i want to draw a square line at the edge of the screen

Unity Engine
1

i want to draw a square line the four sides of the screen :left ,right ,top, border in my game.please help me how to do this.

2

Create a GUI style with a simple box image, then use that style in a GUI.Box draw in OnGUI,
or use GL.LINES,
or create a 3D plane and give it an appropriate texture a transparent shader (this will be difficult to get consistent results from).

3

You would want to draw only the lines themselves; methods like a single GUI.Box covering the screen or a plane with a texture will cause fillrate issues, since 99% of the pixels would be transparent, but the graphics card still has to draw them all.

–Eric

4

You should use Screen.height and Screen.width for calculations. The example for the right edge (1px line):

GUI.Box(Rect(Screen.width - 1, 0, 1, Screen.height), "", myStyle);

You should create a custom style in your skin and reference it by name, and keep the reference inside myStyle variable. And yes, your style background should be a single-colored image.

5

ok i try it