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Cornell Box dimensions?
show user profile  Nanne
I'm playing around in V-Ray when I get the chance and I would like to have a Cornell Box to play around in; but I can't find the dimensions for it anywhere?

I've tried using Nik Clark's "Cornell Maker" script but that gave me a box that was 14 meter or something like that :P

Kristoffer Helander
www.kristofferhelander.se
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read 1270 times
6/9/2011 1:36:55 PM (last edit: 6/9/2011 1:36:55 PM)
show user profile  Nik Clark
Lol, yes. my script was made years ago apologies for that! You could just scale it.

I've got the dimensions somewhere. I'll try to find them.





read 1258 times
6/9/2011 1:46:50 PM (last edit: 6/9/2011 1:46:50 PM)
show user profile  Garp
http://www.graphics.cornell.edu/online/box/data.html





read 1255 times
6/9/2011 1:51:27 PM (last edit: 6/9/2011 1:51:27 PM)
show user profile  Nanne
I was hope you would show up Nik ;)

I followed your link to the Cornell University site about the box but I couldn't find any dimensions there; just obscure measurement data that I didn't wanna wrap my head around :P

Kristoffer Helander
www.kristofferhelander.se
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read 1252 times
6/9/2011 1:52:24 PM (last edit: 6/9/2011 1:52:24 PM)
show user profile  Nanne
Yes, Garp, but I can't find any actual dimensions there? I see a lot of tables with numbers but I can't figure out what are the actual dimensions or what unit they are in?

Kristoffer Helander
www.kristofferhelander.se
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read 1247 times
6/9/2011 1:54:41 PM (last edit: 6/9/2011 1:54:41 PM)
show user profile  STRAT
if you want to play around and learn vray a bit i certainly wouldnt worry about exact cornell box dimensions. they're completely not important :)





SJLEWORTHY.COM











read 1240 times
6/9/2011 1:57:43 PM (last edit: 6/9/2011 1:57:43 PM)
show user profile  Nanne
But Photometric Lights are depending on the dimensions of the scene. So I would like to have a correct box so that I can compare my renderings with other Cornell Box renderings. And besides, I'm kind of an perfectionist! ;P

Kristoffer Helander
www.kristofferhelander.se
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read 1236 times
6/9/2011 2:00:26 PM (last edit: 6/9/2011 2:00:26 PM)
show user profile  Nik Clark
The physical box they created was 55cm wide by 55 cm high by 57 cm deep. Hope this helps!

My script uses the actual points from the original, but I got the scale all wrong. repeated apologies! I keep meaning to come back to it, but I never have the time or I forget!



read 1231 times
6/9/2011 2:03:41 PM (last edit: 6/9/2011 2:03:41 PM)
show user profile  Nanne
Cheers Nik! :D

Apologies accepted ;)

Kristoffer Helander
www.kristofferhelander.se
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read 1226 times
6/9/2011 2:06:42 PM (last edit: 6/9/2011 2:06:42 PM)
show user profile  Garp
In the surface geometry section, those are the vertex coordinates (in XZY and mm).




read 1224 times
6/9/2011 2:07:23 PM (last edit: 6/9/2011 2:07:23 PM)
show user profile  Nanne
Aha, okey :) Thanks Garp :)

So Nik; you are using that data in your script? So all I have to do is to just scale it down to match my scene and I'm good to go? :)

Kristoffer Helander
www.kristofferhelander.se
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read 1218 times
6/9/2011 2:10:20 PM (last edit: 6/9/2011 2:13:31 PM)
show user profile  Nik Clark
In theory yes!

Note that the measurements are all a little bit screwy. You will notice that things are all slightly distorted.

I did another one that makes the teapot from the original Utah teapot measurements, but I never uploaded it and have since lost it.





read 1205 times
6/9/2011 2:29:22 PM (last edit: 6/9/2011 2:30:47 PM)
show user profile  Nanne
Thanks Nik, I will give it a go :)

Kristoffer Helander
www.kristofferhelander.se
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read 1196 times
6/9/2011 2:44:33 PM (last edit: 6/9/2011 2:44:33 PM)
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