Optimize GC for frame calculation.

Assets/Cryville/Crtr/NoteHandler.cs

@@ -50,6 +50,7 @@ namespace Cryville.Crtr {
 
 		public override void PreInit() {
 			base.PreInit();
+			coeffs = new ColumnVector<float>(gh.TrackCount);
 			foreach (var j in Event.judges) {
 				judges.Add(j, new JudgeState(this, j.Id.Key));
 			}
@@ -132,6 +133,7 @@ namespace Cryville.Crtr {
 		}
 
 		readonly List<Vector3> ctrl = new List<Vector3>(2);
+		ColumnVector<float> coeffs;
 		Vector3 GetFrame(ContainerState state, float track, Func<ContainerState, Vector3> func) {
 			// TODO
 			int id = Mathf.FloorToInt(track);
@@ -160,12 +162,8 @@ namespace Cryville.Crtr {
 				}
 				if (ctrl.Count == 0) {
 					var frame = gh.GetCurrentFrame(func);
-					return frame.Dot(
-						ColumnVector<float>.WithPolynomialCoefficients(
-							frame.Size, track
-						),
-						Vector3Operator.Instance
-					);
+					ColumnVector<float>.FillWithPolynomialCoefficients(coeffs, track);
+					return frame.Dot(coeffs, Vector3Operator.Instance);
 				}
 				else if (ctrl.Count == 1) {
 					return nt * (nt * p1 + t * (ctrl[0] + p1)) + t * t * p2;