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import {
CubeTexture,
DataTexture,
FileLoader,
FloatType,
HalfFloatType,
LinearFilter,
LinearSRGBColorSpace,
Loader
} from 'three';
import { RGBELoader } from '../loaders/RGBELoader.js';
class HDRCubeTextureLoader extends Loader {
constructor( manager ) {
super( manager );
this.hdrLoader = new RGBELoader();
this.type = HalfFloatType;
}
load( urls, onLoad, onProgress, onError ) {
const texture = new CubeTexture();
texture.type = this.type;
switch ( texture.type ) {
case FloatType:
texture.colorSpace = LinearSRGBColorSpace;
texture.minFilter = LinearFilter;
texture.magFilter = LinearFilter;
texture.generateMipmaps = false;
break;
case HalfFloatType:
texture.colorSpace = LinearSRGBColorSpace;
texture.minFilter = LinearFilter;
texture.magFilter = LinearFilter;
texture.generateMipmaps = false;
break;
}
const scope = this;
let loaded = 0;
function loadHDRData( i, onLoad, onProgress, onError ) {
new FileLoader( scope.manager )
.setPath( scope.path )
.setResponseType( 'arraybuffer' )
.setWithCredentials( scope.withCredentials )
.load( urls[ i ], function ( buffer ) {
loaded ++;
const texData = scope.hdrLoader.parse( buffer );
if ( ! texData ) return;
if ( texData.data !== undefined ) {
const dataTexture = new DataTexture( texData.data, texData.width, texData.height );
dataTexture.type = texture.type;
dataTexture.colorSpace = texture.colorSpace;
dataTexture.format = texture.format;
dataTexture.minFilter = texture.minFilter;
dataTexture.magFilter = texture.magFilter;
dataTexture.generateMipmaps = texture.generateMipmaps;
texture.images[ i ] = dataTexture;
}
if ( loaded === 6 ) {
texture.needsUpdate = true;
if ( onLoad ) onLoad( texture );
}
}, onProgress, onError );
}
for ( let i = 0; i < urls.length; i ++ ) {
loadHDRData( i, onLoad, onProgress, onError );
}
return texture;
}
setDataType( value ) {
this.type = value;
this.hdrLoader.setDataType( value );
return this;
}
}
export { HDRCubeTextureLoader };