XMFLOAT3SE::XMFLOAT3SE(constfloat*) function (directxpackedvector.h)
Initializes a new instance of XMFLOAT3SE from a three element float array argument.
This constructor initializes a new instance of XMFLOAT3SE from a from a three element float array argument.
Syntax
void XMFLOAT3SE(
const float *pArray
) noexcept;
Parameters
pArray
Three element floating point array containing the values used to initialize the three components of a new instance of XMFLOAT3SE.
Return value
None
Remarks
Values contained in pArray[0], pArray[1] and pArray[2] are stored, respectively, in the x-component, the y-component, and the z-component of the new instance of XMFLOAT3SE.
The values obtained from the members of pArray are transformed from the standard 32 bit floating point format (sign bit, 8 bit exponent, 23 bit mantissa), and stored as a 14 bit floating point format (5 bit exponent, 9 bit mantissa).
As no target formats do not support a sign bit, all member of pArray must be greater than zero.
Because of the change in floating point format during the instantiation of an instance of XMFLOAT3SE by this constructor, some loss of precision can be expected.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | directxpackedvector.h |