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owiseone61755
Inspiring
February 2, 2014
Answered

Video effects for a horror/thriller trailer

  • February 2, 2014
  • 2 replies
  • 19028 views

I'm working on recutting a trailer as a different genre and I was wondering how to do a couple of effects.  How do you do the white flash on the screen(not a dip to white transition but in the middle of the clip) and the flash that shows a negative of the original image like you see in some horror/thriller trailers?

      Correct answer Kevin-Monahan

      Hi owiseone,

      Here's how I would construct the effect.

      1. Create the "negative image" effect.
        1. Apply the Invert effect: Video Effects > Channel > Invert
        2. Try different Channel Options. I chose "Lightness."
      2. Desaturate the colors on the negative image.
        1. Apply a Fast Color Corrector
        2. Take Saturation down to 0.
        3. Adjust the Input Levels slider to taste
      3. Make the effect flash on and off with the original clip by using the Strobe effect, or by manually adding the effect to Add Edits.
        1. First, do the following
          1. Copy paste the clip to V2.
          2. Remove effects from the clip on V1.
        2. Do either of the following to the clip on V2:
          1. Apply the Strobe Light effect: Video Effects > Stylize > Strobe Light and adjust parameters to taste.
          2. With the Razor tool or the Add Edit keyboard shortcut, create splices that are several frames long, create them either the same length, or random durations. Delete portions of the clip between the add edits.
      4. Play back the effect and adjust parameters until you're happy with the effect.
        1. Set up a range to play In to Out
        2. Enable Loop Playback
        3. Adjust parameters in any of the effects as they play In to Out.

      Hope that helps!

      Kevin

      2 replies

      the_wine_snob
      the_wine_snob
      Inspiring
      February 2, 2014

      Along with a Title w/ a white Filled, full-screen Shape, you could use a Color Matte w/ white, for however many Frames you feel is right.

      For the "negative," look at the Invert Effect. Do not have the latest version of PrPro on this laptop, but it was under Video Effect>Channel. In the little Effects query box, type in invert, to find it on your version.

      Good luck,

      Hunt

      C
      cvid01
      Inspiring
      February 2, 2014

      One way to do it is to use Titler, make a full screen white box, put it on the timeline for 1 or 2 frame with opacity from 100% to 0 from beginning to end of "title". Use as many frames you need to make the flash. Play with it. The white box title should, of course, be on a track above the video upon which you wish to have a white flash.

      O
      owiseone61755Author
      Inspiring
      February 2, 2014

      Great, I'll try that.  How about the flash where the people in the frame look like negative images of themselves?

      Ann Bens
      Community Expert
      Ann BensCommunity Expert
      Community Expert
      February 2, 2014

      For the flash use the Levels effect: keyframe gamma and white input.

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