<!-- NEW7 — TEST 7 · THE WOVEN CITY · part 403 -->

				if ( isMultipleRenderTargets ) {

					for ( let i = 0; i < textures.length; i ++ ) {

						state.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglMultisampledFramebuffer );
						_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0 + i, _gl.RENDERBUFFER, renderTargetProperties.__webglColorRenderbuffer[ i ] );

						const webglTexture = properties.get( textures[ i ] ).__webglTexture;

						state.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer );
						_gl.framebufferTexture2D( _gl.DRAW_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0 + i, _gl.TEXTURE_2D, webglTexture, 0 );

					}

				}

				state.bindFramebuffer( _gl.DRAW_FRAMEBUFFER, renderTargetProperties.__webglMultisampledFramebuffer );

			} else {

				if ( renderTarget.depthBuffer && renderTarget.storeMultisampledDepthBuffer === false && supportsInvalidateFramebuffer ) {

					const depthStyle = renderTarget.stencilBuffer ? _gl.DEPTH_STENCIL_ATTACHMENT : _gl.DEPTH_ATTACHMENT;

					_gl.invalidateFramebuffer( _gl.DRAW_FRAMEBUFFER, [ depthStyle ] );

				}

			}

		}

	}

	function getRenderTargetSamples( renderTarget ) {

		return Math.min( capabilities.maxSamples, renderTarget.samples );

	}

	function useMultisampledRTT( renderTarget ) {

		const renderTargetProperties = properties.get( renderTarget );

		return renderTarget.samples > 0 && extensions.has( 'WEBGL_multisampled_render_to_texture' ) === true && renderTargetProperties.__useRenderToTexture !== false;

	}

	function updateVideoTexture( texture ) {

		const frame = info.render.frame;

		// Check the last frame we updated the VideoTexture

		if ( _videoTextures.get( texture ) !== frame ) {

			_videoTextures.set( texture, frame );
			texture.update();

		}

	}

	function verifyColorSpace( texture, image ) {

		const colorSpace = texture.colorSpace;
		const format = texture.format;
		const type = texture.type;

		if ( texture.isCompressedTexture === true || texture.isVideoTexture === true ) return image;

		if ( colorSpace !== LinearSRGBColorSpace && colorSpace !== NoColorSpace ) {

			// sRGB

			if ( ColorManagement.getTransfer( colorSpace ) === SRGBTransfer ) {

				// in WebGL 2 uncompressed textures can only be sRGB encoded if they have the RGBA8 format

				if ( format !== RGBAFormat || type !== UnsignedByteType ) {

					warn( 'WebGLTextures: sRGB encoded textures have to use RGBAFormat and UnsignedByteType.' );

				}

			} else {

				error( 'WebGLTextures: Unsupported texture color space:', colorSpace );

			}

		}

		return image;

	}

	function getDimensions( image ) {

		if ( typeof HTMLImageElement !== 'undefined' && image instanceof HTMLImageElement ) {

			// if intrinsic data are not available, fallback to width/height

			_imageDimensions.width = image.naturalWidth || image.width;
			_imageDimensions.height = image.naturalHeight || image.height;

		} else if ( typeof VideoFrame !== 'undefined' && image instanceof VideoFrame ) {

			_imageDimensions.width = image.displayWidth;
			_imageDimensions.height = image.displayHeight;

		} else {

			_imageDimensions.width = image.width;
			_imageDimensions.height = image.height;

		}

		return _imageDimensions;

	}

	//

	this.allocateTextureUnit = allocateTextureUnit;
	this.resetTextureUnits = resetTextureUnits;
	this.getTextureUnits = getTextureUnits;
	this.setTextureUnits = setTextureUnits;

	this.setTexture2D = setTexture2D;
	this.setTexture2DArray = setTexture2DArray;
	this.setTexture3D = setTexture3D;
	this.setTextureCube = setTextureCube;
	this.rebindTextures = rebindTextures;
	this.setupRenderTarget = setupRenderTarget;
	this.updateRenderTargetMipmap = updateRenderTargetMipmap;
	this.updateMultisampleRenderTarget = updateMultisampleRenderTarget;
	this.setupDepthRenderbuffer = setupDepthRenderbuffer;
	this.setupFrameBufferTexture = setupFrameBufferTexture;
	this.useMultisampledRTT = useMultisampledRTT;

	this.isReversedDepthBuffer = function () {

		return state.buffers.depth.getReversed();

	};

}

function WebGLUtils( gl, extensions ) {

	function convert( p, colorSpace = NoColorSpace ) {

		let extension;

		const transfer = ColorManagement.getTransfer( colorSpace );

		if ( p === UnsignedByteType ) return gl.UNSIGNED_BYTE;
		if ( p === UnsignedShort4444Type ) return gl.UNSIGNED_SHORT_4_4_4_4;
		if ( p === UnsignedShort5551Type ) return gl.UNSIGNED_SHORT_5_5_5_1;
		if ( p === UnsignedInt5999Type ) return gl.UNSIGNED_INT_5_9_9_9_REV;
		if ( p === UnsignedInt101111Type ) return gl.UNSIGNED_INT_10F_11F_11F_REV;

		if ( p === ByteType ) return gl.BYTE;
		if ( p === ShortType ) return gl.SHORT;
		if ( p === UnsignedShortType ) return gl.UNSIGNED_SHORT;
		if ( p === IntType ) return gl.INT;
		if ( p === UnsignedIntType ) return gl.UNSIGNED_INT;
		if ( p === FloatType ) return gl.FLOAT;
		if ( p === HalfFloatType ) return gl.HALF_FLOAT;

		if ( p === AlphaFormat ) return gl.ALPHA;
		if ( p === RGBFormat ) return gl.RGB;
		if