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Exit portal tests

Posted: Mon Jun 25, 2007 3:16 am
by OnoSendai
Results from first cut of exit portal code.
The exit portal consists of 2 triangles in a rectangular configuration covering the opening to the sky. The only lighting in this scene is from the physical sky + sun model.

This is a tricky lighting situation for the usual techniques, because of the small opening in the roof, which is tricky to sample.
MLT does better than bidir, but the blotches are still kinda nasty. The exit portal version easily performs the best.

Posted: Mon Jun 25, 2007 3:21 am
by manitwo
fantastic!!! can't wait :twisted:

Posted: Mon Jun 25, 2007 3:41 am
by oodmb
are you going to make the exit portals topology and scene based or user defined? my personal view is that defining the exit portal in a scene is a little like modeling the kd tree by hand

Posted: Mon Jun 25, 2007 3:44 am
by okazaky
WOOOOW! That's a big difference between #1 and #3!
Great!

Posted: Mon Jun 25, 2007 3:50 am
by OnoSendai
oodmb wrote:are you going to make the exit portals topology and scene based or user defined? my personal view is that defining the exit portal in a scene is a little like modeling the kd tree by hand
User defined.

Posted: Mon Jun 25, 2007 4:14 am
by CTZn
What does that mean ? Would the user have to create geometry to indicate where the portal is ?

Indeed the difference in performances is HUGE !

Edit: BTW Ono what sampling method is used with portals ? bidir or mlt or any or ... ?

Posted: Mon Jun 25, 2007 4:16 am
by oodmb
well, maybe somebody can make a python script for blender that does it

Posted: Mon Jun 25, 2007 4:20 am
by CTZn
Maybe within Indigo, using importance sampling to determine the portal zone ?

Posted: Mon Jun 25, 2007 4:20 am
by suvakas
Awesome!
Oh man.. can't wait to test this baby out.

Posted: Mon Jun 25, 2007 5:56 am
by filippo
it's fantastic .......thi option it will be inserted in Indigo 0.9?
when it's will be relesed?
filippo
sorry for my poor language...
thanks ono!!!!!!!!!!!!1

Posted: Mon Jun 25, 2007 5:58 am
by OnoSendai
Yes it will be in 0.9,
don't know when that will be out.

Posted: Mon Jun 25, 2007 6:34 am
by arneoog
:shock: :D
Now I can make even more stuff in no more time! :D

Coooooooool 8)



Very nice work, as always, Nick :) :P

Posted: Mon Jun 25, 2007 7:39 am
by ThatDude33
This is awesomeeee! (with 4 e's).

Great Great Great Great addition!!!

Posted: Mon Jun 25, 2007 8:11 am
by Olis
Well, there is not much to add. Simply brilliant! :D

Posted: Mon Jun 25, 2007 8:43 am
by Kosmokrator
very very good Ono...but..eventualy...what is the user-setup for this feature? some exit portals true-false switch or something else??? :roll:


great work keep it up!! :wink: