KRAKATOA is Prime Focus production-proven Volumetric Particle Rendering, Manipulation and Management Toolkit. It provides a pipeline for acquiring, caching, deforming, shading and rendering vast quantities of particles at unprecedented speed to represent natural phenomena like dust, smoke, silt, ocean surface foam, plasma and even solid objects. Krakatoa integrates well with Particle Flow, the flexible 3ds Max built-in Event-Driven Particle System, and provides data exchange capabilities for sharing particles with other 3D and simulation applications. The rendering features include support for shading and texturing using standard 3ds Max maps and materials; Motion Blur and Depth Of Field effects; Particle Self-Shadowing and Shadow Casting from and onto matte objects; Ambient Participating Medium Extinction to simulate atmospheric and underwater light and color behavior and more.