Shader optimizations (skipping AND operands etc.)

I still have less of a load between using the engine’s if and a custom node.
this is on a landscape material, but the difference is all encompassing despite the paint being identical and just the material being different.
Despite what the discussion points out. And I’m talking approx 15fps of a difference. So obviously the branches are getting properly excluded.

That said, no idea if this can translate to a PP material.

Another thing I’m not sure on…
Can you push a custom UV in a PP material to push the calculation load onto the gfx?
OR does the PP material always run on the gfx anyway making that not something you need to do?

Been a while since I played with pp effect…