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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.
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Attachments:
Download 'sh.png' (107 KB)
Preview of image 'sh.png'
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From: Christian Froeschlin
Subject: Re: Playing around with spherical harmonics
Date: 14 Jul 2012 22:37:09
Message: <50022cd5@news.povray.org>
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pure brilliance ;)
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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?
Post a reply to this message
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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.
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> 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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Am 16.07.2012 01:02, schrieb Alain:
>> 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...
I don't see how spherical harmonics could be applied to /that/ feature.
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