Linearly interpolates between two vectors.

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).

When `t`

= 0 returns `a`

.
When `t`

= 1 returns `b`

.
When `t`

= 0.5 returns the point midway between `a`

and `b`

.

See Also: Lerp.