import { LightShadow } from './LightShadow.js';
import { RAD2DEG } 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 = 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 };