Hi,
Can’t find why I have this probleme need help please!!! 
In my scene as soon that I have geometrie that intersect my
walls I got a light leak!! Is this new to SP3??? Never got this before… 
Walls are not a single poly, It’s 8inches wall.
More then that is when it’s fully textured the leak is more visible then with only a single color.
Look a the pictures in attachement.
No VRay sun everything lighted with a VRay light and environment.
Any help will be appreciated.
Regards,
Hummm I don’t have this with LC/QMC…
Loosing it with lightcache sample size of 0.002 !
Any explaination why I never got this problem before?
Regards
If you don’t have it with brute force/lc - then it is irrmap fault. If it is still there - it is lc makes that. Simple 
We have the same issues here, intersecting objects creates light leak … with irradiance map and light Cache.
We use 1.5sp3 on 2009 64bits
Regards,
Tanguy
Vlado I think that this is the same problem that Kronos have in the plane that we sent you?
We have done many many interior before and never got this before… Very bad…
Regards,
Light Leak
Do your walls have a thickness or are they just planes?
+1 I agree
8 inches for interior part and 4 inches for the brick…
It really seams to be the case here!
To be honest i think your Vray settings are a little Whack … i suggest resetting vray and starting again, its not a SP3 issue something like that would have been noticed a long time ago.
Try these settings and see how you go, if you still have problem email me the scene, nathan@rendertime.co.uk
have a look ..
I think what you are seeing there is poor quality Light bounce ..
I don’t think its that offensive … its just a bum head .. it depends on how you persieve it ! .. you guys just have a dirty mind ..
Ok thanks,
I will try to post the file tomorrow or when Im at the office.
Regards,
Try those settings first .. 
I’ve noticed some more light leaks as well with my settings - and they have worked well in the past since pre 1.5. I thought it was just my imagination at first but I’m starting to wonder a little.
Lightleaks:
- i actually have them quite often and i would say most of the time its the problem of IRR map badly set…depends how far the bounces have to travel.
- also , i would suggest, if you work in meters scale…to set suns shadow bias to 1 mm…or at least check you dont have it on the defauls 0.2m
Now regarding the AVATAR:
those avatar comments remind me of that tv reporters bollocks about Mass Effect being PORN…
…nice avatar, i like it, dont find it offensive at all…it actually quite deeper if you think about it…
what i find much worse, in fact, that you guys (RERender and Glorybound) can say that “something has to go” …you could have said that more politely in my opinion if you dont like it…but thats just my point of view
regards
also check that you have all the vertices properly welded on those intersecting objects (if they r solid as you say)
Ok guys… If someone can look at it I’m posting a link the the Max scene.
I also got it in 2 other projects today… Strange to have it more and more…
http://www.urbanimmersive.com/upload/Light\_Leak\_Scene.zip
Regards,
Hi
I have it often too even with high irrad map settings and with walls with proper thickness too.
I use often to import by autocad.I’ll download the file u linked
Anyway often i solved with checking the sample visibility.
Often at the start using vray problems was caused:
- a wrong units/scale (better to use mm for interiors);
- too low or too blurred GI high interpolation settings in IRRAD MAP;
- low secondary GI settings if u use LC better often is bettter to use not store direct light in LC options;
- use vray light at windows with the skylight portal option to have more precise GI (with lower GI settings too respect only environment light);
not more come into my mind at the moment
Hope it helps
