vertexColors should default to 'THREE.NoColors' not 'false' - Fixes #2180

src/materials/LineBasicMaterial.js

@@ -30,7 +30,7 @@ THREE.LineBasicMaterial = function ( parameters ) {
 	this.linecap = 'round';
 	this.linejoin = 'round';
 
-	this.vertexColors = false;
+	this.vertexColors = THREE.NoColors;
 
 	this.fog = true;
 

src/materials/PointCloudMaterial.js

@@ -30,7 +30,7 @@ THREE.PointCloudMaterial = function ( parameters ) {
 	this.size = 1;
 	this.sizeAttenuation = true;
 
-	this.vertexColors = false;
+	this.vertexColors = THREE.NoColors;
 
 	this.fog = true;