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Z-fighting?

Posted: Sun Jan 08, 2006 4:19 pm
by Lukin
Take a ckoser look at this shot:
Image

It looks like a z-fighting bug, but there is no duplicated brush over there (you can check the map for yourself, it's visible on the wall behind the broken red neon).
Any ideas how to clear this?

Posted: Sun Jan 08, 2006 4:23 pm
by Hipshot
I don't know about The Doom engine, but if you can, try to use a Z-Buffer of 24bits or more. zFighting dosen't need to be connected to faces overlapping, it can be when the zBuffer is renderd with low quality. Could be a driver error also...

Re: Z-fighting?

Posted: Sun Jan 08, 2006 4:36 pm
by primaltheory
Lukin wrote:Take a ckoser look at this shot:
Image

It looks like a z-fighting bug, but there is no duplicated brush over there (you can check the map for yourself, it's visible on the wall behind the broken red neon).
Any ideas how to clear this?
I have a few like that in my map right now, it went away after I deleted the brush and remade it...

Posted: Sun Jan 08, 2006 4:41 pm
by KungFuSquirrel
If nothing's overlapping, check your nearby light volumes... odds are there's a light center that's positioned planar to that face - that can cause the shadow tris to z-fight with the geometry.

Posted: Sun Jan 08, 2006 6:07 pm
by Lukin
It was indeed "light center's fault". Thanks.

Posted: Sun Jan 08, 2006 10:17 pm
by Oeloe
Lukin next time you'll want to take a screenie with g_showhud 0 (and ui_showweapon 0). :)

Posted: Sun Jan 08, 2006 10:19 pm
by Lukin
Ok, I was in a hurry when posting it.