Do these Apps utilize Alti-vec?

majormattmajormatt
Posted:
in Mac Software edited January 2014
iTunes

iMovie

Stuffit



The QuakeIII engine?

Comments

  • Reply 1 of 7
    ghost_user_nameghost_user_name Posts: 22,667member
    as far as i know



    yes

    yes

    no



    in os x.
  • Reply 2 of 7
    majormattmajormatt Posts: 1,077member
    Why are my iTunes frame rates so terrible then?
  • Reply 3 of 7
    ghost_user_nameghost_user_name Posts: 22,667member
    AltiVec isn't used in the visualizer; it's used in the encoder.
  • Reply 4 of 7
    ghost_user_nameghost_user_name Posts: 22,667member
    BTW, the AltiVec optimizations for Quake III are minimal and pathetic. Graeme Devine (the key id Mac programmer) promised over and over again that the AltiVec optimizations would blow us away and make the Mac the leading Quake III platform with FPS's dusting the PC OCers.



    Yeah, right. <img src="graemlins/hmmm.gif" border="0" alt="[Hmmm]" />
  • Reply 5 of 7
    majormattmajormatt Posts: 1,077member
    Quake III code is the pinnacle of efficiency compared to how unoptomized Return to Castle Wolfenstein is, although RTCW is based on Quake III engine the frame rates are only 1/3 of Quake III.



    The PC version of RTCW has been released, the Mac release should be around christmas, btw.
  • Reply 6 of 7
    jethrojethro Posts: 34member
    [quote]Originally posted by MajorMatt:

    <strong>Why are my iTunes frame rates so terrible then?</strong><hr></blockquote>



    OS X has a hard time painting any large area with high frame rates in general, it's not just iTunes.



    Unfortunately it affects many more apps than just iTunes, try using the grabby scroll hand in an app like Illustrator to experience true horror.
  • Reply 7 of 7
    g-dogg-dog Posts: 171member
    does iMovie use altivec when rendering? I see that it does when exporting, but, I don't see much difference in rendering between my dual800 OSX.1.1 640RAm and my iMac500 256ram osx.1.1
Sign In or Register to comment.