WebGLRenderer: Now also creating normalArray, colorArray by default.

This should "fix" all the problems of textures not rendering when the first instance of the geometry rendered didn't use.
Yet another premature optimisation that created a lot of confusion :(

src/renderers/WebGLRenderer.js

@@ -845,19 +845,16 @@ THREE.WebGLRenderer = function ( parameters ) {
 			ntris     = faces3.length * 1,
 			nlines    = faces3.length * 3,
 
-			material = getBufferMaterial( object, geometryGroup ),
-
-			uvType = true,
-			normalType = bufferGuessNormalType( material ),
-			vertexColorType = bufferGuessVertexColorType( material );
-
-		// console.log( "uvType", uvType, "normalType", normalType, "vertexColorType", vertexColorType, object, geometryGroup, material );
+			material = getBufferMaterial( object, geometryGroup );
 
 		geometryGroup.__vertexArray = new Float32Array( nvertices * 3 );
+		geometryGroup.__normalArray = new Float32Array( nvertices * 3 );
+		geometryGroup.__colorArray = new Float32Array( nvertices * 3 );
+		geometryGroup.__uvArray = new Float32Array( nvertices * 2 );
 
-		if ( normalType ) {
+		if ( geometry.faceVertexUvs.length > 1 ) {
 
-			geometryGroup.__normalArray = new Float32Array( nvertices * 3 );
+			geometryGroup.__uv2Array = new Float32Array( nvertices * 2 );
 
 		}
 
@@ -867,28 +864,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 		}
 
-		if ( vertexColorType ) {
-
-			geometryGroup.__colorArray = new Float32Array( nvertices * 3 );
-
-		}
-
-		if ( uvType ) {
-
-			if ( geometry.faceVertexUvs.length > 0 ) {
-
-				geometryGroup.__uvArray = new Float32Array( nvertices * 2 );
-
-			}
-
-			if ( geometry.faceVertexUvs.length > 1 ) {
-
-				geometryGroup.__uv2Array = new Float32Array( nvertices * 2 );
-
-			}
-
-		}
-
 		if ( object.geometry.skinWeights.length && object.geometry.skinIndices.length ) {
 
 			geometryGroup.__skinIndexArray = new Float32Array( nvertices * 4 );
@@ -1004,60 +979,6 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 	};
 
-	function bufferGuessNormalType ( material ) {
-
-		// only MeshBasicMaterial and MeshDepthMaterial don't need normals
-
-		if ( ( material instanceof THREE.MeshBasicMaterial && ! material.envMap ) || material instanceof THREE.MeshDepthMaterial ) {
-
-			return false;
-
-		}
-
-		if ( materialNeedsSmoothNormals( material ) ) {
-
-			return THREE.SmoothShading;
-
-		} else {
-
-			return THREE.FlatShading;
-
-		}
-
-	};
-
-	function bufferGuessVertexColorType( material ) {
-
-		if ( material.vertexColors ) {
-
-			return material.vertexColors;
-
-		}
-
-		return false;
-
-	};
-
-	function bufferGuessUVType( material ) {
-
-		// material must use some texture to require uvs
-
-		if ( material.map ||
-				 material.lightMap ||
-				 material.bumpMap ||
-				 material.normalMap ||
-				 material.specularMap ||
-				 material.alphaMap ||
-				 material instanceof THREE.ShaderMaterial ) {
-
-			return true;
-
-		}
-
-		return false;
-
-	};
-
 	//
 
 	function initDirectBuffers( geometry ) {
@@ -1579,11 +1500,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 		}
 
-		var normalType = bufferGuessNormalType( material ),
-		vertexColorType = bufferGuessVertexColorType( material ),
-		uvType = bufferGuessUVType( material ),
-
-		needsSmoothNormals = ( normalType === THREE.SmoothShading );
+		var needsSmoothNormals = materialNeedsSmoothNormals( material );
 
 		var f, fl, fi, face,
 		vertexNormals, faceNormal, normal,
@@ -1844,7 +1761,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 		}
 
-		if ( dirtyColors && vertexColorType ) {
+		if ( dirtyColors ) {
 
 			for ( f = 0, fl = chunk_faces3.length; f < fl; f ++ ) {
 
@@ -1853,7 +1770,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 				vertexColors = face.vertexColors;
 				faceColor = face.color;
 
-				if ( vertexColors.length === 3 && vertexColorType === THREE.VertexColors ) {
+				if ( vertexColors.length === 3 && material.vertexColors === THREE.VertexColors ) {
 
 					c1 = vertexColors[ 0 ];
 					c2 = vertexColors[ 1 ];
@@ -1928,7 +1845,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 		}
 
-		if ( dirtyNormals && normalType ) {
+		if ( dirtyNormals ) {
 
 			for ( f = 0, fl = chunk_faces3.length; f < fl; f ++ ) {
 
@@ -1972,7 +1889,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 		}
 
-		if ( dirtyUvs && obj_uvs && uvType ) {
+		if ( dirtyUvs && obj_uvs ) {
 
 			for ( f = 0, fl = chunk_faces3.length; f < fl; f ++ ) {
 
@@ -2004,7 +1921,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 		}
 
-		if ( dirtyUvs && obj_uvs2 && uvType ) {
+		if ( dirtyUvs && obj_uvs2 ) {
 
 			for ( f = 0, fl = chunk_faces3.length; f < fl; f ++ ) {