Blank screen when switching camera

Questions & Answers
1

Hi all, quick problem with cameras here.

I’ve got two seats, each with a camera at the head position, with a mouselook and a raycast script attached. What is supposed to happen is when the user click on a seat, the camera switches to that one. It works fine when I start in chair1 and switch to chair2, but when i switch back to chair1 the screen goes blank grey. The statistics panel shows zero draw calls and zero tris/verts, but I can mouse the camera right and click to switch back to chair2. No problems back at chair2. Do I just need to call a re-draw function or something? Since it gets 0 draw calls I don’t think it’s just embedded in a mesh. Or am i completely wrong?

Here is the script:

using UnityEngine;
using System.Collections;

public class buttonPusher : MonoBehaviour {
    RaycastHit rayhit;
    public Collider chair1;
    public Collider chair2;
    public Camera cam1;
    public Camera cam2;

	// Use this for initialization
	void Start () {
        cam1.enabled = true;
        cam2.enabled = false;
	}
	
	// Update is called once per frame
	void Update () {
        Ray ray = camera.ScreenPointToRay(Input.mousePosition);
         cam1 = this.camera;
        if(Input.GetMouseButtonDown(0))
        {
        Physics.Raycast(ray, out rayhit);
        Debug.Log(rayhit.collider);
        if (rayhit.collider == chair1)
        {
            cam1.enabled = true;
            cam2.enabled = false;
        }
        if(rayhit.collider == chair2)
        {
            cam1.enabled = false;
            cam2.enabled = true;
        }
        }       
	}
}
2

have you checked the cameras depth? the new camera should be drawn on top of the other one. (this is if they both stay enabled). else if you don’t use the depth, check if the old camera is dissabled correctly in the editor menu. you could try setActive instead of enabled.

3

Okay, a problem came up with raycasting so I have gone with the moving the camera approach, all works lovely now! No need to answer anymore.