32-bits Z-Buffer on ATI Radeon video cards works - here's how

PopsiclePete

Mission programmer
Many of you have ATI Radeon video card and can't play Standoff in 32-bits Z-buffer mode.

I've built a second computer for my wife with spare parts, and the best video card I was able to salvage was a ATI Radeon 8500 LE 128 Mb. I installed the lastest catalyst drivers and control panel (version 1.2.2172.2074) for the card, and took a look at the options there. To my surprise, 32-bits Z-buffer is disabled by default in the ATI driver. Simply enabling the option allowed me to play Standoff in 32-bits mode !

ZbufferOnATI.JPG
 

AD

Finder of things, Doer of stuff
Thats really great... However which Version of catalyst are you using? I have a Radeon X800xt and still can't get it to work. That option doesnt seem to exist in my Catalyst control center and the options you can see in the screenshot below don' fix it either.
 

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Pedro

Admiral
AD said:
Thas really great... However which Version of catalyst are you using? I have a Radeon X800xt and still can't get it to work. That option doesnt seem to exist in my Catalyst control center.

Ditto, on card model and problem
 

PopsiclePete

Mission programmer
AD said:
Thats really great... However which Version of catalyst are you using? I have a Radeon X800xt and still can't get it to work. That option doesnt seem to exist in my Catalyst control center and the options you can see in the screenshot below don' fix it either.
I used Catalyst version 05.13, you use version 06.1. I tried downloading the newsest 6.2 and installing it on my system, and the option is still there :confused: There must be something else at work here...
 

AD

Finder of things, Doer of stuff
Will_Styles said:
I have the same problem and I have a 9600. Maybe ATI removed 32 bit z-buffer support on newer cards?


At this point, that sounds like a likely possibilty
 

Pedro

Admiral
You have to wonder why its an option you have to enable on any card, its not like it should be a hardware issue as I use 32bit zbuffer on my x800xt with OpenGL for the majority of my test apps.
 

Sonic TH

Spaceman
Yeah wouldn't seem to make sense to stop supporting it. Maybe it's for debugging, might be best to check ATI's support forum to see if they mention what's going on.
 
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