tag:blogger.com,1999:blog-8350257063773144600.post1618660723040663387..comments2024-03-08T00:18:28.525-08:00Comments on Pete Shirley's Graphics Blog: Shadow rays and I are getting a divorcePeter Shirleyhttp://www.blogger.com/profile/17871569418798062417noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-8350257063773144600.post-33813719307064349372015-07-03T07:14:54.162-07:002015-07-03T07:14:54.162-07:00Correct-- no importance sampling at all yet. You...Correct-- no importance sampling at all yet. Your point about shadow rays being importance sampling is a good one, but in my "internal vocabulary" I don't call it that-- I think of it as breaking up the integral (my internal vocabulary is wrong, but useful-- I just need to keep it internal :P). That is why shadow rays introduce complexity to the software. <br /><br />Making directions where direct illumination comes from more likely to be sampled is the next step after I fix my refraction bug. I have confirmed there is one...Peter Shirleyhttps://www.blogger.com/profile/17871569418798062417noreply@blogger.comtag:blogger.com,1999:blog-8350257063773144600.post-13057560911457949662015-07-02T23:57:48.235-07:002015-07-02T23:57:48.235-07:00Of course there's no importance sampling there...Of course there's no importance sampling there. Shadow rays ARE importance sampling.<br /><br />So you're not optimising direct illumination at all, then?Pseudonymhttps://www.blogger.com/profile/04272326070593532463noreply@blogger.com