func (uintComponent) PutVec4(b []byte, v [4]uint32) {
    binary.LittleEndian.PutUint32(b, v[0])
    binary.LittleEndian.PutUint32(b[4:], v[1])
    binary.LittleEndian.PutUint32(b[8:], v[2])
    binary.LittleEndian.PutUint32(b[12:], v[3])