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- import SpotLightNode from './SpotLightNode.js';
- import { addLightNode } from './LightsNode.js';
- import { texture } from '../accessors/TextureNode.js';
- import { vec2 } from '../shadernode/ShaderNode.js';
- import { addNodeClass } from '../core/Node.js';
- import IESSpotLight from '../../lights/IESSpotLight.js';
- class IESSpotLightNode extends SpotLightNode {
- getSpotAttenuation( angleCosine ) {
- const iesMap = this.light.iesMap;
- let spotAttenuation = null;
- if ( iesMap && iesMap.isTexture === true ) {
- const angle = angleCosine.acos().mul( 1.0 / Math.PI );
- spotAttenuation = texture( iesMap, vec2( angle, 0 ), 0 ).r;
- } else {
- spotAttenuation = super.getSpotAttenuation( angleCosine );
- }
- return spotAttenuation;
- }
- }
- export default IESSpotLightNode;
- addNodeClass( 'IESSpotLightNode', IESSpotLightNode );
- addLightNode( IESSpotLight, IESSpotLightNode );
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