This is an experimental image on simulating lighting conditions based on a HDRI. The quality of the image is pretty low coz I used low sampling rates, since I wanted to see the results quickly But still this took abt 45 minutes to render.
This is another experimental image 
this is not illuminated using a HDRI
ZBrush??? hmmmmmmmm…nice.
I’d like to hear how you simulated High Dynamic Range Radiance Imaging (HDRI) within Z. What were your thoughts, steps to achieve the watch for example. The metal is wonderful.
I’ve seen HDRI with BMRT, and for the Fiat Lux animation (Which is SO FREAKEN COOL).
I know Xmen had a couple scenes done using Houdini.
I’m rambling, but jealous! The ZBrush typography looks like it’s been in that position for hundreds of years. 
And for any lurkers who like science and considering radiance maps, you can bend your noodle at this address:
http://www.optics.arizona.edu/Palmer/rpfaq/rpfaq.htm
Nice work sTINg
Here is another image illuminted using a HDR image and rendered with a better sampling rate.
Key Kathy, Glad U liked those images. I tried to simulate a lighting condition as from a HDR image in ZBrush…I will post the resulting image in the “Zbrush Forum” section.
I too watched the animations done by Paul Debevec (Rendering with Natural Light and Fiat Lux) they were really kewl…
If anyone wants to know more about High Dynamic Range Radiance Imaging please visit the following links…
http://www.debevec.org - Paul Debevec
http://www.rendermania.com/HDRI/index.shtml - Simon Bunker
http://www.trinisica.com/sub_learn_typedissue.asp?lv=3&mode=1&issue=002 - johan
I have no idea what u guys and gals are talking aboot’ but you’re images look really, really good, By the way sorry about the unwarned exit from the southerns chat room, when i switched to full screen mode, i had two screens open, so i closed the one it thought I didn’t need and it closed both 
by the time i went through all of the motions of getting back in u were gone. sorry
Interesting thread, I want to know more.
G