XMVector3TransformStream function (directxmath.h)

Article
07/12/2022

Transforms a stream of 3D vectors by a given matrix.

Syntax

XMFLOAT4 *XM_CALLCONV XMVector3TransformStream(
  [out] XMFLOAT4       *pOutputStream,
  [in]  size_t         OutputStride,
  [in]  const XMFLOAT3 *pInputStream,
  [in]  size_t         InputStride,
  [in]  size_t         VectorCount,
  [in]  FXMMATRIX      M
) noexcept;

Parameters

[out] pOutputStream

Address of the first XMFLOAT4 in the destination stream.

[in] OutputStride

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

[in] pInputStream

Address of the first XMFLOAT3 in the stream to be transformed.

[in] InputStride

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

[in] VectorCount

Number of vectors to transform.

[in] M

Transformation matrix.

Return value

Returns the address of the first XMFLOAT4 in the destination stream.

Remarks

XMVector3TransformStream ignores the w component of the input vector, and uses a value of 1.0 instead. The w component of the returned vectors may be non-homogeneous (!= 1.0).

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

Requirement	Value
Target Platform	Windows
Header	directxmath.h (include DirectXMath.h)

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