Hello,

I am trying to render a glass of wine, but I have some mesh problems.


The picture vino.jpg shows the problem
the different objects are exported from Pro Engineer in obj files, 
between 5000 and 6000 triangles.

The result is very strange!

I tried different settings, I also tried to let 0.1 mm space between 
wine and glass, but without sucess.


Finally, I increased the precision in Pro/Engineer and managed to export 
these objects with about 5000
triangles for the wine and more than 200000 triangles for the glass.
I  render the scene with povvray 3.5 to see the difference (vino3.jpg)

The problem is still here, but what is interesting is that:

-The glass alone gives good results
-The wine alone gives good results
-Putting the wine in the glass gives this poor result!

the problem is the same when rendering with Virtualight for example


The questions are:

1) Is it possible to render properly a plain glass with meshes or must I 
realise this with SDL
    to have a correct result?

2) Is there some options in Povray that could supress or reduce this 
problem?
    (I tried to increase max trace level to 30 without success)

3) Is this an optical problem?

Any comments, suggestions are welcome.

best regards

philippe Hay

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Download 'vino.jpg' (10 KB) Download 'vino3.jpg' (78 KB)

Preview of image 'vino.jpg'

Preview of image 'vino3.jpg'