I just arrived from holidays the very night the compo was about to end. Thought for a little maybe to do a symmetrical voxel polar effect, from some old sources but here I didn't had the compiler ready, and in the laptop where I originally had this project, I had uninstalled the OS at the time. And time was few.
But when I saw there weren't enough entries, maybe I should have made some fast thing in SDL just to contribute. But now is too late.