Search found 42 matches

by papaboo
Fri Jul 12, 2013 9:42 am
Forum: General Development
Topic: Sampling Ashikhmin-Shirley BRDF
Replies: 4
Views: 4509

Re: Sampling Ashikhmin-Shirley BRDF

Arh yes I could do that, but it would probably introduce too much noise in edge cases. I was hoping there would be some combined sampling technique, but if not I'll simply split it into two BRDFs and let my BSDF sample them along with any other BRDFs. Then I can combine them again once I introduce c...
by papaboo
Thu Jul 11, 2013 10:14 am
Forum: General Development
Topic: Sampling Ashikhmin-Shirley BRDF
Replies: 4
Views: 4509

Sampling Ashikhmin-Shirley BRDF

Hey everyone, I'm attempting to implement the Ashikhmin-Shirley BRDF described in An Anisotropic Phong BRDF Model, but I'm having a hard time with the sampling. In the Monte Carlo sampling section of the paper they describe how the specular part of the BRDF should be sampled by sampling each quadran...