Removed Face4 stuff from WebGLRenderer.

src/renderers/WebGLRenderer.js

@@ -851,11 +851,10 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 		var geometry = object.geometry,
 			faces3 = geometryGroup.faces3,
-			faces4 = geometryGroup.faces4,
 
-			nvertices = faces3.length * 3 + faces4.length * 4,
-			ntris     = faces3.length * 1 + faces4.length * 2,
-			nlines    = faces3.length * 3 + faces4.length * 4,
+			nvertices = faces3.length * 3,
+			ntris     = faces3.length * 1,
+			nlines    = faces3.length * 3,
 
 			material = getBufferMaterial( object, geometryGroup ),
 
@@ -1851,7 +1850,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 		vertices = geometry.vertices,
 		chunk_faces3 = geometryGroup.faces3,
-		chunk_faces4 = geometryGroup.faces4,
 		obj_faces = geometry.faces,
 
 		obj_uvs  = geometry.faceVertexUvs[ 0 ],
@@ -1891,35 +1889,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 			}
 
-			for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-				face = obj_faces[ chunk_faces4[ f ] ];
-
-				v1 = vertices[ face.a ];
-				v2 = vertices[ face.b ];
-				v3 = vertices[ face.c ];
-				v4 = vertices[ face.d ];
-
-				vertexArray[ offset ]     = v1.x;
-				vertexArray[ offset + 1 ] = v1.y;
-				vertexArray[ offset + 2 ] = v1.z;
-
-				vertexArray[ offset + 3 ] = v2.x;
-				vertexArray[ offset + 4 ] = v2.y;
-				vertexArray[ offset + 5 ] = v2.z;
-
-				vertexArray[ offset + 6 ] = v3.x;
-				vertexArray[ offset + 7 ] = v3.y;
-				vertexArray[ offset + 8 ] = v3.z;
-
-				vertexArray[ offset + 9 ]  = v4.x;
-				vertexArray[ offset + 10 ] = v4.y;
-				vertexArray[ offset + 11 ] = v4.z;
-
-				offset += 12;
-
-			}
-
 			_gl.bindBuffer( _gl.ARRAY_BUFFER, geometryGroup.__webglVertexBuffer );
 			_gl.bufferData( _gl.ARRAY_BUFFER, vertexArray, hint );
 
@@ -1998,84 +1967,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 				}
 
-				for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-					chf = chunk_faces4[ f ];
-					face = obj_faces[ chf ];
-
-					// morph positions
-
-					v1 = morphTargets[ vk ].vertices[ face.a ];
-					v2 = morphTargets[ vk ].vertices[ face.b ];
-					v3 = morphTargets[ vk ].vertices[ face.c ];
-					v4 = morphTargets[ vk ].vertices[ face.d ];
-
-					vka = morphTargetsArrays[ vk ];
-
-					vka[ offset_morphTarget ] 	  = v1.x;
-					vka[ offset_morphTarget + 1 ] = v1.y;
-					vka[ offset_morphTarget + 2 ] = v1.z;
-
-					vka[ offset_morphTarget + 3 ] = v2.x;
-					vka[ offset_morphTarget + 4 ] = v2.y;
-					vka[ offset_morphTarget + 5 ] = v2.z;
-
-					vka[ offset_morphTarget + 6 ] = v3.x;
-					vka[ offset_morphTarget + 7 ] = v3.y;
-					vka[ offset_morphTarget + 8 ] = v3.z;
-
-					vka[ offset_morphTarget + 9 ]  = v4.x;
-					vka[ offset_morphTarget + 10 ] = v4.y;
-					vka[ offset_morphTarget + 11 ] = v4.z;
-
-					// morph normals
-
-					if ( material.morphNormals ) {
-
-						if ( needsSmoothNormals ) {
-
-							faceVertexNormals = morphNormals[ vk ].vertexNormals[ chf ];
-
-							n1 = faceVertexNormals.a;
-							n2 = faceVertexNormals.b;
-							n3 = faceVertexNormals.c;
-							n4 = faceVertexNormals.d;
-
-						} else {
-
-							n1 = morphNormals[ vk ].faceNormals[ chf ];
-							n2 = n1;
-							n3 = n1;
-							n4 = n1;
-
-						}
-
-						nka = morphNormalsArrays[ vk ];
-
-						nka[ offset_morphTarget ] 	  = n1.x;
-						nka[ offset_morphTarget + 1 ] = n1.y;
-						nka[ offset_morphTarget + 2 ] = n1.z;
-
-						nka[ offset_morphTarget + 3 ] = n2.x;
-						nka[ offset_morphTarget + 4 ] = n2.y;
-						nka[ offset_morphTarget + 5 ] = n2.z;
-
-						nka[ offset_morphTarget + 6 ] = n3.x;
-						nka[ offset_morphTarget + 7 ] = n3.y;
-						nka[ offset_morphTarget + 8 ] = n3.z;
-
-						nka[ offset_morphTarget + 9 ]  = n4.x;
-						nka[ offset_morphTarget + 10 ] = n4.y;
-						nka[ offset_morphTarget + 11 ] = n4.z;
-
-					}
-
-					//
-
-					offset_morphTarget += 12;
-
-				}
-
 				_gl.bindBuffer( _gl.ARRAY_BUFFER, geometryGroup.__webglMorphTargetsBuffers[ vk ] );
 				_gl.bufferData( _gl.ARRAY_BUFFER, morphTargetsArrays[ vk ], hint );
 
@@ -2142,68 +2033,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 			}
 
-			for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-				face = obj_faces[ chunk_faces4[ f ] ];
-
-				// weights
-
-				sw1 = obj_skinWeights[ face.a ];
-				sw2 = obj_skinWeights[ face.b ];
-				sw3 = obj_skinWeights[ face.c ];
-				sw4 = obj_skinWeights[ face.d ];
-
-				skinWeightArray[ offset_skin ]     = sw1.x;
-				skinWeightArray[ offset_skin + 1 ] = sw1.y;
-				skinWeightArray[ offset_skin + 2 ] = sw1.z;
-				skinWeightArray[ offset_skin + 3 ] = sw1.w;
-
-				skinWeightArray[ offset_skin + 4 ] = sw2.x;
-				skinWeightArray[ offset_skin + 5 ] = sw2.y;
-				skinWeightArray[ offset_skin + 6 ] = sw2.z;
-				skinWeightArray[ offset_skin + 7 ] = sw2.w;
-
-				skinWeightArray[ offset_skin + 8 ]  = sw3.x;
-				skinWeightArray[ offset_skin + 9 ]  = sw3.y;
-				skinWeightArray[ offset_skin + 10 ] = sw3.z;
-				skinWeightArray[ offset_skin + 11 ] = sw3.w;
-
-				skinWeightArray[ offset_skin + 12 ] = sw4.x;
-				skinWeightArray[ offset_skin + 13 ] = sw4.y;
-				skinWeightArray[ offset_skin + 14 ] = sw4.z;
-				skinWeightArray[ offset_skin + 15 ] = sw4.w;
-
-				// indices
-
-				si1 = obj_skinIndices[ face.a ];
-				si2 = obj_skinIndices[ face.b ];
-				si3 = obj_skinIndices[ face.c ];
-				si4 = obj_skinIndices[ face.d ];
-
-				skinIndexArray[ offset_skin ]     = si1.x;
-				skinIndexArray[ offset_skin + 1 ] = si1.y;
-				skinIndexArray[ offset_skin + 2 ] = si1.z;
-				skinIndexArray[ offset_skin + 3 ] = si1.w;
-
-				skinIndexArray[ offset_skin + 4 ] = si2.x;
-				skinIndexArray[ offset_skin + 5 ] = si2.y;
-				skinIndexArray[ offset_skin + 6 ] = si2.z;
-				skinIndexArray[ offset_skin + 7 ] = si2.w;
-
-				skinIndexArray[ offset_skin + 8 ]  = si3.x;
-				skinIndexArray[ offset_skin + 9 ]  = si3.y;
-				skinIndexArray[ offset_skin + 10 ] = si3.z;
-				skinIndexArray[ offset_skin + 11 ] = si3.w;
-
-				skinIndexArray[ offset_skin + 12 ] = si4.x;
-				skinIndexArray[ offset_skin + 13 ] = si4.y;
-				skinIndexArray[ offset_skin + 14 ] = si4.z;
-				skinIndexArray[ offset_skin + 15 ] = si4.w;
-
-				offset_skin += 16;
-
-			}
-
 			if ( offset_skin > 0 ) {
 
 				_gl.bindBuffer( _gl.ARRAY_BUFFER, geometryGroup.__webglSkinIndicesBuffer );
@@ -2255,49 +2084,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 			}
 
-			for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-				face = obj_faces[ chunk_faces4[ f ] ];
-
-				vertexColors = face.vertexColors;
-				faceColor = face.color;
-
-				if ( vertexColors.length === 4 && vertexColorType === THREE.VertexColors ) {
-
-					c1 = vertexColors[ 0 ];
-					c2 = vertexColors[ 1 ];
-					c3 = vertexColors[ 2 ];
-					c4 = vertexColors[ 3 ];
-
-				} else {
-
-					c1 = faceColor;
-					c2 = faceColor;
-					c3 = faceColor;
-					c4 = faceColor;
-
-				}
-
-				colorArray[ offset_color ]     = c1.r;
-				colorArray[ offset_color + 1 ] = c1.g;
-				colorArray[ offset_color + 2 ] = c1.b;
-
-				colorArray[ offset_color + 3 ] = c2.r;
-				colorArray[ offset_color + 4 ] = c2.g;
-				colorArray[ offset_color + 5 ] = c2.b;
-
-				colorArray[ offset_color + 6 ] = c3.r;
-				colorArray[ offset_color + 7 ] = c3.g;
-				colorArray[ offset_color + 8 ] = c3.b;
-
-				colorArray[ offset_color + 9 ]  = c4.r;
-				colorArray[ offset_color + 10 ] = c4.g;
-				colorArray[ offset_color + 11 ] = c4.b;
-
-				offset_color += 12;
-
-			}
-
 			if ( offset_color > 0 ) {
 
 				_gl.bindBuffer( _gl.ARRAY_BUFFER, geometryGroup.__webglColorBuffer );
@@ -2338,41 +2124,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 			}
 
-			for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-				face = obj_faces[ chunk_faces4[ f ] ];
-
-				vertexTangents = face.vertexTangents;
-
-				t1 = vertexTangents[ 0 ];
-				t2 = vertexTangents[ 1 ];
-				t3 = vertexTangents[ 2 ];
-				t4 = vertexTangents[ 3 ];
-
-				tangentArray[ offset_tangent ]     = t1.x;
-				tangentArray[ offset_tangent + 1 ] = t1.y;
-				tangentArray[ offset_tangent + 2 ] = t1.z;
-				tangentArray[ offset_tangent + 3 ] = t1.w;
-
-				tangentArray[ offset_tangent + 4 ] = t2.x;
-				tangentArray[ offset_tangent + 5 ] = t2.y;
-				tangentArray[ offset_tangent + 6 ] = t2.z;
-				tangentArray[ offset_tangent + 7 ] = t2.w;
-
-				tangentArray[ offset_tangent + 8 ]  = t3.x;
-				tangentArray[ offset_tangent + 9 ]  = t3.y;
-				tangentArray[ offset_tangent + 10 ] = t3.z;
-				tangentArray[ offset_tangent + 11 ] = t3.w;
-
-				tangentArray[ offset_tangent + 12 ] = t4.x;
-				tangentArray[ offset_tangent + 13 ] = t4.y;
-				tangentArray[ offset_tangent + 14 ] = t4.z;
-				tangentArray[ offset_tangent + 15 ] = t4.w;
-
-				offset_tangent += 16;
-
-			}
-
 			_gl.bindBuffer( _gl.ARRAY_BUFFER, geometryGroup.__webglTangentBuffer );
 			_gl.bufferData( _gl.ARRAY_BUFFER, tangentArray, hint );
 
@@ -2417,43 +2168,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 			}
 
-			for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-				face = obj_faces[ chunk_faces4[ f ] ];
-
-				vertexNormals = face.vertexNormals;
-				faceNormal = face.normal;
-
-				if ( vertexNormals.length === 4 && needsSmoothNormals ) {
-
-					for ( i = 0; i < 4; i ++ ) {
-
-						vn = vertexNormals[ i ];
-
-						normalArray[ offset_normal ]     = vn.x;
-						normalArray[ offset_normal + 1 ] = vn.y;
-						normalArray[ offset_normal + 2 ] = vn.z;
-
-						offset_normal += 3;
-
-					}
-
-				} else {
-
-					for ( i = 0; i < 4; i ++ ) {
-
-						normalArray[ offset_normal ]     = faceNormal.x;
-						normalArray[ offset_normal + 1 ] = faceNormal.y;
-						normalArray[ offset_normal + 2 ] = faceNormal.z;
-
-						offset_normal += 3;
-
-					}
-
-				}
-
-			}
-
 			_gl.bindBuffer( _gl.ARRAY_BUFFER, geometryGroup.__webglNormalBuffer );
 			_gl.bufferData( _gl.ARRAY_BUFFER, normalArray, hint );
 
@@ -2482,27 +2196,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 			}
 
-			for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-				fi = chunk_faces4[ f ];
-
-				uv = obj_uvs[ fi ];
-
-				if ( uv === undefined ) continue;
-
-				for ( i = 0; i < 4; i ++ ) {
-
-					uvi = uv[ i ];
-
-					uvArray[ offset_uv ]     = uvi.x;
-					uvArray[ offset_uv + 1 ] = uvi.y;
-
-					offset_uv += 2;
-
-				}
-
-			}
-
 			if ( offset_uv > 0 ) {
 
 				_gl.bindBuffer( _gl.ARRAY_BUFFER, geometryGroup.__webglUVBuffer );
@@ -2535,27 +2228,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 			}
 
-			for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-				fi = chunk_faces4[ f ];
-
-				uv2 = obj_uvs2[ fi ];
-
-				if ( uv2 === undefined ) continue;
-
-				for ( i = 0; i < 4; i ++ ) {
-
-					uv2i = uv2[ i ];
-
-					uv2Array[ offset_uv2 ]     = uv2i.x;
-					uv2Array[ offset_uv2 + 1 ] = uv2i.y;
-
-					offset_uv2 += 2;
-
-				}
-
-			}
-
 			if ( offset_uv2 > 0 ) {
 
 				_gl.bindBuffer( _gl.ARRAY_BUFFER, geometryGroup.__webglUV2Buffer );
@@ -2590,36 +2262,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 			}
 
-			for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-				faceArray[ offset_face ]     = vertexIndex;
-				faceArray[ offset_face + 1 ] = vertexIndex + 1;
-				faceArray[ offset_face + 2 ] = vertexIndex + 3;
-
-				faceArray[ offset_face + 3 ] = vertexIndex + 1;
-				faceArray[ offset_face + 4 ] = vertexIndex + 2;
-				faceArray[ offset_face + 5 ] = vertexIndex + 3;
-
-				offset_face += 6;
-
-				lineArray[ offset_line ]     = vertexIndex;
-				lineArray[ offset_line + 1 ] = vertexIndex + 1;
-
-				lineArray[ offset_line + 2 ] = vertexIndex;
-				lineArray[ offset_line + 3 ] = vertexIndex + 3;
-
-				lineArray[ offset_line + 4 ] = vertexIndex + 1;
-				lineArray[ offset_line + 5 ] = vertexIndex + 2;
-
-				lineArray[ offset_line + 6 ] = vertexIndex + 2;
-				lineArray[ offset_line + 7 ] = vertexIndex + 3;
-
-				offset_line += 8;
-
-				vertexIndex += 4;
-
-			}
-
 			_gl.bindBuffer( _gl.ELEMENT_ARRAY_BUFFER, geometryGroup.__webglFaceBuffer );
 			_gl.bufferData( _gl.ELEMENT_ARRAY_BUFFER, faceArray, hint );
 
@@ -2655,19 +2297,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 						}
 
-						for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-							face = obj_faces[ chunk_faces4[ f ] ];
-
-							customAttribute.array[ offset_custom ] 	   = customAttribute.value[ face.a ];
-							customAttribute.array[ offset_custom + 1 ] = customAttribute.value[ face.b ];
-							customAttribute.array[ offset_custom + 2 ] = customAttribute.value[ face.c ];
-							customAttribute.array[ offset_custom + 3 ] = customAttribute.value[ face.d ];
-
-							offset_custom += 4;
-
-						}
-
 					} else if ( customAttribute.boundTo === "faces" ) {
 
 						for ( f = 0, fl = chunk_faces3.length; f < fl; f ++ ) {
@@ -2682,19 +2311,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 						}
 
-						for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-							value = customAttribute.value[ chunk_faces4[ f ] ];
-
-							customAttribute.array[ offset_custom ] 	   = value;
-							customAttribute.array[ offset_custom + 1 ] = value;
-							customAttribute.array[ offset_custom + 2 ] = value;
-							customAttribute.array[ offset_custom + 3 ] = value;
-
-							offset_custom += 4;
-
-						}
-
 					}
 
 				} else if ( customAttribute.size === 2 ) {
@@ -2722,31 +2338,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 						}
 
-						for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-							face = obj_faces[ chunk_faces4[ f ] ];
-
-							v1 = customAttribute.value[ face.a ];
-							v2 = customAttribute.value[ face.b ];
-							v3 = customAttribute.value[ face.c ];
-							v4 = customAttribute.value[ face.d ];
-
-							customAttribute.array[ offset_custom ] 	   = v1.x;
-							customAttribute.array[ offset_custom + 1 ] = v1.y;
-
-							customAttribute.array[ offset_custom + 2 ] = v2.x;
-							customAttribute.array[ offset_custom + 3 ] = v2.y;
-
-							customAttribute.array[ offset_custom + 4 ] = v3.x;
-							customAttribute.array[ offset_custom + 5 ] = v3.y;
-
-							customAttribute.array[ offset_custom + 6 ] = v4.x;
-							customAttribute.array[ offset_custom + 7 ] = v4.y;
-
-							offset_custom += 8;
-
-						}
-
 					} else if ( customAttribute.boundTo === "faces" ) {
 
 						for ( f = 0, fl = chunk_faces3.length; f < fl; f ++ ) {
@@ -2770,31 +2361,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 						}
 
-						for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-							value = customAttribute.value[ chunk_faces4[ f ] ];
-
-							v1 = value;
-							v2 = value;
-							v3 = value;
-							v4 = value;
-
-							customAttribute.array[ offset_custom ] 	   = v1.x;
-							customAttribute.array[ offset_custom + 1 ] = v1.y;
-
-							customAttribute.array[ offset_custom + 2 ] = v2.x;
-							customAttribute.array[ offset_custom + 3 ] = v2.y;
-
-							customAttribute.array[ offset_custom + 4 ] = v3.x;
-							customAttribute.array[ offset_custom + 5 ] = v3.y;
-
-							customAttribute.array[ offset_custom + 6 ] = v4.x;
-							customAttribute.array[ offset_custom + 7 ] = v4.y;
-
-							offset_custom += 8;
-
-						}
-
 					}
 
 				} else if ( customAttribute.size === 3 ) {
@@ -2837,35 +2403,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 						}
 
-						for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-							face = obj_faces[ chunk_faces4[ f ] ];
-
-							v1 = customAttribute.value[ face.a ];
-							v2 = customAttribute.value[ face.b ];
-							v3 = customAttribute.value[ face.c ];
-							v4 = customAttribute.value[ face.d ];
-
-							customAttribute.array[ offset_custom  ] 	= v1[ pp[ 0 ] ];
-							customAttribute.array[ offset_custom + 1  ] = v1[ pp[ 1 ] ];
-							customAttribute.array[ offset_custom + 2  ] = v1[ pp[ 2 ] ];
-
-							customAttribute.array[ offset_custom + 3  ] = v2[ pp[ 0 ] ];
-							customAttribute.array[ offset_custom + 4  ] = v2[ pp[ 1 ] ];
-							customAttribute.array[ offset_custom + 5  ] = v2[ pp[ 2 ] ];
-
-							customAttribute.array[ offset_custom + 6  ] = v3[ pp[ 0 ] ];
-							customAttribute.array[ offset_custom + 7  ] = v3[ pp[ 1 ] ];
-							customAttribute.array[ offset_custom + 8  ] = v3[ pp[ 2 ] ];
-
-							customAttribute.array[ offset_custom + 9  ] = v4[ pp[ 0 ] ];
-							customAttribute.array[ offset_custom + 10 ] = v4[ pp[ 1 ] ];
-							customAttribute.array[ offset_custom + 11 ] = v4[ pp[ 2 ] ];
-
-							offset_custom += 12;
-
-						}
-
 					} else if ( customAttribute.boundTo === "faces" ) {
 
 						for ( f = 0, fl = chunk_faces3.length; f < fl; f ++ ) {
@@ -2892,35 +2429,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 						}
 
-						for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-							value = customAttribute.value[ chunk_faces4[ f ] ];
-
-							v1 = value;
-							v2 = value;
-							v3 = value;
-							v4 = value;
-
-							customAttribute.array[ offset_custom  ] 	= v1[ pp[ 0 ] ];
-							customAttribute.array[ offset_custom + 1  ] = v1[ pp[ 1 ] ];
-							customAttribute.array[ offset_custom + 2  ] = v1[ pp[ 2 ] ];
-
-							customAttribute.array[ offset_custom + 3  ] = v2[ pp[ 0 ] ];
-							customAttribute.array[ offset_custom + 4  ] = v2[ pp[ 1 ] ];
-							customAttribute.array[ offset_custom + 5  ] = v2[ pp[ 2 ] ];
-
-							customAttribute.array[ offset_custom + 6  ] = v3[ pp[ 0 ] ];
-							customAttribute.array[ offset_custom + 7  ] = v3[ pp[ 1 ] ];
-							customAttribute.array[ offset_custom + 8  ] = v3[ pp[ 2 ] ];
-
-							customAttribute.array[ offset_custom + 9  ] = v4[ pp[ 0 ] ];
-							customAttribute.array[ offset_custom + 10 ] = v4[ pp[ 1 ] ];
-							customAttribute.array[ offset_custom + 11 ] = v4[ pp[ 2 ] ];
-
-							offset_custom += 12;
-
-						}
-
 					} else if ( customAttribute.boundTo === "faceVertices" ) {
 
 						for ( f = 0, fl = chunk_faces3.length; f < fl; f ++ ) {
@@ -2947,35 +2455,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 						}
 
-						for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-							value = customAttribute.value[ chunk_faces4[ f ] ];
-
-							v1 = value[ 0 ];
-							v2 = value[ 1 ];
-							v3 = value[ 2 ];
-							v4 = value[ 3 ];
-
-							customAttribute.array[ offset_custom  ] 	= v1[ pp[ 0 ] ];
-							customAttribute.array[ offset_custom + 1  ] = v1[ pp[ 1 ] ];
-							customAttribute.array[ offset_custom + 2  ] = v1[ pp[ 2 ] ];
-
-							customAttribute.array[ offset_custom + 3  ] = v2[ pp[ 0 ] ];
-							customAttribute.array[ offset_custom + 4  ] = v2[ pp[ 1 ] ];
-							customAttribute.array[ offset_custom + 5  ] = v2[ pp[ 2 ] ];
-
-							customAttribute.array[ offset_custom + 6  ] = v3[ pp[ 0 ] ];
-							customAttribute.array[ offset_custom + 7  ] = v3[ pp[ 1 ] ];
-							customAttribute.array[ offset_custom + 8  ] = v3[ pp[ 2 ] ];
-
-							customAttribute.array[ offset_custom + 9  ] = v4[ pp[ 0 ] ];
-							customAttribute.array[ offset_custom + 10 ] = v4[ pp[ 1 ] ];
-							customAttribute.array[ offset_custom + 11 ] = v4[ pp[ 2 ] ];
-
-							offset_custom += 12;
-
-						}
-
 					}
 
 				} else if ( customAttribute.size === 4 ) {
@@ -3009,39 +2488,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 						}
 
-						for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-							face = obj_faces[ chunk_faces4[ f ] ];
-
-							v1 = customAttribute.value[ face.a ];
-							v2 = customAttribute.value[ face.b ];
-							v3 = customAttribute.value[ face.c ];
-							v4 = customAttribute.value[ face.d ];
-
-							customAttribute.array[ offset_custom  ] 	= v1.x;
-							customAttribute.array[ offset_custom + 1  ] = v1.y;
-							customAttribute.array[ offset_custom + 2  ] = v1.z;
-							customAttribute.array[ offset_custom + 3  ] = v1.w;
-
-							customAttribute.array[ offset_custom + 4  ] = v2.x;
-							customAttribute.array[ offset_custom + 5  ] = v2.y;
-							customAttribute.array[ offset_custom + 6  ] = v2.z;
-							customAttribute.array[ offset_custom + 7  ] = v2.w;
-
-							customAttribute.array[ offset_custom + 8  ] = v3.x;
-							customAttribute.array[ offset_custom + 9  ] = v3.y;
-							customAttribute.array[ offset_custom + 10 ] = v3.z;
-							customAttribute.array[ offset_custom + 11 ] = v3.w;
-
-							customAttribute.array[ offset_custom + 12 ] = v4.x;
-							customAttribute.array[ offset_custom + 13 ] = v4.y;
-							customAttribute.array[ offset_custom + 14 ] = v4.z;
-							customAttribute.array[ offset_custom + 15 ] = v4.w;
-
-							offset_custom += 16;
-
-						}
-
 					} else if ( customAttribute.boundTo === "faces" ) {
 
 						for ( f = 0, fl = chunk_faces3.length; f < fl; f ++ ) {
@@ -3071,39 +2517,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 						}
 
-						for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-							value = customAttribute.value[ chunk_faces4[ f ] ];
-
-							v1 = value;
-							v2 = value;
-							v3 = value;
-							v4 = value;
-
-							customAttribute.array[ offset_custom  ] 	= v1.x;
-							customAttribute.array[ offset_custom + 1  ] = v1.y;
-							customAttribute.array[ offset_custom + 2  ] = v1.z;
-							customAttribute.array[ offset_custom + 3  ] = v1.w;
-
-							customAttribute.array[ offset_custom + 4  ] = v2.x;
-							customAttribute.array[ offset_custom + 5  ] = v2.y;
-							customAttribute.array[ offset_custom + 6  ] = v2.z;
-							customAttribute.array[ offset_custom + 7  ] = v2.w;
-
-							customAttribute.array[ offset_custom + 8  ] = v3.x;
-							customAttribute.array[ offset_custom + 9  ] = v3.y;
-							customAttribute.array[ offset_custom + 10 ] = v3.z;
-							customAttribute.array[ offset_custom + 11 ] = v3.w;
-
-							customAttribute.array[ offset_custom + 12 ] = v4.x;
-							customAttribute.array[ offset_custom + 13 ] = v4.y;
-							customAttribute.array[ offset_custom + 14 ] = v4.z;
-							customAttribute.array[ offset_custom + 15 ] = v4.w;
-
-							offset_custom += 16;
-
-						}
-
 					} else if ( customAttribute.boundTo === "faceVertices" ) {
 
 						for ( f = 0, fl = chunk_faces3.length; f < fl; f ++ ) {
@@ -3133,39 +2546,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 						}
 
-						for ( f = 0, fl = chunk_faces4.length; f < fl; f ++ ) {
-
-							value = customAttribute.value[ chunk_faces4[ f ] ];
-
-							v1 = value[ 0 ];
-							v2 = value[ 1 ];
-							v3 = value[ 2 ];
-							v4 = value[ 3 ];
-
-							customAttribute.array[ offset_custom  ] 	= v1.x;
-							customAttribute.array[ offset_custom + 1  ] = v1.y;
-							customAttribute.array[ offset_custom + 2  ] = v1.z;
-							customAttribute.array[ offset_custom + 3  ] = v1.w;
-
-							customAttribute.array[ offset_custom + 4  ] = v2.x;
-							customAttribute.array[ offset_custom + 5  ] = v2.y;
-							customAttribute.array[ offset_custom + 6  ] = v2.z;
-							customAttribute.array[ offset_custom + 7  ] = v2.w;
-
-							customAttribute.array[ offset_custom + 8  ] = v3.x;
-							customAttribute.array[ offset_custom + 9  ] = v3.y;
-							customAttribute.array[ offset_custom + 10 ] = v3.z;
-							customAttribute.array[ offset_custom + 11 ] = v3.w;
-
-							customAttribute.array[ offset_custom + 12 ] = v4.x;
-							customAttribute.array[ offset_custom + 13 ] = v4.y;
-							customAttribute.array[ offset_custom + 14 ] = v4.z;
-							customAttribute.array[ offset_custom + 15 ] = v4.w;
-
-							offset_custom += 16;
-
-						}
-
 					}
 
 				}
@@ -4367,11 +3747,11 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 			if ( geometry.geometryGroups[ groupHash ] === undefined ) {
 
-				geometry.geometryGroups[ groupHash ] = { 'faces3': [], 'faces4': [], 'materialIndex': materialIndex, 'vertices': 0, 'numMorphTargets': numMorphTargets, 'numMorphNormals': numMorphNormals };
+				geometry.geometryGroups[ groupHash ] = { 'faces3': [], 'materialIndex': materialIndex, 'vertices': 0, 'numMorphTargets': numMorphTargets, 'numMorphNormals': numMorphNormals };
 
 			}
 
-			vertices = face instanceof THREE.Face3 ? 3 : 4;
+			vertices = 3;
 
 			if ( geometry.geometryGroups[ groupHash ].vertices + vertices > 65535 ) {
 
@@ -4380,22 +3760,13 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 				if ( geometry.geometryGroups[ groupHash ] === undefined ) {
 
-					geometry.geometryGroups[ groupHash ] = { 'faces3': [], 'faces4': [], 'materialIndex': materialIndex, 'vertices': 0, 'numMorphTargets': numMorphTargets, 'numMorphNormals': numMorphNormals };
+					geometry.geometryGroups[ groupHash ] = { 'faces3': [], 'materialIndex': materialIndex, 'vertices': 0, 'numMorphTargets': numMorphTargets, 'numMorphNormals': numMorphNormals };
 
 				}
 
 			}
 
-			if ( face instanceof THREE.Face3 ) {
-
-				geometry.geometryGroups[ groupHash ].faces3.push( f );
-
-			} else {
-
-				geometry.geometryGroups[ groupHash ].faces4.push( f );
-
-			}
-
+			geometry.geometryGroups[ groupHash ].faces3.push( f );
 			geometry.geometryGroups[ groupHash ].vertices += vertices;
 
 		}