Question Block canvas UI Button touches from reaching loaded AR scene.

I'm building an iOS app in which I load an AR scene built with Vuforia at runtime. After the scene is loaded, I instantiate a canvas prefab I created in the new scene with some UI buttons. The issue is that when you touch a button the touch is passed through to the underlying scene and anchors the AR object to the plane. How do I prevent this behavior using a loaded scene I don't control?

 

Hello,

I recommend you to create a script to check if you touch a UI element or not.

Like doing a ARRaycast or PhysicalRaycast if :

Code (CSharp):

1. public static bool IsPointerOverUIObject(Vector2 touchPosition)
2.         {
3.             PointerEventData pointerEventData = new PointerEventData(EventSystem.current);
4.             pointerEventData.position = touchPosition;
5.             List<RaycastResult> raycastResults = new List<RaycastResult>();
6.  
7.             EventSystem.current.RaycastAll(pointerEventData, raycastResults);
8.  
9.             return raycastResults.Count > 0;
10.         }

return false.

 

Problem is that I don't control the loaded scene. only parent scene that the scene is loaded into

 

Humm... In this way, I don't know...

 

For posterity. I eventually sorted out that Vuforia natively ignores UI clicks just fine. However, because I was loading a bundled Vuforia scene into my main scene, I needed to include a Vuforia ARCamera in my main scene. I have no idea why, but it worked.