Check out pages 48-49. http://englishonlineclub.com/pdf/Metal%20Programming%20Guide%20-%20Comprehensive%20Tutorial%20and%20Reference%20via%20Swift%20(Rough%20C

Check out pages 48-49. http://englishonlineclub.com/pdf/Metal%20Programming%20Guide%20-%20Comprehensive%20Tutorial%20and%20Reference%20via%20Swift%20(Rough%20Cuts)%20[EnglishOnlineClub.com].pdf http://englishonlineclub.com/pdf/Metal%20Programming%20Guide...