Marker visualization reference

The following information includes an overview of the various marker visualization settings and features.

Vicon Marker Visualizer Component

You can add this component to any actor. It contains custom options for controlling the visualization of streamed marker data.

The Vicon Marker Visualizer Component respects the standard rendering options Visible and Hidden In Game for visibility control.

This table outlines the available settings and their usage.

Setting	Description
Marker Type	Choose how markers are displayed. The two options are as follows: Sphere: Each marker is rendered as a 3D spherical mesh in world space. Crosshair (Overlay): Each marker is rendered as a 2D crosshair on top of the scene. These crosshairs are not occluded by any objects in the scene and have a fixed size visually. Note: Crosshair rendering respects the view flag On Screen Debug. For more information on the different view flags, see the Unreal documentation.
Marker Color	Set the color of the marker visualization.
Marker Size	Set the size of the rendered markers.
Subject Name	Select the subject on which the markers are displayed.
Show Marker in Editor	Enable this option to display rendered markers in the Viewport without needing to enter a play mode.

This section details the two blueprint functions for marker visualization along with the inputs and outputs of each node.

Inputs			Outputs
Basic Data	Reference to Live Link Basic Blueprint Data Structure	Enter a reference to the contained marker information.	Translation	Vector	Reference to an FVector that will store the retrieved marker translation. If the specified marker is not found or there is an error, the translation is set to (0,0,0).
Marker Name	String	Enter the name of the marker to find.	Return Value	Boolean	True if the marker translation were successfully retrieved, false if not.

Inputs			Outputs
Basic Data	Reference to Live Link Basic Blueprint Data Structure	Enter a reference to the contained marker information.	Translations	Array of Vectors	Reference to an array of FVectors that will store the retrieved subject's marker translation.
			Return Value	Boolean	True if the marker translations were successfully retrieved, false if not.