如何通过使用移动陀螺仪输入旋转相机时锁定相机z的旋转 [英] How to lock rotation in z of my camera while rotating the camera by using mobile gyroscope input

问题描述

我正在使用陀螺仪输入来统一旋转相机，因为 我希望玩家环顾x，y. 但是，z也会以某种方式旋转. 如何保持z旋转为0，同时至少保持我现在拥有的x和y的平滑旋转?

I am rotating the camera in unity using gyroscope input, because I want the player to look around the x,y. However somehow there is also rotation in z. How do I keep the z rotation at 0, while at least remaining the smooth rotation in x and y I have now?

一直在谷歌上搜索，但是还没有找到任何能使搜索结果保持真实状态的解决方案 z为0.

Have been googling but haven't found any solutions which actually keep the z at 0.

这是我用于旋转的代码，它已附加在相机上.

Here is the code I use for rotation, it's attached to the camera.

 private void Start()
{
    _rb = GetComponent<Rigidbody>();
    Input.gyro.enabled = true;
}

 private void Update()
{
    float gyro_In_x = -Input.gyro.rotationRateUnbiased.x;
    float gyro_In_y = -Input.gyro.rotationRateUnbiased.y;

    transform.Rotate(gyro_In_x, gyro_In_y, 0);
}

推荐答案

我的猜测是问题出在transform.rotation *= Quaternion.Euler(gyro_In_x, gyro_In_y, 0);行.尝试设置旋转值而不是乘以:

My guess is the problem comes from the transform.rotation *= Quaternion.Euler(gyro_In_x, gyro_In_y, 0); line. Trying setting the rotation value instead of multiplying it:

private void Start()
{
    _rb = GetComponent<Rigidbody>();
    Input.gyro.enabled = true;
}

private void Update()
{
    Vector3 previousEulerAngles = transform.eulerAngles;
    Vector3 gyroInput = -Input.gyro.rotationRateUnbiased; //Not sure about the minus symbol (untested)

    Vector3 targetEulerAngles = previousEulerAngles + gyroInput * Time.deltaTime * Mathf.Rad2Deg;
    targetEulerAngles.z = 0.0f;

    transform.eulerAngles = targetEulerAngles;

    //You should also be able do it in one line if you want:
    //transform.eulerAngles = new Vector3(transform.eulerAngles.x - Input.gyro.rotationRateUnbiased.x * Time.deltaTime * Mathf.Rad2Deg, transform.eulerAngles.y - Input.gyro.rotationRateUnbiased.y * Time.deltaTime * Mathf.Rad2Deg, 0.0f);
}

希望这会有所帮助，

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