7 channel multiprojection
  • okami
    junior Member
    Posts: 2
    Joined: Fri Oct 28, 2005 11:44 pm

    7 channel multiprojection

    by okami » Fri Apr 04, 2008 11:53 am

    After reading almost every post about multiprojection i still have some questions, or maybe better, some experience tips are wanted. I'm looking for a powerful tool which is able to handle high resolution with 4-6 Projections. Here is my setup and the question related to it:

    This is my setup:
    1 x 2,6 Ghz quad MacPro - 3 GB
    4 graphic cards
    internal SATA Harddrive
    6 Projectors
    1 Controllmonitor

    As i read here, the best way to manage more projections in modul8 is, to render one large movie and split it do the 6 projectors.
    So far, no problem....
    but. it should be 720p resolution, or at least 1024x768 per projector.
    That gives me in the second case a movie with 6144x768 pixels.

    1. is it ok to render one movie with all the material in one row? --> 6144 width or is it better trying to arrange the 6 channels on one canvas, like 3072x1536 ?
    2. my major problem is, that this movie should be around 6 hours for an art live performance....

    has anybody some tips and experience with such a long projections with 6 channels....

    i built a 6144x768 pixels test movie about 30 sec. with photo jpg compressor at max quality, giving me a 2,4gb file wich wasn't loaded in, after about 10 min.. so i gave up at the moment.

    I'm appreciate every kind of experience tips, or also some tips for other systems if modul8 can't handle this...

    thank you very much
  • User avatar
    activ8 member
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    Joined: Wed Mar 05, 2008 8:45 pm
    Location: Delft | Netherlands

    by wygiwys » Fri Apr 04, 2008 5:18 pm

    Maybe h.264 would be a better codec, as you just play it (no scratching, or weird stuff) and it will be smaller. It will cost more cpu power though.
    Further I haven't got any experience with multi projection things, sorry.
    What You Get Is What You See
  • videomasta
    Posts: 24
    Joined: Thu Apr 05, 2007 5:35 pm

    by videomasta » Fri Apr 04, 2008 6:55 pm

    i think its not possible to play smooth high quality movies at this size.
    you have hiccup and jitter with a single pal movie(res:768x576) playing with macbook pro dualcore 2.3 GHz (fotojpg75%)
    if your tagret framerate is not the crucial point, you can give modul8 a try. it is more a app for fast vj clips.
  • vjrei
    Posts: 16
    Joined: Fri Aug 11, 2006 9:58 pm

    by vjrei » Sat Jul 12, 2008 11:01 pm

    Modul8 can handle big files but that doesn't mean your system can. You will need a ride array of disk to output such files.
  • User avatar
    Posts: 402
    Joined: Sun Dec 17, 2006 10:54 am
    Location: London UK

    by deepvisual » Mon Jul 14, 2008 12:27 am

    pixel for pixel at that size is crazy.
    make you content at least 50% of the final size and upscale it.
    you'll find the antialias works fine.
  • RickRobiN
    activ8 member
    Posts: 51
    Joined: Wed Nov 01, 2006 5:12 pm
    Location: amsterdam

    by RickRobiN » Sun Jul 20, 2008 6:17 pm

    Try the Apple Intermediate Codec (AIC)


    And use a software Raid0 and you will be fine
    cheers RR
  • mowgli_uk
    Posts: 464
    Joined: Tue Nov 15, 2005 10:43 pm
    Location: LONDON

    by mowgli_uk » Mon Jul 28, 2008 3:28 pm

    videomasta wrote:i think its not possible to play smooth high quality movies at this size.
    you have hiccup and jitter with a single pal movie(res:768x576) playing with macbook pro dualcore 2.3 GHz (fotojpg75%)

    I've played HD clips with no problems!
  • keptnahab
    Posts: 30
    Joined: Thu Apr 05, 2007 4:51 am
    Location: munich, germany

    by keptnahab » Sun Aug 03, 2008 12:45 am

    you have to use solid state disks or better raid 2 of them together !
    the harddisc access time is the botleneck of most systems.
    i would also recommend the ai codec.
    the box said windows xp or better - so i bought a mac

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