public void internalProcessTriangleIndex(Vector3f[] triangle, int partId, int triangleIndex) {
   VectorUtil.setMin(aabbMin, triangle[0]);
   VectorUtil.setMax(aabbMax, triangle[0]);
   VectorUtil.setMin(aabbMin, triangle[1]);
   VectorUtil.setMax(aabbMax, triangle[1]);
   VectorUtil.setMin(aabbMin, triangle[2]);
   VectorUtil.setMax(aabbMax, triangle[2]);
 }