So today is the day I finally created displacement map in ZBrush and successfully rendered in Maya. This was a test only, so I used very basic model in Maya contains 120 faces or 240 triangles here how it looks.

This is same model in ZBrush divided into almost 500000 polygons and modified to create some cracks and heights.

And here is final result rendered in few seconds in Maya using Mental-Ray rendering engine, not counting ~1h of doing all this . It could look nicer with more tweaking but I wanted to see it works.

Now moving on to creating something more interesting and fun.

Here is guide on how to do it: link.