public static void FindCollision(GImpactBvh boxset1, Matrix trans1, GImpactBvh boxset2, Matrix trans2, PairSet collisionPairs)
		{
			btGImpactBvh_find_collision(boxset1._native, ref trans1, boxset2._native, ref trans2, collisionPairs._native);
		}
 public static void FindCollision(GImpactBvh boxset1, Matrix trans1, GImpactBvh boxset2,
                                  Matrix trans2, PairSet collisionPairs)
 {
     btGImpactBvh_find_collision(boxset1._native, ref trans1, boxset2._native,
                                 ref trans2, collisionPairs._native);
 }