Hi Bob,

> I was under the impression that the format would deal with triangles a bit
> differently, i.e., not necessarily straight lines.

Can you remember where you saw that information?

I've read through the 3MF spec from here:
http://3mf.io/wp-content/uploads/2015/04/3MFcoreSpec_1.0.1.pdf

and the only mention of geometry that I've found in there is about triangles made up of 3 straight sides.


One of the things which I found confusing about 3MF initially was their main web page shows a sub-d smoothed model with quads in it on as their background graphic, so I read through the spec expecting to find something related to that in it but there was nothing mentioned. So there's a bit of a disconnect there between their fancy background graphic and what the actual spec allows for.

- Michael