Visual Scripting Node Reference

This package includes a set of custom visual scripting nodes designed to help you use AR Foundation in visual scripting projects.

AR Foundation custom nodes shown in the fuzzy finder

Get trackables

A trackable is a special component that represents anything that can be detected and tracked in the real world. Planes, point clouds, anchors, environment probes, faces, body, images, and 3D objects are all examples of objects with corresponding trackable components. You can get all trackables of each type using the nodes below.

These nodes appear in the fuzzy finder in the AR Foundation category:

Node	Input manager type	Output trackable type
Get Planes	ARPlaneManager	ARPlane
Get Tracked Images	ARTrackedImageManager	ARTrackedImage
Get Tracked Objects	ARTrackedObjectManager	ARTrackedObject
Get Faces	ARFaceManager	ARFace
Get Human Bodies	ARHumanBodyManager	ARHumanBody
Get Point Clouds	ARPointCloudManager	ARPointCloud
Get Raycasts	ARRaycastManager	ARRaycast
Get Anchors	ARAnchorManager	ARAnchor
Get Environment Probes	AREnvironmentProbeManager	AREnvironmentProbe
Get Participants	ARParticipantManager	ARParticipant

On trackables changed

A trackable's life cycle has three phases: added, updated, and removed. Each frame, managers trigger an event that includes all trackables that have been added, updated, or removed in the current frame. You can subscribe to these events using the nodes below.

These nodes appear in the fuzzy finder in the Events > AR Foundation category:

Node	Input manager type	Trackables-changed event
On Planes Changed	ARPlaneManager	planesChanged
On Tracked Images Changed	ARTrackedImageManager	trackedImagesChanged
On Tracked Objects Changed	ARTrackedObjectManager	trackedObjectsChanged
On Faces Changed	ARFaceManager	facesChanged
On Human Bodies Changed	ARHumanBodyManager	humanBodiesChanged
On Point Clouds Changed	ARPointCloudManager	pointCloudChanged
On Anchors Changed	ARAnchorManager	anchorsChanged
On Environment Probes Changed	AREnvironmentProbeManager	environmentProbesChanged
On Participants Changed	ARParticipantManager	participantsChanged

Note

If you wish to receive update events from a single AR Face component, ignoring the added, updated, and removed events from other faces, you can use the On Face Updated node.

Other events

These nodes appear in the fuzzy finder in the Events > AR Foundation category:

Node	Description
On Session State Changed	Triggers whenever the AR session state changes.
On Camera Frame Received	Triggers every frame when Unity receives a new image from the device camera.