and would like to port one figure (600-cell) of "Polytopes" screensaver. I took a look at the source code of the built in x4x screensavers but didn't had
any idea what is needed to get the windows one (cpp) working on x4x. Does anyone knows more about it or can say weather it would be hard to port it?

Here you can download windows test and source code
Here you can find the parameters