Unity3D⿏标操作实现旋转（相机围绕⽬标物体）、缩放观察物
体
//放在摄像头上，实现旋转、缩放观察物体
using UnityEngine;
public class BaCam : MonoBehaviour
公务员照片尺寸
{
dad是什么意思中文 ///缩放距离
public float ZoomSpeed=30;
//拖动速度
public float MovingSpeed=0.5f;
//视⾓和摆动速度
public float RotateSpeed=1;
//摄像机旋转速度
public float distance=30;
public Transform rotateCenter;
public Vector3 mouPos1; //记录⿏标点下去瞬间的位置
public Vector3 mouPos2; //记录⿏标任何时刻的位置
public Quaternion start_qua; //⾓度使⽤四元数
public Vector3 start_pos; //位置坐标
// U this for initialization
void Start()
{
/
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/记录相机开始的⾓度与位置
start_qua = ation;
start_pos = transform.position;
}
Quaternion rotation;
Vector3 position;
float delta_x,delta_y,delta_z;
float delta_rotation_x,delta_rotation_y;
// Update is called once per frame
void Update()
{水果的英文
扔鸡蛋
//拖动
if(Input.GetMouButton(2))
{
delta_x=Input.GetAxis("Mou X")*MovingSpeed;
delta_y=Input.GetAxis("Mou Y")*MovingSpeed;
rotation=Quaternion.Euler(ation.eulerAngles.y,0);
transform.position=rotation*new Vector3(-delta_x,-delta_y,0)+transform.position;
}
//缩放
if(Input.GetAxis("Mou ScrollWheel")!=0)
{
delta_z=-Input.GetAxis("Mou ScrollWheel")*ZoomSpeed;
transform.Translate(0,0,-delta_z);
//distance+=delta_z;
}
//记录⿏标实时移动的点
mouPos2 = uPosition;
//旋转中⼼为⾃⾝（相机）
if(Input.GetMouButton(1))
{
delta_rotation_x=Input.GetAxis("Mou X")*RotateSpeed;
delta_rotation_y=-Input.GetAxis("Mou Y")*RotateSpeed;
ation*new Vector3(0,0,distance)+transform.position;
polytron transform.Rotate(0,delta_rotation_x,0,Space.World);
transform.Rotate(delta_rotation_y,0,0);
transform.ation*new Vector3(0,0,-distance)+position;
}
believe什么意思
}
void OnGUI()
{
//⿏标左键
if (Input.GetMouButton(0))
{
mouPos1 = uPosition; //记录⿏标点击瞬间的点
Vector3 offt = mouPos1 - mouPos2; //记录⿏标移动的距离灵修培训班
//上下与左右旋转分开，绝对值⽐较
if (Mathf.Abs(offt.x) > Mathf.Abs(offt.y))
{
//以物体上⽅为旋转轴（Vector3.up == new Vector3(0, 1.0f, 0)），物体左右旋转⾓度与⿏标横向移动距离相关，变化速率2f
transform.RotateAround(new Vector3(0, 0, 0), Vector3.up, Time.deltaTime * offt.x * 2f);
// transform.RotateAround(rotateCenter.localPosition, Vector3.up, Time.deltaTime * offt.x * 2f); //旋转中⼼为⽬标物体rotateCenter }
el
{
//以世界坐标右⽅为旋转轴（transform.right，是会变化的量），物体上下旋转⾓度与⿏标纵向移动距离相关，变化速率2f
transform.RotateAround(new Vector3(0, 0, 0), transform.right, -Time.deltaTime * offt.y * 2f);//旋转中⼼为世界
// transform.RotateAround(rotateCenter.localPosition, transform.right, -Time.deltaTime * offt.y * 2f);//旋转中⼼为⽬标物体rotateCenter
}
//打印数据transform.right变量
Debug.Log("pos: " + transform.right);
}
////⿏标中键，物体恢复原来的⾓度与位置
// if (Input.GetMouButton(2))
/
/ {
// ation = start_qua;
// transform.position = start_pos;corporation是什么意思
// }
////⿏标中键滑动，物体缩放，摄像头前后移动距离范围在2f~5f，变化速率3f
// if (Input.GetAxis("Mou ScrollWheel") > 0f && Vector3.Distance(transform.position, new Vector3(0, 0, 0)) > 2f)
// {
// transform.Translate(Vector3.forward * Time.deltaTime * Input.GetAxis("Mou ScrollWheel") * 5f);
// }
// if (Input.GetAxis("Mou ScrollWheel") < 0f && Vector3.Distance(transform.position, new Vector3(0, 0, 0)) <5f)
// {
// transform.Translate(Vector3.back * Time.deltaTime * (-Input.GetAxis("Mou ScrollWheel")) * 5f);beard
//}//
}
}
