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Post Cornell Box Renderings Here
Posted: Thu Feb 14, 2008 4:40 am
by Bubbaloo
Made quickly as a test.
Rendered to S.L. 17 at 2000 px.
The box is completely closed with only the one light source.
Feel free to post your renders here too.
Maxwell does such a great job with bouncing light around in this type of rendering, I'd like to see what others could come up with.
If you aren't familiar with them:
http://en.wikipedia.org/wiki/Cornell_Box
I used a little scattering simulens on this one.
The glass is "Low Grade Glass" from the wizard.
The light is a preset cold flourescent 65 watt increased to 100 watts.
Box is 8 ft wide and 10 ft high if I remember correctly.
Posted: Thu Feb 14, 2008 5:16 am
by sam7
Hi!
I did these two with maxwell beta quite a while ago:
Posted: Thu Feb 14, 2008 6:05 pm
by -Adrian
Very clean Bubbaloo. The filleted box seems to show a bit faceting though
Posted: Thu Feb 14, 2008 6:08 pm
by Bubbaloo
Thanks!
I noticed that the chamferbox object that I used wasn't smoothed about half way through the rendering and said Oh Well...
Posted: Thu Feb 14, 2008 8:48 pm
by def4d
not enough segments in the fillets i think!
An old anisotroped one:
http://img249.imageshack.us/img249/1802 ... 206yh2.jpg
Posted: Mon Apr 07, 2008 11:43 pm
by KurtS
water test, with real caustics. Visible caustics because we do not look through the water surface.
Posted: Mon Apr 07, 2008 11:59 pm
by Bubbaloo
Cool!
On that note, shouldn't there be caustics reflected on the walls?
Posted: Tue Apr 08, 2008 12:25 am
by KurtS
Yes, maybe at SL 20? this is SL 10...
Posted: Wed Apr 09, 2008 12:42 am
by KurtS
here is the same scene at SL 18.14
Posted: Wed Apr 09, 2008 12:57 am
by giacob
no reflected caustic yet... is that a normal behaviour?
Posted: Wed Apr 09, 2008 1:13 am
by KurtS
I don't think water will reflect much light from this angle. Most of the light will pass through the water surface and... stay down there for a while ... at least as long as Maxwell Render is having these "issues"...
Posted: Wed Apr 09, 2008 1:24 am
by giacob
one could make a try with light at less perpendicular angle...
Posted: Wed Apr 09, 2008 3:13 am
by mverta
There are absolutely reflected caustics in that render... clear as day.
_Mike
Posted: Wed Apr 09, 2008 8:11 am
by giacob
on the walls above the water..?... perhaps but they are almost totally invisible
.....
i see just some very feeble little caustic here and there...
perhaps they should be so little and feeble,,,
instead under the water they are very strong and ther are many of them.
... seems strange
Posted: Wed Apr 09, 2008 9:31 am
by Fernando Tella
That's fresnel effect, I think. Set the emitter on the side wall near the water and you'll see much more reflected and less refracted.
