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diff --git a/docs/postprocess.html b/docs/postprocess.html new file mode 100644 index 00000000000..2a379694298 --- /dev/null +++ b/docs/postprocess.html @@ -0,0 +1,56 @@ +<HTML> + +<TITLE>Gallium Post-processing</TITLE> + +<link rel="stylesheet" type="text/css" href="mesa.css"></head> + +<BODY> + +<H1>Gallium Post-processing</H1> + +<p> +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. +</p> + +<p> +The filters can be toggled per-app via driconf, or per-session via the +corresponding environment variables. +</p> + +<p> +Multiple filters can be used together. +</p> + + +<H2>PP environment variables</H2> + +<ul> +<li>PP_DEBUG - If defined debug information will be printed to stderr. +</ul> + +<h2>Current filters</h2> + +<ul> +<li>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. +<li>pp_jimenezmlaa, pp_jimenezmlaa_color - +<a href="http://www.iryokufx.com/mlaa/" target=_blank>Jimenez's MLAA</a> +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. +<li>pp_celshade - set to 1 to enable cell shading (a more complex color filter). +</ul> + + +<br> +<br> + + +</BODY> +</HTML> |