Question: trying to get 'heat wave' effect

Discussion in 'Photoshop Tutorials' started by BD, Nov 7, 2005.

  1. BD

    BD Guest

    Hi all.

    I have an idea I'd like to try in PS (CS2), but I'm unsure about a part
    of it.

    Picture a posed photo of a human torso - I want to give the illusion
    that there's a strong heat source at a specific point in the body (say
    around the heart area). I want to have those 'heat wave ripples' you
    see on hot days emanating up and out in a small area around and above
    that point.

    Is there some sort of 'ripple' filter that might be used to give this
    effect? I imagine it would require some kind of oval-shaped gradient
    around the effect as well so that it dissipates, but I'm not sure how
    I'd attack this one.

    Any suggestions from the wiser and more experienced out there?

    Thanks,

    BD
     
    BD, Nov 7, 2005
    #1
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  2. Hm.. you may be able to use the "Liquify" tool for this.

    Cheers,
    Nicholas Sherlock
     
    Nicholas Sherlock, Nov 7, 2005
    #2
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  3. BD

    Big Craigie Guest

    I've just tried a wee experiment. using the lasso tool I drew around and up
    from the heart area of a picture of myself, then I feathered the selection
    (it will depend on the resolution of your own pic to determine hwo much to
    feather), then I used the distort plugin set to glass. I'm not saying it's
    perfect but as a first go, it was OK(ish)
    BC
     
    Big Craigie, Nov 7, 2005
    #3
  4. BD

    BD Guest

    I've just tried a wee experiment.

    Thanks for checking into it!

    I may be able to use other tools to help - like maybe using some kind
    of a 'smear' tool, or even creating the ripple lines out by hand, and
    working it in as a layer with a layer mask to control the opacity.

    Maybe some of the functions in Fractal Painter would be useful. Haven't
    looked at that package in many a day...
     
    BD, Nov 7, 2005
    #4
  5. BD

    Flo Nelson Guest


    Try drawing a line(or lines), use filter > distort > ripple and then change
    the blending mode and opacity. Overlay seemed to create a nice heat wave
    effect in the file I tried. You could probably slightly erase parts to make
    it look more real.

    Flo
     
    Flo Nelson, Nov 8, 2005
    #5
  6. BD

    BD Guest

    You could probably slightly erase parts to make it look more real.

    or use a layer mask, I guess.

    Thanks!
     
    BD, Nov 8, 2005
    #6
  7. BD

    Tom Nelson Guest

    You need some detail for the ripple effect to distort. Plain skin tone
    might not be textured enough.
    Tom Nelson
     
    Tom Nelson, Nov 8, 2005
    #7
  8. BD

    BD Guest

    You need some detail for the ripple effect to distort. Plain skin tone

    You're right, I'm sure. I'm trying to picture in my mind how the actual
    physical effect works - its unlikely that the 'real-world' effect can
    be noticed if the background is one solid color.
     
    BD, Nov 8, 2005
    #8
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