alpha video videoplanes


    Feb 15 2006 | 9:46 am
    Hello everybody,
    I'm a student of the Art Academy of Rotterdam and my max teacher run away to Iceland ore something. This is the reason to ask some help over here :-)
    Last year I build a audiovisual playtoy: http://www.beatnologic.com/site/content.php?id=250 Some video's keyed over a background image.
    Now I want to do the same but then with openGl videoplanes. Everything work fine exept the alpha stuff.
    I don't know what I'n doing wrong. Is it posible to do something linke this, http://www.beatnologic.com/site/content.php?id=283 but then with alpha video's?
    Does anybody, maybe has a example patch and a demo mov with alpha channel?
    Thanks! Jonas

    • Feb 15 2006 | 12:24 pm
      So you have the people against a green screen or do you have the videos alpha keyed already?
      You can a a alpha key very easy when you do something using the first input of a jit.pack and splitting the channels up first with a jit.unpack.
      I don't have acces to max to create a patch for you but this tip will point you in a right direction.
    • Feb 15 2006 | 4:45 pm
      make sure you have @blend_enable 1 attribute in your video plane as well :)
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