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UID title description helpviewer_keywords old-location tech.root ms.assetid ms.date ms.keywords req.header req.include-header req.target-type req.target-min-winverclnt req.target-min-winversvr req.kmdf-ver req.umdf-ver req.ddi-compliance req.unicode-ansi req.idl req.max-support req.namespace req.assembly req.type-library req.lib req.dll req.irql targetos req.typenames req.redist ms.custom f1_keywords dev_langs topic_type api_type api_location api_name
NF:directxpackedvector.XMU555.XMU555(uint8_t,uint8_t,uint8_t,bool)
XMU555::XMU555(uint8_t,uint8_t,uint8_t,bool) (directxpackedvector.h)
Initializes a new instance of XMU555 from three int8_t and one bool arguments.
XMU555
XMU555 constructor [DirectX Math Support APIs]
XMU555 constructor [DirectX Math Support APIs]
XMU555 structure
XMU555 structure [DirectX Math Support APIs]
XMU555 constructor
XMU555.XMU555
XMU555.XMU555()
XMU555.XMU555(uint8_t
uint8_t
uint8_t
bool)
XMU555::XMU555
XMU555::XMU555(uint8_t
uint8_t
uint8_t
bool)
dxmath.xmu555_ctor_1
dxmath
0895544c-7381-419d-9928-3ac3baa80920
05/06/2019
XMU555, XMU555 constructor [DirectX Math Support APIs], XMU555 constructor [DirectX Math Support APIs],XMU555 structure, XMU555 structure [DirectX Math Support APIs],XMU555 constructor, XMU555.XMU555, XMU555.XMU555(), XMU555.XMU555(uint8_t,uint8_t,uint8_t,bool), XMU555::XMU555, XMU555::XMU555(uint8_t,uint8_t,uint8_t,bool), dxmath.xmu555_ctor_1
directxpackedvector.h
Windows
DirectX::PackedVector
Windows
19H1
XMU555::XMU555
directxpackedvector/XMU555::XMU555
c++
APIRef
kbSyntax
COM
DirectXPackedVector.h
XMU555.XMU555

XMU555::XMU555(uint8_t,uint8_t,uint8_t,bool)

-description

Initializes a new instance of XMU555 from three int8_t and one bool arguments.

This constructor initializes a new instance of XMU555 from three int8_t (specifying x-, y-, and z-components) and one bool (specifying a w-component) arguments.

Note  This is only available for C++ based development.

-parameters

-param _x

Value of the x-coordinate of the vector, the x member of the new XMU555 instance.

The magnitude of this argument will be clamped to a range of [0, 31].

-param _y

Value of the y-coordinate of the vector, the y member of the new XMU555 instance.

The magnitude of this argument will be clamped to a range of [0, 31].

-param _z

Value of the z-coordinate of the vector, the z member of the new XMU555 instance.

The magnitude of this argument will be clamped to a range of [0, 31].

-param _w

Value of the w-coordinate of the vector, the <wdcml:mark type="member">w</wdcml:mark> member of the new XMU555 instance.

The magnitude of this argument will be clamped to a range of [0, 1].

-remarks

The following pseudocode demonstrates the operation of this constructor, which takes advantage of the union of the four components of the XMU555 vector with an instance of uint16_t in the definition of the structure:

XMU555 instance;
_x1=min( max( _x, 0 ), 31 );
_y1=min( max( _y, 0 ), 31 );
_z1=min( max( _z, 0 ), 31 );
_w1=min( max( _w, 0 ), 1 );

instance.v =  (((uint16_t)_w1) ? 0x8000 : 0) |
              (((uint16_t)_z1 & 0x1F) << 10) |
              (((uint16_t)_y1 & 0x1F) << 5) |
              (((uint16_t)_x1 & 0x1F));

-see-also

XMU555

XMU555 Constructors