大屏添加cesium

public/sdk/three/jsm/nodes/materials/MeshSSSNodeMaterial.js

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+import { addNodeMaterial } from './NodeMaterial.js';
+import { transformedNormalView } from '../accessors/NormalNode.js';
+import { positionViewDirection } from '../accessors/PositionNode.js';
+import PhysicalLightingModel from '../functions/PhysicalLightingModel.js';
+import MeshPhysicalNodeMaterial from './MeshPhysicalNodeMaterial.js';
+import { float, vec3 } from '../shadernode/ShaderNode.js';
+
+class SSSLightingModel extends PhysicalLightingModel {
+
+	constructor( useClearcoat, useSheen, useIridescence, useSSS ) {
+
+		super( useClearcoat, useSheen, useIridescence );
+
+		this.useSSS = useSSS;
+
+	}
+
+	direct( { lightDirection, lightColor, reflectedLight }, stack, builder ) {
+
+		if ( this.useSSS === true ) {
+
+			const material = builder.material;
+
+			const { thicknessColorNode, thicknessDistortionNode, thicknessAmbientNode, thicknessAttenuationNode, thicknessPowerNode, thicknessScaleNode } = material;
+
+			const scatteringHalf = lightDirection.add( transformedNormalView.mul( thicknessDistortionNode ) ).normalize();
+			const scatteringDot = float( positionViewDirection.dot( scatteringHalf.negate() ).saturate().pow( thicknessPowerNode ).mul( thicknessScaleNode ) );
+			const scatteringIllu = vec3( scatteringDot.add( thicknessAmbientNode ).mul( thicknessColorNode ) );
+
+			reflectedLight.directDiffuse.addAssign( scatteringIllu.mul( thicknessAttenuationNode.mul( lightColor ) ) );
+
+		}
+
+		super.direct( { lightDirection, lightColor, reflectedLight }, stack, builder );
+
+	}
+
+}
+
+class MeshSSSNodeMaterial extends MeshPhysicalNodeMaterial {
+
+	constructor( parameters ) {
+
+		super( parameters );
+
+		this.thicknessColorNode = null;
+		this.thicknessDistortionNode = float( 0.1 );
+		this.thicknessAmbientNode = float( 0.0 );
+		this.thicknessAttenuationNode = float( .1 );
+		this.thicknessPowerNode = float( 2.0 );
+		this.thicknessScaleNode = float( 10.0 );
+
+	}
+
+	get useSSS() {
+
+		return this.thicknessColorNode !== null;
+
+	}
+
+	setupLightingModel( /*builder*/ ) {
+
+		return new SSSLightingModel( this.useClearcoat, this.useSheen, this.useIridescence, this.useSSS );
+
+	}
+
+	copy( source ) {
+
+		this.thicknessColorNode = source.thicknessColorNode;
+		this.thicknessDistortionNode = source.thicknessDistortionNode;
+		this.thicknessAmbientNode = source.thicknessAmbientNode;
+		this.thicknessAttenuationNode = source.thicknessAttenuationNode;
+		this.thicknessPowerNode = source.thicknessPowerNode;
+		this.thicknessScaleNode = source.thicknessScaleNode;
+
+		return super.copy( source );
+
+	}
+
+}
+
+export default MeshSSSNodeMaterial;
+
+addNodeMaterial( 'MeshSSSNodeMaterial', MeshSSSNodeMaterial );