GeometryUtility.CalculateFrustumPlanes

描述

计算视锥体平面。

This function takes given camera's view frustum and returns six planes that form it.

排序：[0] = 左、[1] = 右、[2] = 下、[3] = 上、[4] = 近、[5] = 远

另请参阅：Plane、GeometryUtility.TestPlanesAABB。

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    private Camera cam;
    private Plane[] planes;
    void Start() {
        cam = Camera.main;
        planes = GeometryUtility.CalculateFrustumPlanes(cam);
        int i = 0;
        while (i < planes.Length) {
            GameObject p = GameObject.CreatePrimitive(PrimitiveType.Plane);
            p.name = "Plane " + i.ToString();
            p.transform.position = -planes[i].normal * planes[i].distance;
            p.transform.rotation = Quaternion.FromToRotation(Vector3.up, planes[i].normal);
            i++;
        }
    }
}

描述

计算视锥体平面。

This function returns six planes of a frustum defined by given view & projection matrix.

另请参阅：Plane、GeometryUtility.TestPlanesAABB。