void GenerateFunction(CurveKeyframe a, CurveKeyframe b)
{
var key = new Vector2(a.Time, b.Time);
if (beziers.ContainsKey(key))
{
return;
}
float p1y = AlchemyEasing.Ease(EasingTypes.Linear, b.InTangent, a.Value, b.Value, 0, 1);
float p2y = AlchemyEasing.Ease(EasingTypes.Linear, a.OutTangent, a.Value, b.Value, 0, 1);
beziers.Add(key, CubicBezier.Bezier(0.5, p1y, 0.5, 1 - p2y));
}