XMBYTEN2::XMBYTEN2(constfloat) function (directxpackedvector.h)

Initializes a new instance of XMBYTEN2 from a two-element float array argument.

This constructor initializes a new instance of XMBYTEN2 from a two-element float array argument.

Note  This constructor is only available with C++.

Syntax

noexcept XMBYTEN2(
  const float *pArray
);

Parameters

pArray

Two-element float array containing the values used to initialize the two components of a new instance of XMBYTEN2.

Return value

None

Remarks

Vector Component Array Element Range Description
x pArray[0] -1.0, 1.0 During instantiation, pArray[0] is clamped between -1 and 1, multiplied by 127.0f and assigned to x.
y pArray[1] -1.0, 1.0  During instantiation, pArray[1] is clamped between -1 and 1, multiplied by 127.0f, and then assigned to y.

The following pseudocode demonstrates the operation of this constructor:

XMBYTEN2 instance;
_x1=min( max( pArray[0], -1.0 ), 1.0 );
_y1=min( max( pArray[1], -1.0 ), 1.0 );
_x1 = round( _x1 *  127.0f);
_y1 = round( _y1 *  127.0f);
instance.x = (int8_t)_x1;
instance.y = (int8_t)_y1;

Requirements

   
Target Platform Windows
Header directxpackedvector.h

See also

XMBYTEN2

XMBYTEN2 Constructors