XMSHORTN2::XMSHORTN2(float,float) function (directxpackedvector.h)

Article
02/22/2024

Initializes a new instance of XMSHORTN2 from two normalized float arguments.

This constructor initializes a new instance of XMSHORTN2 from two normalized float arguments.

Note This constructor is only available under C++.

Syntax

void XMSHORTN2(
  float _x,
  float _y
) noexcept;

Parameters

_x

A normalized value for the x-coordinate of the vector.

This argument should be between -1.0 and 1.0; during the instantiation of an instance of XMSHORTN2, it is multiplied by 32767.0f and then stored as the x member of the structure.

_y

A normalized value for the y-coordinate of the vector, the y of the new instance of XMSHORTN2.

This argument should be between -1.0 and 1.0; during the instantiation of an instance of XMSHORTN2, it is multiplied by 32767.0f and then stored as the y member of the structure.

Return value

None

Remarks

All input values,_x and _y are clamped to a range of -1.0 to 1.0.

The following pseudocode demonstrates the operation of this constructor:


	XMSHORTN2 instance;
	_x1=min( max( _x, -1.0 ), 1.0 );
	_y1=min( max( _y, -1.0 ), 1.0 );
	_x1 = round( _x1 * 32767.0f);
	_y1 = round( _y1 * 32767.0f);
	instance._x = _x1;
	instance._y = _y1;

Requirements

Requirement	Value
Target Platform	Windows
Header	directxpackedvector.h