>>But I am looking rather for a solution that keeps the distinction
>>between modeling and texturing. E.g modeling the bricks of a wall
>>and then tossing in some dust, making it bumpy or rough here and
>>there and the like.
Christoph Hormann wrote:
 >
> In short: this won't be possible.  Trying to make real geometric
> displacement in a raytracer without a mathematically consistent method
> will produce rubbish. 

Quite true.
Of course such a method has to work consistent, as we can make
in general almost no asumtions about the geometry of the object a
given intersection belongs to.

Hermann

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