最新代码

public/sdk/three/jsm/nodes/lighting/HemisphereLightNode.js

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+import AnalyticLightNode from './AnalyticLightNode.js';
+import { addLightNode } from './LightsNode.js';
+import { uniform } from '../core/UniformNode.js';
+import { mix } from '../math/MathNode.js';
+import { normalView } from '../accessors/NormalNode.js';
+import { objectPosition } from '../accessors/Object3DNode.js';
+import { addNodeClass } from '../core/Node.js';
+
+import { Color, HemisphereLight } from 'three';
+
+class HemisphereLightNode extends AnalyticLightNode {
+
+	constructor( light = null ) {
+
+		super( light );
+
+		this.lightPositionNode = objectPosition( light );
+		this.lightDirectionNode = this.lightPositionNode.normalize();
+
+		this.groundColorNode = uniform( new Color() );
+
+	}
+
+	update( frame ) {
+
+		const { light } = this;
+
+		super.update( frame );
+
+		this.lightPositionNode.object3d = light;
+
+		this.groundColorNode.value.copy( light.groundColor ).multiplyScalar( light.intensity );
+
+	}
+
+	setup( builder ) {
+
+		const { colorNode, groundColorNode, lightDirectionNode } = this;
+
+		const dotNL = normalView.dot( lightDirectionNode );
+		const hemiDiffuseWeight = dotNL.mul( 0.5 ).add( 0.5 );
+
+		const irradiance = mix( groundColorNode, colorNode, hemiDiffuseWeight );
+
+		builder.context.irradiance.addAssign( irradiance );
+
+	}
+
+}
+
+export default HemisphereLightNode;
+
+addNodeClass( 'HemisphereLightNode', HemisphereLightNode );
+
+addLightNode( HemisphereLight, HemisphereLightNode );