The linear interpolation a + (b - a) * t: a at t = 0, b at t = 1. t is not clamped, so values outside [0, 1] extrapolate. Works on float, float64, vectors, Matrix3 (element by element) and quaternions (a plain component interpolation that is not normalized; see nlerp and slerp).
assert(lerp(10.0, 20.0, 0.25) == 12.5);
assert(lerp(10.0, 20.0, 2.0) == 30);
assert(lerp(xyz(0, 0, 0), xyz(2, 4, 6), 0.5) == xyz(1, 2, 3));lerp :: (a: float, b: float, t: float) -> floatLinear blend from a to b. Not clamped, so t outside 0..1 extrapolates.
Parameters
- a: float
- the result at
t= 0. - b: float
- the result at
t= 1. - t: float
- how far from
atowardsb.
Returns
- float
lerp :: (a: float64, b: float64, t: float64) -> float64Linear blend from a to b. Not clamped, so t outside 0..1 extrapolates.
Parameters
- a: float64
- the result at
t= 0. - b: float64
- the result at
t= 1. - t: float64
- how far from
atowardsb.
Returns
- float64
lerp :: (a: $R, b: R, t: float) -> RLinear blend from a to b for any type that supports +, - and * by a float.
Parameters
- a: $R
- the result at
t= 0. - b: R
- the result at
t= 1. - t: float
- how far from
atowardsb.
Returns
- R