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
void XMBYTEN2(
const float *pArray
) noexcept;
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
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | directxpackedvector.h |