Link a prop and a video camera

Shogun Live lets you link a calibrated SDI or Vicon Vue video reference camera to a rigid tracking object. This enables the video camera to be tracked, providing real-time 3D overlay in Shogun Live while the camera is moving and enabling the animation to be captured to the MCP.

To link a calibrated video camera and a rigid tracking object:

1. Create the object (normally a tracking crown or set of markers attached to the camera) in the usual way:
   1. In the 3D Scene, select the relevant markers.
   2. In the Tracking panel, with the Setup tab selected, go to the Prop field, enter a name for the object and select Create.
   3. If you want to use the object tracker (see Understand object tracking in Shogun Live), on the Properties tab, ensure Track with ObjectTracker is selected.
2. At the top of the Tracking panel, ensure the object is selected.
3. In either the Workspace view pane or the System tree, Ctrl-click to select a calibrated video camera.
4. In the Tracking panel, on the Setup tab, select Link Camera.

   

   The button text changes to display identifying information for the linked camera and the bone for the prop moves to the video camera's optical center, aligned with the video camera's coordinate system.You can now move the camera while maintaining the 3D overlay, and you can see the camera moving in the 3D Scene and Cameras views.

To detach a video camera and rigid tracking object:

1. At the top of the Tracking panel, select the prop that you want to unlink from the video camera.
2. On the Setup tab, to the right of the Link Camera button, select Unlink.
   The prop and camera are unlinked, and no longer move together. The prop origin remains at the video camera optical center, and the video camera remains in its last position.

If you recalibrate the linked video camera, for example, following a zoom lens or tracking crown location change, the linked prop is also automatically updated so that the correct calibrated nodal point is maintained.

After you have captured a scene with linked video cameras, you can load the MCP into Shogun Post. The linked video cameras display the same animation in Post, with a key per frame for translation and rotation.