How to recognise shaders made for 'forward' and 'deferred' lighting?

kurt_hectic · Mar 2014

Hello,

Currently I'm trying to clean up a Unity scene. I'm sure some of the shaders don't work well with existing deferred lighting. I'd like to replace them but berote that I have open all shaders in a 'notepad' and somehow figure out what shaders are prepered for forward and what for deferred lighting.

Is there any 'key' word in every single shader which I could look for?
Or maybe formation, construction, characteristic beginning or ending?

I hope so :poly136:

Thanks
Tom

monster · Mar 2014

All the default shaders support deferred and forward rendering. If a custom shader says "pragma surface" then it will support both as well. If it says "pragma vert" or "pragma frag" then it might or might not.

But even if you have deferred rendering enabled, a shader that is only compatible with forward rendering will still render in a forward pass after the deferred pass.

Farfarer · Mar 2014

With surface shaders, anything with a lighting function suffixed with _Prepass will render using deferred rendering.

With vert/frag shaders there's any pass using #pragma multicompile _something_ but I'm not sure what it is.

How to recognise shaders made for 'forward' and 'deferred' lighting?

Replies