The Pollack PR Marketing Group recently conducted an in-house production for Bingo Blitz’s in-game animation series with Sprinkles Cupcakes’ founder, Candace Nelson. Designed as a time-limited in-game feature, the in-app feature portrays Candace’s journey with Bingo Blitz’s animated character “Blitzy,” as they travel around Europe in a food truck.
To incorporate Candace alongside Blitzy and the game’s animation, the team used a technique called “chroma keying,” where one shoots in front of a green backdrop and superimposes the footage on top of a different background in post-production. Working with a green screen allows for more creative freedom and flexibility, but it also requires more attention to details during set up and the actual shooting process. Here are a few tips for those wanting to try out or refine their green screen capabilities.
Since Blitzy and Candace’s entire journey is animated in post-production, there needed to be a way for Candace to interact on-screen with Blitzy. Proper eye contact and movement extensions had to be simulated.
A big way to help produce the correct positioning is to use real-life stand-ins that will be edited out in production. For example, the production team had someone stand exactly where an animated Blitzy would be in the scene. This allowed Candace to know where to direct her motions and ensure her eyes were directed at the right level of where Blitzy would be inserted in post-production.
Pay attention to every color
Green is often used in chroma keying because green is very different from skin tones, preventing computers from accidentally confusing an actor’s arms or hair with the background, which would later need to be removed from a scene. However, this also meant every prop could not be green or clear (which would reflect light or show through as green). As an example, in a scene with Candace drinking from a beer stein, used a mug made of wood was used rather than glass.
Plan your lighting
Although filming does not take place in a real environment, one needs to think about how lighting will affect the person on camera and create a scenario as though that environment was real. For example, a few scenes had Candace inside her food truck, facing away from the windshield. Since most sunlight comes through the front windshield of an actual food truck, the production team added extra light to the back of Candace’s hair. Thanks to this, the effect will look more natural and eye-pleasing once she’s inserted into the virtual, animated food truck.
For every scene, lighting equipment was placed at designated locations to evenly distribute color shade and tone on camera, such as placing multiple lights behind Candace to prevent shadows. This helps computers in post-production easily select which background to remove.
Hair, and other details, require great attention
While an actor’s flyaway hair is never wanted, it can be especially tricky to “key out” in post-production. The same goes for loose threads on clothing. Throughout the filming, a makeup/hair artist was always on hand to prevent any minor filming issues from turning into major post-production hassles.