The spray paint was animated using VIFX proprietary particle system. I
wrote the c-shell script to generate the RIB files. The
displacement map for the wall was done by Edie Paul. I wrote the
RenderMan(tm) shader to reveal the graffiti as the paint hit the wall,
as well as the shader to flake it off. The electrical current animation
was drawn by Peter Crossman, I colorized it and composited it into the scene.