inDirection | The direction vector towards the surface. |
inNormal | The normal vector that defines the surface. |
Reflects a vector off the surface defined by a normal.
This method calculates a reflected vector using the following formula: v = inDirection - 2 * inNormal * dot(inDirection inNormal). The inNormal
vector defines a surface. A surface's normal is the vector that is perpendicular to
its surface. The inDirection
vector is treated as a directional arrow coming into the surface.
The returned value is a vector of equal magnitude to inDirection
but with its direction reflected.