Drawing Tools Subs or Functions with Demo

[bplus]

You wouldn't happen to have a link to the forum where you found the original code would you?

The original forum, RetroBasic, is gone but it was preserved in a Board at AllBasic Forum.

I can't find exact code from ZXDunny I used but this does the same thing, sorta, projecting an image into spheres:
https://retrobasic.allbasic.info/index.php?topic=721.0

I believe I posted a version of this here too. This one does not use ASin.

I think I was main poster of code at that place!

Found it on You Tube: https://www.youtube.com/watch?v=0EGDJybA_HE
There is the code with ASin!