4d066836e3
This uses the previously added scripts to convert the documentation to reStructuredText, which is both easier to read offline, and can be used to generate modern HTML for online documentation. No modification to the generated results have been done. Acked-by: Eric Engestrom <eric@engestrom.ch> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4630>
34 lines
1.2 KiB
ReStructuredText
34 lines
1.2 KiB
ReStructuredText
Gallium Post-processing
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=======================
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The Gallium drivers support user-defined image post-processing. At the
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end of drawing a frame a post-processing filter can be applied to the
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rendered image. Example filters include morphological antialiasing and
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cell shading.
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The filters can be toggled per-app via driconf, or per-session via the
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corresponding environment variables.
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Multiple filters can be used together.
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PP environment variables
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------------------------
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- PP_DEBUG - If defined debug information will be printed to stderr.
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Current filters
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---------------
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- pp_nored, pp_nogreen, pp_noblue - set to 1 to remove the
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corresponding color channel. These are basic filters for easy testing
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of the PP queue.
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- pp_jimenezmlaa, pp_jimenezmlaa_color - `Jimenez's
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MLAA <https://www.iryokufx.com/mlaa/>`__ is a morphological
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antialiasing filter. The two versions use depth and color data,
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respectively. Which works better depends on the app - depth will not
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blur text, but it will miss transparent textures for example. Set to
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a number from 2 to 32, roughly corresponding to quality. Numbers
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higher than 8 see minimizing gains.
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- pp_celshade - set to 1 to enable cell shading (a more complex color
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filter).
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