ReinUsesLisp c9d886c84e gl_shader_decompiler: Implement gl_ViewportIndex and gl_Layer in vertex shaders
This commit implements gl_ViewportIndex and gl_Layer in vertex and
geometry shaders. In the case it's used in a vertex shader, it requires
ARB_shader_viewport_layer_array. This extension is available on AMD and
Nvidia devices (mesa and proprietary drivers), but not available on
Intel on any platform. At the moment of writing this description I don't
know if this is a hardware limitation or a driver limitation.

In the case that ARB_shader_viewport_layer_array is not available,
writes to these registers on a vertex shader are ignored, with the
appropriate logging.
2019-07-07 20:42:55 -03:00
..
2019-07-05 09:46:53 -04:00