Op 21/09/2019 om 16:26 schreef Norbert Kern:
> Thomas de Groot <tho### [at] degrootorg> wrote:
>>
>> Great stuff! Thanks for the link indeed. And a beautiful
>> interpretation/use. I must also hail the unexpected but creative use of
>> Jonathan's pebbles. Very smart!
>>
>> --
>> Thomas
> 
> Thanks,
> 
> it is a bit difficult to use the pebbles code.
> 
> It sometimes generates blck spots, when used with radiosity and together with
> its normal via pigment_pattern.
> Moreover you have to use a very low accuracy value io get the wanted effect -
> here I used accuracy normal {... accuracy 0.001}. Render time is directly
> related to the accuracy value here.
> 

Ah! Thanks for the info. The pebbles are still on my ToDo list of 
explorations, which probably means that I shall get to it in my 
afterlife ;-)

-- 
Thomas

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