I have a character in unity controlled by a rigidbody. However, the jump is one jerky movement not a smooth motion. Here is my script:

using UnityEngine;
using UnityEngine.InputSystem;
using UnityEngine.SceneManagement;

public class Controller : MonoBehaviour
{
    [Tooltip("Rigidbody component attached to the player")]
    public Rigidbody rb;

    private float movementX;
    private float movementY;
    private float gravity = -9.81f;
    private float speedX = 10;
    private float speedY = 1000;
    private float speedZ = 5;
    private bool isJumping = false;

    // Start is called before the first frame update
    void Start()
    {
        rb = GetComponent<Rigidbody>();
    }
    void Update()
    {

    }
    void OnCollisionEnter(Collision collision)
    {
        // SceneManager.LoadScene(1);
    }

    // Update is called once per frame
    void OnMove(InputValue movementValue)
    {
        Vector2 movementVector = movementValue.Get<Vector2>();

        movementX = movementVector.x;
        movementY = movementVector.y;
    }

    void OnJump()
    {
        //isJumping = true;
        Vector3 movementVelocity = new Vector3();
        movementVelocity.y  = Mathf.Sqrt(speedY * -3.0f * gravity);
        movementVelocity.y *= 100;
        rb.AddForce(movementVelocity, ForceMode.Force);
        //isJumping = false;
    }

    void CalculateMovement()
    {
        Vector3 movementVelocity = new Vector3(movementX * speedX, 0, speedZ);
        rb.velocity = movementVelocity;
    }
    void FixedUpdate()
    {
        CalculateMovement();
    }
}

Is there a way to get a smooth jump with a rigidbody?

I have tried all the different options for ForceMode and tried updating the Rigidbody.velocity characteristic, both at the same time and separately to the movement.

CodePudding user response：

Try using AddForce(), thats easier and always works as well. Your code will give a smooth jump too, but AddForce() is more about Unity physics.

CodePudding user response：

For smooth transitions you would ordinarily use interpolation, or lerping. Interpolation allows you to smooth out the effect of running physics at a fixed frame rate. Interpolate is an Rigidbody' s property and is is turned off by default, try to enabled it.