As I was looking for constant names for the projection matrix I found this thread in
Unity Answers:
"Unity uses Transforms for rendering and for physics interactions. To this end, it does not store transformation matrices explicitly. Translation, rotation and scale are actually stored as vectors and quaternions, and transformation matrices are generated as needed."
There is more details on the thread but , the writer implies that Unity handles transformation matrices very differently than other game engines. Perhaps thats why I cant seem to get a list of matrix constants, since unity don't rely on projection matrices, I'm thinking that there might be an architectural limitation to perception and unity. Am I right?