Can post processing be ported to Udon?

I can’t seem to find any functions that work for porting, VRCGraph’s functions are too crippled and most of Unity’s functions for graphics don’t work.

I have written something that works on Unity with PPSv2, but it doesn’t work in VRchat because I can’t set the shader or material.

There are many functions that cannot be done with existing Post Processing, so they have to be written.

Or do you have to use expensive methods such as translucency and GrabPass with more calculations using facets?

I can’t get the depth and other means of calculation effectively, is there any other way?