Use TempVars for triangle processing instead of explicit allocations, speeds up processing by around 30%

jme3-core/src/main/java/com/jme3/util/TangentBinormalGenerator.java

@@ -556,14 +556,16 @@ public class TangentBinormalGenerator {
     
     public static TriangleData processTriangle(int[] index,
             Vector3f[] v, Vector2f[] t) {
-        Vector3f edge1 = new Vector3f();
-        Vector3f edge2 = new Vector3f();
-        Vector2f edge1uv = new Vector2f();
-        Vector2f edge2uv = new Vector2f();
+    	TempVars tmp = TempVars.get();
+    	try {
+	        Vector3f edge1 = tmp.vect1;
+	        Vector3f edge2 = tmp.vect2;
+	        Vector2f edge1uv = tmp.vect2d;
+	        Vector2f edge2uv = tmp.vect2d2;
 	        
-        Vector3f tangent = new Vector3f();
-        Vector3f binormal = new Vector3f();
-        Vector3f normal = new Vector3f();
+	        Vector3f tangent = tmp.vect3;
+	        Vector3f binormal = tmp.vect4;
+	        Vector3f normal = tmp.vect5;
 	        
 	        t[1].subtract(t[0], edge1uv);
 	        t[2].subtract(t[0], edge2uv);
@@ -617,6 +619,9 @@ public class TangentBinormalGenerator {
 	                tangent,
 	                binormal,
 	                normal);
+    	} finally {
+    		tmp.release();
+    	}
     }
     
     public static void setToleranceAngle(float angle) {