Function XMPlaneNormalizeEst

pub fn XMPlaneNormalizeEst(P: FXMVECTOR) -> XMVECTOR

Estimates the coefficients of a plane so that coefficients of x, y, and z form a unit normal vector.

Parameters

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.

Reference

https://docs.microsoft.com/en-us/windows/win32/api/directxmath/nf-directxmath-XMPlaneNormalizeEst