<!-- AVATAR-FORGE · part 101 -->
tAttributeValues[ name ];

					if ( value !== undefined ) {

						switch ( value.length ) {

							case 2:
								gl.vertexAttrib2fv( programAttribute.location, value );
								break;

							case 3:
								gl.vertexAttrib3fv( programAttribute.location, value );
								break;

							case 4:
								gl.vertexAttrib4fv( programAttribute.location, value );
								break;

							default:
								gl.vertexAttrib1fv( programAttribute.location, value );

						}

					}

				}

			}

		}

		disableUnusedAttributes();

	}

	function dispose() {

		reset();

		for ( const geometryId in bindingStates ) {

			const programMap = bindingStates[ geometryId ];

			for ( const programId in programMap ) {

				const stateMap = programMap[ programId ];

				for ( const wireframe in stateMap ) {

					deleteVertexArrayObject( stateMap[ wireframe ].object );

					delete stateMap[ wireframe ];

				}

				delete programMap[ programId ];

			}

			delete bindingStates[ geometryId ];

		}

	}

	function releaseStatesOfGeometry( geometry ) {

		if ( bindingStates[ geometry.id ] === undefined ) return;

		const programMap = bindingStates[ geometry.id ];

		for ( const programId in programMap ) {

			const stateMap = programMap[ programId ];

			for ( const wireframe in stateMap ) {

				deleteVertexArrayObject( stateMap[ wireframe ].object );

				delete stateMap[ wireframe ];

			}

			delete programMap[ programId ];

		}

		delete bindingStates[ geometry.id ];

	}

	function releaseStatesOfProgram( program ) {

		for ( const geometryId in bindingStates ) {

			const programMap = bindingStates[ geometryId ];

			if ( programMap[ program.id ] === undefined ) continue;

			const stateMap = programMap[ program.id ];

			for ( const wireframe in stateMap ) {

				deleteVertexArrayObject( stateMap[ wireframe ].object );

				delete stateMap[ wireframe ];

			}

			delete programMap[ program.id ];

		}

	}

	function reset() {

		resetDefaultState();
		forceUpdate = true;

		if ( currentState === defaultState ) return;

		currentState = defaultState;
		bindVertexArrayObject( currentState.object );

	}

	// for backward-compatibility

	function resetDefaultState() {

		defaultState.geometry = null;
		defaultState.program = null;
		defaultState.wireframe = false;

	}

	return {

		setup: setup,
		reset: reset,
		resetDefaultState: resetDefaultState,
		dispose: dispose,
		releaseStatesOfGeometry: releaseStatesOfGeometry,
		releaseStatesOfProgram: releaseStatesOfProgram,

		initAttributes: initAttributes,
		enableAttribute: enableAttribute,
		disableUnusedAttributes: disableUnusedAttributes

	};

}

function WebGLBufferRenderer( gl, extensions, info ) {

	let mode;

	function setMode( value ) {

		mode = value;

	}

	function render( start, count ) {

		gl.drawArrays( mode, start, count );

		info.update( count, mode, 1 );

	}

	function renderInstances( start, count, primcount ) {

		if ( primcount === 0 ) return;

		gl.drawArraysInstanced( mode, start, count, primcount );

		info.update( count, mode, primcount );

	}

	function renderMultiDraw( starts, counts, drawCount ) {

		if ( drawCount === 0 ) return;

		const extension = extensions.get( 'WEBGL_multi_draw' );

		if ( extension === null ) {

			for ( let i = 0; i < drawCount; i ++ ) {

				this.render( starts[ i ], counts[ i ] );

			}

		} else {

			extension.multiDrawArraysWEBGL( mode, starts, 0, counts, 0, drawCount );

			let elementCount = 0;
			for ( let i = 0; i < drawCount; i ++ ) {

				elementCount += counts[ i ];

			}

			info.update( elementCount, mode, 1 );

		}

	}

	function renderMultiDrawInstances( starts, counts, drawCount, primcount ) {

		if ( drawCount === 0 ) return;

		const extension = extensions.get( 'WEBGL_multi_draw' );

		if ( extension === null ) {

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

				renderInstances( starts[ i ], counts[ i ], primcount[ i ] );

			}

		} else {

			extension.multiDrawArraysInstancedWEBGL( mode, starts, 0, counts, 0, primcount, 0, drawCount );

			let elementCount = 0;
			for ( let i = 0; i < drawCount; i ++ ) {

				elementCount += counts[ i ];

			}

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

				info.update( elementCount, mode, primcount[ i ] );

			}

		}

	}

	//

	this.setMode = setMode;
	this.render = render;
	this.renderInstances = renderInstances;
	this.renderMultiDraw = renderMultiDraw;
	this.renderMultiDrawInstances = renderMultiDrawInstances;

}

function WebGLCapabilities( gl, extensions, parameters, utils ) {

	let maxAnisotropy;

	function getMaxAnisotropy() {

		if ( maxAnisotropy !== undefined ) return maxAnisotropy;

		if ( extensions.has( 'EXT_texture_filter_anisotropic' ) === true ) {

			const extension = extensions.get( 'EXT_texture_filter_anisotropic' );

			maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );

		} else {

			maxAnisotropy = 0;

		}

		return maxAnisotropy;

	}

	function textureFormatReadable( textureFo