Question

我正在尝试重新创建Google Cardboard应用程序“Exhibit”演示的功能。即从各个方向查看单个物体 - 向上看并在物体下方看到，向下看并从上方观察它，向左或向右看，然后从侧面看到它，然后再向后看。

我尝试过很多东西，例如让对象成为相机的孩子，然后使用transform.LookAt(target);让相机专注于对象，但它不起作用。

Unity5的新手，所以非常感谢任何帮助。

更新

使用SmoothMouseLook脚本（http://pastebin.com/vMFkZJAm）中的代码，这是我迄今为止最接近的代码，但它并没有真正起作用，感觉太“失去控制”（对象保持旋转而非顺畅转向检查）并且比“展览”演示更难以预测。我的猜测是我复杂化了。有人有什么想法吗？...

在相机（“主相机”）上，将其固定在对象上：

 using UnityEngine;
 using System.Collections;

 public class LookAt : MonoBehaviour {
     public Transform target;

     void Update () {
         transform.LookAt(target);
     }
 }

在对象上，附上此脚本：

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


public class SmoothMouseLook : MonoBehaviour
{   
    /*
     This script is used to average the mouse input over x 
     amount of frames in order to create a smooth mouselook.
     */

    //Mouse look sensitivity    
    public float sensitivityX = 1f;
    public float sensitivityY = 1f;


    //Default mouse sensitivity
    public float defaultSensX = 1f;
    public float defaultSensY = 1f;


    //Minimum angle you can look up
    public float minimumY = -60f;
    public float maximumY = 60f;

    //Minimum angle you can look up
    public float minimumX = -60f;
    public float maximumX = 60f;


    //Number of frames to be averaged, used for smoothing mouselook
    public int frameCounterX = 35;
    public int frameCounterY = 35;


    //Mouse rotation input
    private float rotationX = 0f;
    private float rotationY = 0f;


    //Used to calculate the rotation of this object
    private Quaternion xQuaternion;
    private Quaternion yQuaternion;
    private Quaternion originalRotation;


    //Array of rotations to be averaged
    private List<float> rotArrayX = new List<float> ();
    private List<float> rotArrayY = new List<float> ();


    void Start ()
    {
        //Lock/Hide cursor

        if (GetComponent<Rigidbody>())      
            GetComponent<Rigidbody>().freezeRotation = true;


        originalRotation = transform.localRotation;

    }


    void FixedUpdate () 
    {

        //Mouse/Camera Movement Smoothing:    
        //Average rotationX for smooth mouselook

        float rotAverageX = 0f;
        //rotationX += Camera.main.transform.eulerAngles.x * sensitivityX;
        //rotationX += Cardboard.SDK.HeadRotation.eulerAngles.x * sensitivityX;
        rotationX += Cardboard.SDK.HeadPose.Orientation.x * sensitivityX;

        rotationX = ClampAngle (rotationX, minimumX, maximumX);

        //Add the current rotation to the array, at the last position
        rotArrayX.Add (rotationX);

        //Reached max number of steps?  Remove the oldest rotation from the array
        if (rotArrayX.Count >= frameCounterX) {

            rotArrayX.RemoveAt (0);

        }

        //Add all of these rotations together
        for (int i_counterX = 0; i_counterX < rotArrayX.Count; i_counterX++) {
            //Loop through the array
            rotAverageX += rotArrayX[i_counterX];
        }


        //Now divide by the number of rotations by the number of elements to get the average
        rotAverageX /= rotArrayX.Count;


        //Average rotationY, same process as above
        float rotAverageY = 0;
        //rotationY += Camera.main.transform.eulerAngles.y * sensitivityY;
        //rotationY += Cardboard.SDK.HeadRotation.eulerAngles.y * sensitivityY;
        rotationY += Cardboard.SDK.HeadPose.Orientation.y * sensitivityY;

        rotationY = ClampAngle (rotationY, minimumY, maximumY);
        rotArrayY.Add (rotationY);


        if (rotArrayY.Count >= frameCounterY) {
            rotArrayY.RemoveAt (0);
        }


        for (int i_counterY = 0; i_counterY < rotArrayY.Count; i_counterY++) {  
            rotAverageY += rotArrayY[i_counterY];
        }


        rotAverageY /= rotArrayY.Count;


        //Apply and rotate this object
        xQuaternion = Quaternion.AngleAxis (rotAverageX, Vector3.up);
        yQuaternion = Quaternion.AngleAxis (rotAverageY, Vector3.left);

        transform.localRotation = originalRotation * xQuaternion * yQuaternion;

    }



    private float ClampAngle (float angle, float min, float max)
    {
        if (angle < -360f)  
            angle += 360f;
        if (angle > 360f)
            angle -= 360f;

        return Mathf.Clamp (angle, min, max);

    }
}

Answer 1

对于该特定用例，您不需要脚本。假设您使用的是CardboardMain预制件，请执行以下操作：

将对象放在原点，然后将CardboardMain放在那里。
在Cardboard设置中，将Neck Model Scale设置为0。
打开CardboardMain并选择Head对象下的Main Camera。
将其变换位置Z值设置为负值（足以看到对象）。

（您可以将其视为“自拍杆”相机型号。）

适用于带有Unity 5的Google Cardboard的单个对象3D查看器

1 个答案: