Live object distortion


    Mar 21 2006 | 2:08 am
    Hi List,
    I was wondering if is there a way to link X / Y values from a motion tracking could be applied to distort the shape of and object, like sending info to 3D max or Maya to distort. Or perhaps if its possible to affect the geometry of a object in openGL.
    if it is, is it possible to do real time?
    Thanks so much!!
    tbird

    • Mar 21 2006 | 2:23 am
      On Mar 20, 2006, at 8:08 PM, Bird wrote:
      > I was wondering if is there a way to link X / Y values from a
      > motion tracking could be applied to distort the shape of and
      > object, like sending info to 3D max or Maya to distort. Or perhaps
      > if its possible to affect the geometry of a object in openGL.
      You mean like making a donut throb in time to those techno
      beats? Andrew Benson regaled our last Max/MSP/Jitter
      workshop with this bit of Really Unique Image Processing.
      Perhaps by distributing it, more people will decide to do
      something else. Please.
      See that scale message? There are other messages that
      can be sent to the jit.gl.gridshape object. perhaps you
      might wish to look at some other ones on the reference
      page. For the rest, it's a matter of putting the image following
      output where peakamp~ is.
      gregory
      max v2;
    • Mar 21 2006 | 2:40 am
      thank you for that most happy of toroids, Gregory. here's a variation
      on a theme, i'll count it as "something else".
      -mark
      max v2;
    • Mar 21 2006 | 2:42 am
      Thanks for your reply Gregory,
      I was thinking to have perspective distortions of a room for example (square shape), related to X and Y values from a motion track. Like if you change vanishing points in a perspective drawing.
      Cheers man
      tbird
    • Mar 21 2006 | 2:50 am
      And so shines a good deed in a weary world, to quote
      Willy Wonka by way of The Bard. Onward until the
      throbbing techno torus is a mere memory like unto
      orchestral hits in a sampler!
      owner of a lonely heart,
      gregory
    • Mar 21 2006 | 3:00 am
      You might exploit the lens_angle attribute of jit.gl.render or
      manually manipulate the vertices of jit.gl.model in matrix output
      mode, or use a custom vertex shader.
      -Joshua
    • Mar 21 2006 | 3:01 am
      You looked at Tutorial 32 on camera view? Might be helpful in terms
      of moving the furniture. There are all kinds of possibilities and other
      ways to do anything. You might want to visit maxobjects.com and
      take a look at the inimitable Jasch's rotatexyz object, too.
      And in case you haven't done so already, have a looksee at
      Mr. Henrikson's little tweak; having had the pleasure of
      his presence onstage as a visualist for a recent performance
      in Minneapolis, I think I can say with some confidence that
      you could do a LOT worse than following *him* around. :-)
      gregory
    • Mar 21 2006 | 4:20 pm
      just to add to the confusion: