（2）Pre - recorded data processing

1. Load the pre - recorded data with reference videos.
2. Click on the split screen, select the 3D view and the reference video window, then click on Settings, select Smart Settings, and enable the Markerless function.

3. Click "Solve", wait a moment, and the 3D view will reconstruct the white dots of the human body.

4. If the human body asset is checked, the human body template will be calculated.