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-<HTML>
-
-<TITLE>Off-screen Rendering</TITLE>
-
-<link rel="stylesheet" type="text/css" href="mesa.css"></head>
-
-<BODY>
-
-<H1>Off-screen Rendering</H1>
-
-
-<p>
-Mesa 1.2.4 introduced off-screen rendering, a facility for generating
-3-D imagery without having to open a window on your display. Mesa's
-simple off-screen rendering interface is completely operating system
-and window system independent so programs which use off-screen
-rendering should be very portable. This feature effectively
-enables you to use Mesa as an off-line, batch-oriented renderer.
-</p>
-<p>
-The "OSMesa" API provides 3 functions for making off-screen
-renderings: OSMesaCreateContext(), OSMesaMakeCurrent(), and
-OSMesaDestroyContext(). See the Mesa/include/GL/osmesa.h header for
-more information. See the demos/osdemo.c file for an example program.
-There is no facility for writing images to files. That's up to you.
-</p>
-<p>
-If you want to generate large images (larger than 1280x1024) you'll
-have to edit the src/config.h file to change MAX_WIDTH and MAX_HEIGHT
-then recompile Mesa. Image size should only be limited by available
-memory.
-</p>
-
-
-<H2>Deep color channels</H2>
-
-<p>
- For some applications 8-bit color channels don't have sufficient
- accuracy (film and IBR, for example). If you're in this situation
- you'll be happy to know that Mesa supports 16-bit and 32-bit color
- channels through the OSMesa interface. When using 16-bit channels,
- channels are GLushorts and RGBA pixels occupy 8 bytes. When using 32-bit
- channels, channels are GLfloats and RGBA pixels occupy 16 bytes.
-</p>
-<p>
- To build Mesa/OSMesa with 16-bit color channels:
-<pre>
- make realclean
- make linux-osmesa16
-</pre>
-
- For 32-bit channels:
-<pre>
- make realclean
- make linux-osmesa32
-</pre>
-
-<p>
-You'll wind up with a library named libOSMesa16.so or libOSMesa32.so.
-</p>
-
-<p>
-If you need to compile on a non-Linux platform, copy Mesa/configs/linux-osmesa16
-to a new config file and edit it as needed. Then, add the new config name to
-the top-level Makefile. Send a patch to the Mesa developers too, if you're
-inclined.
-</p>
-
-<p>
-BE WARNED: 16 and 32-bit channel support has not been exhaustively
-tested and there may be some bugs. However, a number of people have
-been using this feature successfully so it can't be too broken.
-</p>
-
-
-</BODY>
-</HTML>