One of the greatest things in the universe is the Persistence of Vision ray tracer, a freely-downloadable 3D rendering program. Since the renderer is entirely script-driven, it has a steep learning curve for its use, but it is capable of producing great results.
Using this excellent tool, I have developed a series of characters—mostly robots—who have their existence in a virtual realm known as the Petrified Orchard Valley. So far the adventures of these characters are chronicled in the Internet Ray-Tracing Contest, although if my free time allows I might start doing other stuff as well.

The Petrified Orchard Valley is parched dry. There may be places nearby with live trees, but I'm not aware of any. On the good side, the sky is always blue, although there is also some fog in the distance. The trees in the valley were petrified so long ago that nobody remembers. The ground is flat, until you reach the hills that nobody noticed until just recently.

You'll be able to guy gas here when I'm finished building the place. The building's up, now, so it should be soon.
The famous Rusty. He made his first appearance in the October 1998 round of the IRTC, and has been a part of all but two entries I've made since that time. Rusty works in the POV Phytogenetic Research Laboratory, and likes to paint and play chess in his spare time.
Rosie was once Rusty's significant other. She had a small appearance in the October 1999 IRTC round, and a couple more appearances since then. She presides over the Petrified Orchard Valley Traffic Court, and moonlights in a night club. In her spare time she likes to make animations on her Freundin 5000 computer.
Boxer was introduced in the April 1999 round, and has appeared in three rounds since then. I have no idea what Boxer does for a living, but he is active in the laser rights movement and is one of Rusty's regular chess-playing buddies.
TC made his first appearance in the January 2000 IRTC. He works with Rusty in the POV Phytogenetic Research Laboratory, and is another of Rusty's regular chess buddies.
The Greb are idol-worshippers from the 777th dimension whose routine habit is to sacrifice all interlopers to their foul god, which you can see in the background of this image. Rusty and Boxer first encountered them in the April 1999 round of the IRTC.
I'm no longer doing Greb-based stories in Rusty animations. The Greb are now the bad guys in a new set of stories.
Domo first appeared to the world in my January 2001 IRTC entry, mainly so that there could be three robots to meet Rusty as he rolls up to the Petrified Orchard Valley chapter of the NLA.
Another robot of the Rusty design, she appears, with Domo, in the January 2001 entry, meeting Rusty as he first arrives at the NLA meeting house.
Joe was designed for my July 2001 IRTC entry. Although there are sixteen little doors from which arms can protrude, only three of the arms were designed as of the time of the contest. I might add more. Since he was encountered in a dream, I'm entitled to change things to suit me.