Re: Null triangles

[James W. <ja...@fr...>]

Roger Holmes wrote:
> What do you all think on this. When certain tri-grids get turned into  
> tri-meshes, they sometimes generate null triangles because two of the  
> four corners of one of the grid quadrilateral are coincident. For  
> instance the original QuickDraw3D sample code generated a sphere and a  
> cone with Tri-grids and at the poles of the sphere and the point of  
> the cone, this happened. Would it be worthwhile to not generate these  
> null triangles, or should the tri-mesh constructor function filter  
> them out or should we continue to filter them out every time we render  
> or do processing of triangulated  data such as when doing CSG  
> calculations.

I don't have a strong opinion, but it might be reasonable to filter out 
empty triangles in e3geom_trigrid_cache_new.

-- 
   James W. Walker, Innoventive Software LLC
   <http://www.frameforge3d.com/>