40 random reliefs for level authors

[speedyblupi]

Sort of but not really related, does anybody now where one can find more ground textures like "roca2" and "rocb2"?  Or does anybody know how to make them?

Thanks alot.

A little heads up- I am developing the Colobot Gold version of all the original Colobot user levels, so we can play our favorite user levels with the new versions of CoLoBoT!