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.
This reduces the number of vertex shaders and thus pipelines by quite a
bit more in a few games, like Tekken and GoW, continuing the fight
against shader compile stutter.
The perf impact should be minimal if not positive due to less pipeline
changes.
GLES fixes
Make the vertex input declarations match (always declare fog input). Fixes D3D11 validation
Tess fix
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...
