I've got a curve which follows the edges of a mesh. This curve is done manually, and I'd like to keep it this way. The mesh has no edge loops that I can use to duplicate them and separate them to be used as a curve.
I'd like to make the curve to follow the actual surface of the mesh, the front part. I've tried using shrinkwrap modifier into the mesh, but althought it has worked for me once with a curve, it's been impossible to replicate that with other curves:
With shrinkwrap, it's a mess no matter which settings I use, and it just deforms the mesh and snaps back and forth without any control:
I've tried also to "draw" the curve with the "Surface" checked on the Tool menu, but it's not accurate enough and as soon as any point is moved, it just leaves the surface. And I've tried various modes of "snap" mode without success.
Is there any way in which I can draw the primary shape of a spline and project it in a mesh surface, just on the front face of it, and be able to modify it without losing that "snap"?