添加关照、全局等高线、修改图层问题

static/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;