Function XMPlaneNormalize

pub fn XMPlaneNormalize(P: FXMVECTOR) -> XMVECTOR

Normalizes 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 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

The following pseudocode demonstrates the operation of the function:

XMVECTOR Result;

float LengthSq = P.x * P.x + P.y * P.y + P.z * P.z;

float ReciprocalLength = 1.0f / sqrt(LengthSq);
Result.x = P.x * ReciprocalLength;
Result.y = P.y * ReciprocalLength;
Result.z = P.z * ReciprocalLength;
Result.w = P.w * ReciprocalLength;

return Result;

Reference

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