Unity中实现垂直角度的相机在不同分辨率下的适配

Posted 2021-05-18 Hello Bug.

一：透视相机

透视相机的视野范围是一个锥体，虽然可以控制Field of View大小去调整视野范围，但会影响画面效果，所以使用调整相机的高度的方式去适配

using UnityEngine;

/// <summary>
/// 透视相机分辨率适配(只适用于垂直角度的相机)
/// </summary>
public class CameraAdaption_perspective : MonoBehaviour
{
    [Header("初始屏幕宽度")]
    public float initWidth;
    [Header("初始屏幕高度")]
    public float initHeight;
    [Header("初始相机高度")]
    public float initCameraHeight;

    private void Awake()
    {
        float v = (initWidth / initHeight) / (Screen.width * 1f / Screen.height);
        transform.position = new Vector3(transform.position.x, initCameraHeight * v, transform.position.z);
    }
}

---

二：正交相机

using UnityEngine;

/// <summary>
/// 正交相机分辨率适配(只适用于垂直角度的相机)
/// </summary>
public class CameraAdaption_orthographic : MonoBehaviour
{
    [Header("初始屏幕宽度")]
    public float initWidth;
    [Header("初始屏幕高度")]
    public float initHeight;
    [Header("初始视野大小")]
    public float initOrthographicSize;

    private void Awake()
    {
        float v = (initWidth / initHeight) / (Screen.width * 1f / Screen.height);
        GetComponent<Camera>().orthographicSize = initOrthographicSize * v;
    }
}