f2er
diff --git a/‎build/three.js
Lines changed: 23 additions & 0 deletions b/‎build/three.js
Lines changed: 23 additions & 0 deletions
@@ -23003,6 +23003,29 @@ THREE.GeometryUtils = {
 
 	},
 
+	removeMaterials: function ( geometry, materialIndexArray ) {
+
+		var materialIndexMap = {};
+
+		for ( var i = 0, il = materialIndexArray.length; i < il; i ++ ) {
+
+			materialIndexMap[ materialIndexArray[i] ] = true;
+
+		}
+
+		var face, newFaces = [];
+
+		for ( var i = 0, il = geometry.faces.length; i < il; i ++ ) {
+
+			face = geometry.faces[ i ];
+			if ( ! ( face.materialIndex in materialIndexMap ) ) newFaces.push( face );
+
+		}
+
+		geometry.faces = newFaces;
+
+	},
+
 	// Get random point in triangle (via barycentric coordinates)
 	// 	(uniform distribution)
 	// 	http://www.cgafaq.info/wiki/Random_Point_In_Triangle