Slime wrote:

>>What causes povray to render some parts unsmooth although the
>>norm-vectors seem to be calculated right?
> 
> 
> 
> That particular triangle mesh has some extremely thin triangles inbetween
> the larger ones. This is most visible near the lower left of the wireframe
> image, right below where the banding begins in the other image.
> 
> This is causing a large part of the interpolation of normals to be done in a
> very tiny space, so the normals of the adjacent larger triangles which make
> up 99% of the surface in the problem areas do not match up.
> 
>  - Slime
>  [ http://www.slimeland.com/ ]
> 
> 
Whow, thats good. I have not seen this in the image i have posted but in 
a later zoomed picture. I have posted in p.advanced_users that i want to 
post the new picture tommorow.
The CAD-program makes these small triangles and the norm-vectors are 
calculated bad ... And i was looking for the error in my java-program 
for days ...

As mentioned in p.advusers i will try a newer version of the cad-program 
(caddy ++) to see if there is something new ...

Hartmut

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