Merge THREE.BufferGeometry morph attributes.

merge-morph-attributes.patch

diff --git a/examples/js/utils/BufferGeometryUtils.js b/examples/js/utils/BufferGeometryUtils.js
index f1ce126f6..4c1edcea3 100644
--- a/examples/js/utils/BufferGeometryUtils.js
+++ b/examples/js/utils/BufferGeometryUtils.js
@@ -399,6 +399,7 @@ THREE.BufferGeometryUtils = {
 		// attributes and new attribute arrays
 		var attributeNames = Object.keys( this.attributes );
 		var attrArrays = {};
+		var morphAttrArrays = {};
 		var newIndices = [];
 		var getters = [ 'getX', 'getY', 'getZ', 'getW' ];
 
@@ -447,6 +448,14 @@ THREE.BufferGeometryUtils = {
 
 						newarray.push( attribute[ getters[ k ] ]( index ) );
 
+						for ( var m = 0; m < (this.morphAttributes[ name ]||[]).length; m ++ ) {
+
+							morphAttrArrays[ name ] = morphAttrArrays[ name ] || [];
+							morphAttrArrays[ name ][ m ] = morphAttrArrays[ name ][ m ] || [];
+							morphAttrArrays[ name ][ m ].push( this.morphAttributes[ name ][ m ][ getters[ k ] ]( index ) );
+
+						}
+
 					}
 
 				}
@@ -481,6 +490,14 @@ THREE.BufferGeometryUtils = {
 
 			this.addAttribute( name, attribute );
 
+			for ( var j = 0; j < morphAttrArrays[ name ].length; j ++ ) {
+
+				var morphAttribute = this.morphAttributes[ name ][ j ].clone();
+				morphAttribute.setArray( new morphAttribute.array.constructor( morphAttrArrays[ name ][ j ] ) );
+				this.morphAttributes[ name ][ j ] = morphAttribute;
+
+			}
+
 			debugger;
 
 		}