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Question by kordou · Apr 09, 2018 at 09:18 AM · c#fullscreenscreen size

Screen width and height problem.

hi!

I am struggling to create a full screen c# script for over a month now and finally i found a possible error and i new your help.

My game have just a Cube object (Boxcollider) that i want to scale it to full screen and a camera

so a) I read my screen size

 int w=screen.width;
 int h=screen.height;

b) i read the cubes size in pixel from the boxcollider

  mycam = GameObject.Find ("mycam").GetComponent<Camera> ();
 size = mycam.WorldToScreenPoint (GetComponent<BoxCollider> ().bounds.size);
 
  int cube_w = size.x;
  int cube_h =  size.y;

the problem I have a screen resoloution of 1280x720 : a) if i read the screen.width is about 650 and not 1280 while i press play

b) The width of the cube cube_w is near 750 while i can see the hole cube in my screen. So the cubes size should be smaller than the screen size

why is that happening ? regularly i should get a screen width 1280 and a smaller that that cube-width

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Answer by poisoned_banana · Apr 09, 2018 at 10:19 AM

Screen.width is returning the size of the game window when run in editor. Try something like this:

 // Camera depth, ignore if camera is ortopgraphic 
 float depth = Vector3.Distance(cube.position,Camera.main.transform.position);  
     
 // Screens coordinate corner location
 Vector3 upperRightScreen = Vector3(Screen.width, Screen.height, depth);
 Vector3 lowerLeftScreen = Vector3(0, 0, depth);
     
 //Corner locations in world coordinates
 Vector3 upperRight = Camera.main.ScreenToWorldPoint(upperRightScreen);
 Vector3 lowerLeft = Camera.main.ScreenToWorldPoint(lowerLeftScreen);
 
 //New cube height and width
 float cubeWidth = upperRight.x - lowerLeft.x;
 float cubeHeight = upperRight.y - lowerLeft.y;

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