBufferAttribute === true ) ? geometryAttribute.offset * bytesPerElement : 0;
+
+			vertexBufferLayout.attributes.push( {
+				shaderLocation: slot,
+				offset,
+				format
+			} );
+
+		}
+
+		return Array.from( vertexBuffers.values() );
+
+	}
+
+	destroyAttribute( attribute ) {
+
+		const backend = this.backend;
+		const data = backend.get( this._getBufferAttribute( attribute ) );
+
+		data.buffer.destroy();
+
+		backend.delete( attribute );
+
+	}
+
+	async getArrayBufferAsync( attribute ) {
+
+		const backend = this.backend;
+		const device = backend.device;
+
+		const data = backend.get( this._getBufferAttribute( attribute ) );
+
+		const bufferGPU = data.buffer;
+		const size = bufferGPU.size;
+
+		let readBufferGPU = data.readBuffer;
+		let needsUnmap = true;
+
+		if ( readBufferGPU === undefined ) {
+
+			readBufferGPU = device.createBuffer( {
+				label: attribute.name,
+				size,
+				usage: GPUBufferUsage.COPY_DST | GPUBufferUsage.MAP_READ
+			} );
+
+			needsUnmap = false;
+
+			data.readBuffer = readBufferGPU;
+
+		}
+
+		const cmdEncoder = device.createCommandEncoder( {} );
+
+		cmdEncoder.copyBufferToBuffer(
+			bufferGPU,
+			0,
+			readBufferGPU,
+			0,
+			size
+		);
+
+		if ( needsUnmap ) readBufferGPU.unmap();
+
+		const gpuCommands = cmdEncoder.finish();
+		device.queue.submit( [ gpuCommands ] );
+
+		await readBufferGPU.mapAsync( GPUMapMode.READ );
+
+		const arrayBuffer = readBufferGPU.getMappedRange();
+
+		return arrayBuffer;
+
+	}
+
+	_getVertexFormat( geometryAttribute ) {
+
+		const { itemSize, normalized } = geometryAttribute;
+		const ArrayType = geometryAttribute.array.constructor;
+		const AttributeType = geometryAttribute.constructor;
+
+		let format;
+
+		if ( itemSize == 1 ) {
+
+			format = typeArraysToVertexFormatPrefixForItemSize1.get( ArrayType );
+
+		} else {
+
+			const prefixOptions = typedAttributeToVertexFormatPrefix.get( AttributeType ) || typedArraysToVertexFormatPrefix.get( ArrayType );
+			const prefix = prefixOptions[ normalized ? 1 : 0 ];
+
+			if ( prefix ) {
+
+				const bytesPerUnit = ArrayType.BYTES_PER_ELEMENT * itemSize;
+				const paddedBytesPerUnit = Math.floor( ( bytesPerUnit + 3 ) / 4 ) * 4;
+				const paddedItemSize = paddedBytesPerUnit / ArrayType.BYTES_PER_ELEMENT;
+
+				if ( paddedItemSize % 1 ) {
+
+					throw new Error( 'THREE.WebGPUAttributeUtils: Bad vertex format item size.' );
+
+				}
+
+				format = `${prefix}x${paddedItemSize}`;
+
+			}
+
+		}
+
+		if ( ! format ) {
+
+			console.error( 'THREE.WebGPUAttributeUtils: Vertex format not supported yet.' );
+
+		}
+
+		return format;
+
+	}
+
+	_getBufferAttribute( attribute ) {
+
+		if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
+
+		return attribute;
+
+	}
+
+}
+
+export default WebGPUAttributeUtils;

public/sdk/three/jsm/renderers/webgpu/utils/WebGPUBindingUtils.js

@@ -0,0 +1,258 @@
+import {
+	GPUTextureAspect, GPUTextureViewDimension, GPUBufferBindingType, GPUTextureSampleType
+} from './WebGPUConstants.js';
+import { FloatType, IntType, UnsignedIntType } from 'three';
+
+class WebGPUBindingUtils {
+
+	constructor( backend ) {
+
+		this.backend = backend;
+
+	}
+
+	createBindingsLayout( bindings ) {
+
+		const backend = this.backend;
+		const device = backend.device;
+
+		const entries = [];
+
+		let index = 0;
+
+		for ( const binding of bindings ) {
+
+			const bindingGPU = {
+				binding: index ++,
+				visibility: binding.visibility
+			};
+
+			if ( binding.isUniformBuffer || binding.isStorageBuffer ) {
+
+				const buffer = {}; // GPUBufferBindingLayout
+
+				if ( binding.isStorageBuffer ) {
+
+					buffer.type = GPUBufferBindingType.Storage;
+
+				}
+
+				bindingGPU.buffer = buffer;
+
+			} else if ( binding.isSampler ) {
+
+				const sampler = {}; // GPUSamplerBindingLayout
+
+				if ( binding.texture.isDepthTexture ) {
+
+					if ( binding.texture.compareFunction !== null ) {
+
+						sampler.type = 'comparison';
+
+					}
+
+				}
+
+				bindingGPU.sampler = sampler;
+
+			} else if ( binding.isSampledTexture && binding.texture.isVideoTexture ) {
+
+				bindingGPU.externalTexture = {}; // GPUExternalTextureBindingLayout
+
+			} else if ( binding.isSampledTexture && binding.store ) {
+
+				const format = this.backend.get( binding.texture ).texture.format;
+
+				bindingGPU.storageTexture = { format }; // GPUStorageTextureBindingLayout
+
+			} else if ( binding.isSampledTexture ) {
+
+				const texture = {}; // GPUTextureBindingLayout
+
+				if ( binding.texture.isDepthTexture ) {
+
+					texture.sampleType = GPUTextureSampleType.Depth;
+
+				} else if ( binding.texture.isDataTexture ) {
+
+					const type = binding.texture.type;
+
+					if ( type === IntType ) {
+
+						texture.sampleType = GPUTextureSampleType.SInt;
+
+					} else if ( type === UnsignedIntType ) {
+
+						texture.sampleType = GPUTextureSampleType.UInt;
+
+					} else if ( type === FloatType ) {
+
+						// @TODO: Add support for this soon: backend.hasFeature( 'float32-filterable' )
+
+						texture.sampleType = GPUTextureSampleType.UnfilterableFloat;
+
+					}
+
+				}
+
+				if ( binding.isSampledCubeTexture ) {
+
+					texture.viewDimension = GPUTextureViewDimension.Cube;
+
+				} else if ( binding.texture.isDataArrayTexture ) {
+
+					texture.viewDimension = GPUTextureViewDimension.TwoDArray;
+
+				}
+
+				bindingGPU.texture = texture;
+
+			} else {
+
+				console.error( `WebGPUBindingUtils: Unsupported binding "${ binding }".` );
+
+			}
+
+			entries.push( bindingGPU );
+
+		}
+
+		return device.createBindGroupLayout( { entries } );
+
+	}
+
+	createBindings( bindings ) {
+
+		const backend = this.backend;
+		const bindingsData = backend.get( bindings );
+
+		// setup (static) binding layout and (dynamic) binding group
+
+		const bindLayoutGPU = this.createBindingsLayout( bindings );
+		const bindGroupGPU = this.createBindGroup( bindings, bindLayoutGPU );
+
+		bindingsData.layout = bindLayoutGPU;
+		bindingsData.group = bindGroupGPU;
+		bindingsData.bindings = bindings;
+
+	}
+
+	updateBinding( binding ) {
+
+		const backend = this.backend;
+		const device = backend.device;
+
+		const buffer = binding.buffer;
+		const bufferGPU = backend.get( binding ).buffer;
+
+		device.queue.writeBuffer( bufferGPU, 0, buffer, 0 );
+
+	}
+
+	createBindGroup( bindings, layoutGPU ) {
+
+		const backend = this.backend;
+		const device = backend.device;
+
+		let bindingPoint = 0;
+		const entriesGPU = [];
+
+		for ( const binding of bindings ) {
+
+			if ( binding.isUniformBuffer ) {
+
+				const bindingData = backend.get( binding );
+
+				if ( bindingData.buffer === undefined ) {
+
+					const byteLength = binding.byteLength;
+
+					const usage = GPUBufferUsage.UNIFORM | GPUBufferUsage.COPY_DST;
+
+					const bufferGPU = device.createBuffer( {
+						label: 'bindingBuffer_' + binding.name,
+						size: byteLength,
+						usage: usage
+					} );
+
+					bindingData.buffer = bufferGPU;
+
+				}
+
+				entriesGPU.push( { binding: bindingPoint, resource: { buffer: bindingData.buffer } } );
+
+			} else if ( binding.isStorageBuffer ) {
+
+				const bindingData = backend.get( binding );
+
+				if ( bindingData.buffer === undefined ) {
+
+					const attribute = binding.attribute;
+					//const usage = GPUBufferUsage.STORAGE | GPUBufferUsage.VERTEX | /*GPUBufferUsage.COPY_SRC |*/ GPUBufferUsage.COPY_DST;
+
+					//backend.attributeUtils.createAttribute( attribute, usage ); // @TODO: Move it to universal renderer
+
+					bindingData.buffer = backend.get( attribute ).buffer;
+
+				}
+
+				entriesGPU.push( { binding: bindingPoint, resource: { buffer: bindingData.buffer } } );
+
+			} else if ( binding.isSampler ) {
+
+				const textureGPU = backend.get( binding.texture );
+
+				entriesGPU.push( { binding: bindingPoint, resource: textureGPU.sampler } );
+
+			} else if ( binding.isSampledTexture ) {
+
+				const textureData = backend.get( binding.texture );
+
+				let dimensionViewGPU;
+
+				if ( binding.isSampledCubeTexture ) {
+
+					dimensionViewGPU = GPUTextureViewDimension.Cube;
+
+				} else if ( binding.texture.isDataArrayTexture ) {
+
+					dimensionViewGPU = GPUTextureViewDimension.TwoDArray;
+
+				} else {
+
+					dimensionViewGPU = GPUTextureViewDimension.TwoD;
+
+				}
+
+				let resourceGPU;
+
+				if ( textureData.externalTexture !== undefined ) {
+
+					resourceGPU = device.importExternalTexture( { source: textureData.externalTexture } );
+
+				} else {
+
+					const aspectGPU = GPUTextureAspect.All;
+
+					resourceGPU = textureData.texture.createView( { aspect: aspectGPU, dimension: dimensionViewGPU, mipLevelCount: binding.store ? 1 : textureData.mipLevelCount } );
+
+				}
+
+				entriesGPU.push( { binding: bindingPoint, resource: resourceGPU } );
+
+			}
+
+			bindingPoint ++;
+
+		}
+
+		return device.createBindGroup( {
+			layout: layoutGPU,
+			entries: entriesGPU
+		} );
+
+	}
+
+}
+
+export default WebGPUBindingUtils;

public/sdk/three/jsm/renderers/webgpu/utils/WebGPUConstants.js

@@ -0,0 +1,324 @@
+export const GPUPrimitiveTopology = {
+	PointList: 'point-list',
+	LineList: 'line-list',
+	LineStrip: 'line-strip',
+	TriangleList: 'triangle-list',
+	TriangleStrip: 'triangle-strip',
+};
+
+export const GPUCompareFunction = {
+	Never: 'never',
+	Less: 'less',
+	Equal: 'equal',
+	LessEqual: 'less-equal',
+	Greater: 'greater',
+	NotEqual: 'not-equal',
+	GreaterEqual: 'greater-equal',
+	Always: 'always'
+};
+
+export const GPUStoreOp = {
+	Store: 'store',
+	Discard: 'discard'
+};
+
+export const GPULoadOp = {
+	Load: 'load',
+	Clear: 'clear'
+};
+
+export const GPUFrontFace = {
+	CCW: 'ccw',
+	CW: 'cw'
+};
+
+export const GPUCullMode = {
+	None: 'none',
+	Front: 'front',
+	Back: 'back'
+};
+
+export const GPUIndexFormat = {
+	Uint16: 'uint16',
+	Uint32: 'uint32'
+};
+
+export const GPUVertexFormat = {
+	Uint8x2: 'uint8x2',
+	Uint8x4: 'uint8x4',
+	Sint8x2: 'sint8x2',
+	Sint8x4: 'sint8x4',
+	Unorm8x2: 'unorm8x2',
+	Unorm8x4: 'unorm8x4',
+	Snorm8x2: 'snorm8x2',
+	Snorm8x4: 'snorm8x4',
+	Uint16x2: 'uint16x2',
+	Uint16x4: 'uint16x4',
+	Sint16x2: 'sint16x2',
+	Sint16x4: 'sint16x4',
+	Unorm16x2: 'unorm16x2',
+	Unorm16x4: 'unorm16x4',
+	Snorm16x2: 'snorm16x2',
+	Snorm16x4: 'snorm16x4',
+	Float16x2: 'float16x2',
+	Float16x4: 'float16x4',
+	Float32: 'float32',
+	Float32x2: 'float32x2',
+	Float32x3: 'float32x3',
+	Float32x4: 'float32x4',
+	Uint32: 'uint32',
+	Uint32x2: 'uint32x2',
+	Uint32x3: 'uint32x3',
+	Uint32x4: 'uint32x4',
+	Sint32: 'sint32',
+	Sint32x2: 'sint32x2',
+	Sint32x3: 'sint32x3',
+	Sint32x4: 'sint32x4'
+};
+
+export const GPUTextureFormat = {
+
+	// 8-bit formats
+
+	R8Unorm: 'r8unorm',
+	R8Snorm: 'r8snorm',
+	R8Uint: 'r8uint',
+	R8Sint: 'r8sint',
+
+	// 16-bit formats
+
+	R16Uint: 'r16uint',
+	R16Sint: 'r16sint',
+	R16Float: 'r16float',
+	RG8Unorm: 'rg8unorm',
+	RG8Snorm: 'rg8snorm',
+	RG8Uint: 'rg8uint',
+	RG8Sint: 'rg8sint',
+
+	// 32-bit formats
+
+	R32Uint: 'r32uint',
+	R32Sint: 'r32sint',
+	R32Float: 'r32float',
+	RG16Uint: 'rg16uint',
+	RG16Sint: 'rg16sint',
+	RG16Float: 'rg16float',
+	RGBA8Unorm: 'rgba8unorm',
+	RGBA8UnormSRGB: 'rgba8unorm-srgb',
+	RGBA8Snorm: 'rgba8snorm',
+	RGBA8Uint: 'rgba8uint',
+	RGBA8Sint: 'rgba8sint',
+	BGRA8Unorm: 'bgra8unorm',
+	BGRA8UnormSRGB: 'bgra8unorm-srgb',
+	// Packed 32-bit formats
+	RGB9E5UFloat: 'rgb9e5ufloat',
+	RGB10A2Unorm: 'rgb10a2unorm',
+	RG11B10uFloat: 'rgb10a2unorm',
+
+	// 64-bit formats
+
+	RG32Uint: 'rg32uint',
+	RG32Sint: 'rg32sint',
+	RG32Float: 'rg32float',
+	RGBA16Uint: 'rgba16uint',
+	RGBA16Sint: 'rgba16sint',
+	RGBA16Float: 'rgba16float',
+
+	// 128-bit formats
+
+	RGBA32Uint: 'rgba32uint',
+	RGBA32Sint: 'rgba32sint',
+	RGBA32Float: 'rgba32float',
+
+	// Depth and stencil formats
+
+	Stencil8: 'stencil8',
+	Depth16Unorm: 'depth16unorm',
+	Depth24Plus: 'depth24plus',
+	Depth24PlusStencil8: 'depth24plus-stencil8',
+	Depth32Float: 'depth32float',
+
+	// 'depth32float-stencil8' extension
+
+	Depth32FloatStencil8: 'depth32float-stencil8',
+
+	// BC compressed formats usable if 'texture-compression-bc' is both
+	// supported by the device/user agent and enabled in requestDevice.
+
+	BC1RGBAUnorm: 'bc1-rgba-unorm',
+	BC1RGBAUnormSRGB: 'bc1-rgba-unorm-srgb',
+	BC2RGBAUnorm: 'bc2-rgba-unorm',
+	BC2RGBAUnormSRGB: 'bc2-rgba-unorm-srgb',
+	BC3RGBAUnorm: 'bc3-rgba-unorm',
+	BC3RGBAUnormSRGB: 'bc3-rgba-unorm-srgb',
+	BC4RUnorm: 'bc4-r-unorm',
+	BC4RSnorm: 'bc4-r-snorm',
+	BC5RGUnorm: 'bc5-rg-unorm',
+	BC5RGSnorm: 'bc5-rg-snorm',
+	BC6HRGBUFloat: 'bc6h-rgb-ufloat',
+	BC6HRGBFloat: 'bc6h-rgb-float',
+	BC7RGBAUnorm: 'bc7-rgba-unorm',
+	BC7RGBAUnormSRGB: 'bc7-rgba-srgb',
+
+	// ETC2 compressed formats usable if 'texture-compression-etc2' is both
+	// supported by the device/user agent and enabled in requestDevice.
+
+	ETC2RGB8Unorm: 'etc2-rgb8unorm',
+	ETC2RGB8UnormSRGB: 'etc2-rgb8unorm-srgb',
+	ETC2RGB8A1Unorm: 'etc2-rgb8a1unorm',
+	ETC2RGB8A1UnormSRGB: 'etc2-rgb8a1unorm-srgb',
+	ETC2RGBA8Unorm: 'etc2-rgba8unorm',
+	ETC2RGBA8UnormSRGB: 'etc2-rgba8unorm-srgb',
+	EACR11Unorm: 'eac-r11unorm',
+	EACR11Snorm: 'eac-r11snorm',
+	EACRG11Unorm: 'eac-rg11unorm',
+	EACRG11Snorm: 'eac-rg11snorm',
+
+	// ASTC compressed formats usable if 'texture-compression-astc' is both
+	// supported by the device/user agent and enabled in requestDevice.
+
+	ASTC4x4Unorm: 'astc-4x4-unorm',
+	ASTC4x4UnormSRGB: 'astc-4x4-unorm-srgb',
+	ASTC5x4Unorm: 'astc-5x4-unorm',
+	ASTC5x4UnormSRGB: 'astc-5x4-unorm-srgb',
+	ASTC5x5Unorm: 'astc-5x5-unorm',
+	ASTC5x5UnormSRGB: 'astc-5x5-unorm-srgb',
+	ASTC6x5Unorm: 'astc-6x5-unorm',
+	ASTC6x5UnormSRGB: 'astc-6x5-unorm-srgb',
+	ASTC6x6Unorm: 'astc-6x6-unorm',
+	ASTC6x6UnormSRGB: 'astc-6x6-unorm-srgb',
+	ASTC8x5Unorm: 'astc-8x5-unorm',
+	ASTC8x5UnormSRGB: 'astc-8x5-unorm-srgb',
+	ASTC8x6Unorm: 'astc-8x6-unorm',
+	ASTC8x6UnormSRGB: 'astc-8x6-unorm-srgb',
+	ASTC8x8Unorm: 'astc-8x8-unorm',
+	ASTC8x8UnormSRGB: 'astc-8x8-unorm-srgb',
+	ASTC10x5Unorm: 'astc-10x5-unorm',
+	ASTC10x5UnormSRGB: 'astc-10x5-unorm-srgb',
+	ASTC10x6Unorm: 'astc-10x6-unorm',
+	ASTC10x6UnormSRGB: 'astc-10x6-unorm-srgb',
+	ASTC10x8Unorm: 'astc-10x8-unorm',
+	ASTC10x8UnormSRGB: 'astc-10x8-unorm-srgb',
+	ASTC10x10Unorm: 'astc-10x10-unorm',
+	ASTC10x10UnormSRGB: 'astc-10x10-unorm-srgb',
+	ASTC12x10Unorm: 'astc-12x10-unorm',
+	ASTC12x10UnormSRGB: 'astc-12x10-unorm-srgb',
+	ASTC12x12Unorm: 'astc-12x12-unorm',
+	ASTC12x12UnormSRGB: 'astc-12x12-unorm-srgb',
+
+};
+
+export const GPUAddressMode = {
+	ClampToEdge: 'clamp-to-edge',
+	Repeat: 'repeat',
+	MirrorRepeat: 'mirror-repeat'
+};
+
+export const GPUFilterMode = {
+	Linear: 'linear',
+	Nearest: 'nearest'
+};
+
+export const GPUBlendFactor = {
+	Zero: 'zero',
+	One: 'one',
+	Src: 'src',
+	OneMinusSrc: 'one-minus-src',
+	SrcAlpha: 'src-alpha',
+	OneMinusSrcAlpha: 'one-minus-src-alpha',
+	Dst: 'dst',
+	OneMinusDstColor: 'one-minus-dst',
+	DstAlpha: 'dst-alpha',
+	OneMinusDstAlpha: 'one-minus-dst-alpha',
+	SrcAlphaSaturated: 'src-alpha-saturated',
+	Constant: 'constant',
+	OneMinusConstant: 'one-minus-constant'
+};
+
+export const GPUBlendOperation = {
+	Add: 'add',
+	Subtract: 'subtract',
+	ReverseSubtract: 'reverse-subtract',
+	Min: 'min',
+	Max: 'max'
+};
+
+export const GPUColorWriteFlags = {
+	None: 0,
+	Red: 0x1,
+	Green: 0x2,
+	Blue: 0x4,
+	Alpha: 0x8,
+	All: 0xF
+};
+
+export const GPUStencilOperation = {
+	Keep: 'keep',
+	Zero: 'zero',
+	Replace: 'replace',
+	Invert: 'invert',
+	IncrementClamp: 'increment-clamp',
+	DecrementClamp: 'decrement-clamp',
+	IncrementWrap: 'increment-wrap',
+	DecrementWrap: 'decrement-wrap'
+};
+
+export const GPUBufferBindingType = {
+	Uniform: 'uniform',
+	Storage: 'storage',
+	ReadOnlyStorage: 'read-only-storage'
+};
+
+export const GPUSamplerBindingType = {
+	Filtering: 'filtering',
+	NonFiltering: 'non-filtering',
+	Comparison: 'comparison'
+};
+
+export const GPUTextureSampleType = {
+	Float: 'float',
+	UnfilterableFloat: 'unfilterable-float',
+	Depth: 'depth',
+	SInt: 'sint',
+	UInt: 'uint'
+};
+
+export const GPUTextureDimension = {
+	OneD: '1d',
+	TwoD: '2d',
+	ThreeD: '3d'
+};
+
+export const GPUTextureViewDimension = {
+	OneD: '1d',
+	TwoD: '2d',
+	TwoDArray: '2d-array',
+	Cube: 'cube',
+	CubeArray: 'cube-array',
+	ThreeD: '3d'
+};
+
+export const GPUTextureAspect = {
+	All: 'all',
+	StencilOnly: 'stencil-only',
+	DepthOnly: 'depth-only'
+};
+
+export const GPUInputStepMode = {
+	Vertex: 'vertex',
+	Instance: 'instance'
+};
+
+export const GPUFeatureName = {
+	DepthClipControl: 'depth-clip-control',
+	Depth32FloatStencil8: 'depth32float-stencil8',
+	TextureCompressionBC: 'texture-compression-bc',
+	TextureCompressionETC2: 'texture-compression-etc2',
+	TextureCompressionASTC: 'texture-compression-astc',
+	TimestampQuery: 'timestamp-query',
+	IndirectFirstInstance: 'indirect-first-instance',
+	ShaderF16: 'shader-f16',
+	RG11B10UFloat: 'rg11b10ufloat-renderable',
+	BGRA8UNormStorage: 'bgra8unorm-storage',
+	Float32Filterable: 'float32-filterable'
+};

public/sdk/three/jsm/renderers/webgpu/utils/WebGPUPipelineUtils.js

@@ -0,0 +1,591 @@
+import { BlendColorFactor, OneMinusBlendColorFactor, } from '../../common/Constants.js';
+
+import {
+	GPUFrontFace, GPUCullMode, GPUColorWriteFlags, GPUCompareFunction, GPUBlendFactor, GPUBlendOperation, GPUIndexFormat, GPUStencilOperation
+} from './WebGPUConstants.js';
+
+import {
+	FrontSide, BackSide, DoubleSide,
+	NeverDepth, AlwaysDepth, LessDepth, LessEqualDepth, EqualDepth, GreaterEqualDepth, GreaterDepth, NotEqualDepth,
+	NoBlending, NormalBlending, AdditiveBlending, SubtractiveBlending, MultiplyBlending, CustomBlending,
+	ZeroFactor, OneFactor, SrcColorFactor, OneMinusSrcColorFactor, SrcAlphaFactor, OneMinusSrcAlphaFactor, DstColorFactor,
+	OneMinusDstColorFactor, DstAlphaFactor, OneMinusDstAlphaFactor, SrcAlphaSaturateFactor,
+	AddEquation, SubtractEquation, ReverseSubtractEquation, MinEquation, MaxEquation,
+	KeepStencilOp, ZeroStencilOp, ReplaceStencilOp, InvertStencilOp, IncrementStencilOp, DecrementStencilOp, IncrementWrapStencilOp, DecrementWrapStencilOp,
+	NeverStencilFunc, AlwaysStencilFunc, LessStencilFunc, LessEqualStencilFunc, EqualStencilFunc, GreaterEqualStencilFunc, GreaterStencilFunc, NotEqualStencilFunc
+} from 'three';
+
+class WebGPUPipelineUtils {
+
+	constructor( backend ) {
+
+		this.backend = backend;
+
+	}
+
+	createRenderPipeline( renderObject, promises ) {
+
+		const { object, material, geometry, pipeline } = renderObject;
+		const { vertexProgram, fragmentProgram } = pipeline;
+
+		const backend = this.backend;
+		const device = backend.device;
+		const utils = backend.utils;
+
+		const pipelineData = backend.get( pipeline );
+		const bindingsData = backend.get( renderObject.getBindings() );
+
+		// vertex buffers
+
+		const vertexBuffers = backend.attributeUtils.createShaderVertexBuffers( renderObject );
+
+		// blending
+
+		let blending;
+
+		if ( material.transparent === true && material.blending !== NoBlending ) {
+
+			blending = this._getBlending( material );
+
+		}
+
+		// stencil
+
+		let stencilFront = {};
+
+		if ( material.stencilWrite === true ) {
+
+			stencilFront = {
+				compare: this._getStencilCompare( material ),
+				failOp: this._getStencilOperation( material.stencilFail ),
+				depthFailOp: this._getStencilOperation( material.stencilZFail ),
+				passOp: this._getStencilOperation( material.stencilZPass )
+			};
+
+		}
+
+		const colorWriteMask = this._getColorWriteMask( material );
+
+		const targets = [];
+
+		if ( renderObject.context.textures !== null ) {
+
+			const textures = renderObject.context.textures;
+
+			for ( let i = 0; i < textures.length; i ++ ) {
+
+				const colorFormat = utils.getTextureFormatGPU( textures[ i ] );
+
+				targets.push( {
+					format: colorFormat,
+					blend: blending,
+					writeMask: colorWriteMask
+				} );
+
+			}
+
+		} else {
+
+			const colorFormat = utils.getCurrentColorFormat( renderObject.context );
+
+			targets.push( {
+				format: colorFormat,
+				blend: blending,
+				writeMask: colorWriteMask
+			} );
+
+		}
+
+		const vertexModule = backend.get( vertexProgram ).module;
+		const fragmentModule = backend.get( fragmentProgram ).module;
+
+		const primitiveState = this._getPrimitiveState( object, geometry, material );
+		const depthCompare = this._getDepthCompare( material );
+		const depthStencilFormat = utils.getCurrentDepthStencilFormat( renderObject.context );
+		let sampleCount = utils.getSampleCount( renderObject.context );
+
+		if ( sampleCount > 1 ) {
+
+			// WebGPU only supports power-of-two sample counts and 2 is not a valid value
+			sampleCount = Math.pow( 2, Math.floor( Math.log2( sampleCount ) ) );
+
+			if ( sampleCount === 2 ) {
+
+				sampleCount = 4;
+
+			}
+
+		}
+
+		const pipelineDescriptor = {
+			vertex: Object.assign( {}, vertexModule, { buffers: vertexBuffers } ),
+			fragment: Object.assign( {}, fragmentModule, { targets } ),
+			primitive: primitiveState,
+			depthStencil: {
+				format: depthStencilFormat,
+				depthWriteEnabled: material.depthWrite,
+				depthCompare: depthCompare,
+				stencilFront: stencilFront,
+				stencilBack: {}, // three.js does not provide an API to configure the back function (gl.stencilFuncSeparate() was never used)
+				stencilReadMask: material.stencilFuncMask,
+				stencilWriteMask: material.stencilWriteMask
+			},
+			multisample: {
+				count: sampleCount,
+				alphaToCoverageEnabled: material.alphaToCoverage
+			},
+			layout: device.createPipelineLayout( {
+				bindGroupLayouts: [ bindingsData.layout ]
+			} )
+		};
+
+		if ( promises === null ) {
+
+			pipelineData.pipeline = device.createRenderPipeline( pipelineDescriptor );
+
+		} else {
+
+			const p = new Promise( ( resolve /*, reject*/ ) => {
+
+				device.createRenderPipelineAsync( pipelineDescriptor ).then( pipeline => {
+
+					pipelineData.pipeline = pipeline;
+					resolve();
+
+				} );
+
+			} );
+
+			promises.push( p );
+
+		}
+
+	}
+
+	createComputePipeline( pipeline, bindings ) {
+
+		const backend = this.backend;
+		const device = backend.device;
+
+		const computeProgram = backend.get( pipeline.computeProgram ).module;
+
+		const pipelineGPU = backend.get( pipeline );
+		const bindingsData = backend.get( bindings );
+
+		pipelineGPU.pipeline = device.createComputePipeline( {
+			compute: computeProgram,
+			layout: device.createPipelineLayout( {
+				bindGroupLayouts: [ bindingsData.layout ]
+			} )
+		} );
+
+	}
+
+	_getBlending( material ) {
+
+		let color, alpha;
+
+		const blending = material.blending;
+
+		if ( blending === CustomBlending ) {
+
+			const blendSrcAlpha = material.blendSrcAlpha !== null ? material.blendSrcAlpha : GPUBlendFactor.One;
+			const blendDstAlpha = material.blendDstAlpha !== null ? material.blendDstAlpha : GPUBlendFactor.Zero;
+			const blendEquationAlpha = material.blendEquationAlpha !== null ? material.blendEquationAlpha : GPUBlendFactor.Add;
+
+			color = {
+				srcFactor: this._getBlendFactor( material.blendSrc ),
+				dstFactor: this._getBlendFactor( material.blendDst ),
+				operation: this._getBlendOperation( material.blendEquation )
+			};
+
+			alpha = {
+				srcFactor: this._getBlendFactor( blendSrcAlpha ),
+				dstFactor: this._getBlendFactor( blendDstAlpha ),
+				operation: this._getBlendOperation( blendEquationAlpha )
+			};
+
+		} else {
+
+			const premultipliedAlpha = material.premultipliedAlpha;
+
+			const setBlend = ( srcRGB, dstRGB, srcAlpha, dstAlpha ) => {
+
+				color = {
+					srcFactor: srcRGB,
+					dstFactor: dstRGB,
+					operation: GPUBlendOperation.Add
+				};
+
+				alpha = {
+					srcFactor: srcAlpha,
+					dstFactor: dstAlpha,
+					operation: GPUBlendOperation.Add
+				};
+
+			};
+
+			if ( premultipliedAlpha ) {
+
+				switch ( blending ) {
+
+					case NormalBlending:
+						setBlend( GPUBlendFactor.SrcAlpha, GPUBlendFactor.OneMinusSrcAlpha, GPUBlendFactor.One, GPUBlendFactor.OneMinusSrcAlpha );
+						break;
+
+					case AdditiveBlending:
+						setBlend( GPUBlendFactor.SrcAlpha, GPUBlendFactor.One, GPUBlendFactor.One, GPUBlendFactor.One );
+						break;
+
+					case SubtractiveBlending:
+						setBlend( GPUBlendFactor.Zero, GPUBlendFactor.OneMinusSrc, GPUBlendFactor.Zero, GPUBlendFactor.One );
+						break;
+
+					case MultiplyBlending:
+						setBlend( GPUBlendFactor.Zero, GPUBlendFactor.Src, GPUBlendFactor.Zero, GPUBlendFactor.SrcAlpha );
+						break;
+
+				}
+
+			} else {
+
+				switch ( blending ) {
+
+					case NormalBlending:
+						setBlend( GPUBlendFactor.SrcAlpha, GPUBlendFactor.OneMinusSrcAlpha, GPUBlendFactor.One, GPUBlendFactor.OneMinusSrcAlpha );
+						break;
+
+					case AdditiveBlending:
+						setBlend( GPUBlendFactor.SrcAlpha, GPUBlendFactor.One, GPUBlendFactor.SrcAlpha, GPUBlendFactor.One );
+						break;
+
+					case SubtractiveBlending:
+						setBlend( GPUBlendFactor.Zero, GPUBlendFactor.OneMinusSrc, GPUBlendFactor.Zero, GPUBlendFactor.One );
+						break;
+
+					case MultiplyBlending:
+						setBlend( GPUBlendFactor.Zero, GPUBlendFactor.Src, GPUBlendFactor.Zero, GPUBlendFactor.Src );
+						break;
+
+				}
+
+			}
+
+		}
+
+		if ( color !== undefined && alpha !== undefined ) {
+
+			return { color, alpha };
+
+		} else {
+
+			console.error( 'THREE.WebGPURenderer: Invalid blending: ', blending );
+
+		}
+
+	}
+
+	_getBlendFactor( blend ) {
+
+		let blendFactor;
+
+		switch ( blend ) {
+
+			case ZeroFactor:
+				blendFactor = GPUBlendFactor.Zero;
+				break;
+
+			case OneFactor:
+				blendFactor = GPUBlendFactor.One;
+				break;
+
+			case SrcColorFactor:
+				blendFactor = GPUBlendFactor.Src;
+				break;
+
+			case OneMinusSrcColorFactor:
+				blendFactor = GPUBlendFactor.OneMinusSrc;
+				break;
+
+			case SrcAlphaFactor:
+				blendFactor = GPUBlendFactor.SrcAlpha;
+				break;
+
+			case OneMinusSrcAlphaFactor:
+				blendFactor = GPUBlendFactor.OneMinusSrcAlpha;
+				break;
+
+			case DstColorFactor:
+				blendFactor = GPUBlendFactor.Dst;
+				break;
+
+			case OneMinusDstColorFactor:
+				blendFactor = GPUBlendFactor.OneMinusDstColor;
+				break;
+
+			case DstAlphaFactor:
+				blendFactor = GPUBlendFactor.DstAlpha;
+				break;
+
+			case OneMinusDstAlphaFactor:
+				blendFactor = GPUBlendFactor.OneMinusDstAlpha;
+				break;
+
+			case SrcAlphaSaturateFactor:
+				blendFactor = GPUBlendFactor.SrcAlphaSaturated;
+				break;
+
+			case BlendColorFactor:
+				blendFactor = GPUBlendFactor.Constant;
+				break;
+
+			case OneMinusBlendColorFactor:
+				blendFactor = GPUBlendFactor.OneMinusConstant;
+				break;
+
+			default:
+				console.error( 'THREE.WebGPURenderer: Blend factor not supported.', blend );
+
+		}
+
+		return blendFactor;
+
+	}
+
+	_getStencilCompare( material ) {
+
+		let stencilCompare;
+
+		const stencilFunc = material.stencilFunc;
+
+		switch ( stencilFunc ) {
+
+			case NeverStencilFunc:
+				stencilCompare = GPUCompareFunction.Never;
+				break;
+
+			case AlwaysStencilFunc:
+				stencilCompare = GPUCompareFunction.Always;
+				break;
+
+			case LessStencilFunc:
+				stencilCompare = GPUCompareFunction.Less;
+				break;
+
+			case LessEqualStencilFunc:
+				stencilCompare = GPUCompareFunction.LessEqual;
+				break;
+
+			case EqualStencilFunc:
+				stencilCompare = GPUCompareFunction.Equal;
+				break;
+
+			case GreaterEqualStencilFunc:
+				stencilCompare = GPUCompareFunction.GreaterEqual;
+				break;
+
+			case GreaterStencilFunc:
+				stencilCompare = GPUCompareFunction.Greater;
+				break;
+
+			case NotEqualStencilFunc:
+				stencilCompare = GPUCompareFunction.NotEqual;
+				break;
+
+			default:
+				console.error( 'THREE.WebGPURenderer: Invalid stencil function.', stencilFunc );
+
+		}
+
+		return stencilCompare;
+
+	}
+
+	_getStencilOperation( op ) {
+
+		let stencilOperation;
+
+		switch ( op ) {
+
+			case KeepStencilOp:
+				stencilOperation = GPUStencilOperation.Keep;
+				break;
+
+			case ZeroStencilOp:
+				stencilOperation = GPUStencilOperation.Zero;
+				break;
+
+			case ReplaceStencilOp:
+				stencilOperation = GPUStencilOperation.Replace;
+				break;
+
+			case InvertStencilOp:
+				stencilOperation = GPUStencilOperation.Invert;
+				break;
+
+			case IncrementStencilOp:
+				stencilOperation = GPUStencilOperation.IncrementClamp;
+				break;
+
+			case DecrementStencilOp:
+				stencilOperation = GPUStencilOperation.DecrementClamp;
+				break;
+
+			case IncrementWrapStencilOp:
+				stencilOperation = GPUStencilOperation.IncrementWrap;
+				break;
+
+			case DecrementWrapStencilOp:
+				stencilOperation = GPUStencilOperation.DecrementWrap;
+				break;
+
+			default:
+				console.error( 'THREE.WebGPURenderer: Invalid stencil operation.', stencilOperation );
+
+		}
+
+		return stencilOperation;
+
+	}
+
+	_getBlendOperation( blendEquation ) {
+
+		let blendOperation;
+
+		switch ( blendEquation ) {
+
+			case AddEquation:
+				blendOperation = GPUBlendOperation.Add;
+				break;
+
+			case SubtractEquation:
+				blendOperation = GPUBlendOperation.Subtract;
+				break;
+
+			case ReverseSubtractEquation:
+				blendOperation = GPUBlendOperation.ReverseSubtract;
+				break;
+
+			case MinEquation:
+				blendOperation = GPUBlendOperation.Min;
+				break;
+
+			case MaxEquation:
+				blendOperation = GPUBlendOperation.Max;
+				break;
+
+			default:
+				console.error( 'THREE.WebGPUPipelineUtils: Blend equation not supported.', blendEquation );
+
+		}
+
+		return blendOperation;
+
+	}
+
+	_getPrimitiveState( object, geometry, material ) {
+
+		const descriptor = {};
+		const utils = this.backend.utils;
+
+		descriptor.topology = utils.getPrimitiveTopology( object, material );
+
+		if ( geometry.index !== null && object.isLine === true && object.isLineSegments !== true ) {
+
+			descriptor.stripIndexFormat = ( geometry.index.array instanceof Uint16Array ) ? GPUIndexFormat.Uint16 : GPUIndexFormat.Uint32;
+
+		}
+
+		switch ( material.side ) {
+
+			case FrontSide:
+				descriptor.frontFace = GPUFrontFace.CCW;
+				descriptor.cullMode = GPUCullMode.Back;
+				break;
+
+			case BackSide:
+				descriptor.frontFace = GPUFrontFace.CCW;
+				descriptor.cullMode = GPUCullMode.Front;
+				break;
+
+			case DoubleSide:
+				descriptor.frontFace = GPUFrontFace.CCW;
+				descriptor.cullMode = GPUCullMode.None;
+				break;
+
+			default:
+				console.error( 'THREE.WebGPUPipelineUtils: Unknown material.side value.', material.side );
+				break;
+
+		}
+
+		return descriptor;
+
+	}
+
+	_getColorWriteMask( material ) {
+
+		return ( material.colorWrite === true ) ? GPUColorWriteFlags.All : GPUColorWriteFlags.None;
+
+	}
+
+	_getDepthCompare( material ) {
+
+		let depthCompare;
+
+		if ( material.depthTest === false ) {
+
+			depthCompare = GPUCompareFunction.Always;
+
+		} else {
+
+			const depthFunc = material.depthFunc;
+
+			switch ( depthFunc ) {
+
+				case NeverDepth:
+					depthCompare = GPUCompareFunction.Never;
+					break;
+
+				case AlwaysDepth:
+					depthCompare = GPUCompareFunction.Always;
+					break;
+
+				case LessDepth:
+					depthCompare = GPUCompareFunction.Less;
+					break;
+
+				case LessEqualDepth:
+					depthCompare = GPUCompareFunction.LessEqual;
+					break;
+
+				case EqualDepth:
+					depthCompare = GPUCompareFunction.Equal;
+					break;
+
+				case GreaterEqualDepth:
+					depthCompare = GPUCompareFunction.GreaterEqual;
+					break;
+
+				case GreaterDepth:
+					depthCompare = GPUCompareFunction.Greater;
+					break;
+
+				case NotEqualDepth:
+					depthCompare = GPUCompareFunction.NotEqual;
+					break;
+
+				default:
+					console.error( 'THREE.WebGPUPipelineUtils: Invalid depth function.', depthFunc );
+
+			}
+
+		}
+
+		return depthCompare;
+
+	}
+
+}
+
+export default WebGPUPipelineUtils;

public/sdk/three/jsm/renderers/webgpu/utils/WebGPUTexturePassUtils.js

@@ -0,0 +1,285 @@
+import { GPUTextureViewDimension, GPUIndexFormat, GPUFilterMode, GPUPrimitiveTopology, GPULoadOp, GPUStoreOp } from './WebGPUConstants.js';
+
+class WebGPUTexturePassUtils {
+
+	constructor( device ) {
+
+		this.device = device;
+
+		const mipmapVertexSource = `
+struct VarysStruct {
+	@builtin( position ) Position: vec4<f32>,
+	@location( 0 ) vTex : vec2<f32>
+};
+
+@vertex
+fn main( @builtin( vertex_index ) vertexIndex : u32 ) -> VarysStruct {
+
+	var Varys : VarysStruct;
+
+	var pos = array< vec2<f32>, 4 >(
+		vec2<f32>( -1.0,  1.0 ),
+		vec2<f32>(  1.0,  1.0 ),
+		vec2<f32>( -1.0, -1.0 ),
+		vec2<f32>(  1.0, -1.0 )
+	);
+
+	var tex = array< vec2<f32>, 4 >(
+		vec2<f32>( 0.0, 0.0 ),
+		vec2<f32>( 1.0, 0.0 ),
+		vec2<f32>( 0.0, 1.0 ),
+		vec2<f32>( 1.0, 1.0 )
+	);
+
+	Varys.vTex = tex[ vertexIndex ];
+	Varys.Position = vec4<f32>( pos[ vertexIndex ], 0.0, 1.0 );
+
+	return Varys;
+
+}
+`;
+
+		const mipmapFragmentSource = `
+@group( 0 ) @binding( 0 )
+var imgSampler : sampler;
+
+@group( 0 ) @binding( 1 )
+var img : texture_2d<f32>;
+
+@fragment
+fn main( @location( 0 ) vTex : vec2<f32> ) -> @location( 0 ) vec4<f32> {
+
+	return textureSample( img, imgSampler, vTex );
+
+}
+`;
+
+		const flipYFragmentSource = `
+@group( 0 ) @binding( 0 )
+var imgSampler : sampler;
+
+@group( 0 ) @binding( 1 )
+var img : texture_2d<f32>;
+
+@fragment
+fn main( @location( 0 ) vTex : vec2<f32> ) -> @location( 0 ) vec4<f32> {
+
+	return textureSample( img, imgSampler, vec2( vTex.x, 1.0 - vTex.y ) );
+
+}
+`;
+		this.mipmapSampler = device.createSampler( { minFilter: GPUFilterMode.Linear } );
+		this.flipYSampler = device.createSampler( { minFilter: GPUFilterMode.Nearest } ); //@TODO?: Consider using textureLoad()
+
+		// We'll need a new pipeline for every texture format used.
+		this.transferPipelines = {};
+		this.flipYPipelines = {};
+
+		this.mipmapVertexShaderModule = device.createShaderModule( {
+			label: 'mipmapVertex',
+			code: mipmapVertexSource
+		} );
+
+		this.mipmapFragmentShaderModule = device.createShaderModule( {
+			label: 'mipmapFragment',
+			code: mipmapFragmentSource
+		} );
+
+		this.flipYFragmentShaderModule = device.createShaderModule( {
+			label: 'flipYFragment',
+			code: flipYFragmentSource
+		} );
+
+	}
+
+	getTransferPipeline( format ) {
+
+		let pipeline = this.transferPipelines[ format ];
+
+		if ( pipeline === undefined ) {
+
+			pipeline = this.device.createRenderPipeline( {
+				vertex: {
+					module: this.mipmapVertexShaderModule,
+					entryPoint: 'main'
+				},
+				fragment: {
+					module: this.mipmapFragmentShaderModule,
+					entryPoint: 'main',
+					targets: [ { format } ]
+				},
+				primitive: {
+					topology: GPUPrimitiveTopology.TriangleStrip,
+					stripIndexFormat: GPUIndexFormat.Uint32
+				},
+				layout: 'auto'
+			} );
+
+			this.transferPipelines[ format ] = pipeline;
+
+		}
+
+		return pipeline;
+
+	}
+
+	getFlipYPipeline( format ) {
+
+		let pipeline = this.flipYPipelines[ format ];
+
+		if ( pipeline === undefined ) {
+
+			pipeline = this.device.createRenderPipeline( {
+				vertex: {
+					module: this.mipmapVertexShaderModule,
+					entryPoint: 'main'
+				},
+				fragment: {
+					module: this.flipYFragmentShaderModule,
+					entryPoint: 'main',
+					targets: [ { format } ]
+				},
+				primitive: {
+					topology: GPUPrimitiveTopology.TriangleStrip,
+					stripIndexFormat: GPUIndexFormat.Uint32
+				},
+				layout: 'auto'
+			} );
+
+			this.flipYPipelines[ format ] = pipeline;
+
+		}
+
+		return pipeline;
+
+	}
+
+	flipY( textureGPU, textureGPUDescriptor, baseArrayLayer = 0 ) {
+
+		const format = textureGPUDescriptor.format;
+		const { width, height } = textureGPUDescriptor.size;
+
+		const transferPipeline = this.getTransferPipeline( format );
+		const flipYPipeline = this.getFlipYPipeline( format );
+
+		const tempTexture = this.device.createTexture( {
+			size: { width, height, depthOrArrayLayers: 1 },
+			format,
+			usage: GPUTextureUsage.RENDER_ATTACHMENT | GPUTextureUsage.TEXTURE_BINDING
+		} );
+
+		const srcView = textureGPU.createView( {
+			baseMipLevel: 0,
+			mipLevelCount: 1,
+			dimension: GPUTextureViewDimension.TwoD,
+			baseArrayLayer
+		} );
+
+		const dstView = tempTexture.createView( {
+			baseMipLevel: 0,
+			mipLevelCount: 1,
+			dimension: GPUTextureViewDimension.TwoD,
+			baseArrayLayer: 0
+		} );
+
+		const commandEncoder = this.device.createCommandEncoder( {} );
+
+		const pass = ( pipeline, sourceView, destinationView ) => {
+
+			const bindGroupLayout = pipeline.getBindGroupLayout( 0 ); // @TODO: Consider making this static.
+
+			const bindGroup = this.device.createBindGroup( {
+				layout: bindGroupLayout,
+				entries: [ {
+					binding: 0,
+					resource: this.flipYSampler
+				}, {
+					binding: 1,
+					resource: sourceView
+				} ]
+			} );
+
+			const passEncoder = commandEncoder.beginRenderPass( {
+				colorAttachments: [ {
+					view: destinationView,
+					loadOp: GPULoadOp.Clear,
+					storeOp: GPUStoreOp.Store,
+					clearValue: [ 0, 0, 0, 0 ]
+				} ]
+			} );
+
+			passEncoder.setPipeline( pipeline );
+			passEncoder.setBindGroup( 0, bindGroup );
+			passEncoder.draw( 4, 1, 0, 0 );
+			passEncoder.end();
+
+		};
+
+		pass( transferPipeline, srcView, dstView );
+		pass( flipYPipeline, dstView, srcView );
+
+		this.device.queue.submit( [ commandEncoder.finish() ] );
+
+		tempTexture.destroy();
+
+	}
+
+	generateMipmaps( textureGPU, textureGPUDescriptor, baseArrayLayer = 0 ) {
+
+		const pipeline = this.getTransferPipeline( textureGPUDescriptor.format );
+
+		const commandEncoder = this.device.createCommandEncoder( {} );
+		const bindGroupLayout = pipeline.getBindGroupLayout( 0 ); // @TODO: Consider making this static.
+
+		let srcView = textureGPU.createView( {
+			baseMipLevel: 0,
+			mipLevelCount: 1,
+			dimension: GPUTextureViewDimension.TwoD,
+			baseArrayLayer
+		} );
+
+		for ( let i = 1; i < textureGPUDescriptor.mipLevelCount; i ++ ) {
+
+			const bindGroup = this.device.createBindGroup( {
+				layout: bindGroupLayout,
+				entries: [ {
+					binding: 0,
+					resource: this.mipmapSampler
+				}, {
+					binding: 1,
+					resource: srcView
+				} ]
+			} );
+
+			const dstView = textureGPU.createView( {
+				baseMipLevel: i,
+				mipLevelCount: 1,
+				dimension: GPUTextureViewDimension.TwoD,
+				baseArrayLayer
+			} );
+
+			const passEncoder = commandEncoder.beginRenderPass( {
+				colorAttachments: [ {
+					view: dstView,
+					loadOp: GPULoadOp.Clear,
+					storeOp: GPUStoreOp.Store,
+					clearValue: [ 0, 0, 0, 0 ]
+				} ]
+			} );
+
+			passEncoder.setPipeline( pipeline );
+			passEncoder.setBindGroup( 0, bindGroup );
+			passEncoder.draw( 4, 1, 0, 0 );
+			passEncoder.end();
+
+			srcView = dstView;
+
+		}
+
+		this.device.queue.submit( [ commandEncoder.finish() ] );
+
+	}
+
+}
+
+export default WebGPUTexturePassUtils;

public/sdk/three/jsm/renderers/webgpu/utils/WebGPUUtils.js

@@ -0,0 +1,93 @@
+import { GPUPrimitiveTopology, GPUTextureFormat } from './WebGPUConstants.js';
+
+class WebGPUUtils {
+
+	constructor( backend ) {
+
+		this.backend = backend;
+
+	}
+
+	getCurrentDepthStencilFormat( renderContext ) {
+
+		let format;
+
+		if ( renderContext.depthTexture !== null ) {
+
+			format = this.getTextureFormatGPU( renderContext.depthTexture );
+
+		} else if ( renderContext.depth && renderContext.stencil ) {
+
+			format = GPUTextureFormat.Depth24PlusStencil8;
+
+		} else if ( renderContext.depth ) {
+
+			format = GPUTextureFormat.Depth24Plus;
+
+		}
+
+		return format;
+
+	}
+
+	getTextureFormatGPU( texture ) {
+
+		return this.backend.get( texture ).texture.format;
+
+	}
+
+	getCurrentColorFormat( renderContext ) {
+
+		let format;
+
+		if ( renderContext.textures !== null ) {
+
+			format = this.getTextureFormatGPU( renderContext.textures[ 0 ] );
+
+
+		} else {
+
+			format = GPUTextureFormat.BGRA8Unorm; // default context format
+
+		}
+
+		return format;
+
+	}
+
+	getCurrentColorSpace( renderContext ) {
+
+		if ( renderContext.textures !== null ) {
+
+			return renderContext.textures[ 0 ].colorSpace;
+
+		}
+
+		return this.backend.renderer.outputColorSpace;
+
+	}
+
+	getPrimitiveTopology( object, material ) {
+
+		if ( object.isPoints ) return GPUPrimitiveTopology.PointList;
+		else if ( object.isLineSegments || ( object.isMesh && material.wireframe === true ) ) return GPUPrimitiveTopology.LineList;
+		else if ( object.isLine ) return GPUPrimitiveTopology.LineStrip;
+		else if ( object.isMesh ) return GPUPrimitiveTopology.TriangleList;
+
+	}
+
+	getSampleCount( renderContext ) {
+
+		if ( renderContext.textures !== null ) {
+
+			return renderContext.sampleCount;
+
+		}
+
+		return this.backend.parameters.sampleCount;
+
+	}
+
+}
+
+export default WebGPUUtils;