> For the complete documentation index, see [llms.txt](https://docs.engagevr.io/developer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.engagevr.io/developer/afx/node-dictionary/reference.md). # Reference You can use a reference node to pass an object reference into a graph. All reference nodes have a similar structure. For more information about how to use reference nodes, see [References](/developer/afx/afx-graphs/references.md).

Example reference node in reference mode

### Properties
NameTypeDescription
ReferenceStringA name to use for the reference. This name is added as a property in the Inspector panel.
**Outputs:**
NameTypeDescription
Object OutVariesAn object that matches the type of the reference node.
Value OutVariesVariable reference nodes only.

The value of the referenced object.
## ENGAGE reference nodes ENGAGE reference nodes provide references to objects that are specific to the ENGAGE application. | Node | Path | Description | | ------------------------------ | ------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------- | | Grab Object Reference |

/AFX Companion/

Grab Object System/

| For more information, see [Grab Object](/developer/afx/node-dictionary/engage/afx-companion/grab-object.md). | | Network State Module Reference | / | For more information, see [Network State Modules](/developer/afx/node-dictionary/engage/networking/network-state-modules.md). | | Pose Selector Reference | / | For more information, see [Seat](/developer/afx/node-dictionary/engage/seat.md). | | Sit Trigger Reference | / | For more information, see [Seat](/developer/afx/node-dictionary/engage/seat.md). | ## Unity reference nodes Unity reference nodes provide references to standard Unity objects that are used in the ENGAGE application. | Node | Path | Description | | ---------------------------- | --------------- | -------------------------------------------------------------------------------------------------------------------- | | Animator Reference | /Animation/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/Animator.html) | | AudioReverbZone Reference | /Audio/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/AudioReverbZone.html) | | AudioSource Reference | /Audio/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/AudioSource.html) | | AimConstraint Reference | /Constraint/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/Animations.AimConstraint.html) | | LookAtConstraint Reference | /Constraint/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/Animations.LookAtConstraint.html) | | ParentConstraint Reference | /Constraint/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/Animations.ParentConstraint.html) | | PositionConstraint Reference | /Constraint/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/Animations.PositionConstraint.html) | | RotationConstraint Reference | /Constraint/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/Animations.RotationConstraint.html) | | ScaleConstraint Reference | /Constraint/ | [Unity documentation](https://docs.unity3d.com/2021.3/Documentation/ScriptReference/Animations.ScaleConstraint.html) | | ParticleSystem Reference | /FX/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/ParticleSystem.html) | | CharacterJoint Reference | /Physics/Joint/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/CharacterJoint.html) | | ConfigurableJoint Reference | /Physics/Joint/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/ConfigurableJoint.html) | | FixedJoint Reference | /Physics/Joint/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/FixedJoint.html) | | HingedJoint Reference | /Physics/Joint/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/HingeJoint.html) | | SpringJoint Reference | /Physics/Joint/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/SpringJoint.html) | | WheelCollider Reference | /Physics/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/WheelCollider.html) | | Camera Reference | /Rendering/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/Camera.html) | | Light Reference | /Rendering/ | [Unity documentation](https://docs.unity3d.com/ScriptReference/Light.html) | | Render Reference | /Rendering/ | | | TextMeshPro Text Reference | /UI/ | [Unity documentation](https://docs.unity3d.com/Manual/com.unity.textmeshpro.html) | | Behaviour Reference | / | [Unity documentation](https://docs.unity3d.com/ScriptReference/Behaviour.html) | | Collider Reference | / | [Unity documentation](https://docs.unity3d.com/ScriptReference/Collider.html) | | GameObject Reference | / | [Unity documentation](https://docs.unity3d.com/ScriptReference/GameObject.html) | | Object Reference | / | [Unity documentation](https://docs.unity3d.com/Manual/class-Object.html) | | Rigidbody Reference | / | [Unity documentation](https://docs.unity3d.com/ScriptReference/Rigidbody.html) | | Transform Reference | / | [Unity documentation](https://docs.unity3d.com/ScriptReference/Transform.html) | | UnityEvent Reference | / | [Unity documentation](https://docs.unity3d.com/ScriptReference/Events.UnityEvent.html) | ## Variable reference nodes Variable reference nodes provide references to standard variable types. | Node | Path | Description | | ---------------------------------- | ------ | ---------------------------------------------------------------------------------------------------------------------------- | | List Bool Reference | /List/ | Reference to a list of Boolean objects | | List Float Reference | /List/ | Reference to a list of float objects | | List GameObject Reference | /List/ | Reference to a list of game objects | | List Int Reference | /List/ | Reference to a list of integer objects | | List Material Reference | /List/ | Reference to a list of material objects | | List Object Reference | /List/ | Reference to a list of objects | | List String Reference | /List/ | Reference to a list of string objects | | AnimationCurve Component Reference | / | Reference to an Animation Curve component. For more information, see [Animation curves](/developer/afx/animation-curves.md). | | Bool Component Reference | / | Reference to a Boolean component | | Float Component Reference | / | Reference to a float component | | Int Component Reference | / | Reference to an integer component | | Quaternion Component Reference | / | Reference to a Quaternion rotation component | | String Component Reference | / | Reference to a string component | | Text Component Reference | / | Reference to a Text component | | Vector3 Component Reference | / | Reference to a Vector3 component | --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. 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