XMVector3TransformNormalStream method
Transforms a stream of 3D normal vectors by a given matrix.
Syntax
XMFLOAT3* XMVector3TransformNormalStream( [out] XMFLOAT3 *pOutputStream, [in] size_t OutputStride, [in] const XMFLOAT3 *pInputStream, [in] size_t InputStride, [in] size_t VectorCount, [in] XMMATRIX M );
Parameters
- pOutputStream [out]
-
Address of the first XMFLOAT3 in the destination stream.
- OutputStride [in]
-
Stride, in bytes, between vectors in the destination stream.
- pInputStream [in]
-
Address of the first XMFLOAT3 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 XMFLOAT3 in the destination stream.
Remarks
Each vector in the input stream must be normalized.
XMVector3TransformNormalStream performs transformations using the input matrix rows 0, 1, and 2 for rotation and scaling, and ignores row 3.
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
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Use DirectX. |
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Header |
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See also