XMBYTE4::XMBYTE4(constfloat) function (directxpackedvector.h)

Initializes a new instance of XMBYTE4 from a four element float array argument.

This constructor initializes a new instance of XMBYTE4 from a four element float array argument.

Note  This constructor is only available under C++.

Syntax

noexcept XMBYTE4(
  const float *pArray
);

Parameters

pArray

Four element float array containing the values used to initialize the four components of a new instance of XMBYTE4.

Return value

None

Remarks

The magnitude of each member of the pArray argument to the constructor will be clamped to the range supported by an 8-bit signed integer [-127.0, 127.0].

The following pseudocode demonstrates the operation of this constructor:

XMBYTE4 instance;

instance.x = (int8_t)min( max( pArray[0] -127.0 ), 127.0 );
instance.y = (int8_t)min( max( pArray[1] -127.0 ), 127.0 );
instance.z = (int8_t)min( max( pArray[2] -127.0 ), 127.0 );
instance.w = (int8_t)min( max( pArray[3] -127.0 ), 127.0 );

Requirements

   
Target Platform Windows
Header directxpackedvector.h

See also

XMBYTE4

XMBYTE4 Constructors