3 Replies Latest reply on Jan 22, 2014 10:17 AM by Szalam

    Abrupt opacity change


      Hello, I need to have the opacity of something be 100% for a certain number of frames and then instantly drop to 0%. But all of AE's helpful interpolation and easing seem designed to stop this from happening. Even the graph editor doesnt seem to make this easy. Can anyone give me the lowdown on this?


        • 1. Re: Abrupt opacity change
          Rick Gerard Adobe Community Professional & MVP

          If you want to have frame 40 be at 100% and then frame 41 be at 0 put a keyframe at frame 40 and frame 41.


          If you want to put a keyframe at frame 10 and another at frame 41 and you want to values to change on frame 41 instantly to the new value then use Toggle hold keyframes by context clicking the keyframe at frame 10 an make the selection..


          This is BASIC keyframing technique. Have you goine through any of the getting started training materials or searched the help files for keyframing???

          • 2. Re: Abrupt opacity change
            Salieri_13 Level 1

            Thanks, that's what I ended up doing, I'm glad it is the approved technique. And yes, I have been through tons of stuff; but it seems what the kids want is easing so most of the keyframing and interpolation pages are about that. Sorry to put you out.

            • 3. Re: Abrupt opacity change
              Szalam Adobe Community Professional & MVP

              This is the help file area to which Rick (no doubt) refers. It's a good read for anyone at any level of AE experience because it's got a lot of good info and/or reminders in it for all of us.