Inertial (Cameraless): Motion sensor suit It captures the scene from every angle, reducing the need for retakes. However, the end result takes more time and includes more errors than other methods, meaning that a lot of data cleanup is needed in post-production. This type of motion capture is useful for large-scale productions that have post-production budgets. Instead, the acting area is covered by a grid on the floor and a network of cameras that shoot the scene from every possible angle. The recorded footage is analyzed by software and translated into motion data that animation software can read. Video (Markerless): A sophisticated camera stage is usedĪctors do not use suit markers of any kind. This isn’t used often anymore as the actors also need to carry some kind of charger or battery case, and the LED light can potentially spill into other filmed elements. Light-emitting LED markets are placed on actors the same way as optical-passive tracking, and special cameras record their movement. Optical-Active: LED suit markers & cameras However, it can be resource-hungry and isn’t suitable to run on entry-level systems. Historically, this was the most common way of doing motion capture. Large studios commonly use this type as it's the most accurate, yielding the impressive photorealistic tracking required for feature films. Retroreflective markers are placed on actors via a tight-fitting suit and tracked via infrared cameras. Optical-Passive: Retroreflective suit markers & infrared cameras What to consider when starting a motion capture project?įirst, you need to be aware of the four main types of motion capture, what they mean, and how to choose one that best fits your project needs.
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