I got a strange problem I can’t seem to find the cause of it. I’m rendering static geometry using only display lists that I compile only once of course. But then I get around 20 fps at most on a Mac while I get 60+ fps on a PC with nearly the same configuration.
I got a G5 with a Radeon 9800 Pro so this puzzles me a lot. Here’s what I turned off:
Texturing
Blending
State changes
Lighting
Depth test
Depth write
Alpha test
basically…there is nothing left and I still get very bad performances. The CPU doesn’t seem to be the bottleneck either as if I don’t make any glCallList calls, the fps jump up a big step to 80 fps or more.
I even made sure the render surface was hardware accelerated by querying it using glDescribePixelFormat and I even set the rendered ID manually to the one shown in OpenGL Info for the hardware accelerated ATI driver.
By the way I’m running OS X Panther 10.3.2
Does anyone have a clue what could be the problem?