XMUDEC4::XMUDEC4(float,float,float,float) function (directxpackedvector.h)
Initializes a new instance of XMUDEC4 from four float arguments.
This constructor initializes a new instance of XMUDEC4 from four
float arguments.
Syntax
void XMUDEC4(
float _x,
float _y,
float _z,
float _w
) noexcept;
Parameters
_x
Value of the x-coordinate of the vector, the x member of the new
XMUDEC4 instance.
The magnitude of this argument will be clamped to a range of [0.0, 1023.0].
_y
Value of the y-coordinate of the vector, the y member of the new
XMUDEC4 instance.
The magnitude of this argument will be clamped to a range of [0.0, 1023.0].
_z
Value of the z-coordinate of the vector, the z member of the new
XMUDEC4 instance.
The magnitude of this argument will be clamped to a range of [0.0, 1023.0].
_w
Value of the w-coordinate of the vector, the w member of the new
XMUDEC4 instance.
The magnitude of this argument will be clamped to a range of [0.0, 3.0].
Return value
None
Remarks
The following pseudocode demonstrates the operation of this constructor, which takes
advantage of the union of the four components of the XMUDEC4 vector with an instance of uint32_t in the definition of the structure:
XMUDEC4 instance;
_x1=min( max( _x, 0.0.0 ), 1023.0 );
_y1=min( max( _y, 0.0.0 ), 1023.0 );
_z1=min( max( _z, 0.0.0 ), 1023.0 );
_w1=min( max( _w, 0.0 ), 3.0 );
instance.v = ( (uint32_t)_w1 << 30) |
(((uint32_t)_z1 & 0x3FF) << 20) |
(((uint32_t)_y1 & 0x3FF) << 10) |
(((uint32_t)_x1 & 0x3FF));;
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | directxpackedvector.h |
See also
Reference