[SOLVED] Raycast and OnMouseEnter trigger off center / off middle

I have tried using Raycast and OnMouseEnter and OnMouseOver to check if player is over a button made from a 3dCube in Unity.

It works with all these methods but it triggers off center "off middle" from top and bottom on the buttons. See clip:

My code:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class ElevatorChooseFloorButton : MonoBehaviour {
6.     private ElevatorHandler _ElevatorHandler;
7.  
8.     public Animator ElevatorInnerDoorsAnimator;
9.     public Camera MainCamera;
10.     public GameObject ButtonDestination;
11.  
12.     public Canvas c;  // Temporary
13.  
14.     // Use this for initialization
15.     void Start () {
16.         _ElevatorHandler = GameObject.Find("ApartmentBuilding01_Elevator").GetComponent<ElevatorHandler>();
17.  
18.         c = GameObject.Find("Canvas_Interaction").GetComponent<Canvas>(); // Temporary
19.     }
20.  
21.     // Update is called once per frame
22.     void Update () {
23.         // This code gives same results as OnMouseEnter or OnMouseOver
24.  
25.         //if (ElevatorInnerDoorsAnimator.GetBool("resting") == true && _ElevatorHandler.HasDestination == false) {
26.         //    Ray ray;
27.         //    RaycastHit hit;
28.         //    ray = MainCamera.ScreenPointToRay(Input.mousePosition);
29.         //    if (Physics.Raycast(ray, out hit, 4)) {
30.         //        if (hit.collider.tag == "FloorChooserButton") {
31.         //            if (hit.transform.name == this.transform.name) {
32.         //                if (Input.GetMouseButtonUp(0)) {
33.         //                    ElevatorInnerDoorsAnimator.SetBool("resting", false);
34.         //                    ElevatorInnerDoorsAnimator.SetBool("open", false);
35.         //                    ElevatorInnerDoorsAnimator.SetBool("close", true);
36.         //                    _ElevatorHandler.HasDestination = true;
37.         //                    _ElevatorHandler.ElevatorGotoFloor = ButtonDestination;
38.         //                    _ElevatorHandler.ElevatorButton = hit.transform.gameObject;
39.         //                }
40.         //            }
41.         //        }
42.         //    }
43.  
44.         //}
45.  
46.  
47.     }
48.  
49.  
50.     private void OnMouseEnter() {
51.         if (ElevatorInnerDoorsAnimator.GetBool("resting") == true && _ElevatorHandler.HasDestination == false) {
52.             c.GetComponent<CanvasGroup>().alpha = 1f; // Temporary
53.             if (Input.GetMouseButtonUp(0)) {
54.                 ElevatorInnerDoorsAnimator.SetBool("resting", false);
55.                 ElevatorInnerDoorsAnimator.SetBool("open", false);
56.                 ElevatorInnerDoorsAnimator.SetBool("close", true);
57.                 _ElevatorHandler.HasDestination = true;
58.                 _ElevatorHandler.ElevatorGotoFloor = ButtonDestination;
59.                 _ElevatorHandler.ElevatorButton = this.transform.gameObject;
60.             }
61.         }
62.     }
63.  
64.  
65.     private void OnMouseExit() {
66.         c.GetComponent<CanvasGroup>().alpha = 0f; // Temporary
67.     }
68.  
69.  
70. }
71.  

What am I doing wrong here!? Been pulling my hair on this thing today

 

Any ideas?

 

It seems that if I move the colliders Y centers to 0.11 the raycast reacts as it should.

I really do not think this is the correct way to solve this problem and I am still in need of some ideas on what makes this happen.

I have checked if the white dot is in the middle of my playing area and it is so that should not be the case?.


UPDATE:
When I debug the ray, the ray comes out from the middle of the cube as it should. Still it will trigger 0.11f down from the cube top

UPDATE:
The further away I get, the bigger the offset!? Something is really wrong here.

 

SOLVED

I need to use

Code (CSharp):

1. ViewportPointToRay(new Vector3(0.5f, 0.5f, 0f));

I guess that is correct as I dont really use the mousecursor, I only use center of screen as the cursor is hidden by the First Person Controller