Hiya I get a heap of errors on build regarding the Avatar Surface shader
Shader error in 'OvrAvatar/AvatarSurfaceShader': Invalid const register num: 66. Max allowed is 31. at Assets/OvrAvatar/Content/Materials/AvatarMaterialStateShader.cginc(225) (on d3d11_9x)
Compiling Fragment program with DIRECTIONAL FOG_LINEAR PROJECTOR_ON NORMAL_MAP_OFF PARALLAX_ON ROUGHNESS_ON LAYERS_8
Could it be due to multiple Avatars in the scene triggering it (ie th eshader is only expecting X number of counts, but n number of avatars in the scene creates xn counts?
(Note - To get Avatars working, also need to set Windows build architecture to x86_64).
When the shaders are added to the player settings, these errors are produced when building.
The interesting part of the error is where it references d3d11_9x - so that means it's building for DX11 but with DX9.x features only. Which I presume is why it only permits 32 const registers, which is low.
Why or how is it compiling d3d11_9x? Can I disable this somehow either in code or the Unity editor settings?
The worst thing is that this messes up automated builds. If you invoke the build system through script it returns these errors even when the build technically succeeded, so your script cannot determine whether the build failed or not.
#pragma exclude_renderers gles3 metal d3d11_9x xbox360 xboxone ps3 ps4 psp2
#pragma target 3.0
to the shader files: AvatarSurfaceShader.shader AvatarSurfaceShaderPBS.shader AvatarSurfaceShaderSelfOccluding.shader.
If you search for "pragma target 2.0" I saw there were 2 instances of this. SM 2.0 has a limit of 32 const registers, which would seem to explain the errors.
@Oculus : I would advocate going through all the avatar shader code and ensuring the pragmas are correctly configured. My solution may not necessarily be the best solution, but at least it fixed the broken build we were experiencing.
Met the same problem, and solved it by adding the three shaders AvatarSurfaceShader, AvatarSurfaceShaderPBS, AvatarSurfaceShaderSelfOccluding to Edit>Project Settings>Player>OtherSettings>Optimization>PreloadedAssets.
If it's still not working, in Build Settings, change windows x86 to windows x86_64
#pragma exclude_renderers gles3 metal d3d11_9x xbox360 xboxone ps3 ps4 psp2
#pragma target 3.0
to the shader files: AvatarSurfaceShader.shader AvatarSurfaceShaderPBS.shader AvatarSurfaceShaderSelfOccluding.shader.
If you search for "pragma target 2.0" I saw there were 2 instances of this. SM 2.0 has a limit of 32 const registers, which would seem to explain the errors.
I will agree, this worked for me on Unity 2019.4.0f1, I inserted them next to other #pragma s in each file, then the error went away, allowing me to now build and run, with it successfully deploying on the Quest
