NEED HELP, colliders not working with fast movements

So I'm working on this project, I'm having issues it is a 3D project, my issue is I have a ball that is going to be moving at high speeds (lets say baseball for example) and when I go to hit it, its moving to fast that it jumps the collider ( goes right through it as if its not there) , it gets skipped in between frames is what I believe, I have tried everything, ive done ton of research, ive tried "dontgothroughthings" ive tried setting up collision with rigidbodys, nothing works, it keeps going through ive read a lot about using a raycast, but I'm not a coder :/ I know a lot with unity, and everything but when it comes to coding I'm completely useless, can someone please help me!

 

As a "concept" how about:
1) Raycast in the direction of the velocity and in the opposite direction.
2) Store the forward collider hit by the raycast each frame.
3) If your reverse raycast hits the object that the forward raycast hit in the previous frame, assume you went through the collider.

 

Im a noob with this -_- i know unity but ive never messed with raycast, i have no idea what that means i know the basic physics

 

tbh, doesnt sound like you know unity at all, since coding is pretty much at the heart of it. Go through some learn tutorials.
No one can help you if you cant help yourself.

 

Ive used unity alot.... yes im not very well coding smart, ive wrote some small simple codes, and i can put 2 and 2 together and go through scripts to edit and re-assighn things, but idk much when it comes to writing out full blown scripts ive used unity for a while most of the time when i run into issues i look up tutorials and im able to solve them but this isnt that case, i cant find any tutorials on this situtation, and i cant find any classes for C# already looked for those

 

Fair enough...

What velocities are you using?

What code are you using to put velocity/movement on ball?

 

Im creating a ping pong style, i only aplied a rigidbody and sphere collider to it, with a box collider, decided not to use a mesh collider because i know they have there own problems the issue im having is sence the ball is moving fast, it goes right through the paddle, caused by the collider being skipped in between the frames the ball passes the collider when moving to the next frame its not responding to the collider, i cant find a way around that, ive seen alot of solutions saying to try the raycaster but ive never personnal used a raycast before never needed it till now apparently

 

The box collider is on the paddle*

 

Here is a video of it being played this is whats happening if u notice the ball (and box when i swing at it), is okay till it gets fast then it just falls through, im trying to get this down and working so i can import it to the actaul project

 

What code are you using to move your bat... try to answer the question this time.

 

Ill post it as soon as get home, im using a stock edited code for steam vr but when i get home ill upload the script

 

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class ViveGripExample_Slider : MonoBehaviour {
5.   private ViveGrip_ControllerHandler controller;
6.   private float oldX;
7.   private float MAX_VIBRATION_STRENGTH = 0.2f;
8.   private float MAX_VIBRATION_DISTANCE = 0.03f;
9.  
10.     void Start () {
11.     oldX = transform.position.x;
12.   }
13.  
14.   void ViveGripGrabStart(ViveGrip_GripPoint gripPoint) {
15.     controller = gripPoint.controller;
16.   }
17.  
18.   void ViveGripGrabStop() {
19.     controller = null;
20.   }
21.  
22.     void Update () {
23.     float newX = transform.position.x;
24.     if (controller != null) {
25.       float distance = Mathf.Min(Mathf.Abs(newX - oldX), MAX_VIBRATION_DISTANCE);
26.       float vibrationStrength = (distance / MAX_VIBRATION_DISTANCE) * MAX_VIBRATION_STRENGTH;
27.       controller.Vibrate(50, vibrationStrength);
28.     }
29.     oldX = newX;
30.     }
31. }
32.  

 

that's the code I'm using

 

Code (CSharp):

1. using UnityEngine;
2. using Valve.VR;
3.  
4. public class SteamVR_TrackedObject : MonoBehaviour
5. {
6.     public enum EIndex
7.     {
8.         None = -1,
9.         Hmd = (int)OpenVR.k_unTrackedDeviceIndex_Hmd,
10.         Device1,
11.         Device2,
12.         Device3,
13.         Device4,
14.         Device5,
15.         Device6,
16.         Device7,
17.         Device8,
18.         Device9,
19.         Device10,
20.         Device11,
21.         Device12,
22.         Device13,
23.         Device14,
24.         Device15
25.     }
26.  
27.     public EIndex index;
28.     public Transform origin; // if not set, relative to parent
29.     public bool isValid = false;
30.  
31.     private void OnNewPoses(params object[] args)
32.     {
33.         if (index == EIndex.None)
34.             return;
35.  
36.         var i = (int)index;
37.  
38.         isValid = false;
39.         var poses = (Valve.VR.TrackedDevicePose_t[])args[0];
40.         if (poses.Length <= i)
41.             return;
42.  
43.         if (!poses[i].bDeviceIsConnected)
44.             return;
45.  
46.         if (!poses[i].bPoseIsValid)
47.             return;
48.  
49.         isValid = true;
50.  
51.         var pose = new SteamVR_Utils.RigidTransform(poses[i].mDeviceToAbsoluteTracking);
52.  
53.         if (origin != null)
54.         {
55.             pose = new SteamVR_Utils.RigidTransform(origin) * pose;
56.             pose.pos.x *= origin.localScale.x;
57.             pose.pos.y *= origin.localScale.y;
58.             pose.pos.z *= origin.localScale.z;
59.             transform.position = pose.pos;
60.             transform.rotation = pose.rot;
61.         }
62.         else
63.         {
64.             transform.localPosition = pose.pos;
65.             transform.localRotation = pose.rot;
66.         }
67.     }
68.  
69.     void OnEnable()
70.     {
71.         var render = SteamVR_Render.instance;
72.         if (render == null)
73.         {
74.             enabled = false;
75.             return;
76.         }
77.  
78.         SteamVR_Utils.Event.Listen("new_poses", OnNewPoses);
79.     }
80.  
81.     void OnDisable()
82.     {
83.         SteamVR_Utils.Event.Remove("new_poses", OnNewPoses);
84.         isValid = false;
85.     }
86.  
87.     public void SetDeviceIndex(int index)
88.     {
89.         if (System.Enum.IsDefined(typeof(EIndex), index))
90.             this.index = (EIndex)index;
91.     }
92. }
93.  
94.  

 

that is the one for tracking the controller but the first script is my script on the actual paddle itself letting me pick up the items and what not

 

Have you tried the suggestions in: http://answers.unity3d.com/questions/34444/high-speed-object-collisionhow-to-avoid-pass-throu.html?

 

Yes, tried it all with no luck

 

Is your rigidbody kinematic?

The major problem youre going to run into is youre using the wrong code to move your paddle, which is why stuff is falling through (well, most likely).

If the rigidbody is set to kinematic, using transform.postition/rotation is a valid way to move the paddle, if not, you need to use rigidbody.MovePostion/MoveRotation.

Try that see if it helps with your problem.

 

Yea i set the paddle to kinematic i will try that tho

 

Does it worked?

 

HI!
Got any more thoughts on this Melv?

I have been trying for months to achieve pretty much the same thing as this guy, now using unity 2019.
Just cannot strike it properly and literally every tutorial I can find is either outdated and doesn't work or vaguely mentions raycasting without even enough description for me to look up what they are suggesting.

I would happily just buy an asset that contained the required scripts, but alas i cant even find that!