i'm doing the cartoon character tutorial, and the process is great. 1) sculpt the base mesh quickly, then 2) use the pen tool to quickly lay-down strips of polygons (quads) that are constrained to the background mesh.
the problem i'm facing is that once i leave the pen tool, and go into edges or vertices mode. the constrain to background no longer applies. so when i use the transform tool, it detaches its constraint from the background mesh.
i'd like to be able to get back into using the pen tool, after i leave it, and editi the points of the polys the way it behaves when i'm originally laying them down with the tool... but i dont want to necessarily create more points, just edit the existing vertices that adhere to the background constraint...
does that make sense?