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riastradh-xf86-video-intel-2-7-1-pre-2-21-15:1.2
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netbsd-5-2:1.1.1.1.8.1.0.4
netbsd-5-2-RELEASE:1.1.1.1.8.1
netbsd-5-2-RC1:1.1.1.1.8.1
netbsd-5-1-2-RELEASE:1.1.1.1.8.1
netbsd-5-1-1-RELEASE:1.1.1.1.8.1
netbsd-5-1:1.1.1.1.8.1.0.2
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netbsd-5-1-RC4:1.1.1.1.8.1
netbsd-5-1-RC3:1.1.1.1.8.1
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netbsd-5-1-RC1:1.1.1.1.8.1
netbsd-5-0-2-RELEASE:1.1.1.1
netbsd-5-0-1-RELEASE:1.1.1.1
netbsd-5-0:1.1.1.1.0.10
netbsd-5-0-RELEASE:1.1.1.1
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netbsd-5-0-RC2:1.1.1.1
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netbsd-5:1.1.1.1.0.8
netbsd-5-base:1.1.1.1
netbsd-4-0-1-RELEASE:1.1.1.1
netbsd-4-0:1.1.1.1.0.6
netbsd-4-0-RELEASE:1.1.1.1
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netbsd-4-0-RC4:1.1.1.1
netbsd-4-0-RC3:1.1.1.1
netbsd-4-0-RC2:1.1.1.1
netbsd-4-0-RC1:1.1.1.1
abandoned-netbsd-4-base:1.1.1.1
abandoned-netbsd-4:1.1.1.1.0.2
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netbsd-4-base:1.1.1.1
MESA-6_4_1:1.1.1.1
MESA:1.1.1;
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comment @# @;
1.2
date 2009.04.20.04.09.44; author mrg; state dead;
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1.1
date 2006.04.22.15.17.17; author macallan; state Exp;
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date 2006.04.22.15.17.17; author macallan; state Exp;
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date 2010.01.23.18.18.45; author bouyer; state dead;
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desc
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1.2
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@delete extremely old sources we never got around to using.
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text
@
PBuffer Rendering
PBuffer Rendering
Basically, FBconfigs and PBuffers allow you to do off-screen rendering
with OpenGL. The OSMesa interface does basically the same thing, but
fbconfigs and pbuffers are supported by more vendors.
PBuffer rendering may also be hardware accelerated.
PBuffers are getting more use nowadays, though they've actually been
around for a long time on IRIX systems and other workstations.
The
GL_SGIX_fbconfig
and
GL_SGIX_pbuffer extensions describe the functionality.
More recently, these extensions have been promoted to ARB extensions (on
Windows at least).
The Mesa/progs/xdemos/ directory has some useful code for working
with pbuffers:
pbinfo.c - like glxinfo, it prints a list of available
fbconfigs and whether each supports pbuffers.
pbutil.c - a few utility functions for dealing with
fbconfigs and pbuffers.
pbdemo.c - a demonstration of off-screen rendering with pbuffers.
Mesa 4.1 and later support GL_SGIX_fbconfig and GL_SGIX_pbuffer (software
rendering only).