58 lines
1.0 KiB
JavaScript
58 lines
1.0 KiB
JavaScript
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import Node, { addNodeClass } from '../core/Node.js';
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import { nodeProxy } from '../shadernode/ShaderNode.js';
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import { objectPosition } from '../accessors/Object3DNode.js';
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import { cameraViewMatrix } from '../accessors/CameraNode.js';
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class LightNode extends Node {
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constructor( scope = LightNode.TARGET_DIRECTION, light = null ) {
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super();
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this.scope = scope;
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this.light = light;
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}
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setup() {
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const { scope, light } = this;
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let output = null;
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if ( scope === LightNode.TARGET_DIRECTION ) {
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output = cameraViewMatrix.transformDirection( objectPosition( light ).sub( objectPosition( light.target ) ) );
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}
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return output;
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}
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serialize( data ) {
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super.serialize( data );
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data.scope = this.scope;
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}
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deserialize( data ) {
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super.deserialize( data );
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this.scope = data.scope;
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}
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}
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LightNode.TARGET_DIRECTION = 'targetDirection';
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export default LightNode;
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export const lightTargetDirection = nodeProxy( LightNode, LightNode.TARGET_DIRECTION );
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addNodeClass( 'LightNode', LightNode );
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