>> The noisy look is a combined effect of the filtered color of the 
>> object and the checkered plane which is reflected on and in the 
>> object. If you want no noisy effect here, you have to set filter to
>> 0 or change the pattern of the plane.
> 
> I have said some stupidity, the checkered plane is not in cause,
> only the filtered color cause the noisy effect. Maybe it is a
> side-effect of the polynomial object, since the noise is not present
> with a box.

I know. But how can I fix that? (No, replacing the poly with a box is
not an option. ;-))

L.

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