Camera.orthographicSize

描述

相机在正交模式下的半尺寸。

orthographicSize 属性定义了正交摄像机的视景体积。要编辑orthographicSize，必须将摄像机投影设置为正交。

视景体积的高度为（orthographicSize * 2）。Unity 使用orthographicSize和摄像机的纵横比计算视景体积的宽度。

如果摄像机不是正交的，Unity 将忽略orthographicSize。请改用fieldOfView。

其他资源：摄像机组件。

using UnityEngine;

public class Example : MonoBehaviour
{
    //Assign this Camera in the Inspector
    public Camera m_OrthographicCamera;
    //These are the positions and dimensions of the Camera view in the Game view
    float m_ViewPositionX, m_ViewPositionY, m_ViewWidth, m_ViewHeight;

    void Start()
    {
        // This sets the Camera view rectangle to be in the bottom corner of the screen
        m_ViewPositionX = 0;
        m_ViewPositionY = 0;

        // This sets the Camera view rectangle to be smaller so you can compare the orthographic view of this Camera with the perspective view of the Main Camera
        m_ViewWidth = 0.4f;
        m_ViewHeight = 0.4f;

        // This enables the Camera (the one that is orthographic)
        m_OrthographicCamera.enabled = true;

        // If the Camera exists in the inspector, enable orthographic mode and change the size
        if (m_OrthographicCamera)
        {
            // This enables the orthographic mode
            m_OrthographicCamera.orthographic = true;

            // Set the size of the viewing volume you'd like the orthographic Camera to pick up
            m_OrthographicCamera.orthographicSize = 5.0f;

            // Set the orthographic Camera Viewport size and position
            m_OrthographicCamera.rect = new Rect(m_ViewPositionX, m_ViewPositionY, m_ViewWidth, m_ViewHeight);
        }
    }
}