根据鼠标位置围绕对象Unity3D旋转相机 [英] Rotate camera based on mouse postitions around a object Unity3D

问题描述

好的，所以我走了这么远:

Okay, So I have come this far:

public class CameraScript : MonoBehaviour {

public void RotateCamera()
    {
        float x = 5 * Input.GetAxis("Mouse X");
        float y = 5 * -Input.GetAxis("Mouse Y");
        Camera.mainCamera.transform.parent.transform.Rotate (y,x,0);
    }

}

我的相机有一个父对象，我会根据鼠标位置对其进行旋转.唯一的问题是我只能用鼠标滑动来旋转对象.如果仅单击对象旁边的位置，如何旋转基于我的相机的相机所连接的对象.预先感谢！

My camera has a parent which I rotate based on my mouse position. The only problem is that I can only swipe with the mouse to rotate the object. How can I rotate the object which is my camera is attached to based on my mouse position if I just click next to the object. Thanks in advance!

推荐答案

对于键盘和操纵杆输入，该值将在-1 ... 1范围内. 如果将轴设置为鼠标移动的增量，则鼠标的增量为 乘以轴灵敏度，范围不为-1 ... 1. 统一文档

The value will be in the range -1...1 for keyboard and joystick input. If the axis is setup to be delta mouse movement, the mouse delta is multiplied by the axis sensitivity and the range is not -1...1. Unity Document

注意:此链接很有用，请检查它.

Note: This link is usefull please check it.

所以您需要像这样更改代码.

So you need to change your code like this.

public void RotateCamera()
{
    Vector3 mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition); // Gets mouse position to Unity World coordinate system
    Camera.mainCamera.transform.parent.transform.Rotate (mousePosition);
}

如果有问题，您可以这样做

if there are problem you can do like this

public void RotateCamera()
{
    Vector3 position = new Vector3(Input.mousePosition.x, Input.mousePosition.y,0);
    Vector3 mousePosition = Camera.main.ScreenToWorldPoint(position); // Gets mouse position to Unity World coordinate system
    Camera.mainCamera.transform.parent.transform.Rotate (mousePosition);
}

另一个选择是 rotateTowards .

public float speed=10; //any value > 0
public void RotateCamera()
{
    Vector3 targetDir = Camera.main.ScreenToWorldPoint(Input.mousePosition) - Camera.mainCamera.transform.parent.transform.position;
    float step = speed * Time.deltaTime;
    Vector3 newDir = Vector3.RotateTowards(transform.forward, targetDir, step, 0.0F);
    Camera.mainCamera.transform.parent.transform.rotation =  Quaternion.LookRotation(newDir);
}

也许是语法错误，我不检查它们.

Maybe some syntax errors, i don't check them.

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