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Matrix.CreateOrthographic Method (Single, Single, Single, Single, Matrix%)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Builds an orthogonal projection matrix.

Namespace:  Microsoft.Xna.Framework
Assembly:  Microsoft.Xna.Framework.Math (in Microsoft.Xna.Framework.Math.dll)

Syntax

'Declaration
Public Shared Sub CreateOrthographic ( _
    width As Single, _
    height As Single, _
    zNearPlane As Single, _
    zFarPlane As Single, _
    <OutAttribute> ByRef result As Matrix _
)

public static void CreateOrthographic(
    float width,
    float height,
    float zNearPlane,
    float zFarPlane,
    out Matrix result
)

Parameters

  • zNearPlane
    Type: System.Single
    Minimum z-value of the view volume.
  • zFarPlane
    Type: System.Single
    Maximum z-value of the view volume.

Remarks

Projection space refers to the space after applying projection transformation from view space. After the projection transformation, visible content has x and y coordinates ranging from -1 to 1, and z coordinates ranging from 0 to 1.

Unlike perspective projection, in orthographic projection there is no perspective foreshortening.

The viewable area of this orthographic projection is centered on 0,0,0. The x-axis of the area ranges from -width/2 to width/2. The y-axis of the area ranges from -height/2 to height/2. The z-axis of the area ranges from zNearPlane to zFarPlane. These values are relative to the position and x, y, and z-axes of the view.

To obtain the viewable area (in world space) of a scene, create a BoundingFrustum and pass the combined view and projection matrix to the constructor.

Version Information

Silverlight

Supported in: 5

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.