[Download] Hdr Rendering Tutorial in vray for rhino
Asgvis offers a nice video tutorial.
This tutorial will show you how to use HDRI images (High Dynamic Range Images) to make realistic lighting.
a nurbs circle
When i import 3d file created by catia to rhino, I find:
A degree 5 circle (you can know how to create this circle by the picture below), It’s funy though less use in actual application.
making a ring with T-splines
Miguel Gasso recently uploaded a series of uncut videos to YouTube.
In those video tutorials, you can learn how to create a ring with T-splines for rhinoceros. (Be sure you have some experiance on t-splines before watching those tutorials.)
How to Render Chrome in Vray for Rhino
Tutorial from Rhinotoday.com. Don’t reproduce without permission!
Watch the Video Tutorial:
Download the 3d model.
A handle shower (3d model)
In the next few days, I will make a render video tutorial—How to render chrome in vray for rhino. 
You can download the model first (3d data from the net).