import { Texture } from './Texture.js';
import { NearestFilter, UnsignedIntType, UnsignedInt248Type, DepthFormat, DepthStencilFormat } from '../constants.js';
class DepthTexture extends Texture {
constructor( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format = DepthFormat ) {
if ( format !== DepthFormat && format !== DepthStencilFormat ) {
throw new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' );
}
if ( type === undefined && format === DepthFormat ) type = UnsignedIntType;
if ( type === undefined && format === DepthStencilFormat ) type = UnsignedInt248Type;
super( null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );
this.isDepthTexture = true;
this.image = { width: width, height: height };
this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
this.flipY = false;
this.generateMipmaps = false;
this.compareFunction = null;
}
copy( source ) {
super.copy( source );
this.compareFunction = source.compareFunction;
return this;
}
toJSON( meta ) {
const data = super.toJSON( meta );
if ( this.compareFunction !== null ) data.compareFunction = this.compareFunction;
return data;
}
}
export { DepthTexture };