Float4x4

// 4x4 Matrix; Four 4D 32-bit floating point vectors aligned to a 16-byte boundary
Align(16) struct Float4x4
{
    // Members
    union
    {
        // Swizzle; Lower three values of the vector
        struct { Float4 x; Vector3<Float4>ywz; };
        // Swizzle; Upper three values of the vector
        struct { Vector3<Float4> xyz; Float4 w; };
        // Swizzle; Middle two values of the vector
        struct { Float4 x; Vector2<Float4> yz; Float4 w; };
        // Swizzle; Upper or Lower two values of the vector
        struct { Vector2<Float4> xy; Vector2<Float4> zw; };
        // A single component of the vector
        struct { Float4 x, y, z, w; };
    };
};