Alain wrote:
> Kirk Andrews nous apporta ses lumieres en ce 2007/06/24 07:03:
>> By "jitter", do you mean a slight amount of 
>> turbulence and
>> rotation/translation each time, averaged together?
>>
>> Thanks,
>>
>> Kirk
>>
> That jitter means some small to medium, relative to the dimentions of 
> the object, translation of the object pattern, using many instances all 
> averaged together. You need at least 10 averaged patterns for this to 
> work, and usualy over 100 to get good results. As you don't use 
> reflection, it can still be relatively fast, it become painfuly slow if 
> you have any reflection, particularly if you have self reflection.

And the pattern you derive from this will need to be encapsulated in a 
pigment_pattern{} block, in order to use pigment_maps with it:

pigment{
  pigment_pattern{ my_predeclared_jittered_object_pigment }
  pigment_map{
   [0 some_pigment]
   [1 some_other_pigment]
  }
}

~Sam

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