Ha! For some reason I thought of the sphere as not smooth (all the tiny little walls/polygons that make it look smooth). But that’s a great point! It would indeed be just a matter of radius and normal. 🤔
I’ll start there. Hopefully I can recreate the engine for spheres. Then maybe if my brain ever heals (lol) I can try more complex objects.
Thanks Martin!
ps. Thom, if you ever get to these questions, would love to hear your thoughts too.