[quake3] IRIX port running

[Frank Everdij]

Quoting vincent at cojot.name:

> On Mon, 14 Nov 2005, Frank Everdij wrote:
> 
> > Hi all,
> >
> > I'm Frank/dexter1 and together with Mare and some of my mates we have
> > ported icculus.org Quake3 to SGI IRIX systems. Currently we have it
> > running pretty clean on Octane2 systems and O2 systems. I have it also
> > working on older I2 Impact systems, but am experiencing some
> > texture glitches.
> 
> Just curious, what texture glitches are you experiencing?
> 
> My Solaris/Sparc experience has been less than satisfactory, even at the 
> latest OpenGL and Graphics patch level:
> 
> - on XVR-1000 graphics (MAJC-5200 based, 360Mb RAM), I had to disable q3's 
> OpenGL extensions otherwise the walls would look mostly pitch black.
> 
> - on XVR-600 graphics (3DLabs based, 128Mb RAM), I could run with 
> increased speed using q3's OpenGL extensions -but- the sky (q3dm3, etc.) 
> would never be right: The walls and buildings textures would 'splash' the 
> sky, leading to a confusing display..
> 
> Anything similar on your port?

Hm, nor really. On Impact systems (I2 and Octane) we experience texture
corruption like:

- Rainbow effects on objects, i.e. rotating armors looks like a patchwork of
color-rotating banded textures.
- Sky is sometimes black, or has greenish stripe texture, which change when you
move (!)
- Digits, like the Hitpoint counter, is readable, but the textures are shifted
downwards halfway, so i only see the top of the digits. Where the top of the
digits should be, i only see garbage.
- Similar to the digits, the crosshair, which is default a circle with a point
in the center, looks like a crescent moon.

The menu and initial screens are fine, only when the arena is loaded i see these
artifacts.
I infer that this is a deficiency on IMPACT systems, possibly the limited
texture size of 4 MB. O2's which have arbitrary sized texture support, and
Octane2 VPRO with texture sizes of atleast 8-13 MB do not seem to be affected.
I'll test again someday soon with extensions disabled, to see if this is the
culprit.

HTH,

Frank
-- 
drs Frank Everdij  Email:F.Everdij at citg.tudelft.nl  Tel:01527-88202  Room:6.34
System Administrator for Structural Mechanics
Dept. of Civil Engineering TU Delft