Notice: Mesa - R600 - NIR - TGSI - translation from TGSI failed

[blogdron]

This is just a note for those who will be affected by the problem like mine. This is not Corange problem.
But it's better to know about it.

The problem is described here:

• https://gitlab.freedesktop.org/mesa/mesa/-/issues/7780

  I will only briefly summarize the main. If you come across artifacts and graphics options like in graphics.cfg lighting = 1 and while in the terminal you see the following lines

  EE ../src/gallium/drivers/r600/r600_state_common.c:961 r600_shader_select - Failed to build shader variant (type=1) -1
  EE ../src/gallium/drivers/r600/r600_shader.c:193 r600_pipe_shader_create - translation from TGSI failed !

  it means the shader is working now assets_core/shaders/deferred/compose.fs

4 fix options

• 1 Fix shader

  #version 120
  -#define MAX_LIGHTS 32
  +#define MAX_LIGHTS 8

  or

  -#version 120
  +#version 130
  #define MAX_LIGHTS 32

• 2 Use NIR backend

  $export R600_DEBUG=nir
  $run_corange_app

• 3 Wait update MESA with NIR by default

• 4 Set in graphics.cfg lighting = 0 for use assets_core/shaders/deferred/compose_low.fs Notice: shadows not working with lighting = 0 and again wait update mesa

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I hope this will be useful to know and someone will be protected from tedious debugging like me :smiley: