Mocap Studio release notes

Release notes for AR 51 Mocap Studio, the Windows and Linux desktop client. Newest release first. (Mocap Studio is the client; the capture server is Mocap Unleashed.)

3.0.2.35R

2025-12-01 · Windows & Linux · since 2.3.1.26R

This is a major release. Mocap Studio moves from the 2.3 line to 3.0, adding markerless full-body solving, a new .gr51 capture workflow, richer camera tools, and Linux support alongside Windows.

New

• Full-body character solving. Live capture now drives a complete humanoid rig — spine, neck, clavicles, arms, and legs — for natural, stable motion out of the box.
• Open and export .gr51 captures. Double-click a .gr51 file, drag it onto the window, or pass it on the command line to load a capture instantly; imported captures are solved automatically and can be re-exported.
• Export to FBX, CSV, and GR51. Send takes straight to your DCC or analysis tool, with progress shown throughout the export.
• Biomechanics angles in CSV export. Joint-angle data is now included in CSV output for movement and clinical analysis.
• Per-person identity. Assign and display an entity ID or character name per tracked person, so subjects stay clearly labelled across a session.
• Camera panel search and undistort toggle. Quickly find a camera in large rigs and switch lens-distortion correction on or off directly on the feed.
• Phone cameras as capture sources. Android and Pico phone cameras can be used as capture devices.
• Server health at a glance. A new status panel shows whether the capture server is alive and lets you restart it without leaving the app.
• Linux support. Mocap Studio now ships as a native Linux build in addition to Windows.

Improved

• Smoother, more responsive exports. FBX and other exports report clear progress and no longer freeze the interface on large takes.
• Camera calibration and auto-tune. A guided auto-tune workflow with live progress makes dialing in cameras faster, and the calibration menu now shows full device names.
• Camera feed accuracy. Video overlays stay aligned with the 3D view as cameras move, and distortion correction is more faithful to each lens.
• Character setup that sticks. Character-to-subject mappings are saved to disk and validated, with clear on-screen feedback when something needs attention.
• Clearer scene readability. Person labels hide automatically when a person is hidden, and skeletons in an A-pose are colour-coded so setup state is obvious.
• Accessibility. Added colour-vision-deficiency simulation to help verify that the interface is readable for all users.

Fixed

• Capture no longer stalls when a camera drops offline mid-session.
• Corrected CSV export frame counts and improved consistency of exported data.
• Fixed video-overlay misalignment so animated cameras track the footage correctly.
• Resolved incorrect foot placement caused by faulty capture-bounds and foot-region calculations.
• Fixed finger mapping on humanoid characters.
• Corrected the camera-feed video path on Linux so live feeds display reliably.
• Numerous stability fixes to reduce crashes and unexpected hangs during long sessions.

Known issues

• Requires a compatible Mocap Unleashed capture server; older 2.3-era servers are not supported by this release.
• On Linux, launch Mocap Studio from the installed application entry so .gr51 file association and camera device access are set up correctly.