XMHALF4::XMHALF4(float,float,float,float) function (directxpackedvector.h)

Article
02/22/2024

Initializes a new instance of XMHALF4 from four float arguments.

This constructor initializes a new instance of XMHALF4 from four float arguments.

Note This constructor is only available under C++.

Syntax

void XMHALF4(
  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 XMHALF4 instance.

_y

Value of the y-coordinate of the vector, the y member of the new XMHALF4 instance.

_z

Value of the z-coordinate of the vector, the z member of the new XMHALF4 instance.

_w

Value of the w-coordinate of the vector, the w member of the new XMHALF4 instance.

Return value

None

Remarks

If the magnitude of one of this constructor's floating point arguments cannot be represented by the HALF type, the corresponding member of the new instance of XMHALF4 will be infinity for a 16-bit integer (+0x7FFF).

The following pseudocode demonstrates the operation of this constructor using the XNA Math XMConvertFloatToHalf function:


	XMHALF4 instance;

	instance.x = XMConvertFloatToHalf(_x);
	instance.y = XMConvertFloatToHalf(_y);
	instance.z = XMConvertFloatToHalf(_z);
	instance.w = XMConvertFloatToHalf(_w);

Requirements

Requirement	Value
Target Platform	Windows
Header	directxpackedvector.h