Gallium Post-processing
The Gallium drivers support user-defined image post-processing.
At the end of drawing a frame a post-processing filter can be applied to
the rendered image.
Example filters include morphological antialiasing and cell shading.
The filters can be toggled per-app via driconf, or per-session via the
corresponding environment variables.
Multiple filters can be used together.
PP environment variables
- PP_DEBUG - If defined debug information will be printed to stderr.
Current filters
- pp_nored, pp_nogreen, pp_noblue - set to 1 to remove the corresponding color channel.
These are basic filters for easy testing of the PP queue.
- pp_jimenezmlaa, pp_jimenezmlaa_color -
Jimenez's MLAA
is a morphological antialiasing filter.
The two versions use depth and color data, respectively.
Which works better depends on the app - depth will not blur text, but it will
miss transparent textures for example.
Set to a number from 2 to 32, roughly corresponding to quality.
Numbers higher than 8 see minimizing gains.
- pp_celshade - set to 1 to enable cell shading (a more complex color filter).
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1.1
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@Initial revision
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1.1.1.1
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@initial import of MesaLib-10.3.5
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1.1.1.2
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@from maya:
Import mesa 18.3.4.
Mesa 18.3.4 implements the OpenGL 4.5 API.
Some drivers don't support all the features required in OpenGL 4.5.
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@d48 1
a48 1
Gallium Post-processing
The Gallium drivers support user-defined image post-processing.
At the end of drawing a frame a post-processing filter can be applied to
the rendered image.
Example filters include morphological antialiasing and cell shading.
The filters can be toggled per-app via driconf, or per-session via the
corresponding environment variables.
Multiple filters can be used together.
PP environment variables
- PP_DEBUG - If defined debug information will be printed to stderr.
Current filters
- pp_nored, pp_nogreen, pp_noblue - set to 1 to remove the corresponding color channel.
These are basic filters for easy testing of the PP queue.
- pp_jimenezmlaa, pp_jimenezmlaa_color -
Jimenez's MLAA
is a morphological antialiasing filter.
The two versions use depth and color data, respectively.
Which works better depends on the app - depth will not blur text, but it will
miss transparent textures for example.
Set to a number from 2 to 32, roughly corresponding to quality.
Numbers higher than 8 see minimizing gains.
- pp_celshade - set to 1 to enable cell shading (a more complex color filter).
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