May I ask how to obtain points, normal vectors, camera view matrices, and projection matrices from the mat file? I would like to write a Feng's illumination mat file myself

[Haidiye00]

This is a shader I wrote in Opengl, which uses the camera's view matrix, projection matrix, as well as the submitted point coordinates and normal vectors

So how do I obtain these variables in the mat file? Thank you for your guidance

[romainguy]

Everything is documented here: https://google.github.io/filament/Materials.html

And please ask the questions inside the message, not in the titles please.