Re: More SH exponentiation questions
Peter-Pike Sloan <[email protected]>
| Newsgroups | gmane.games.devel.algorithms |
|---|---|
| Message-ID | <[email protected]> |
I'm not really sure what you are talking about. You might want to email John directly, I think we just computed a bunch of pairs and then built the table as a function of log magnitude (after DC isolation.) You could pose computing the ab texture itself as a least squares problem, and include training examples that were the result of multiple spheres (instead of just single spheres), but I don't think we did that... Are you referring to figure 3 in the paper? It is really just showing the OL pretty much just works as long as the magnitude is small enough... Peter-Pike Sloan Date: Tue, 10 Nov 2009 16:58:04 +0800 From: [email protected] To: [email protected] Subject: [Algorithms] More SH exponentiation questions Has anyone implemented SH exponentiation AND managed to approximate the optimal linear (OL) values for 2 or more sphere occluders? The SH paper briefly mentioned/implied that the authors managed to fit the OL approximation to multiple spheres, which still has some artifacts with inaccurate/lighter occlusion, but is still preferable to the single sphere approximation when dealing with multiple sphere occluders, which is common in most "practical" cases. If anyone has some idea how the fitting to multiple spheres thing is done - that'll be awesome. ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ 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