Alain CULOS wrote:
> 
> To make things simple to explain, say you have A, B, C and D all simple
> objects (i.e. planes).
> Now make E as the intersection of A and B and make F as the intersection of
> C and D.
> The final object, called G is the difference of F less E.
> Making that object G semi-transparent and semi-reflective, putting a sky
> sphere that is a gradient (just to make any reflection or transparency
> obvious) shows the border line of C and D inside G (if they intersect at all
> with the final G object).
> Now if you use a merge all spurious border lines disappear.
> 

ummm.... I tried to create your scenario, but I couldn't see a bug.  Could
you post a scene (complete w/ camera, lights, background, etc).  I'll try
to track down the bug.

-Nathan Kopp

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