Stills from the antigrav motorbike chase from the Screen Gems motion picture ULTRAVIOLET, directed by Kurt Wimmer. I was responsible for all particle effects work on this shot, as well as detailing the background (rooftop miscellany, building touchup, cars on street).

I put together a "virtual squib" rig that, given custom Maya locators to indicate timing and position of the bullet hits, would:

- Aim the gun correctly and fire a bullet enough frames beforehand that it would hit on time.
- Fire a tracer round (with smoke trail) every fifth round
- For each bullet hit, turn on one of ten random pre-computed particle simulations, with different ones for marble, glass, and metal hits
- Create damage on the building
- Turn on a pre-computed muzzle flash element and accompanying light burst
- Emit a shell casing

Additionally, I helped with the Renderman shader for the debris, so that we could put out various AOV renders for the reflection in the building, as well as for the regular debris.


This image is COPYRIGHT 2006 SCREEN GEMS. Work was done at CIS Hollywood. I am merely putting it online to demonstrate my work on this movie.