What's the use case for this? If the entity stays in place you will probably get (different) perspective distortions when you rotate the camera - if I'm not mistaken. Maybe it would help to use a custom/ special view matrix in the vertex shader for that object, like an isometric/ orthographic one?
"Falls das Resultat nicht einfach nur dermassen gut aussieht, sollten Sie nochmal von vorn anfangen..." - Manual
