Packed vector type containing four 8-bit signed normalized values, ranging from −1 to 1.
Namespace: Microsoft.Xna.Framework.Graphics.PackedVector
Assembly: Microsoft.Xna.Framework (in microsoft.xna.framework.dll)
public struct NormalizedByte4 : IPackedVector<uint>, IEquatable<NormalizedByte4>
Reference
Xbox 360, Windows XP SP2, Windows Vista, Zune