		mcol1.setXYZ( i, me[ 4 ], me[ 5 ], me[ 6 ] );
				mcol2.setXYZ( i, me[ 8 ], me[ 9 ], me[ 10 ] );
				mcol3.setXYZ( i, me[ 12 ], me[ 13 ], me[ 14 ] );

			}
			// igeo.addAttribute( 'matrix', matrices );
			igeo.addAttribute( 'mcol0', mcol0 );
			igeo.addAttribute( 'mcol1', mcol1 );
			igeo.addAttribute( 'mcol2', mcol2 );
			igeo.addAttribute( 'mcol3', mcol3 );

			var randCol = function () {

				return Math.random();

			};
			var colors = new THREE.InstancedBufferAttribute(
				new Float32Array( instanc