hit.textureCoord with UITexture

[ddfire]

hi
i am using UITexture and Vector2 pixelUV = hit.textureCoord; always return 0
how can i fix it?
thanks

[ArenMook]

RaycastHit will only contain that information if it hits a renderer as far as I know. Raycasting into NGUI colliders won't give you anything because they don't have a renderer. You need to use math to calculate the UVs yourself.

[ddfire]

Any idea where to start?

[ArenMook]

Raycasting gives you a world position (hit.point). Knowing the widget's transform, use InverseTransformPoint function to convert it to local space. Account for the pivot if you need to (if it's bottom left, you don't). The position should now be in 0-1 range -- which coincidentally matches your UV coordinates of the texture.

[ddfire]

MR. You are a genius!!!!
Thanks you VERY VERY MUCH!!!!

This function will return the UV Coordinates of the hit to a UITexture

1.        
2. Texture2D tex;
3. tex = UItarget.material.mainTexture as Texture2D;
4. public Vector2 getUVPoint2(Vector3 origin)
5. {
6.         RaycastHit hit;
7.         if (Physics.Raycast(origin, Vector3.forward, out hit)){
8.                 Vector3 pixelUV = UItarget.transform.InverseTransformPoint(hit.point);
9.                 pixelUV.x *= tex.width;
10.                 pixelUV.y *= tex.height;
11.                 return pixelUV;
12.         }
13.         return new Vector2(-1,-1);
14. }
15.