Optimize GC for PropSrc.

Assets/Cryville/Crtr/Motion.cs

@@ -928,25 +928,25 @@ namespace Cryville.Crtr {
 	public class VectorSrc : PropSrc {
 		readonly Func<Vector> _cb;
 		public VectorSrc(Func<Vector> cb) { _cb = cb; }
-		protected override unsafe void InternalGet(out int type, out byte[] value) {
+		protected override unsafe int InternalGet() {
 			var arr = _cb().ToArray();
 			if (arr.Length == 1) {
-				type = PdtInternalType.Number;
-				value = new byte[sizeof(float)];
-				fixed (byte* ptr = value) {
+				buf = new byte[sizeof(float)];
+				fixed (byte* ptr = buf) {
 					*(float*)ptr = arr[0];
 				}
+				return PdtInternalType.Number;
 			}
 			else {
-				type = PdtInternalType.Vector;
-				value = new byte[sizeof(float) * arr.Length + sizeof(int)];
-				fixed (byte* rptr = value) {
+				buf = new byte[sizeof(float) * arr.Length + sizeof(int)];
+				fixed (byte* rptr = buf) {
 					var ptr = (float*)rptr;
 					for (int i = 0; i < arr.Length; i++, ptr++) {
 						*ptr = arr[i];
 					}
 					*(int*)ptr = PdtInternalType.Number;
 				}
+				return PdtInternalType.Vector;
 			}
 		}
 	}