Greetings,
I'm interested in drawing a 3D cone, but can't find the right plugin for this. Is there one? Also, if I drew a cone seen directly from above, such as a tower's roof (basically a circle with a central point) how would I get the sort of shading that would convey the idea this is a conical shape? The conical gradient built into the basic Paint Net version doesn't quite work in this respect. I tried bevelling, but this produces more of a spherical cupola effect. Thanks!

Hi @Ambreville
You could use the gradient with conical mode, draw it vertical.
Duplicate the layer and flip it vertical
Cut half of the circle.