Interpolación lineal entre dos vectores.
Interpolates between the vectors a and b by the interpolant t. This is most commonly used to find a point some fraction of the way along a line between two endpoints (e.g. to move an object gradually between those points).
Cuando t = 0 devuelve a.
Cuando t = 1 devuelve b.
Cuando t = 0.5 devuelve el punto medio entre a y b.
See Also: Lerp.