How to take a Screenshot, Thumbnail Size

Unity Engine
1

Dear Friends:

I’ve been taking screenshots with a script that includes this:

			// Wait for the frame to finish drawing:
        yield return new WaitForEndOfFrame();
		
	    	// Create a texture the size of the screen, RGB24 format
	    float width = Screen.width;
	    float height = Screen.height;
	    Texture2D tex = new Texture2D( (int) (width), (int) (height), TextureFormat.RGB24, false );
	    	// Read screen contents into the texture
	    tex.ReadPixels( new Rect(0f, 0f, width, height), 0, 0 );
	    tex.Apply();

And that’s great, it’s working, beautiful. But I also need to have a Thumbnail size screenshot to be stored and called up as the player is in the menu of saved games.

Any ideas on how to make a small screenshot like that?

Thanks.

2

I’m interested in this question too. Did you find a solution?

3

I haven’t tried it, but I see from the doc:
Texture2D.Resize

4

I have just came across this old thread.
But making a thumbnail just can not be any simpler than assigning the target size at start like that:

        Camera currentCamera = Camera.main;
        int tw = 200; //thumb width
        int th = 180; //thumb height
        RenderTexture rt = new RenderTexture(tw, th, 24, RenderTextureFormat.ARGB32);
        rt.antiAliasing = 4;

        currentCamera.targetTexture = rt;

        currentCamera.Render();//

        //Create the blank texture container
        Texture2D thumb = new Texture2D(tw, th, TextureFormat.RGB24, false);

        //Assign rt as the main render texture, so everything is drawn at the higher resolution
        RenderTexture.active = rt;

        //Read the current render into the texture container, thumb
        thumb.ReadPixels(new Rect(0, 0, tw, th), 0, 0, false);

        byte[] bytes = thumb.EncodeToJPG(90);
        Object.Destroy(thumb);

        // For testing purposes, also write to a file in the project folder
        File.WriteAllBytes(Application.dataPath + "/SavedThumb.jpg", bytes);

        //--Clean up--
        RenderTexture.active = null;

        currentCamera.targetTexture = null;

        rt.DiscardContents();

No need for any rescaling.

1 Like