Calibrate syncing

Depending on your tracking and video pipeline, you can end up with delayed video or tracking data. To avoid CG elements sliding when the camera is panned, tilted or zoomed, we need to synchronize video and tracking data.

Configure frame matching method

Select the frame matching method supported by your system - see available frame matching methods below
For Timecode method
1. Choose your primary timecode source
2. Check for incoming timecode

Learn more about how to Configure timecode (LTC)

Available frame matching methods

Method

Buffer size
(no frame matching)

This ensures a stable buffer size by deleting overflow, and by duplicating packets when the buffer size is too low.

Requires manual syncing
Will cause stuttering when tracking data is unstable

Timecode

This method uses a timecode source to auto lock video and tracking data.

Tracking data with embedded timecode is currently supported by the following tracking systems:

EZtrack
Ncam
SMT
Stype Red Spy
TrackMen
Technocrane
UX v2

The "Primary" timecode source in the machine header is used for auto locking.

Arrival Timestamp

This method is similar to Buffer size, but uses the video and tracking arrival timestamps to handle errors.

Calibrate syncing between video and tracking

Pan the physical camera quickly and stop abruptly
Check to see whether the previously placed calibration cone slips temporarily from the marked point
- Use the -/+ buttons or the input field to change the delay

If the graphic moves first

If the camera feed moves first

Subtract video delay for the camera

If that is not possible, then add tracking delay

Add video delay for the camera

If that is not possible, then subtract tracking delay

Use the filters on the top of the page to focus on the areas you are working on.

Available delays

Delay	Type
Video delay	Input	Delays the video feed/Increases the video buffer size
Tracking delay	Input	Delays the tracking feed/Increases the tracking buffer size Supports separate control of the Transform and Lens delay Supports decreasing the default buffer size* Supports subframe delay
AR set extension	Input	Delays the graphics independently while keeping graphics and tracking and locked*
Engine API	Input	Delays any API call to the engine*
Video delay	Output	Delays the video feed/Increases the video buffer size Supports decreasing the default buffer size*
Audio delay	Output	Delays the audio feed/Increases the audio buffer size