Re: [Algorithms] Undershooting in spherical harmonics generated bycubemap convolution

[Alen L. <ale...@cr...>]

Sam wrote at 5/6/2009:
> It really is just a scalar - this is one of the very cool things
> about SH. When represented in SH, the blurry version is just a
> scaled version of the non-blurry version. This is true when
> convolving against any radially symmetric function. The radially
> symmetic bit effectively means the result doesn't depend on the
> m-components of the function, and turns into just one scalar for
> each L.

Ah, scalar _per band_! Yes, that makes sense. I originally thought you
ment scaling all the factors by the same scalar, which sounded weird.

> You should think of the L-bands in SH as frequencies.

Indeed. I somehow skipped over that part. It makes the whole concept
much easier to digest. :)

Thanks,
Alen