XMMatrixPerspectiveFovRH function

Builds a right-handed perspective projection matrix based on a field of view.

Syntax

XMMATRIX XM_CALLCONV XMMatrixPerspectiveFovRH(
  float FovAngleY,
  float AspectRatio,
  float NearZ,
  float FarZ
);

Parameters

FovAngleY

Top-down field-of-view angle in radians.

AspectRatio

Aspect ratio of view-space X:Y.

NearZ

Distance to the near clipping plane. Must be greater than zero.

FarZ

Distance to the far clipping plane. Must be greater than zero.

Return Value

Returns the perspective projection matrix.

Remarks

For typical usage, NearZ is less than FarZ. However, if you flip these values so FarZ is less than NearZ, the result is an inverted z buffer which can provide increased floating-point precision. NearZ and FarZ cannot be the same value.

Platform Requirements

Microsoft Visual Studio 2010 or Microsoft Visual Studio 2012 with the Windows SDK for Windows 8. Supported for Win32 desktop apps, Windows Store apps, and Windows Phone 8 apps.

Requirements

   
Target Platform Windows
Header directxmath.h

See Also

DirectXMath Library Matrix Functions

XMMatrixPerspectiveFovLH