#Ipi mocap studio re order camera full#
Setting up the cameras and calibrating the recording volume was pretty straightforward, albeit quite lengthy and full of frustrating issues related to both the software and the gear (especially considering that each camera would have to be connected to a full-speed USB port, not a hub/splitter, preferably - 2 cameras maximum per USB controller with a quality USB-cable with minimal power loss, good shielding e.t.c, e.t.c.) It looked promising and I ended up purchasing several PS Eye cameras (as recommended by iPi devs), tripods, cables to try and capture a clip. Considering that Optitrack cameras and rigs were ( to put it mildly) not very affordable for an amateur, I turned to the iPi Soft Motion Capture software suite which could utilize consumer-grade cameras to do just that, and capture motion without markers (believe it or not). Initially I was actually planning to go the "optical way". Which is why large studios build huge rigs and use top-quality 4K-cameras to capture markers in larger volumes: Obviously, optical MoCap system recording volume can be quite limited: The more cameras – the better, since as you can guess, body parts can shadow each other, this can make markers invisible to several (if not all) cameras, which in turn means no data. Note how the actor is surrounded by cameras. Here's the simplest set-up one would need to capture motion using an optical MoCap system:ĬG Volume visualization from the OptiTrack website Guys at OT aim at providing the most affordable optical MoCap cameras and gear. If not, here's an excellent article at Engadget to get you up to speed.Īmong optical MoCap solutions OptiTrack is arguably one of the better known ones. Pretty sure you're familiar with those "classic" motion capture markers used by cameras and specialized software to track each marker's spacial data for transferring calculated translation onto 3D objects or skeletons. It's something I had to study before investing into the full inertial Neuron MoCap kit to make sure I'd get the most bang for buck when recording action sources for the film. Hence today I'll mostly talk nonsense about the differences between optical and inertial motion capture systems and what pros and cons the latter can have in comparison with traditional optical systems like Optitrack. Or not, since it's getting more and more difficult to find time for logging. The video of the process is still in progress and I will probably be able to post it after finalizing the 4-th and final redaction of the previz. Well, the first motion capture session is over and I finally managed to find time to write a post about this exciting experience.
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