Rune Winsevik <runew@SPAM?NO!compusoft.no> writes:
> 
> I've run into this problem: When we're modelling a tranparent object and
> place it on another surface (a floor, a table etc.) we get an ugly
> effect. The bottom surface of the transparent object will have the same
> y-value as the surface that the object is placed on. Is this something
> POV don't like? 

This is exactly the point.

> Can someone explain to me why this happens?

Povray has problems to detect which surface is the upper one. So due to
rounding error it choses the bottom of the transparent object for one ray 
and the floor for another one.

Solution:
Put the transparent object slightly above the floor.

I hope this helps.

ThW

P.S.: Please don't post HTML-code to newsgroups.

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