[−][src]Function directx_math::XMVector2Reflect
pub fn XMVector2Reflect(Incident: FXMVECTOR, Normal: FXMVECTOR) -> XMVECTOR
Reflects an incident 2D vector across a 2D normal vector.
Parameters
Incident
2D incident vector to reflect.
Normal
2D 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:
XMVECTOR Result;
float s = 2.0f * (Incident.x * Normal.x + Incident.y * Normal.y); // 2.0 * dot(Incident, Normal);
Result.x = Incident.x - s * Normal.x;
Result.y = Incident.y - s * Normal.y;
Result.z = undefined;
Result.w = undefined;
return Result;
Reference
https://docs.microsoft.com/en-us/windows/win32/api/directxmath/nf-directxmath-XMVector2Reflect