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MERL BRDF Database

Posted: Thu Mar 26, 2015 1:26 pm
by Jolbertoquini
Hi Guys,

I find really interesting this data from MERL http://www.merl.com/brdf/ a lot materials http://people.csail.mit.edu/wojciech/BR ... ase/brdfs/and I know Renderman http://lollipopshaders.myshopify.com/pr ... risstarter,Vray,Iray,mentalRay via plug do you thing would be possible to have similar setup at Octane as base preset... I'm maya user that's way I think preset shaders :lol:

Thanks
Jo

small video

Re: MERL BRDF Database

Posted: Thu Mar 26, 2015 4:15 pm
by Jolbertoquini
Hi Guys

I'm also find this page is really interesting for all types of BRDF...I just wondering each type we could have at Octane or each of those Octane use.

Phong (1975)
Blinn-Phong (1977)
Cook-Torrance (1981)
Ward (1992)
Oren-Nayar (1994)
Schlick (1994)
Modified-Phong (Lafortune 1994)
Lafortune (1997)
Neumann-Neumann (1999)
Albedo pump-up (Neumann-Neumann 1999)
Ashikhmin-Shirley (2000)
Kelemen (2001)
Halfway Vector Disk (Edwards 2006)
GGX (Walter 2007)
Distribution-based BRDF (Ashikmin 2007)
Kurt (2010)

Or a different one. sorry I didn't find on the manual
http://wiki.nuaj.net/index.php?title=BRDF#BRDF_Models

Re: MERL BRDF Database

Posted: Sat Mar 28, 2015 1:41 pm
by realise
+100 to these suggestions.

The Disney plausible model is a delight to work with - much better than the spec/gloss model (in which you can make implausible materials quite easily if you don't know what you're doing).

The Merl database is a fantastic array of materials. They provide good solid measured jumping off points for any photo-real material.

Otoy: Like the documentation, but there's haven't been able to deduce which models are used in the underlying code; please can you elaborate?

Paul