Re: Undershooting in spherical harmonics generatedbycubemap convolution
"Jarkko Lempiainen" <[email protected]>
| Newsgroups | gmane.games.devel.algorithms |
|---|---|
| Message-ID | <B1F4E63C8DDD422C8FDAE495CB5A473C@Tikru> |
FWIW, radially symmetric SH is called zonal harmonics. Cheers, Jarkko -----Original Message----- From: Alen Ladavac [mailto:[email protected]] Sent: Thursday, May 07, 2009 1:50 PM To: Sam Martin Cc: Game Development Algorithms Subject: Re: [Algorithms] Undershooting in spherical harmonics generatedbycubemap convolution 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 ---------------------------------------------------------------------------- -- The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com _______________________________________________ GDAlgorithms-list mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/gdalgorithms-list Archives: http://sourceforge.net/mailarchive/forum.php?forum_name=gdalgorithms-list ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com _______________________________________________ GDAlgorithms-list mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/gdalgorithms-list Archives: http://sourceforge.net/mailarchive/forum.php?forum_name=gdalgorithms-list