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TextureUtils: Fix invalid texture data after decompression. #27137

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merged 1 commit into from
Nov 7, 2023
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TextureUtils: Fix invalid texture data after decompression. #27137

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19 changes: 15 additions & 4 deletions examples/jsm/utils/TextureUtils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ import {
PerspectiveCamera,
Scene,
WebGLRenderer,
Texture,
CanvasTexture,
SRGBColorSpace
} from 'three';

Expand Down Expand Up @@ -56,17 +56,28 @@ export function decompress( texture, maxTextureSize = Infinity, renderer = null
const _scene = new Scene();
_scene.add( fullscreenQuad );

if ( ! renderer ) {
if ( renderer === null ) {

renderer = _renderer = new WebGLRenderer( { antialias: false } );

}

renderer.setSize( Math.min( texture.image.width, maxTextureSize ), Math.min( texture.image.height, maxTextureSize ) );
const width = Math.min( texture.image.width, maxTextureSize );
const height = Math.min( texture.image.height, maxTextureSize );

renderer.setSize( width, height );
renderer.clear();
renderer.render( _scene, _camera );

const readableTexture = new Texture( renderer.domElement );
const canvas = document.createElement( 'canvas' );
const context = canvas.getContext( '2d' );

canvas.width = width;
canvas.height = height;

context.drawImage( renderer.domElement, 0, 0, width, height );

const readableTexture = new CanvasTexture( canvas );

readableTexture.minFilter = texture.minFilter;
readableTexture.magFilter = texture.magFilter;
Expand Down