WebGLTextures: Store source version in properties object. (#24599)

src/renderers/webgl/WebGLTextures.js

@@ -684,7 +684,9 @@ function WebGLTextures( _gl, extensions, state, properties, capabilities, utils,
 		state.activeTexture( _gl.TEXTURE0 + slot );
 		state.bindTexture( textureType, textureProperties.__webglTexture );
 
-		if ( source.version !== source.__currentVersion || forceUpload === true ) {
+		const sourceProperties = properties.get( source );
+
+		if ( source.version !== sourceProperties.__version || forceUpload === true ) {
 
 			_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );
 			_gl.pixelStorei( _gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha );
@@ -707,7 +709,7 @@ function WebGLTextures( _gl, extensions, state, properties, capabilities, utils,
 			const mipmaps = texture.mipmaps;
 
 			const useTexStorage = ( isWebGL2 && texture.isVideoTexture !== true );
-			const allocateMemory = ( source.__currentVersion === undefined ) || ( forceUpload === true );
+			const allocateMemory = ( sourceProperties.__version === undefined ) || ( forceUpload === true );
 			const levels = getMipLevels( texture, image, supportsMips );
 
 			if ( texture.isDepthTexture ) {
@@ -1023,7 +1025,7 @@ function WebGLTextures( _gl, extensions, state, properties, capabilities, utils,
 
 			}
 
-			source.__currentVersion = source.version;
+			sourceProperties.__version = source.version;
 
 			if ( texture.onUpdate ) texture.onUpdate( texture );
 
@@ -1043,7 +1045,9 @@ function WebGLTextures( _gl, extensions, state, properties, capabilities, utils,
 		state.activeTexture( _gl.TEXTURE0 + slot );
 		state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture );
 
-		if ( source.version !== source.__currentVersion || forceUpload === true ) {
+		const sourceProperties = properties.get( source );
+
+		if ( source.version !== sourceProperties.__version || forceUpload === true ) {
 
 			_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );
 			_gl.pixelStorei( _gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha );
@@ -1078,7 +1082,7 @@ function WebGLTextures( _gl, extensions, state, properties, capabilities, utils,
 				glInternalFormat = getInternalFormat( texture.internalFormat, glFormat, glType, texture.encoding );
 
 			const useTexStorage = ( isWebGL2 && texture.isVideoTexture !== true );
-			const allocateMemory = ( source.__currentVersion === undefined ) || ( forceUpload === true );
+			const allocateMemory = ( sourceProperties.__version === undefined ) || ( forceUpload === true );
 			let levels = getMipLevels( texture, image, supportsMips );
 
 			setTextureParameters( _gl.TEXTURE_CUBE_MAP, texture, supportsMips );
@@ -1227,7 +1231,7 @@ function WebGLTextures( _gl, extensions, state, properties, capabilities, utils,
 
 			}
 
-			source.__currentVersion = source.version;
+			sourceProperties.__version = source.version;
 
 			if ( texture.onUpdate ) texture.onUpdate( texture );