前言

由于欧拉角具有直观的可读性，做相机旋转时选择修改eulerAngles 来实现旋转，但实际效果与预期稍有不同，这是因为欧拉角受到万向锁（Gimbal Lock）的影响，在赋值时需要对输入的角度进行调整。

if (value < 180)
{value = Mathf.Clamp(value, -180, -min);
}
else
{value = Mathf.Clamp(value, 360 - max, 360);
}

实现

private void Rotate()
{xInput = Input.GetAxis("Mouse X");yInput = Input.GetAxis("Mouse Y");float xAngle = transCam.eulerAngles.x - yInput * speedRotate;float yAngle = transCam.eulerAngles.y + xInput * speedRotate;xAngle = Clamp(xAngle, minAngleX, maxAngleX);yAngle = Clamp(yAngle, minAngleY, maxAngleY);transCam.eulerAngles = new Vector3(xAngle, yAngle, 0);float Clamp(float value, float min, float max){if (min > max){float temp = min;min = max;max = temp;}if (value < 180){value = Mathf.Clamp(value, -180, -min);}else{value = Mathf.Clamp(value, 360 - max, 360);}return value;}
}