Walt Disney Animation - A Programmable System for Artistic Volumetric Rendering

We present a method for generating art-directable volumetric effects, ranging from physically-accurate to non-physical results. Our system mimics the way experienced artists think about volumetric effects by using an intuitive lighting primitive, and decoupling the modeling and shading of this primitive. We integrate our approach into a real-world production pipeline and couple our volumetric effects to surface shading.