Cliff Bowman wrote:
> 
> Hi - I'm trying to write a converter for Wavefront .OBJ file to uvPOV.
> It's going quite well so far but... there are a few oddities to some
> OBJ files which I've yet to find "the best" solution to.
> 
> For example.
> 
> Some .OBJ faces comprise more than 4 points. I've successfully tested
> turning 4 points into 2 triangles, and this seems to work well. Does
> anyone know how to reliably turn faces with more points into triangle
> meshes? Or has anyone happened on a procedure which "happens to work"
> (like my 1,2,3 - 3,4,1 procedure for 4-point faces)?
> 
> Other issues revolve around .OBJ files containing degenerate triangles
> (sorted. Silly, but sorted) and having normals for only SOME of the
> verteces of a triangle - at the moment I'm fudging this by using a
> standard triangle (instead of a smooth triangle) for any triangle
> which doesn't have a full set of normals.
> 
> Any help would be greatly appreciate :)
> 
> Cheers,
> 
> Cliff Bowman
> Why not pay my 3D Dr Who site a visit at http://www.who3d.cwc.net/

I wonder if Thomas has had similar problems. I have noticed that when converting
some models with 3DWin that no matter what the smoothing angle specified there
are some times a few to several triangles that are still represented as simple
triangles instead of as smooth triangles.

-- 
Ken Tyler

See my 850+ Povray and 3D Rendering and Raytracing Links at:
http://home.pacbell.net/tylereng/index.html

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