[Fluxus] pdata size behavior

[gabor papp]

hi Glauber,

> err data, but this is a bit tricky as there are much more pdata than
> vertices, and preferably i would like a one-to-one mapping:
primitive vertices and all other pdata are duplicated, so we have 
separate faces. you could try (poly-convert-to-indexed), which removes 
duplicate vertices, but since it's automatic it probably won't give you 
the expected result. you can also try (build-nurbs-plane), which also 
has additional vertices, but only one vertically and horizontally, 
because of the nurbs behaviour. so you could have a 10x10 pdata array by 
calling (build-nurbs-plane 9 9).

hope this helps,
gabor