GPU Pro 7

1. Interactive Cinematic Particles 211

for every particle every frame (e.g., size, orientation, glow amount, and illumi-

nation). Thus, the files exported from the DCC tool included only the following

information: ID, position, and color.

The particle ID was needed by the

.icecache file representation because the

particles are not always guaranteed to be listed in the same order across all frames

of the simulation clip. In the build process, those IDs are only used to identify

the particle throughout the

.icecache. The output of the build process is an

ordered list of particles for every frame. The ordering does not change across

frames; therefore, stor ...