Legacy Documentation: Version 5.6 (Go to current version)
  • C#
  • JS

Script language

Select your preferred scripting language. All code snippets will be displayed in this language.


Suggest a change


Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.


Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.



public static function Ortho(left: float, right: float, bottom: float, top: float, zNear: float, zFar: float): Matrix4x4;
public static Matrix4x4 Ortho(float left, float right, float bottom, float top, float zNear, float zFar);


Creates an orthogonal projection matrix.

The returned matrix is such that views left to right, bottom to top area, with zNear and zFar depth clipping planes.

If you want to use orthogonal for pixel-correct rendering, it is better to use GL.LoadPixelMatrix, as that would apply proper half-texel offsets for Direct3D renderer.

See Also: GL.LoadPixelMatrix, GL.LoadProjectionMatrix, GUI.matrix.