File size: 925 Bytes
b797337 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | 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 };
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