Always do the vertex shader part of the fog computation. #16111
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In #16104, we drastically reduced the number of shader variants for games that use flexible lighting setups. I looked at a few games and it seems that a lot of games have the same shaders with fog on/off, while fog is super cheap to compute. So let's just always do it, reducing vertex shader variants further (though the amount of pipelines will probably remain the same, since we still specialize the fragment shader). Might also be worth adding a dynamic bool for the fragment shader, but if so, doing it separately.
| float fogColor[4]; // .w is unused | ||
| float fogColor[4]; |
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Isn't this still true?
-[Unknown]
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It is, it just wasn't in an intermediate stage of this PR :P I'll sneak in a revert of this line in some other thing later.
| @@ -83,14 +82,12 @@ void ComputeVertexShaderID(VShaderID *id_out, u32 vertType, bool useHWTransform, | |||
| _assert_(hasNormal); | |||
| } | |||
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| bool enableFog = gstate.isFogEnabled() && !isModeThrough && !gstate.isModeClear(); | |||
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Just a note: if we remove the flag from the frag shader too, we just have to make sure it isn't enabled in clearMode (should be easy, already has a bit.) Note that clear can be used in transform mode.
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Yup, so I noticed when I tried earlier today, and decided to not bother for now :)
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In #16104, we drastically reduced the number of shader variants for games that use flexible lighting setups.
I looked at a few games and it seems that a lot of games have the same shaders with fog on/off, while fog is super cheap to compute. So let's just always do it, reducing vertex shader variants further (though the amount of pipelines will probably remain the same, since we still specialize the fragment shader).
Might also be worth adding a dynamic bool for the fragment shader, but if so, doing it in a separate PR (or possibly set the fog coefficients so no fog is applied...)