Doom3 ProjectUAC_r6_2
https://www.youtube.com/watch?v=hbDnxzUlb6M

Right: PowerMac G5 DP 1.8GHz, Radeon 9600Pro 128MB AGP
Left: PowerMac G5 DC 2.3GHz, Radeon X1950Pro 256MB Pci-e

SDL_2.24.0 Libraries
TinyGL-Update-2022-09-08

On the Radeon X1950 machine, mouse movement does not work, only when you hold down the mlook key you can move the figure forward and backward. I have two identical mice.