Ascension Plug-ins for MotionBuilder

Autodesk MotionBuilder is a powerful character animation and motion editing tool. The video tutorials in this article will teach you how to use the Ascension MotionSTAR and trakSTAR plug-ins to stream data from a live actor into Motionbuilder.
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Polhemus Plug-in for Motionbuilder

Autodesk MotionBuilder is a powerful character animation and motion editing tool. Use the Polhemus Liberty or Patriot to stream data from a live actor into MotionBuilder. This video tutorial will teach you how to map the tracking data being streamed by your Polhemus device onto a MotionBuilder actor, and then animate the actor. Also included is a video showing a user with Polhemus Liberty sensors animating a character in Vizard.

Key steps covered in this tutorial are:

  • Adding the Polhemus device in Motionbuilder to bring in tracking data.
  • Adding a standing or seated actor to the scene. The following link will provide you with a fbx file of a  seated actor.
  • Translating the Polhemus root to match any offset of the Polhemus Transmitter from the ground.
  • Recording the user T-pose.
  • Scaling, translating, and rotating the actor to match the Polhemus markers.
  • Adding a fake hip marker. This is necessary if you are not going to have a sensor on the hip.
  • Creating a marker set to link the markers to the actor's body parts.
  • Real-time animating the actor

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MotionBuilder actor using PPT

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Autodesk MotionBuilder is a powerful character animation and motion editing tool. WorldViz Precision Position Tracker (PPT) can be used to stream data from a live actor into MotionBuilder. This video tutorial will teach you how to map the optical data being streamed by PPT onto a MotionBuilder actor.

Key-points covered in this video are:

  • Loading PPT mocap plug-in
  • Adding live marker data to scene
  • Inserting & transforming an actor
  • Previewing live actor within MotionBuilder

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MotionBuilder Live Characters (Vizard)

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Autodesk MotionBuilder is a powerful character animation and motion editing tool. Live Characters is a connector product to Vizard that allows real-time stream of live actors into Vizard environments. This video tutorial will teach you how to retarget motion data from an animated actor to a character and then stream that data to Vizard.

Key-points covered in this video are:

  • Enabling WorldViz Live Characters within MotionBuilder
  • Optimizing character based on actor data
  • Configuring live stream device into Vizard
  • Sample Vizard script demonstrating how to add Live Characters

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