David Hill, Principal Mathematician at Epic Games, has worked in the animation and video game industry for 13 years with interests ranging from simulation and rendering to computational geometry. Prior to working in video games, he worked at DreamWorks Animation, where he was one of the original authors of the industry standard volumetric toolset OpenVDB. Outside of computer graphics, David held various research faculty positions at CalTech, working on problems in aeronautics and applied mathematics.