How to make a screensaver?

Hi, guys:)
I would like to make my own 3D screensaver but dont know what to start with. May be you can advice me something???

Screensavers on Windows are just ordinary PE programs with a .scr extension, if I recall correctly. A lot of the screensaver systems for UNIX do the same. You should start by learning a programming language and OpenGL.

I think here is what you are looking for.