Segmented Control of A Closeup Chemical Reaction Effect

Abstract

A key “Spies in Disguise” plot point was when Walter, a spy agency technician creates a potion that can transform humans into pigeons. The Effects Department was tasked with creating two distinct chemical reaction looks: “Success”– a pleasant foam-based effect used for when Walter creates the formula, and “Failure” – a disgusting, slimy effect showing Walter’s failed attempt at synthesizing an antidote. Because the effect is so close to the camera, director notes on the performance of each hero element were very specific and evolving over time. To achieve the directors’ vision, we developed new ways to segment the many procedural and simulated elements into smaller problem domains and combined procedural, simulation and rendering/compositing techniques for maximum flexibility.