Hello every body, I am trying to use Light Cache in Vray 1.47, but I have some light bug in my render, can you help me.
Thank’s :lol:
maybe the problems with the Lc is the real white…The material is 255 of white?..try to down this white to 220…
What was your election for the secondary bounds?
Yes it’s true that I have a real white (255) I will try to change this and send u the result,
for the render I choose Irradiance map for the first bounces and Lc for the Secondary. 
thank you pdvista
The left part you refer to is simply GI light bouncing around. That is one of the lightest spots in your room, it’s normal that it’s a bit blown out. Lowering your white is a good idea in general (240 or 245 is already enough, 220 will be pretty dark already).
I would give that block a lower send GI value (vray properties). That will bounce off less light, clearing up that bright spot.
The right part of your problem could be due to big lightcache samples. What are your settings for LC and IR?
I fixed the problem by changing my white (I put 240). It seems that the pb don’t appear with quasi-monte carlo.
here is my last render
and my LC settings:
Subdivs : 1200
Sample size : 0.01
Scale Screen
Number of passes: 4
Filter: nearest
Have you got a vray light on, with No Decay ?
Hi her is my last update
and my vray light parameters
tkx