Need help with custom sunshaft system.

I am needing to prevent things from being hit by sunshafts.

I am using a layered 4 camera system.

I need the shafts to only hit objects on one camera. Currently, the sunshafts that come with unity work by using OnRenderImage which combines all of the camera's output into a single image and applies the FX to it.

That does not work for my purposes so, I was looking for a way to intercept the render buffer for an individual camera, convert it to a render texture, apply the FX to it and then replace that camera's output with the updated version without applying the FX to all combined cameras.

I realize there may be some performance cost to that however, I would like to try it and find out, if it is possible to do.

What I want to know is am I chasing a ghost? Is it possible to do this? I have been looking for a while and figured I would ask, maybe save myself some time.

Thanks,
Johnny
DeepLogicGames

 

Possible through the CommandBuffer?

 

Found a possible solution:
https://forum.unity.com/threads/mul...fects-and-the-deferred-rendering-path.323174/

However, performance impact may be scary esp on high resolution.. so, guess i will give it a try and see what happens. I just cant give up on sunshafts in my space sim.

The problem is they were hitting distance stars in the background that are anywhere from 6 to 100 million meters away, they are emmisive so the sun of the solar system the player is currently in produces a shaft and it was hitting them as the ship passed by and other distance suns were clipping it.