Hello everyone,
Time for the lighter/compositer to chime in. This piece was great to work on, and i’m glad that there has been such a great response. It’s great to be able to work with such talented team-mates.
Jason,
I wanted to respond to your query as well. As far as what I would have done differently… quite alot comes down to time and not enough of it.
On the lighting/rendering side, I had spent some time building in a gobo setup to mimic the shadows cast by the trees on the left side. The rhino passes throught them at times and although I got the system working, in comp most people thought they were render errors… so I would have liked to flesh that out more. Rendering went easily enough, although I still am not familiar enough with Renderman to output all my passes as AOV’s. I had to do separate renders for each pass, which took valuable time. I know its possible and since I was using Nuke, which has the ability to read multi-channel exrs, the AOV pipeline would work well together.
On comping, the footage was really bad, but workable. Using a better format would have helped getting some good keys for color correcting. On the sky replacement I would have liked to have worked out a way to add a spherical background element using Nukes 3D pipeline. In intial tests, we worked out how to get camera track data from Maya to Houdini to Nuke, but time hindered us putting it into action. A more enticing sky would have added some. I’ve also reworked this piece beyond what you see here a bit. Warming up the colors, adding more contrast and grain. It has the same feel, but a bit more polished.
Hope that helps,
I’d certainly like to hear more about your evaulation practices 
William Atkin
Digital Effects Artist
www.william-atkin.com