Problem trembling asset when moving

Hello

Beginner here

i try to make a "roll a ball "game and i have this problem

(xbox controler )
i don't know what is causing this problem
i supose it is my code , but for what i have write it is working for me (mean it do somewhat the job , 3 person with orbit and folowup movement(camera and ball ) and physics )
(try cinemachine , but do not work at all , the camera move randomly when i move )
if you can help thank you

Code (CSharp):

1. public class PlayerController : MonoBehaviour
2. {
3.     public float speed;
4.     public float maxSpeed;
5.     public Transform cam;
6.     public int vitesseCameraRotation;
7.     public float distToGround = 0.85f;
8.     public LayerMask LayerMask;
9.    
10.     private Rigidbody rb;
11.     private bool onGround;
12.  
13.    
14.     void Start ()
15.     {
16.         rb = GetComponent<Rigidbody>();
17.        
18.     }
19.     void FixedUpdate ()
20.     {
21.    
22.  
23.         Debug.Log (onGround);
24.        
25.         float moveHorizontal = Input.GetAxis ("Horizontal");
26.         float moveVertical = Input.GetAxis ("Vertical");
27.         //camera direction influence
28.         Vector3 camF = cam.forward;
29.         Vector3 camR = cam.right;
30.  
31.         camF.y = 0;
32.         camR.y = 0;
33.         camF = camF.normalized;
34.         camR = camR.normalized;
35.  
36.         Vector3 movement = (camF*moveVertical + camR*moveHorizontal)*Time.deltaTime*vitesseCameraRotation;
37.         // ground apply addforce
38.         if (onGround)
39.         {
40.            rb.AddForce (movement * speed);
41.         }
42.        
43.         // limit speed
44.         if(rb.velocity.magnitude > maxSpeed)
45.         {
46.             rb.velocity = rb.velocity.normalized * maxSpeed;
47.         }
48.  
49.         // ground detection
50.         RaycastHit hit;
51.         if(Physics.SphereCast (transform.position,distToGround, Vector3.down, out hit, distToGround+1.0f,LayerMask,QueryTriggerInteraction.UseGlobal))
52.         {
53.             onGround = true;
54.         }
55.         else
56.         {
57.             onGround = false;
58.         }
59.    
60.     }
61.  
62.    
63.  
64.  
65. }

Code (CSharp):

1. public class CameraControler : MonoBehaviour
2. {
3.     public Transform PlayerTransform;
4.  
5.     public Vector3 offset;
6.     public float yoffset;
7.     public float xoffset;
8.     public float RotationsSpeed = 5.0f;
9.  
10.      void Start () {
11.         offset = new Vector3(PlayerTransform.position.x, PlayerTransform.position.y + yoffset, PlayerTransform.position.z + xoffset);
12.     }
13.  
14.  
15.  
16.     void LateUpdate () {
17.  
18.         offset = Quaternion.AngleAxis (Input.GetAxis("Mouse X") * RotationsSpeed, Vector3.up) * offset;
19.           transform.position = PlayerTransform.position + offset;
20.           transform.LookAt(PlayerTransform.position);
21.  
22.        
23.  
24.     }
25.  
26.    
27.  
28. }

 

Can you be more specific about the problem? I don't know if it's the first few seconds of the video, where the texture seems to be moving on the sphere. Otherwise, I can't really see any trembling while the ball's moving, but that might be due to the video compression.

Do you have a special shader on this material that's causing it to move?

 

hi , Thank you for your answer

it is not the ball that have a problem trembling
look at the duck or at the pro builder asset
it seem to be like a kind of frame rate problem (i do not see it on the ball )
(the ball no special shader , diffuse , normal , specular , emission )

 

Sorry, it's really difficult to tell from the video what the problem is. I see some artifacts on the duck and the level, but I can't tell that apart from basic video compression noise in the video itself.

If you think there's a frame rate issue, though, you should use the profiler to determine whether some frames are taking extra long to render.

 

Thank you ,
i think i will try to restart from zero
it is not the frame rate , seem constant
it seem it only do it when i use mouseX and a direction , maybe it is here that i must look ,
i m going to try making (hoping to ) cleaner code

 

Well, I think you could get some help if you very clearly explain the problem. I really just can tell exactly what the issue is in your video. Maybe a shorter video, just a couple of seconds, showing the issue? Make sure the quality if high so that it doesn't have too many video artifacts.

 

Ask some friend , if they see what is the problem and they see it ,I think what you think of video artefact is my problem .
i have remake a video with i hope better quality

on the image we can see that the duck jerks as if the image frequency is not constant each time I turn the camera and move at the same time, because when I release the camera the shaking stops. I hope my problem is a little clearer ^^'.

 

Okay, thanks for clarifying. So the issue is that when you're rotating with the mouse, it's not as smooth as you'd like. It sort of makes lots of small jumps every few frames instead of turn smoothly.

First, it would be good to know whether this only happens if you're moving, or if it also happens when you move the mouse while the ball is standing still. You don't have that in any of your videos, so it's hard to say.

I'm not sure what's causing the issue. But since you're moving the ball in FixedUpdate, and called LookAt in LateUpdate, things will only update as quickly as FixedUpdate is called. Have you tried turning on Interpolation on your player's rigidbody? Try setting it to "Interpolate", and see if that helps at all. But also let us know whether things rotate smoothly if the player isn't moving, just so we definitely know it's related to the rigidbody movement.

 

I have try to fix it by making all in FixedUpdate
and it fix the problem ^^ (learn something about update , Thanks !)

Camera was rotating smoothly
I try Interpolate and the ball this time was stutering like crazy

 

Hmm. Doing everything in FixedUpdate isn't ideal, so you probably still have some work to do. FixedUpdate is generally only for performing physics updates. Adjusting the camera rotation in FixedUpdate just seems a bit wrong. But I can't explain why this helps in your case.

 

Hi , thank you for your answer ,
i have try but it seem to do the same problem

i think i know why it do that , rotation of the camera is on camera script , and it influence the vector of the player script if it is not at the same update there is a conflict the game is for me trying to put the same frame at 2 different time .

i m putting this idea in a corner in my head , will propably come back rewrite this later if this is too much of a problem , i m going to work on other thing , gain more experience in coding ^^ .

i have remove Time.deltaTime for the player script too , because like it was it made the player accelerate no stop ,
it was the cause of my trying to limit the speed with rb.velocity , who cause a problem too because it limit speed even when gravity is affecting the ball (constant speed ) the joy of games physics