Function XMVector4Reflect

pub fn XMVector4Reflect(Incident: FXMVECTOR, Normal: FXMVECTOR) -> XMVECTOR

Reflects an incident 4D vector across a 4D normal vector.

Parameters

Incident 4D incident vector to reflect.

Normal 4D normal vector to reflect the incident vector across.

Return value

Returns the reflected incident angle.

Remarks

The following pseudocode demonstrates the operation of the function:

MVECTOR Result;

float s = 2.0f * dot(Incident, Normal);

Result.x = Incident.x - s * Normal.x;
Result.y = Incident.y - s * Normal.y;
Result.z = Incident.z - s * Normal.z;
Result.w = Incident.w - s * Normal.w;

return Result;

Reference

https://docs.microsoft.com/en-us/windows/win32/api/directxmath/nf-directxmath-XMVector4Reflect