Well… I’ve turned the problem around and around, and I’ve come to the conclusion that this is impossible to solve.
You just can’t cut a part of a model and replace it with another part from that same model. Case closed.
I’ll keep looking into the outlines now. I have a topic right there about porting the cartoon painter example to C++:
panda3d.org/forums/viewtopi … 9230#89230
No answers yet: I just need to understand what are base.cam2d and base.makeCamera… and understand how to mimic their behaviors in C++.