| Andreas Boll | ecd5c7c | 2012-06-12 09:05:03 +0200 | [diff] [blame] | 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| 2 | <html lang="en"> |
| 3 | <head> |
| 4 | <meta http-equiv="content-type" content="text/html; charset=utf-8"> |
| 5 | <title>Gallium Post-processing</title> |
| 6 | <link rel="stylesheet" type="text/css" href="mesa.css"> |
| 7 | </head> |
| 8 | <body> |
| Lauri Kasanen | 50da22c | 2011-08-25 23:26:17 +0300 | [diff] [blame] | 9 | |
| Andreas Boll | b5da52a | 2012-09-18 18:57:02 +0200 | [diff] [blame] | 10 | <div class="header"> |
| 11 | <h1>The Mesa 3D Graphics Library</h1> |
| 12 | </div> |
| 13 | |
| 14 | <iframe src="contents.html"></iframe> |
| 15 | <div class="content"> |
| 16 | |
| Andreas Boll | ecd5c7c | 2012-06-12 09:05:03 +0200 | [diff] [blame] | 17 | <h1>Gallium Post-processing</h1> |
| Lauri Kasanen | 50da22c | 2011-08-25 23:26:17 +0300 | [diff] [blame] | 18 | |
| 19 | <p> |
| 20 | The Gallium drivers support user-defined image post-processing. |
| 21 | At the end of drawing a frame a post-processing filter can be applied to |
| 22 | the rendered image. |
| 23 | Example filters include morphological antialiasing and cell shading. |
| 24 | </p> |
| 25 | |
| 26 | <p> |
| 27 | The filters can be toggled per-app via driconf, or per-session via the |
| 28 | corresponding environment variables. |
| 29 | </p> |
| 30 | |
| 31 | <p> |
| 32 | Multiple filters can be used together. |
| 33 | </p> |
| 34 | |
| 35 | |
| Andreas Boll | 210a27d | 2012-06-12 09:05:36 +0200 | [diff] [blame] | 36 | <h2>PP environment variables</h2> |
| Lauri Kasanen | 50da22c | 2011-08-25 23:26:17 +0300 | [diff] [blame] | 37 | |
| 38 | <ul> |
| 39 | <li>PP_DEBUG - If defined debug information will be printed to stderr. |
| 40 | </ul> |
| 41 | |
| 42 | <h2>Current filters</h2> |
| 43 | |
| 44 | <ul> |
| 45 | <li>pp_nored, pp_nogreen, pp_noblue - set to 1 to remove the corresponding color channel. |
| 46 | These are basic filters for easy testing of the PP queue. |
| 47 | <li>pp_jimenezmlaa, pp_jimenezmlaa_color - |
| 48 | <a href="http://www.iryokufx.com/mlaa/" target=_blank>Jimenez's MLAA</a> |
| 49 | is a morphological antialiasing filter. |
| 50 | The two versions use depth and color data, respectively. |
| 51 | Which works better depends on the app - depth will not blur text, but it will |
| 52 | miss transparent textures for example. |
| 53 | Set to a number from 2 to 32, roughly corresponding to quality. |
| 54 | Numbers higher than 8 see minimizing gains. |
| 55 | <li>pp_celshade - set to 1 to enable cell shading (a more complex color filter). |
| 56 | </ul> |
| 57 | |
| 58 | |
| 59 | <br> |
| 60 | <br> |
| 61 | |
| Andreas Boll | b5da52a | 2012-09-18 18:57:02 +0200 | [diff] [blame] | 62 | </div> |
| Andreas Boll | ecd5c7c | 2012-06-12 09:05:03 +0200 | [diff] [blame] | 63 | </body> |
| 64 | </html> |