using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class GpuCullCamera : MonoBehaviour
{
    public static GpuCullCamera inst;

    public Camera cam;

    Plane[] cameraFrustumPlanes = new Plane[6];
    [HideInInspector]
    public Vector4[] frustumPlanes = new Vector4[6];

    private void OnEnable()
    {
        inst = this;
        cam = Camera.main;
    }

    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    private void LateUpdate()
    {
        cameraFrustumPlanes = GeometryUtility.CalculateFrustumPlanes(cam);
        for (int i = 0; i < cameraFrustumPlanes.Length; i++)
        {
            Vector3 normal = -cameraFrustumPlanes[i].normal;
            frustumPlanes[i] = new Vector4(normal.x, normal.y, normal.z, -cameraFrustumPlanes[i].distance);
        }
    }
}