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Set renderCamera in renderMode 'Screen Space - Camera' from code?

Discussion in 'UGUI & TextMesh Pro' started by Rodyfish, Nov 3, 2014.

  1. Rodyfish

    Rodyfish

    Joined:
    Sep 4, 2014
    Posts:
    18
    Im trying to instantiate Canvas prefabs on running time, and I want the Canvas to have RenderMode 'Screen Space - Camera'.

    Other than that, I have a separate GuiCam (Camera) in the scene, and I want to set it as the renderCamera for the instantiated canvas. I cant seem to find a way that works for me, to do this from code.

    I'm using C#.

    Q: How do you set renderCamera on a Canvas from code? Do you have any suggestions? :)
     
    Rodyfish, Nov 3, 2014
    #1

  2. phil-Unity

    phil-Unity

    Unity UI Lead Developer Unity Technologies

    Joined:
    Nov 23, 2012
    Posts:
    1,226
    the canvas class should have a .renderMode which you can set as the Canvas.RenderMode.ScreenSpaceCamera.

    Same goes for the camera there is the worldCamera you can set.
     
    phil-Unity, Nov 3, 2014
    #2

  3. Rodyfish

    Rodyfish

    Joined:
    Sep 4, 2014
    Posts:
    18
    I doesn't work for me, and I cant find anything in the documentation local. Do I need a certain library? Im using 4.6.20b.
     
    Last edited: Nov 4, 2014
    Rodyfish, Nov 4, 2014
    #3

  4. phil-Unity

    phil-Unity

    Unity UI Lead Developer Unity Technologies

    Joined:
    Nov 23, 2012
    Posts:
    1,226
    you'll have to show a code snippet to what you're doing as both those functions on the canvas have been around since very early betas if not alpha.
     
    phil-Unity, Nov 4, 2014
    #4

  5. Rodyfish

    Rodyfish

    Joined:
    Sep 4, 2014
    Posts:
    18
    Oki I'll try. There is a good chance, that there is something fundamental I'm just not aware of. The following code is attached to the canvas I'm instantiating runtime.

    The canvas has RenderMode 'Screen Space - Camera', and I want to set the renderCamera for this canvas to cam in the code.

    But I cant find Canvas.Rendermode, og canvas.rendermode.'something'.

    Code (CSharp):
    1.  
    2. private Camera cam;
    3.  
    4.     // Use this for initialization
    5.     void Start ()
    6.     {
    7.         Canvas canvas = gameObject.GetComponent<Canvas>() ?? null;
    8.         cam = GameObject.FindGameObjectWithTag("GuiCamera").camera;
    9.         if(canvas != null)
    10.         {
    11.         // Set canvas' renderCamera to cam
    12.         }
    13.         else print ("derp!");
    14.  
    15.     }
     
    Rodyfish, Nov 4, 2014
    #5

  6. phil-Unity

    phil-Unity

    Unity UI Lead Developer Unity Technologies

    Joined:
    Nov 23, 2012
    Posts:
    1,226
    So i just copied your script into a new script in a blank project and was able to do the following with help from autocomplete.

    Code (CSharp):
    1. private Camera cam;
    2.  
    3.     // Use this for initialization
    4.     void Start()
    5.     {
    6.         Canvas canvas = gameObject.GetComponent<Canvas>();
    7.         cam = GameObject.FindGameObjectWithTag("GuiCamera").camera;
    8.         if (canvas != null)
    9.         {
    10.             canvas.renderMode = RenderMode.OverlayCamera;
    11.             canvas.worldCamera = cam;
    12.         }
    13.  
    14.     }
     
    phil-Unity, Nov 4, 2014
    #6
    SirDJCat, A_Marraff, sean244 and 2 others like this.

  7. Rodyfish

    Rodyfish

    Joined:
    Sep 4, 2014
    Posts:
    18
    Oh, I have tried the second line of yours, but didn't new I needed to do the first. Thanks for the help, Ill appreciate it!
     
    Rodyfish, Nov 4, 2014
    #7

  8. phil-Unity

    phil-Unity

    Unity UI Lead Developer Unity Technologies

    Joined:
    Nov 23, 2012
    Posts:
    1,226
    i dont know if you need to do the first or not. If you already have set the canvas in the inspector to "Screen Space - Camera" then you shouldnt need to.
     
    phil-Unity, Nov 4, 2014
    #8

  9. SirDJCat

    SirDJCat

    Joined:
    Jan 4, 2020
    Posts:
    30
    11 years later and this was still super helpful!
     
    SirDJCat, Apr 6, 2023
    #9