Light Leaks - once again

V-Ray V-Ray for 3ds Max Issues
1

it seems that vray doesnt like me anymore…this time i got problems with light leaks. i searched the forum but couldnt find a solution. on this job i am using Vray 1.5 RC3, here is a screenshot to illustrate the problem

what i tried and what didnt helped to solve the issue:
* switched from lc to qmc
* turend of the filtering of the lc
* used very high irr settings
* played with the secondary ray bias
* changed the surfaceID

the walls have some thickness, there are no gaps between them.

Olli

2

It is hard to say what may cause this right away, since yo ualready tried most of the work-arounds; if you can send me just that portion of the scene though, I’ll be able to tell you more on how to solve it.

Best regards,
Vlado

3

sweet, thanks, scene is coming in a few minutes.

4

Have you tried ‘Check sample visibility’ under the IR advanced options?

5

yup, and it looks allright. no light leaks at all. once i unchecked it the light leaks are back. i am starting to think that it has something to do with the model (created by someone else in cinema4d and exported into the 3ds format).

Olli

EDIT: oops, i was using the show samples checkbox not the check sample visibilty checkbox, trying it now…

EDIT2: that seems to fix the problem…thanks !

6

well…at first it works fine, now i added some more lights and the light leaks are back…any other suggestions ?

Olli

7

Are you re-using your IR or generating a new new one each time?

8

no, always a new one.

9

for the looks of it that geometry is gonna give a huge headache!
:?

10

yup, i would remodel the whole thing but the client wants the images tomorrow. like i said, its an imported c4d model done by someone else who didnt finished the job :x right now i remove the spots in ps and it seemsto work quite good, luckily there are ust a few leaks…

11

I’m not sure what else to try at this point, maybe Vlado has some more tips. I know it can be painful working with someone elses poorly built model. :frowning:

12

then, definetly photoshop will be ur life salvior tonight!

and tomorrow, go after the modeler and drop him a sweet “hello”
:lol: