OpenXR UI interactions not working

[mike-petersen]

Hi,
i used the sample code from the manual (https://novaui.io/manual/XRInput.html) to get the input system working with OpenXR.
I debug it and i get a ray and the press state from the controller. Unfortunately a button press is never triggered.
I also changed the Interactable click behaviour to different

I do not know why it is not working. Does anyone have a clue?

[adgray1]

Hi. Would you mind sharing a few screenshots of your project? It would be helpful to see the following:

1. Your scene with the buttons you're trying to click
2. The Interactable editor (so we can see how it's configured)

If you're not using the Button component that's part of the UIControls sample, would you also mind sharing the code you're using to subscribe to various Gestures?

[mike-petersen]

I copied the button from the example. I tested a bit more and it looks like it seems to have to do with the scaling somehow. There seems to be a really small spot (not even on the button) if i point there it works.

[adgray1]

A few more follow up questions to better understand your setup:

• What is the Vector3 world scale of the buttons?
• Where is the really small clickable spot relative to the buttons?
• Would you be able to share a screenshot of your scene view and the hierarchy window?

[mike-petersen]

The scale of the Buttons in 1. I only have a scale on the root NovaMenu of 0.001. The spot was more to the right and a bit up in relation to the buttons. I found it by accident and it was quite hard to get there again.

[adgray1]

Thank you for the additional info, but unfortunately nothing is standing out so far. So a few more questions:

• Do you have a visual of your controller ray to see exactly when/where it's intersecting the button?
  • Would you mind sharing a screenshot of the ray when it's intersecting the "clickable spot"?
• Is the "clickable spot" the same world position for all buttons or the same local position for all buttons?

[mike-petersen]

Maybe it is easier to switch to a more standard layout. Do you have an example of a standard layout which is in world space. The example with the button was directly on the camera.

[adgray1]

A simpler world space test would be:

1. Create an empty GameObject as a scene root object (don't add a UIBlock component)
2. Set the scene root's Transform scale to 0.001 on all axes, including Z (non-uniform scaling can break things)
3. You can move/rotate the scene root's Transform however you need, so it's within your field of view
4. Add one of the UIControl button prefabs as a child of this new scene root
5. Ensure the button's Transform scale is set to 1 on all axes
6. Zero out the rotation and position on the button's Transform

If you're calling Interaction.Point every frame with your controller ray, you should see the button color change when the ray intersects it.