Find angle/direction of a Ray / Raycasthit

Hello,

I'm trying to make a Billiard game and I wanna calculate the direction on which the Cue Ball(white ball) will be moving after it hits another ball.



As you can see I wanna calculate the angle/direction in which the RAY hits the ball and the angle/direction on which the raycast will change its direction into. I need the angle to display as a Vector3 variable so I can use it on the linerenderer(3).

I already calculated the direction that the ball that gets hit will go.

If you could help me on this that would be great!

Current code:

Code (CSharp):

1. RaycastHit hitz;
2.     if (Physics.SphereCast(transform.position, 0.8f, location - transform.position, out hitz, Mathf.Infinity, lmm2))
3.     {
4.  
5.         lineRenderer2 = hitz.collider.GetComponentInChildren<LineRenderer>();
6.         lineRenderer2.SetVertexCount(2);
7.  
8.         if (!Input.GetKey(KeyCode.Mouse0))
9.             lineRenderer2.SetPosition(0, hitz.point);
10.    
11.         if (!Input.GetKey(KeyCode.Mouse0))
12.            {
13.                Vector3 start = hitz.point;
14.                Vector3 end = start + (-hitz.normal * 4);
15.    
16.                if (lineRenderer2)
17.                {
18.                    if (!Input.GetKey(KeyCode.Mouse0))
19.                        lineRenderer2.SetPosition(1, end);
20.                }
21.  
22.                if(lineRenderer3)
23.                {
24.                  
25. anglelel = Vector3.Angle(hitz.normal, hitz.point);
26.                                 Vector3 cross = Vector3.Cross(hitz.normal, hitz.point);
27.                                 if(cross.y > 0)
28.                                 {
29.                                     tzt = Quaternion.AngleAxis(90f, hitz.normal) * realStick.transform.forward;
30.                                 }
31.                                 if (cross.y < 0)
32.                                 {
33.                                     anglelel = -anglelel;
34.                                     tzt = Quaternion.AngleAxis(270f, hitz.normal) * realStick.transform.forward;
35.                                 }
36.                                 Vector3 start2 = hitz.point;
37.                                 Vector3 end2 = start2 + ((tzt) * 5f);
38.                                 lineRenderer3.SetPosition(0, hitz.point);
39.                                 lineRenderer3.SetPosition(1, end2);
40.                }
41.             }
42.     }

Thank you for your time.

Edit:

This part of the code has been changed to this one, currently makign some progress but still, it's not good enough.

Before

Code (CSharp):

1. if(lineRenderer3)
2.             {
3.                 Vector3 start2 = hitz.point;
4.                 //THIS IS WHERE I'M CURRENTLY STUCK AT
5.                 Vector3 end2 = start2 + (hitz.point * 0.7f);
6.                 lineRenderer3.SetPosition(0, hitz.point);
7.                 lineRenderer3.SetPosition(1, end2);
8.              }

After

Code (CSharp):

1.  
2.     if(lineRenderer3)
3.     {
4.          anglelel = Vector3.Angle(hitz.normal, hitz.point);
5.          Vector3 cross = Vector3.Cross(hitz.normal, hitz.point);
6.          if(cross.y > 0)
7.          {
8.  
9.               tzt = Quaternion.AngleAxis(90f, hitz.normal) *realStick.transform.forward;
10.          }
11.           if (cross.y < 0)
12.           {
13.               anglelel = -anglelel;
14.               tzt = Quaternion.AngleAxis(270f, hitz.normal) * realStick.transform.forward;
15.            }
16.            Vector3 start2 = hitz.point;
17.            Vector3 end2 = start2 + ((tzt) * 5f);
18.            lineRenderer3.SetPosition(0, hitz.point);
19.            lineRenderer3.SetPosition(1, end2);
20.       }