MotionBuilderUnityLive Sync
MotionBuilder Live Sync For Unity
MotionBuilder Live Sync For Unity streams motion data such as characters and props from MotionBuilder into Unity in real time.
MeshSync also provides streaming from MotionBuilder to Unity, but while MeshSync targets DCC tool synchronization, this tool is designed for real-time streaming such as mocap operations and sends only the required data, enabling low latency and high stability.
Features
Real-time sync
Sync MotionBuilder character and prop transforms into Unity in real time. Useful for real-time workflows such as VTuber and virtual production.
Use cases
- Retarget mocap data received in MotionBuilder and render it in Unity.
- Preview motions played in MotionBuilder within Unity.
Well suited for MotionBuilder retarget workflows
For mocap systems such as Vicon, OptiTrack, and mocopi, sending retargeted motion from MotionBuilder to Unity can in some cases produce better foot grounding and overall motion quality than driving the motion directly in Unity. MotionBuilder Live Sync For Unity is well suited for this kind of retarget-and-send workflow.
Characters & props supported
Sync characterized MotionBuilder Characters to Unity Humanoid Avatars, and MotionBuilder Props to Unity Objects.
Multi-destination send
Send to multiple IP addresses and ports.
Use cases
- Render on multiple Unity machines at the same time.
Low-latency streaming design
Designed for real-time streaming such as mocap operations. By sending only the required data, it delivers low latency and high stability.
Coordinate conversion
Automatically adjusts for coordinate system differences between MotionBuilder and Unity.
Upcoming Updates and Features Under Consideration
This section outlines planned updates and features that are currently under consideration.
- Support for MotionBuilder 2026 and later.
- An installer for the MotionBuilder plugin.
- Features to support redundant MotionBuilder operation.
- Features for controlling the MotionBuilder plugin from external tools.
- A controller for integrated operation across MotionBuilder and Unity.
- A feature for intentionally adding delay to motion data during real-time sync.
If you have a feature request, please contact us using the "Development / Technical Support" details listed on the Contact page .
License
The trial edition is for personal, non-commercial use only. Corporate or commercial use requires the Unlimited edition. The trial edition also limits how many characters and props can be synchronized.
See the license page for details on license types and how to purchase the Unlimited edition.
License comparison table
| Trial edition | Unlimited edition | |
|---|---|---|
| Personal use | ○ | ○ |
| Corporate use | x ※ For evaluation only | ○ |
| Commercial use | x | ○ |
| Sync characters count | 1 | Unlimited |
| Sync props count | 2 | Unlimited |
| Can add devices to scene | 1 | Unlimited |