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Colored Fog

Discussion in 'Special Effects' started by 6ftstudios, May 28, 2007.

  1. 6ftstudios

    6ftstudios Member

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    So...I'm watching Spiderman. In one scene there is green colored fog. Anyone know how this can be achieved? I don't think it was lighting or cg.
     
  2. soundman

    soundman Well-Known Member

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    The safest way to do it is to shine green light into it. There is no way to add dye to fog to make it change color that requires smoke which is a big can of worms.
     
  3. PadawanGeek

    PadawanGeek Active Member

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    What makes you think it wasn't CG?
     
  4. avkid

    avkid Not a New User Fight Leukemia

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  5. icewolf08

    icewolf08 CBMod CB Mods

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    AEA doesn't have an issue with fog they just regulate it for health and safety reasons. The paperwork that is available on their website is based on the testing done by Environ, and independent company, for AEA. They tested, and continue to test various fog and haze machines for the particle concentration of the fogs and hazes based on the safe levels for breathing. There is also documentation on how to perform your own testing if your machine is not listed.

    The calibration factors document from the above link details how the air quality meters were set up for the testing. There are also equipment based time and distance reports available for download. These detail when you can put an AEA actor in front of different machines at different output settings.
     
  6. Van

    Van CBMod CB Mods Premium Member

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    ost likely it was a version of "spectra smoke". Spectra Smoke or smoke cookies are available at a number of places, anyplace that does video or film. it usually comes in a 3 1/2" x 3/8" Cookie. we used to use a pair of vise-grips to hold half a film can light the cookie, then put it in the can lid, then use the other half of the lid to wave it around the set. There are a ton of ways to get this kind of smoke, but as there is a prohibition against Pyro on here, and all of these methods involve lighting something on fire or igniting a chemical, I shant discuss it further.....:mrgreen:
     
  7. gafftaper

    gafftaper Senior Team Senior Team Fight Leukemia

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    As was suggested above, with all the CGI in that movie why would they deal with the hassles and hazards of real smoke? Just draw it in later, it'll look more like real smoke than real smoke does.
     
  8. PadawanGeek

    PadawanGeek Active Member

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    Yeah, I do special effects and smoke isn't that hard.
     
  9. gafftaper

    gafftaper Senior Team Senior Team Fight Leukemia

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    And you don't have a bazillion dollar budget like they did.

    Look at it this way, how much in that same shot was CGI-ed in later? Was anything real in that shot? How can you know anymore?
     
  10. PadawanGeek

    PadawanGeek Active Member

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    When I said special effects i meant in videos (like greenscreen, lightsabers, smoke, blaster shots, etc.).

    But still, we do lots of smoke in the youth ministry. We have an ADJ Fogstorm 700 and we are now getting an ADJ Mister Kool (dry ice fogger W00t!). We do tons of special effects. There is a kids camp called Breakaway this summer and it is spaceship themed, and we are making a control panel, and we are hopefully going to make it blow up! :twisted:

    _______________________________________________


    I just use Adobe After Effects.

    If you look at the behind the scenes in Starwars, where are whole scenes with closeups of characters that are all CG.
     
    Last edited: May 30, 2007
  11. PadawanGeek

    PadawanGeek Active Member

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    Oh, well we still do a lot of burning stuff (swords, mini-flamethrowers, etc.). We also really like explosions (such as shooting TVs!). :twisted::twisted:
     
  12. avkid

    avkid Not a New User Fight Leukemia

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    "We" should seek professional help(head shrink or a pyrotechnician)before someone gets hurt!
     
  13. PadawanGeek

    PadawanGeek Active Member

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    We have professional help... The angels!
     
  14. avkid

    avkid Not a New User Fight Leukemia

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    I'd like to see their licence!
     
  15. PadawanGeek

    PadawanGeek Active Member

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    They don't need one :grin:

    It shouldn't be hard to tell an angel from a phony.
     
  16. Chris15

    Chris15 CBMod CB Mods Premium Member

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    Are angels not entitled to days off?

    And I thought God gave people wisdom for a reason...
     
  17. PadawanGeek

    PadawanGeek Active Member

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    Yes, but considering that there are tons of angels, It doesn't matter.

    Yeah he did. What does that have to go with it?
     
  18. Chris15

    Chris15 CBMod CB Mods Premium Member

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    The fact that this question is being asked is of slight concern... You have wisdom to know that playing with flaming swords comes with a high chance of burning the building down or some other disastrous consequence and should then be able to, through said wisdom, that it might be a good idea not to do it...
     
  19. PadawanGeek

    PadawanGeek Active Member

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    We've been doing it for years, and the guys are very experienced. Its mostly the adults with the flaming swords, and when the youth hold they they are freaked out so they're very careful. Most youth just stare at the sword when they hold it.
     
  20. Chris15

    Chris15 CBMod CB Mods Premium Member

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    Let me echo my apologies for the misinterpretation posted in the other thread and refer you there for further details...
     

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