remove image -> canvas conversion (#27021)

Co-authored-by: aardgoose <[email protected]>

examples/jsm/renderers/common/Textures.js

@@ -191,7 +191,7 @@ class Textures extends DataMap {
 
 						for ( const image of texture.images ) {
 
-							images.push( this._getUploadImage( image ) );
+							images.push( image );
 
 						}
 
@@ -199,7 +199,7 @@ class Textures extends DataMap {
 
 					} else {
 
-						options.image = this._getUploadImage( image );
+						options.image = image;
 
 					}
 
@@ -317,38 +317,6 @@ class Textures extends DataMap {
 
 	}
 
-	_getUploadImage( image ) {
-
-		if ( this._isHTMLImage( image ) ) {
-
-			return this._imageToCanvas( image );
-
-		}
-
-		return image;
-
-	}
-
-	_imageToCanvas( image ) {
-
-		const { width, height } = image;
-
-		// eslint-disable-next-line compat/compat
-		const canvas = new OffscreenCanvas( width, height );
-
-		const context = canvas.getContext( '2d' );
-		context.drawImage( image, 0, 0, width, height );
-
-		return canvas;
-
-	}
-
-	_isHTMLImage( image ) {
-
-		return ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) || ( typeof HTMLCanvasElement !== 'undefined' && image instanceof HTMLCanvasElement );
-
-	}
-
 	_destroyTexture( texture ) {
 
 		this.backend.destroySampler( texture );

examples/jsm/renderers/webgl/WebGLBackend.js

@@ -522,7 +522,7 @@ class WebGLBackend extends Backend {
 
 				return source.image.data;
 
-			} else if ( source instanceof ImageBitmap || source instanceof OffscreenCanvas ) {
+			} else if ( source instanceof ImageBitmap || source instanceof OffscreenCanvas || source instanceof HTMLImageElement || source instanceof HTMLCanvasElement ) {
 
 				return source;