And just to clarify:

> Even Michael stated earlier that it is not possible to output without tris.

This is not accurate as a blanket statement. For example the block model posted earlier in this thread can be output without any triangles, here it is again:




If your model actually has a triangular plane in it, then it will naturally generate a triangle in the polygon output there as well, since a triangle is the best kind of polygon to fit on a triangular trimming boundary.

- Michael