This section will guide you on operating the Actions by navigating and then animating a Property/Function.

Before you begin:

  • Activate the Nodegraph/Actions module

  • Click on the ACTIONS button on the bottom-right corner

To create a new action:

  • Click on the ➕ icon or NEW ACTION button to reach the Actions UI.

Navigating

RealityHub offers various methods to help you quickly navigate inside the Actions:

  • Adding a Property to Timeline: To add a Property to the Timeline:

    • Select a node

    • Go to the Properties panel, and find a property you want to animate/trigger.

    • Left-click over the Node Property Menu circle and select the Timeline

  • Expanding and Contracting Time Ruler: Scrolling up or down on your mouse wheel over the Time Ruler contracts or expand it.

  • Adding Keyframe: Left-clicking on the Node Property Menu circle inside the Timeline adds a keyframe to your Property/Function.

  • Get Value: Reads the current value of the property from the Engine.

  • Removing Property: Left-click on a Property or a Function inside the Action panel and select the Remove option deletes it.

  • Action Timeline Reset: ⏪ This button resets the position of Action Timeline to frame zero.

  • Playing: ▶ Plays your action.

Animating a Property

RealityHub’s approach to animating is unique and is easy to understand. This section will be animating a USERTRACK node’s USERTRANSFORM property.

Add the following nodes to your Nodegraph View:

  • CAMERA node from the UE Camera Node Class

  • USERTRACK node from the Tracking Node Class

Make the following connections:

  • ENGINE CONTROL node’s DISPLAY input pin to CAMERA node’s OUTPUT pin

  • CAMERA 0 node’s TRACK input pin to USERTRACK 1 node’s TRACK pin

Your RGRaph should look like the image above.

Now:

  • Click on the ACTIONS button, and open the Action Panel; click on the NEW ACTION button.

  • Go to the CAMERA node’s OUTPUT pin, right-click and assign the Monitor - 1 to Channel A

  • Select the USERTRACK 1 node from the Nodegraph, go to the Properties panel, find the USERTRANSFORM property under the Input

  • Left-click on USERTRANSFORM property’s menu circle, select the Timeline

  • Go to the first frame by moving the Timeline Slider handle

  • Go to USERTRANSFORM property inside the Action panel, left-click and select Add Keyframe

  • Go to the 4th second, change the Y (Position) value to 500 and then change the Y (Yaw) value to -50

  • Add another keyframe to the USERTRANSFORM.

  • While your last keyframe is selected, go to the Keyframe Interpolation, select the EaseOut and click PLAY.

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