@PaQ : cool try of the 2D adaptation from my little image! Bravo!

Else
ZSurf 4 works like a charm!

Just difficult to find the good format bmp! (for me only prog Paint : 24 bits works! :)

Here texture from my old PhotoImpact more than 20 years old!!! :)





Of course another infinite possibilities! :) Render the very cool free SimLab Composer lite! ;) (max 1920 *1080 - Real Time)