DIRTY_MIPBIAS wasn't part of DIRTY_BASE_UNIFORMS, so on Vulkan and D3D11 a
new bias (u_mipBias for 3D textures, u_texLodBias since the last commit)
only reached the shader along with some other base uniform. The fast prim
loop also changed texlevel in auto mode without dirtying it. Fixes the F1
Grand Prix railings on Vulkan, where the texture was drawn from the
smallest mip level.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
MoltenVK doesn't support a sampler mipLodBias (the portability subset's
samplerMipLodBias is false), so the PSP's LOD bias did nothing on Mac and
iOS, and biased textures came out a mip level blurrier than on OpenGL and
the PSP: MLB's signs and crowd, Burnout Legends, MediEvil, Ridge Racer 2.
Query the portability subset, and where the bias is missing, pass the auto
mode bias to texture() from a uniform instead.
VK_ENABLE_BETA_EXTENSIONS, which declares the portability subset, is now
defined for App Store iOS builds too.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The GLES sampler uniforms and texture slots for the control points and
weights, the Vulkan storage buffer bindings, and the u_spline_counts
uniform, which becomes padding (the C++ side already was).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
After the previous commit, the optimization is no longer needed, and
unnecessarily bloats the uniform buffer.
This reverts commit 62bcb1785e809649ba88b49e24c5217f457fa040.
This uniform is used in two cases:
* Non-buffered rendering in Vulkan, software transform
* Non-buffered rendering in D3D11 level 9 on Windows Phone, software transform
- which I don't think anyone builds for anymore
Nice to not have it in the main uniform buffer, but mainly a
demonstrator/test of moving stuff to the new frame-global buffer, and
setting up the infrastructure.
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.
This drastically reduces the shader compile stutter that happens when a lot of new
light setups are created, like on the first punch in Tekken 6.
There's more stuff that might benefit from being made dynamic like this.
These branches are very cheap on modern GPUs since they're branching on
a uniform variable, so no divergence.
Only tested on Vulkan. I think we'll need to keep the old path too for
gpus like Mali-450...
