Display image from camera in GUI.Window

Unity Engine
1

Hello, i’ve spent much time trying to get texture from camera and place it in GUILayout.Label or GUI.DrawTexture function and i can’t find any working solution for this.

The situation is:
I have camera and script attached to GameObject (Robot).
I’m creating this objects using Instantiate function.
Each object displays it’s own window with params(speed, etc…)
Also i want to display in that window an image from Object’s camera

Here’s a part of script, attached to my GameObject “Robot”:

 public class RobotScript : MonoBehaviour {
    ///
    ***
    ///
    public Camera robotCam;
    Rect windowInfoPosition = new Rect(0, 0, 100, 100);
    static int count=0;
    int ID;
    RenderTexture renderTexture;
    Texture2D imageFromCamera = new Texture2D(400, 400);;
    ///
    ***
    ///
    void Start () {
    ID=count;
    count++;
    renderTexture = RenderTexture.GetTemporary(400, 400, 32);
    ///
    }
    
    void OnGUI()
    {
        windowInfoPosition = GUI.Window(ID, windowInfoPosition, OnWindowInfo, "Info", guiStyle);
    }
    void OnWindowInfo(int windowID)
    {
        GUILayout.BeginVertical();
        GUILayout.Label("Speed: " +  this.GetSpeed())
    
        if(GUILayout.Button("Update camera"))                  //trying to get texture
            {
                RenderTexture currentRT = RenderTexture.active;
                RenderTexture.active = renderTexture;
                 
                robotCam.targetTexture = renderTexture;
                robotCam.Render(); 
               
                imageFromCamera.ReadPixels(new Rect(0, 0, 400, 400), 0, 0);
                imageFromCamera.Apply(); 
    
                RenderTexture.active = currentRT;
            }
    
         GUILayout.Label(imageFromCamera);     //neither this
         GUILayout.Label(renderTexture);  //nor this works 
         GUILayout.EndVertical();
    }
    //////

I’m new here, and i’m confused about how it works.
I will appreciate your help. Thanks!

2

Ok, i think i’m close:

if(GUILayout.Button("ReRender"))
        {
            robotCam.Render();
        }

        GUILayout.Label(renderTexture);

i can see how renderTexture updates in inspector menu:

1613901--98243--$a1.jpg
1613901--98243--$a1.jpg559×553 27.5 KB

but!
GUILayout.Label(renderTexture); displays nothing!
Could anyone tell me please what i’m doing wrong?!