Hi everybody, I am faced with a problem that I do not know how to approach, I am not even sure that this can be done in Amapi 7.04 (or Carrara 3?). See the attached sketch of a sort of a "tunnel" shape. Here's my problem: I want to model the surface facing downwards into a quilted surface, i.e. like the geometry you all know from dune-blanquets or winter-anoraks. The pattern should be in squares, spread out diagonally over the entire surface, but maintaining the straight profile lines (obviously the squares will be cut at the edges of the surface). Can this be done? Is there a tutorial somewhere adressing this sort of problem? Thank you.