func Mathf_LerpAngle(a, b, t float64) (r float64) {
if r = Mathf_Repeat(b-a, 360); r > 180 {
r -= 360
}
r = unum.Clamp01(t)*r + a
return
}
func Mathf_Lerp(from, to, t float64) float64 {
return unum.Clamp01(t)*(to-from) + from
}
func Mathf_SmoothStep(from, to, t float64) float64 {
t = unum.Clamp01(t)
t = -2*t*t*t + 3*t*t
return to*t + from*(1-t)
}