iam trying toswitch between camares using keyboard keys using setactive function. but once the camera is inactive it is not active again

Questions & Answers
1

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

public class appear1 : MonoBehaviour
{
// Start is called before the first frame update
void Start()
{
Update();
}

// Update is called once per frame
void Update()
{
    if (Input.GetKeyDown("2"))
    {
        disappear();
    }

    if (Input.GetKeyDown("1"))
    {
        Appear();
    }

}

void Appear()
{
    gameObject.SetActive(true);

}

void disappear()
{
    gameObject.SetActive(false);

}

}

2

There is no need to call Update on Start since Update is called every frame. Try doing this.

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

public class appear1 : MonoBehaviour
{

public Camera cam;

// Start is called before the first frame update
void Start()
{
cam.enabled=true; //assuming that camera is active on scene load
}

// Update is called once per frame
void Update()
{
if (Input.GetKeyDown(“2”))
{
disappear();
}
if (Input.GetKeyDown(“1”))
{
Appear();
}
}
void Appear()
{
cam.enabled=true;
}
void disappear()
{
cam.enabled=false;
}
}