I've got a simple head mesh with eye holes already cut and I would like to add eyes as a separate mesh. I would like to maintain the dome-like topology of the new eye mesh while matching the existing eye hole perimeter. This is a bit of a challenge since the eye holes are bit irregular in all axes (part of the design).
I've only got a few flight hours in blender, but so far I've tried simple deform, mesh deform and shrinkwrap modifiers to match the eye mesh to the eye perimeter. I've also tried making a grid fill of the eye perimeter and then proportional editing to grab and pull out but the shape turns out pretty bad. I also tried insetting and extruding the eye perimeter to stairstep new geometry in a dome-like fashion, but couldn't get the results to be dome-like.
If I can utilize modifiers to get me pretty close then I can tweak vertices from there.
Final utility: to be separate meshes for 3d printing ... therefore the number of vertices on the eyehole don't necessarily need to match the eye.
(Next time I will probably model the eyes before making the eye holes.)