> Am 15.07.2012 17:54, schrieb nemesis:
>> Em 14/07/2012 16:59, clipka escreveu:
>>> The moon rendered from an image map (left), and from a 20-th order (400
>>> coefficients) spherical harmonics approximation thereof (right) using a
>>> patched version of POV-Ray.
>>>
>>> Looks like I got the basic spherical harmonics math right.
>>
>> cool!
>>
>> Does it have any uses besides making textures look smeared beyond
>> N64-level?
>
> Yes: Serving as a testbed for the spherical harmonics math ;-)
>
> I hope to use SH for various improvements to radiosity quality in some
> future version of POV-Ray.

And, if variable ior is ever tackled, I think that it may also help. If 
you can smooth out the variations, the path evaluation should be easier...

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