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On 19.12.10 18:25, JSmith wrote:
> clipka<ano### [at] anonymous org> wrote:
>> Am 19.12.2010 17:09, schrieb JSmith:
>>> Hi Users,
>>>
>>> I was wondering if it's possible to seed the noise generators such as f_noise?
>>
>> No, not without changing the POV-Ray source code.
>>
>> You can add a random offset to the function though, i.e.
>>
>> #declare R = seed(4711);
>> #declare Rx = rand(R);
>> #declare Ry = rand(R);
>> #declare Rz = rand(R);
>> #declare my_f_noise3d = function( f_noise3d(x-Rx,y-Ry,z-Rz) }
>
> Thanks for the reply!
>
> Will seeding for f_noise be implemented in source in future releases?
Well, note that noise isn't a simple random function you can "seed". Perlin
noise is a bit more complicated than that. A random offset position will
pretty much give you a good "random" seed.
Thorsten
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