Framerate independent damping, Godot Edition

maths.gd

class_name Maths

# For more information on why this is so important, see the link below:
# See https://www.rorydriscoll.com/2016/03/07/frame-rate-independent-damping-using-lerp/

static func smooth_to(from: float, to: float, speed: float, dt: float) -> float:
	return lerpf(from, to, 1 - exp(-speed * dt));


static func smooth_to_vec(from: Vector3, to: Vector3, speed: float, dt: float) -> Vector3:
	return from.lerp(to, 1 - exp(-speed * dt))


static func smooth_to_quat(from: Quaternion, to: Quaternion, speed: float, dt: float) -> Quaternion:
	return from.slerp(to, 1 - exp(-speed * dt))