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Old 11-02-2006, 03:52 PM   #1
ninevoltz
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3D games on AIGLX+Compiz (Fedora 6)


Anyone know how to start an openGL game or app with full acceleration outside of a compiz session in Fedora 6? I'd like to run 3d games without removing compiz from my desktop, can it be done?

Thanks in advance.
 
Old 11-03-2006, 09:34 AM   #2
b0uncer
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If you have Compiz running on your X, then you can't probably run apps in the same X without Compiz (since starting Compiz requires restart of X anyway, so does stopping it, if I'm right). One way is to launch a second X for the game(s), but there's a drawback: two X's running side by side on a regular desktop will eat up resources, so you better have some machine power then
 
Old 11-03-2006, 11:14 AM   #3
ninevoltz
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b0uncer,

Thanks for the reply. Do you know of an easy way choose an X startup script so you can end an X session running compositing, and start a new X session (startx without modifying xorg.conf) ?

Thanks again.
 
Old 11-07-2006, 12:48 PM   #4
JaseP
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There is a perl script called xgame that allows you to do this. Some have had success with it.
 
Old 11-07-2006, 02:37 PM   #5
95se
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Check out the "Running apps that require 3D rendering acceleration (games, etc.)" here:
http://gentoo-wiki.com/HOWTO_XGL/Tips_and_Tricks
EDIT: BTW, you will not notice a difference from having to run 2 X sessions.

However, if you are indeed running AIGLX, and not GLX, then you should be able to run OpenGL games w/o doing anything special.

Last edited by 95se; 11-07-2006 at 08:35 PM.
 
Old 11-13-2006, 09:52 AM   #6
JaseP
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That's not necessarily true as compiz/beryl turn off page flipping which is needed in some OpenGL games...
 
Old 12-01-2006, 11:56 AM   #7
JaseP
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As a follow up, I have installed Kubuntu and Beryl on my desktop machine (Intel P4 2.4GHz, 512 MB RAM, nVidia GeForce FX 5500, supposedly overclocked) and run full composite effects now... (at least the ones I want). Many games work fine. Others do not (but this is most likely related to breakage of libgl.so.2). One thing I have noticed is that runing Beryl requires much of the Card's resources, and the games framerates therefore suffer. Another thing is that often you are stuck needing to use a different resolution than your normal desktop... Don't know why that is... maybe Beryl interperets the call for a different resolution as starting a new X session...

Anyway... 3D gaming with Beryl/AIGLX is a crapshoot.
 
  


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