PointCloud.raycast clean up.

src/objects/PointCloud.js

@@ -83,21 +83,21 @@ THREE.PointCloud.prototype.raycast = ( function () {
 
 				if ( offsets.length === 0 ) {
 
-					var offset = {
+					offsets.push( {
 						start: 0,
 						count: indices.length,
 						index: 0
-					};
-
-					offsets = [ offset ];
+					} );
 
 				}
 
 				for ( var oi = 0, ol = offsets.length; oi < ol; ++ oi ) {
 
-					var start = offsets[ oi ].start;
-					var count = offsets[ oi ].count;
-					var index = offsets[ oi ].index;
+					var offset = offsets[ oi ];
+
+					var start = offset.start;
+					var count = offset.count;
+					var index = offset.index;
 
 					for ( var i = start, il = start + count; i < il; i ++ ) {
 
@@ -113,15 +113,9 @@ THREE.PointCloud.prototype.raycast = ( function () {
 
 			} else {
 
-				var pointCount = positions.length / 3;
-
-				for ( var i = 0; i < pointCount; i ++ ) {
+				for ( var i = 0, l = positions.length / 3; i < l; i ++ ) {
 
-					position.set(
-						positions[ 3 * i ],
-						positions[ 3 * i + 1 ],
-						positions[ 3 * i + 2 ]
-					);
+					position.fromArray( positions, i * 3 );
 
 					testPoint( position, i );
 
@@ -131,9 +125,9 @@ THREE.PointCloud.prototype.raycast = ( function () {
 
 		} else {
 
-			var vertices = this.geometry.vertices;
+			var vertices = geometry.vertices;
 
-			for ( var i = 0; i < vertices.length; i ++ ) {
+			for ( var i = 0, l = vertices.length; i < l; i ++ ) {
 
 				testPoint( vertices[ i ], i );