Thanks for your sharing. But I'm not familiar with VRayZDepth parameters, is there any good tutorial for this parameter?
This article can help you more about the actual settings.
It's really as simple as setting 2 values (near & far) to modulate the black to white ration depending on distance.
Thanks Ronen for the tutorial... glad you put it on your own web. I like the color saturation that makes the image very rich.
Btw can i link this from my website?