Re: [Algorithms] RE: RE: Spherical Harmonics again

[nearaz <ne...@in...>]

> My bad. Yeah, PRT uses SH. The original authors of the SIGGRAPH "SH paper"
> now propose Wavelets to perform "PRT". I'm quite interested in other 
> basis functions (with better locality if that is the right word) 
> instead of SH for non-self-shadowing, non-interreflected 
> hemispherical lighting approximation.

Peter Pike has his newest paper (bi-directional radiance transfer) up on his 
site. I haven't read that carefully yet, but it seems some way to combine per-
vertex coefficients and texture-based stuff to get PRT at nearly pixel level, 
at nearly-realtime rates :)

There's also "Matrix radiance transfer" by Kautz and Lehtinen (in Sig3D), 
that discusses alternative to SHs - directionally locally supported basis set 
(if I knew what that mean :)).



Aras Pranckevicius aka NeARAZ
http://www.gim.ktu.lt/nesnausk/nearaz/