in /usr/lib/libGL.so.1 (which will typically load a driver in
/usr/X11R6/lib/modules/dri). This has been tested on a i915
graphics card; it should work with most open source X.org drivers.
For NVidia's proprietary drivers (which we cannot build ourselves
anyway), some more symlinks are necessary; I'll add those later.
So to get hardware-accelerated Quake 3, do:
$ nix-env -p /nix/var/nix/profiles/opengl -i xorg-sys-opengl
$ nix-env -i quake3-demo
$ quake3
svn path=/nixpkgs/trunk/; revision=4613
allow the OpenGL implementation to be overriden through the
OPENGL_DRIVER environment variable. If it is not set, we use the
implementation installed in the profile
/nix/var/nix/profiles/opengl, allowing easy late binding by the
user, e.g.,
$ nix-env -p /nix/var/nix/profiles/opengl -i nvidia-sys-opengl
might install the NVidia OpenGL implementation.
The code that does this is not specific to Quake 3: it has been
factored out into build-support/opengl/mesa-switch.sh. Presumably
any application that requires hardware-accelerated OpenGL needs it.
* Add the Quake 3 demo to the cache.
svn path=/nixpkgs/trunk/; revision=4612
