[유니티] orthographic 카메라 줌 인/아웃,이동(영역설정), 단면효과 잘림효과 ,unity orthographic Camera section Script

 

orthographic 카메라의 nearClipPlane 값을 조절하면 단면효과를 낼 수 있다.

예)

이런식으로 효과 가능

스크립트 :

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.UI;

using UnityEngine.EventSystems;

public class Lv3_Cam : MonoBehaviour

{

    

    public Slider m_slider; //nearClipPlane값을 조절하여 단면표현을 구현한다.

    public Transform Target; //단면을 볼 타켓 오브젝트

    Camera mainCam;

    float rotX;

    public float sensitivityX;

    public float sensitivityY;

    public Vector3 CamCenter;

    [Header("카메라 영역 설정")]

    float minX;

    float minY;

    float maxX;

    float maxY;

    

    float vertExtent;

    float horzExtent;

    // Start is called before the first frame update

    void Start()

    {

        mainCam = Camera.main;

        m_slider.onValueChanged.AddListener(delegate { Zoom_TP(m_slider.value); });

        SetBound();

    }

    public void SetBound()

    {

        float vertExtent = mainCam.orthographicSize;

        float horzExtent = vertExtent * Screen.width / Screen.height;

        float verticalHeightSeen = Camera.main.orthographicSize * 2.0f;

        // Calculations assume map is position at the origin

        minX = horzExtent - (verticalHeightSeen * Camera.main.aspect);

        maxX = (verticalHeightSeen * Camera.main.aspect) - horzExtent;

        minY = vertExtent - verticalHeightSeen;

        maxY = verticalHeightSeen - vertExtent;

    }

    public float RotationSpeed = 5;

    public void Zoom_TP(float value)

    {

        mainCam.nearClipPlane = value;

    }

    // Update is called once per frame

    void Update()

    {

        ///UI 눌럿을때는 이동기능 하지 않게

        if (isPointerOverUIObject(Input.mousePosition))

            return;

        #region 타겟 오브젝트 이동기능

        if (Input.GetMouseButton(2))

        {

            rotX = Input.GetAxis("Mouse X") * RotationSpeed * Mathf.Deg2Rad * mainCam.orthographicSize;

            Target.RotateAround(Vector3.up, -rotX);

        }

        if (Input.GetAxis("Mouse ScrollWheel") != 0)

        {

            mainCam.orthographicSize -= Input.GetAxis("Mouse ScrollWheel");

            

            Setcenter();

        }

        ///움직일수 있는 영역을 설정(정확하지는 않음)

        if (Input.GetMouseButton(0))

        {

            float verticalHeightSeen = Camera.main.orthographicSize * 2.0f;

            if (mainCam.transform.position.x < minX)

            {

                mainCam.transform.position = new Vector3(minX, mainCam.transform.position.y, mainCam.transform.position.z);

                return;

            }

            if (mainCam.transform.position.x > maxX)

            {

                mainCam.transform.position = new Vector3(maxX, mainCam.transform.position.y, mainCam.transform.position.z);

                return;

            }

            if (mainCam.transform.position.y < minY)

            {

                mainCam.transform.position = new Vector3(mainCam.transform.position.x, minY, mainCam.transform.position.z);

                return;

            }

            if (mainCam.transform.position.y > maxY)

            {

                mainCam.transform.position = new Vector3(mainCam.transform.position.x, maxY, mainCam.transform.position.z);

                return;

            }

            //if (mainCam.transform.position.x > minX)

            //    mainCam.transform.position = new Vector3(minX, mainCam.transform.position.y, mainCam.transform.position.z);

            mainCam.transform.position -= mainCam.transform.right * Input.GetAxis("Mouse X") * sensitivityX * mainCam.orthographicSize;

            mainCam.transform.position -= mainCam.transform.up * Input.GetAxis("Mouse Y") * sensitivityY * mainCam.orthographicSize;

        }

        #endregion

     

    }

    /// <summary>

    /// 줌인을 할때마다 영역의 크기가 달라지므로 센터값을 변경해준다.

    /// </summary>

    void Setcenter()

    {

        CamCenter = mainCam.transform.position;

    }

    //Mouse가 UI 위에 있는지 확인하기위한 함수

    public bool isPointerOverUIObject(Vector2 touchPos)

    {

        PointerEventData eventDataCurrentPosition

            = new PointerEventData(EventSystem.current);

        eventDataCurrentPosition.position = touchPos;

        List<RaycastResult> results = new List<RaycastResult>();

        EventSystem.current.RaycastAll(eventDataCurrentPosition, results);

        return results.Count > 0;

    }

    //void OnDrawGizmos()

    //{

    //    float verticalHeightSeen = Camera.main.orthographicSize * 2.0f;

    //    Gizmos.color = Color.cyan;

    //    Debug.Log("xSize: " + (verticalHeightSeen * Camera.main.aspect));

    //    Debug.Log("ySize: " + (verticalHeightSeen));

    //    Gizmos.DrawWireCube(transform.position, new Vector3((verticalHeightSeen * Camera.main.aspect), verticalHeightSeen, 0));

    //}

}