XMPlaneNormalizeEst function (directxmath.h)
Estimates the coefficients of a plane so that coefficients of x, y, and z form a unit normal vector.
Syntax
XMVECTOR XM_CALLCONV XMPlaneNormalizeEst(
[in] FXMVECTOR P
) noexcept;
Parameters
[in] P
XMVECTOR describing the plane coefficients (A, B, C, D) for the plane equation Ax+By+Cz+D=0.
Return value
Returns an estimation of the normalized plane as a 4D vector whose components are the plane coefficients (A, B, C, D)
for the plane equation Ax+By+Cz+D=0.
Remarks
Est functions offer increased performance at the expense of reduced accuracy.
Est functions are appropriate for non-critical calculations where accuracy can be sacrificed for speed.
The exact amount of lost accuracy and speed increase are platform dependent.
Platform Requirements
Microsoft Visual Studio 2010 or Microsoft Visual Studio 2012 with the Windows SDK for Windows 8. Supported for Win32 desktop apps, Windows Store apps, and Windows Phone 8 apps.Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | directxmath.h |