4 Replies Latest reply on Feb 25, 2016 9:12 AM by Dave LaRonde

    double exposure

    Mike Maxxi

      Hello to anyone.

      I looked this tutorial in italian about how to make a double exposure in AE.

       

      Doppia Esposizione (Double Exposure) - Tutorial After Effects ITA - (Easiest Way!) - YouTube

       

      Following them guide, I make the same steps but unfortunately doesn't work.

      Please there's anyone that know why if I use the mode "Screen", my result is this:

      double exposure failed.PNG

      instead to have this:

      double exposure correct.PNG

      Please could help me? Where is the mistake?
      Thanks in advance for the help. I use AE CC 2015.2 version 13.7.0.124

      Best

      Mike

        • 1. Re: double exposure
          KRTeutsch Level 1

          The Screen blending mode uses the luminance (brightness) of a layer to make its changes. There is not enough contrast between your person and your background for screen mode to make a difference.  Replace the green with white and use levels or curves on your man.

           

          Your background needs to be white and your man fairly contrasty.

          • 2. Re: double exposure
            Rick Gerard Adobe Community Professional & MVP

            Screen and Add both add pixel values making everything lighter. Overlay makes light things lighter and dark things darker. Multiply makes dark things darker.


            IOW, if you have black background and white text on a jpeg and you use the multiply mode everything will be black except where the white text is. If you use the screen mode all of the pixels under the black will not be changed but the pixels under the white will turn white. You'll have to experiment with the blend modes.


            The tutorial  uses footage of the guy shot against a perfectly white background. It looks like your footage does not. You'll have to remove the background or experiment with some other masking techniques and blend modes. Simple as that.

            • 3. Re: double exposure
              Mike Maxxi Level 1

              Ok, thank you very much guys!

              • 4. Re: double exposure
                Dave LaRonde Level 6

                I would do the following:

                Create a white solid for a background.

                Chroma key the green screen footage using keylight and duplicate they layer.

                Use one of the keylight layers as a track matte for the forest footage.

                Put the other keyliught layer at the top of the timeline.

                Select a blend mode for this layer.

                 

                You should see the subject and the forest layer over a white background.