44 lines
891 B
JavaScript
44 lines
891 B
JavaScript
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import { LightShadow } from './LightShadow.js';
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import { _Math } from '../math/Math.js';
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import { PerspectiveCamera } from '../cameras/PerspectiveCamera.js';
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/**
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* @author mrdoob / http://mrdoob.com/
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*/
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function SpotLightShadow() {
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LightShadow.call( this, new PerspectiveCamera( 50, 1, 0.5, 500 ) );
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}
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SpotLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {
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constructor: SpotLightShadow,
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isSpotLightShadow: true,
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update: function ( light ) {
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var camera = this.camera;
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var fov = _Math.RAD2DEG * 2 * light.angle;
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var aspect = this.mapSize.width / this.mapSize.height;
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var far = light.distance || camera.far;
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if ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) {
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camera.fov = fov;
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camera.aspect = aspect;
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camera.far = far;
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camera.updateProjectionMatrix();
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}
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}
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} );
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export { SpotLightShadow };
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