Stenzek f8a64ab1fc UberShaderPixel: Use an if trees instead of switch statements on GL ...

The switch statements in these functions appear to get transformed into
an if..else chain on NVIDIA's OpenGL/Vulkan drivers, resulting in lower
performance than the D3D counterparts. Transforming the switch into a
binary tree of ifs can increase performance by up to 20%.

2017-08-12 00:16:19 +10:00

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