Vray Render - White bleeding in shadows

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Old 09 September 2013   #1
Unhappy Vray Render - White bleeding in shadows

Hi guys,
I have a problem with my render, can't get it right. Some white shadows shows where is supposed to be real shadow, almost like a reflection. I tried different settings for vray very high and low, nothing changes.

Thank you!


 
Old 09 September 2013   #2
I believe these are called "light leaks". If I'm not mistaken you should make sure the corners of the room are absolutely sealed, preferably the walls should intersect so you're sure, and having them being made by boxes (so they have thickness) also does the trick I think.. Look below for intersection:

+--------------
|
|
|
|

instead of:

┌--------------
|
|
|
|
 
Old 09 September 2013   #3
Here is how the walls are built. Usualy I extrude them from a plane, first time when i get this light leaks
 
Old 09 September 2013   #4
Thats because of GI

That happend with the irridiance map i guess. you should play around with the samples. that happend to me once. tell me if it worked.
 
Old 09 September 2013   #5
Yes it helped, I did play a bit with IR map settings and theres the result (don't mind the yellow color, its just for test

 
Old 09 September 2013   #6
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