🚀 go-pugleaf

Fred wrote:
> 
> Hi,
> 
> go to the console : write 'timerefresh' without ' '
> for those who have a 3dfx and 3dfx2 write 'gl_ztrick 1' without ' '. This
> will enable 3dfx Zbuffer. You will earn about 3 to 5 fps.

NO NO NO. GL_ZTRICK has NOTHING to do with enabling/disabling the Z-buffer.
The Z-buffer is ALWAYS enabled in Quake2.
Setting the var GL_ZTRICK to 1 allows the 3Dfx card to do some "trick" (hence
the name GL_ZTRICK get it?) with the Z-buffer memory, which requires less
processing power of the 3Dfx chipset, so this processing power can be used for
rendering the world.

That is why you see a small, but noticeable inprovement in performance.

Furthermore, if you want to compare Q2 videoperformance, NEVER use the
"timerefresh" command. It sucks, is not accurate, and very heavily depends on
your position in the map!!!! This command was written by the developers to test
some properties of the map, I think it was to check how many so called "brushes"
there are at a certain location in the map. It was NOT written to test video
performance.

To do this accurately, and comparably, use the following set of
commands/variables.

In the console, type (or create a .cfg file and exec this): 
s_initsound 0
snd_restart
timedemo 1

then type this: 
demomap <demoname>.dm2   (mostly demo1, demo2, massive1 and crusher are chosen)

This will invoke a demo, and it will play at the maximum rate possible on your
system. After it is done, the framerate will be displayed.

This value depends almost entirely on the combination of CPU and video card,
therefore it is the best way to measure your Quake2 performance.....

-- 
Greetz,

Hindrik "remove .blabla from my reply-to-address" Deelstra