鼠标移动滞后

Question

所以我编写了 c# 代码来在第一人称游戏中移动鼠标和鼠标灵敏度，有些地方只是加速并开始滞后 这是代码

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class cameramovescript : MonoBehaviour
{

    public float mouseSensitivity = 100f;
    public Transform playerBody;

    float xRotation = 0f;

    // Start is called before the first frame update
    void Start()
    {
        Cursor.lockState = CursorLockMode.Locked;
    }

    // Update is called once per frame
    void Update()
    {
        float mouseX = Input.GetAxis("Mouse X") * mouseSensitivity * Time.deltaTime;
        float mouseY = Input.GetAxis("Mouse Y") * mouseSensitivity * Time.deltaTime;

        xRotation -= mouseY;
        xRotation = Mathf.Clamp(xRotation, -90f, 90f);

        transform.localRotation = Quaternion.Euler(xRotation, 0f, 0f);
        playerBody.Rotate(Vector3.up * mouseX);
    }
}

Answer 1

删除 Time.deltaTime。这是因为鼠标输入的 Input.GetAxis 为您提供了自上一帧以来鼠标移动的像素。这意味着在较长的帧上，您从 Input.GetAxis 获得的鼠标输入值会更高，而在较慢的帧上，输入会更慢。所以你要做的就是解决这个问题：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class cameramovescript : MonoBehaviour
{

    public float mouseSensitivity = 100f;
    public Transform playerBody;

    float xRotation = 0f;

    // Start is called before the first frame update
    void Start()
    {
        Cursor.lockState = CursorLockMode.Locked;
    }

    // Update is called once per frame
    void Update()
    {
        float mouseX = Input.GetAxis("Mouse X") * mouseSensitivity * Time.deltaTime;
        float mouseY = Input.GetAxis("Mouse Y") * mouseSensitivity * Time.deltaTime;

        xRotation -= mouseY;
        xRotation = Mathf.Clamp(xRotation, -90f, 90f);

        transform.localRotation = Quaternion.Euler(xRotation, 0f, 0f);
        playerBody.Rotate(Vector3.up * mouseX);
    }
}

这是我喜欢在我的项目中使用的功能：

    float GetMouseOrStickLookAxis(string mouseInputName, string stickInputName)
    {
        if (CanProcessInput())
        {
            // Check if this look input is coming from the mouse
            bool isGamepad = Input.GetAxis(stickInputName) != 0f;
            float i = isGamepad ? Input.GetAxis(stickInputName) : Input.GetAxisRaw(mouseInputName);

            // handle inverting vertical input
            if (invertYAxis)
                i *= -1f;

            // apply sensitivity multiplier
            i *= lookSensitivity;

            if (isGamepad)
            {
                // since mouse input is already deltaTime-dependant, only scale input with frame time if it's coming from sticks
                i *= Time.deltaTime;
            }
            else
            {
                // reduce mouse input amount to be equivalent to stick movement
                i *= 0.01f;
#if UNITY_WEBGL
                // Mouse tends to be even more sensitive in WebGL due to mouse acceleration, so reduce it even more
                i *= webglLookSensitivityMultiplier;
#endif
            }

            return i;
        }

        return 0f;
    }

如果您需要更深入的答案，请查看这篇文章：Mouse movement with deltaTime

祝你有美好的一天！