CODEWITHSUNDEEP
unity-game-engine
Amar.linsila
Amar.linsila

Reputation: 303

Detect if gameObject is blocking the text in WorldSpace

In Unity, is there a way to detect in the camera's field of view, if a cube object is infront of a text component which is in World Space? Such that the cube blocks the text in camera's FoV?

Upvotes: 1

Views: 65

Answers (1)

Guilherme Umemura
Guilherme Umemura

Reputation: 323

//this is your object that you want to have the UI element hovering over
GameObject WorldObject;
     
//this is the ui element
RectTransform UI_Element

//first you need the RectTransform component of your canvas
RectTransform CanvasRect=Canvas.GetComponent<RectTransform>();
     
//then you calculate the position of the UI element
//0,0 for the canvas is at the center of the screen, whereas WorldToViewPortPoint 
//treats the lower left corner as 0,0. Because of this, you need 
//to subtract the height / width of the canvas * 0.5 to get the correct position.
     
Vector2 viewportPosition=Cam.WorldToViewportPoint(WorldObject.transform.position); 
Vector2 WorldObject_ScreenPosition=new Vector2( 
          ((ViewportPosition.x*CanvasRect.sizeDelta.x)-(CanvasRect.sizeDelta.x*0.5f)),
          ((ViewportPosition.y*CanvasRect.sizeDelta.y)-(CanvasRect.sizeDelta.y*0.5f)));
     
//now you can set the position of the ui element
UI_Element.anchoredPosition=WorldObject_ScreenPosition;

It helped me in the past and i hope it will help you too

font: https://answers.unity.com/questions/799616/unity-46-beta-19-how-to-convert-from-world-space-t.html

Upvotes: 1

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