Really strange "BUG"

[wim.mutsaers]

I am not sure if this is a bug, but it is weird. As you can see in the image I have this double wood plank, and there is glass between.

When I do a region render for test the result is what I expected(correct) , but when doing full renders or batch render the wood plank behind the glass it has a strange look as you can see in the image. I am using interpolation in the wood planks material and also I have "affect all channels" in the glass material.

Is it a bug? or am I doing something wrong?




Tnks in advance for help.

[bazuka]

plz upload the full image size

[wim.mutsaers]

The issue is related to a specific object in front. When I remove that object from the scene or translate it enough, the problem stops.

Also if I assign a non-reflective material to that object the problem is solved.

This is really weird.

[t.petrov]

What version of Maya and V-Ray?
Can you post a scene demonstrating the problem?