Gamasutra: One hallmark of the Prototype universe is over-the-top open-world mayhem. We rely heavily on large amounts of particle effects to create chaos, filling the environment with fire, blood, explosions, and weapon impact effects.
Sgt. James Heller (the main character) can go just about anywhere in the environment. He can run up the side of a building, glide across rooftops, or even fly across the city in a hijacked helicopter. Because of this we need an effects system that scales to support the hundreds of complex effects and thousands of particles that could be visible at any one time.