leaking light

[sakona loeung]

Dear all, have you ever experience something unexpected like this. this is leaking the light from corner of the wall which have light on the other side. that is a huge setback for me. if you experience this too. and have solution or tip please show.
I attach the sample here.
thank in advance.

[Salvador Jimenez]

You need to post your settings. How can anyone give advice if they don't know what software and settings this was made with? Alright dear?

Now, IF you used Max + VRay and IF you use Light cache, I suggest clicking on "retrace threshold" in the LC parameters. Besides it looks like a test render; if you make a test with no shaders but high GI and AA settings and "retrace threshold" on you might see it right. Give it a go and post back.