I finally managed to run Cataclysm and the original Homeworld in 3d, but there seems to be a bug with the build menu. After using it, everything gets dark.
Besides, I’m not so sure about what caused the problem. I didn’t do anything to fix it, it just worked in one of my tries. And now I’m unable to get it to work again.
Both, Homeworld 1 and Cataclysm crash when I try to launch either of them with vorpx enabled (they work fine without vorpx). The windows crash report created by the original Homeworld seems to indicate there is some problem with opengl32.