I just got my new pc, from PII with ATI Rage Pro to a PIII with geforce card. Commercial games work fine, but my own stuff works very slow. It was written with directx5, but a new program I wrote with DX7 doesnt work at all, I get an setdisplay FAILED message. It works just fine on my old pc, even on a 486 it still works. Can anyone tell me what could be wrong? Oh yeah, the demos that come with DX work just fine to

Since there''s talk about GeForce here, I''m just wondering if GeForce accelerates OpenGL apps? Cause when I sent my file to a friend who has a P3 with GeForce, the file only ran a bit faster compared to my P3 with ATI Rage (only a few FPS higher).

Is it the coding or GeForce doesn''t accelerate OpenGL?

Maybe it''s something like this:

Your old card supported 16 and 24bit?
Your new card supports 16 and 32bit?
Maybe you wrote your code to work for 24bit mode which would work on the old card, but now if you try to set the video mode for whatever resolution at 24bit and it doesn''t work because your new card only supports 32 bit color depths.

That could be the problem, but it depends on your code.

no no no. The ATI Rage Pro does not support 24 bit. It cannot be the problem. The ATI Rage Pro supports 8/16/32. (At least the last time I checked)

This is for the user "Someone":
okay, Geforce does Accel OpenGL (hence Quake 3) check to see what your verticle refresh rate is set to..if your monitor is set to 60hz and his his 70hz, the max frames per sec is going to 10 more than yours (unless you have disabled that in your directx settings)
I can only guess that you are using frames/sec as your speed comparison between yours and your friend computer.


-Syntax
-dieraxx@iname.com

nes8bit:

I don't know what depth bit each card can do, I was just saying that it could be one card supports a depth bit that the other doesn't and if the code always sets the display mode to a certain bit depth that it may work on some cards and it may not work on others.

Edited by - ao on 2/10/00 1:23:19 PM

To "Syntax", yeah, I''m using FPS for comparison (I mainly take the time lapsed between each frame rendered and inverse it for a simple FPS count at the moment).

But I expected the difference to be much larger since he''s having a GeForce card while I''m not...