Am 10.04.2012 19:16, schrieb Alain:

> The usual solution is to have a very thin gap between the surfaces. In
> this case, the finish of both surfaces need to be adjusted to have a
> lower reflection to compensate for having two reflecting surfaces.
> Some will instead mage the two objects overlap by a very small amount.
> The gap or overlaping is usualy set to less than 0.00001 unit.

Both solutions will add surplus interfaces between materials, leading to 
extra reflections that don't occur in reality when the distance is small 
enough.

It might be possible to work around this problem by using a small 
overlapping area, and use a texture mapping approach for one of the 
objects, using a fesnel reflective finish at the air interface side but 
a non-reflective (and non-fresnel) finish at the side interfacing to the 
other object.

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