| import { LightShadow } from './LightShadow.js'; | |
| import * as MathUtils from '../math/MathUtils.js'; | |
| import { PerspectiveCamera } from '../cameras/PerspectiveCamera.js'; | |
| class SpotLightShadow extends LightShadow { | |
| constructor() { | |
| super( new PerspectiveCamera( 50, 1, 0.5, 500 ) ); | |
| this.isSpotLightShadow = true; | |
| this.focus = 1; | |
| } | |
| updateMatrices( light ) { | |
| const camera = this.camera; | |
| const fov = MathUtils.RAD2DEG * 2 * light.angle * this.focus; | |
| const aspect = this.mapSize.width / this.mapSize.height; | |
| const far = light.distance || camera.far; | |
| if ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) { | |
| camera.fov = fov; | |
| camera.aspect = aspect; | |
| camera.far = far; | |
| camera.updateProjectionMatrix(); | |
| } | |
| super.updateMatrices( light ); | |
| } | |
| copy( source ) { | |
| super.copy( source ); | |
| this.focus = source.focus; | |
| return this; | |
| } | |
| } | |
| export { SpotLightShadow }; | |