Geometry problems

 From:  Michael Gibson
656.37 In reply to 656.36 
Hi Matt,

> Wow, next build will have a LWO exporter?

Yup, I had not originally planned on doing this for v1, but it seems to be the only way to get n-gon polygon data into LightWave or Modo fairly reliably.

I'm glad MoI is useful to you for transferring from SolidWorks to LightWave!


> Out of interest, what are the chances of being able to mesh to ALL quads? Or
> is that not possible in order to acheive a good mesh?

It's theoretically possible, but it would require a substantially different approach to the meshing process.

The underlying NURBS surfaces are inherently quad based, so meshing just a plain surface generates quads nicely. The problem is with trimmed-away areas. Trim curves on surfaces generally go in any direction, they don't necessarily follow the same quad flow-lines of the surface.

So it's quite difficult to generate all quads with trimmed surface data, it just doesn't come very naturally, it would require a lot of complex code to try and squeeze little quads around trimming boundaries. I won't be able to dig into something that complex anytime too soon...

- Michael