Hi,
Please take a look at this picture :
In this scene, there are 7 grid which transparency are all set to 1 (they are fully transparent).
I added a volume fog to the pass, and then, the grids will show up in the render. But they should NOT appear, as they are fully transparent.
Anyone knows the answer to this mystery?
My render region raytracing depth settings are :
reflection = 0
refraction = 7
max ray depth = 7
Any help would be apreciated. Thanks.
gs