After you have purchased the plugin, you can activate in the plugins menu here:
To be able to use a UMG widget with the Spectator Control Window you have to create ControlWindowActor Blueprint and add that to your startup map.
you can then create a new one based on the ControlWindow or re-parent your existing UMG widget to this class.
To create a new ControlWindow UMG widget, create a new Blueprint Class a search for ControlWindow in All Classes and press select like the image below:
If you already have a UMG widget you would like to use in the Spectator Control Window you can re-parent your widget inside the widget by going to “File – Reparent Blueprint” and choose ControlWindow from the menu:
With the UMG widget, assign it to the created ControlWindowActor Blueprint you created earlier:
Now everything is set and you can start your game or app to see the VR Spectator Control Window in action!
We've added some convenient Blueprint nodes:
Event OnControlWindowActivated and OnControlWindowDeActivated
The OnControlWindowActivated and OnControlWindowDeActivated nodes allow you to bind to the Window Activated or DeActivated events. These events are triggerd when switching between the main game window and the control window. For example you could use this to toggle a UI element on the Control window so you know when it is activated or not.
The ResizeWindow node allows you to resize the control window for Blueprints.
If you want to change the title, size or position of the Spectator Control Window, you can set them in the UMG class defaults:
Enable re-focus on VR
Since Unreal Engine will always set the input focus to the window that is active we created a special checkbox to enable setting the focus back to the game after interaction with the Spectator Control Window. This way you don’t have to click back in the game window to let the user use the motion controller triggers and buttons again. If you need to be able to handle text input in the Spectator Control Window, having this option enabled will disable the Spectator window after each key press. So if you need to use text input it is advised to leave this unchecked and click the game window after you’re done using the Spectator Control Window.