XMStoreFloat3SE function (directxpackedvector.h)

Article
02/22/2024

Syntax

void XM_CALLCONV XMStoreFloat3SE(
  [out] XMFLOAT3SE *pDestination,
  [in]  FXMVECTOR  V
) noexcept;

Parameters

[out] pDestination

Address at which to store the data.

[in] V

Vector containing the data to store.

Return value

None.

Remarks

The following pseudocode demonstrates the operation of the function.


  XMVECTOR N;

  static const XMVECTOR  Max = { 65472.f, 65427.f, 65427.f, 0 };
  N = XMVectorClamp(V, XMVectorZero(), Max);

  uint32_t m[3], e[3];
  ConvertToFloat14( N.x, &m[0], &e[0]);
  ConvertToFloat14( N.y, &m[1], &e[1]);
  ConvertToFloat14( N.z, &m[2], &e[2]);

  uint32_t T = XMMax( e[0], XMMax( e[1], e[2] ) );

  pDestination->xm = m[0] >> (T - e[0]);
  PDestination->ym = m[1] >> (T - e[1]);
  pDestination->zm = m[2] >> (T - e[2]);
  pDestination->e = T;

If the three components are not close to each other in magnitude, the largest value(s) will set the exponent and the other components will be shifted to zero.

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	directxpackedvector.h (include DirectXPackedVector.h)

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