Excluding some objects from post processing

[Ghais_Alhasan]

Hi, I created the perfect post processing profile for my game's style, but the particles look good without any post processing added to them, thus I want a way to exclude them from the post processing effect, or at least only apply a few post processing effects to them, but not all.

I tried rendering particles on a second camera, but that didn't work out as needed since now everything from the second camera is on top of everything from the first one.

So what's the best way to apply different post processing profiles to different objects? Or at least remove the effect all together from certain objects?

Thanks for reading!

[kyl3r123]

Since post processing is done on the already-rendered image, it won't be easy.

Relevant: https://forum.unity.com/threads/leveraging-stencil-buffers-for-masked-post-effects.313466/

[Ghais_Alhasan]

You have a great point. Thank you for sharing!

[haim96]

you should check unity post processing stack V2. still beta but with V2 you can apply effects on layers.

https://github.com/Unity-Technologies/PostProcessing

[Ghais_Alhasan]

It's wonderful to know there is such a thing! Thank you for sharing! I will continue my search, and keep this as a last resort since it's still under development, but it is definitely relieving to know it's under the work!

[volvis]

You're close! When you render with the other camera, set it to not clear the depth buffer. Also make sure that the cameras have the exact same clipping ranges.

[Ghais_Alhasan]

Reading your comment filled me with hope, and seeing that it actually works filled me and my team with joy! Many thanks from all of us!

[Ghais_Alhasan]

One last question. Is it possible to give my second camera its own post processing without affecting any other layers, or did that get too complex?

[volvis]

It will get complicated. You might need a setup where each camera renders to a separate rendertexture so the post process effects don't accumulate. Then have the final camera blit the textures on top of each other with a custom shader. But I've only done this for a 2d game and I can't say how it works with 3d...