BRDF data sets

General questions about Indigo, the scene format, rendering etc...
Post Reply
5 posts • Page 1 of 1
User avatar
TerraMatrix
Posts: 13
Joined: Thu Jan 17, 2008 6:19 pm

BRDF data sets

Post by TerraMatrix » Tue Jun 24, 2008 7:41 pm

Don't know if this would be of use to anyone, but here are a couple sites with BRDF data in different formats.
http://www.graphics.cornell.edu/online/ ... index.html
http://www1.cs.columbia.edu/CAVE//software/curet/
I'm sure brdf is doable in Indigo, but as to how you can take these sources and get them to work... I haven't tried yet. I'm still a few Indigo versions behind, anyway. Anyone have an answer?

User avatar
pixie
Indigo 100
Posts: 2345
Joined: Sat Dec 29, 2007 4:54 am
Location: Away from paradise
3D Software: Cinema 4D
Contact:

Post by pixie » Wed Jun 25, 2008 1:18 am

It would be very interesting being able to use this values, a bit like we presently do regarding camera response functions

User avatar
Kram1032
Posts: 6649
Joined: Tue Jan 23, 2007 3:55 am
Location: Austria near Vienna

Post by Kram1032 » Wed Jun 25, 2008 4:57 am

Hum, I didn't have a very close look, but as I saw it 'till now, it's not like tabulated spectrum but more like a mix of nk and IES data... (angle-based...)
I'm not sure if that's convertible but it looks nice :)

User avatar
OnoSendai
Developer
Posts: 6243
Joined: Sat May 20, 2006 6:16 pm
Location: Wellington, NZ
Contact:

Post by OnoSendai » Wed Jun 25, 2008 8:14 am

Measured BRDFs would be nice, but I don't think those sources are very good measurements.

User avatar
TerraMatrix
Posts: 13
Joined: Thu Jan 17, 2008 6:19 pm

Post by TerraMatrix » Wed Jun 25, 2008 6:35 pm

I see, I'd assumed there was an established file format for profiles. Now I see that's not the case.
Does anyone know if this is something that absolutely must be done with precise instruments and exactly controlled conditions? Or could someone with the time and the technical skill build a scanner themselves? (of course if you hace unlimited funds you can pretty much do anything), but maybe a few thousand in this instance?
So far I've only found this to be of much help: http://www.cs.princeton.edu/~smr/cs348c ... paper.html
Written over 10 years ago. I didn't even know they were doing this that long ago!

Post Reply
5 posts • Page 1 of 1

Who is online

Users browsing this forum: No registered users and 28 guests