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Rec.Autos.Simulators Archive

Open Gl Question (for GPL)

4 posts by 4 people · 03 May 1999 - 09 May 1999

Eric Busch 03 May 1999#465169
Sounds like you don't have a hardware accelerated OpenGL ICD installed so instead GPL is running using Microsoft's default software OpenGL driver, hence the huge slowdown (software emulation of hardware acceleration). I don't believe ATI's current ICD will work with GPL, so the OpenGL rasterizer really will not be an option for you at this time. Eric
CHStrmpt 04 May 1999#465340
Okay, I'm currently using the GPL demo 1.0.0.0.0 or whatever the exact number of 0's is. In software mode, I can get up to between 12 and 15 fps with full details, graphics, everything. This is with a P-II, 400mhz, 64 ram. I also have a Rage Pro Turbo AGP 8 meg card. So, I downloaded and installed the Open Gl patch. As soon as I load the game up with 3d acceleration on, the game crawls along at about .87 fps. What's wrong? I figured that 3d acceleration would actually speed up my frame rates. Was I wrong in assuming this? Thanks, Corey Leigh
Ken Nicols 04 May 1999#465341
The Open GL stuff needs a decent OpenGL driver underneath. I don't know how good the OGL layer is on your card, but when I tried it with my G200, I went from about 15 fps to about 10 fps, versus 22 fps for the specific G200 driver, which was rather buggy. I gave up and bought a cheap Voodoo 2 - getting over 30fps does make a huge difference! Ken
"Normal" 3d acceleration support in Windows is Direct3D acceleration. To use OpenGL acceleration you need a card that supports it, with drivers that support it. For the ATi Rage Pro series you need to be running Windows NT for OpenGL support....
Quoted text (10 lines)> Okay, I'm currently using the GPL demo 1.0.0.0.0 or whatever the exact number > of 0's is. In software mode, I can get up to between 12 and 15 fps with full > details, graphics, everything. This is with a P-II, 400mhz, 64 ram. I also have > a Rage Pro Turbo AGP 8 meg card. So, I downloaded and installed the Open Gl > patch. As soon as I load the game up with 3d acceleration on, the game crawls > along at about .87 fps. What's wrong? I figured that 3d acceleration would > actually speed up my frame rates. Was I wrong in assuming this? > Thanks, > Corey Leigh
-- Regards John Roberts

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