添加关照、全局等高线、修改图层问题

static/sdk/three/jsm/nodes/display/NormalMapNode.js

@@ -0,0 +1,106 @@
+import TempNode from '../core/TempNode.js';
+import { add } from '../math/OperatorNode.js';
+
+import { modelNormalMatrix } from '../accessors/ModelNode.js';
+import { normalView } from '../accessors/NormalNode.js';
+import { positionView } from '../accessors/PositionNode.js';
+import { TBNViewMatrix } from '../accessors/AccessorsUtils.js';
+import { uv } from '../accessors/UVNode.js';
+import { faceDirection } from './FrontFacingNode.js';
+import { addNodeClass } from '../core/Node.js';
+import { addNodeElement, tslFn, nodeProxy, vec3 } from '../shadernode/ShaderNode.js';
+
+import { TangentSpaceNormalMap, ObjectSpaceNormalMap } from 'three';
+
+// Normal Mapping Without Precomputed Tangents
+// http://www.thetenthplanet.de/archives/1180
+
+const perturbNormal2Arb = tslFn( ( inputs ) => {
+
+	const { eye_pos, surf_norm, mapN, uv } = inputs;
+
+	const q0 = eye_pos.dFdx();
+	const q1 = eye_pos.dFdy();
+	const st0 = uv.dFdx();
+	const st1 = uv.dFdy();
+
+	const N = surf_norm; // normalized
+
+	const q1perp = q1.cross( N );
+	const q0perp = N.cross( q0 );
+
+	const T = q1perp.mul( st0.x ).add( q0perp.mul( st1.x ) );
+	const B = q1perp.mul( st0.y ).add( q0perp.mul( st1.y ) );
+
+	const det = T.dot( T ).max( B.dot( B ) );
+	const scale = faceDirection.mul( det.inverseSqrt() );
+
+	return add( T.mul( mapN.x, scale ), B.mul( mapN.y, scale ), N.mul( mapN.z ) ).normalize();
+
+} );
+
+class NormalMapNode extends TempNode {
+
+	constructor( node, scaleNode = null ) {
+
+		super( 'vec3' );
+
+		this.node = node;
+		this.scaleNode = scaleNode;
+
+		this.normalMapType = TangentSpaceNormalMap;
+
+	}
+
+	setup( builder ) {
+
+		const { normalMapType, scaleNode } = this;
+
+		let normalMap = this.node.mul( 2.0 ).sub( 1.0 );
+
+		if ( scaleNode !== null ) {
+
+			normalMap = vec3( normalMap.xy.mul( scaleNode ), normalMap.z );
+
+		}
+
+		let outputNode = null;
+
+		if ( normalMapType === ObjectSpaceNormalMap ) {
+
+			outputNode = modelNormalMatrix.mul( normalMap ).normalize();
+
+		} else if ( normalMapType === TangentSpaceNormalMap ) {
+
+			const tangent = builder.hasGeometryAttribute( 'tangent' );
+
+			if ( tangent === true ) {
+
+				outputNode = TBNViewMatrix.mul( normalMap ).normalize();
+
+			} else {
+
+				outputNode = perturbNormal2Arb( {
+					eye_pos: positionView,
+					surf_norm: normalView,
+					mapN: normalMap,
+					uv: uv()
+				} );
+
+			}
+
+		}
+
+		return outputNode;
+
+	}
+
+}
+
+export default NormalMapNode;
+
+export const normalMap = nodeProxy( NormalMapNode );
+
+addNodeElement( 'normalMap', normalMap );
+
+addNodeClass( 'NormalMapNode', NormalMapNode );