Are you projecting on a 3D object you printed ? In this case just calibrating should be enough, modifying the mesh wouldn't be a good idea.
If the real-world 3D object doesn't exactly match the OBJ, you can use the "Edit Mesh" option in MM or modify the mesh in your 3D modeler (with more flexibility and working in 3D space, but more complex).
To move an invisible vertex in MM, there's a tweak, move the complete edge to a place where both extremities are visible, move back the point you didn't want to move, then you can move the one that was not visible.
first of all thanks
This is the workaround I have used, but it would be very nice to isolate a vertex and then select points (say 1st click to highlight it just like masks).
Yes the whole thing is made from the .OBJ but we are testing with a tiny 3d printed model.
But I hate light leaks, so it would be nais to be able to easily select points.
The model itself will be around 2 metres high and be projected from different sides.
