Function directx_math::XMPlaneDot

pub fn XMPlaneDot(P: FXMVECTOR, V: FXMVECTOR) -> XMVECTOR

Calculates the dot product between an input plane and a 4D vector.

Parameters

P XMVECTOR describing the plane coefficients (A, B, C, D) for the plane equation Ax+By+Cz+D=0.

V 4D vector to use in the dot product.

Return value

Returns the dot product of P and V replicated into each of the four components of the returned XMVECTOR.

Remarks

The XMPlaneDot function is useful for determining the plane's relationship with a homogeneous coordinate. For example, this function can be used to determine if a particular coordinate is on a particular plane, or on which side of a particular plane a particular coordinate lies.

Reference

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