koobas.hobune.stream
How to make a conditional #pragma surface noforwardadd
Hi there,
I'd like to have this in my shader:
#if SHADER_API_MOBILE
#pragma surface surf Lambert noforwardadd
#else
#pragma surface surf Lambert
#endif
But this tries to compile both #pragma surface and ignores the second one instead of respecting the #if condition.
Anyone know how to add "noforwardadd" to a shader, but only when it's compiled for mobile platforms?
Thanks!
Allen
Not definitively answered, but the question has been asked before: http://answers.unity3d.com/questions/548313/shaderlab-preprocessor-ignoring-if-endif-when-prag.html
Thanks tanoshimi! And sorry for the duplicate! $$anonymous$$aybe there's something special about #pragma surface and noforwardadd that can allow for this type of condition, even without the use of #if preprocs? $$anonymous$$aybe just making sure there is only ever one light on mobile would get most of the benefits of noforwardadd?
Hmm... $$anonymous$$aybe it's possible to somehow duplicate the entire CGPROGRA$$anonymous$$, one for SHADER_API_$$anonymous$$OBILE and one otherwise. Then only compile one of them, along with their #pragma, based on something like SHADER_API_$$anonymous$$OBILE? I feel like this method might end up negating the benefit of the smaller shader generated by noforwardadd...
The best answer I've found at this point is the following. It's not perfect, since I believe this results in a larger shader, but it answers the question:
