Windows Dev Center

XMVector2TransformNormalStream method

Transforms a stream of 2D normal vectors by a given matrix.

Syntax


XMFLOAT2* XMVector2TransformNormalStream(
  [out]       XMFLOAT2 *pOutputStream,
  [in]        size_t   OutputStride,
  [in]  const XMFLOAT2 *pInputStream,
  [in]        size_t   InputStride,
  [in]        size_t   VectorCount,
  [in]        XMMATRIX M
);

Parameters

pOutputStream [out]

Address of the first XMFLOAT2 in the destination stream.

OutputStride [in]

Stride, in bytes, between vectors in the destination stream.

pInputStream [in]

Address of the first XMFLOAT2 in the stream to be transformed.

InputStride [in]

Stride, in bytes, between vectors in the input stream.

VectorCount [in]

Number of vectors to transform.

M [in]

Transformation matrix.

Return value

Returns the address of the first XMFLOAT2 in the destination stream.

Remarks

Each vector in the input stream must be normalized.

XMVector2TransformNormalStream uses row 0 and 1 of the input transformation matrix for rotation and scaling. Rows 2 and 3 are ignored.

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

Namespace

Use DirectX.

Header

DirectXMath.h

See also

XMVector2TransformNormal

 

 

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