I am building an asteroid - a totally irregular shape - in VW for my own amusement. I have successfully hollowed out the interior of my asteroid in the way I want, but the exterior is clunky. I made it from 3 intersecting extrudes, which isn't really satisfactory. How do I do a more construct? I am happy to draw a series of contour lines to build it from, but can't get them to join up. Or are there tutorials out there the you can refer me to?