how to simulate zero-g / microgravity ?

Discussion in 'Professional Video Production' started by crocky, Jun 4, 2004.

  1. crocky

    crocky Guest


    I read Apollo 13 was filmed in the zero-g plane to simulate microgravity.
    But for other movies, how did they simulate zero-g ? For example 2001:A
    Space Odyssey was very good.
    I haven't been able to find how they did the zero-g effects.
    Does somebody knows how this is been done?

    crocky, Jun 4, 2004
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  2. crocky

    MSu1049321 Guest

    Wires. Back then, they were hand-painted out of frames on a light table device
    called a Rotoscope. Rotoscope now is more a generic term like kleenex or xerox
    and is generally used when people mean to matte or digitally paint something
    out of a shot.

    For cheesy TV zero-g. you shoot green or blue screen with a little table or bar
    stool covered in the same material. Your actor pretends to swim around and
    pose and whatever. I think the effect looks better if you put the camer in the
    ceiling looking straight down onto a green screened floor. Then the actor
    basically balances on one foot while reaching up towards the cam with their
    body... this makes it impossible to see wires, also, the tell-tale artifact of
    things hanging "down" below the floating person is minimized. This works great
    for flying superhero shots towards the camera.
    MSu1049321, Jun 5, 2004
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  3. Lots of diffeent ways. Typically actors suspended on wires from pulleys
    in the rafters, but that can be simple or complex - for the HBO series
    they used helium balloons on the wires and carefully calculated the
    amount of lift needed for each actor, to give them the 1/6th weight one
    has on the moon.

    Shooting underwater is an option, as is the Vomit Comet (the zero-G
    plane). A lot of the time it's just acting; if you can't see the
    actors' feet you don't necessarily know if they're on the ground or not.
    Typically, films will use a combination of techniques - wires for a wide
    shot to establish the gag and then going in close and letting the actors
    just act, for instance.
    Steven J. Weller, Jun 5, 2004
  4. crocky

    crocky Guest

    thank u very much
    crocky, Jun 5, 2004
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