1 Reply Latest reply on Nov 30, 2015 7:33 AM by Szalam

    difference between former rendering (preview window) and just playing a composition from the Preview window



      I am rather new to After Effects. I practised with the program on the computer of a friend. She uses an older version, version

      I now downloaded a trial version of After Effects 2015 and immediately noticed that the 'render button' has disappeared from the Preview window. I went searching for info and discovered that this function has drastically changed in AE 2015. I still have to study these changes.


      My question right now about the preview panel (old vs new version), what exactly is the technical difference between (the older versions') rendering a composition with the ram preview button (that has now disappeared in the 2015 version) and simply playing your composition by using the play button in the preview panel? The play button is still there in the 2015 vs, but there must be a difference.





        • 1. Re: difference between former rendering (preview window) and just playing a composition from the Preview window
          Szalam Adobe Community Professional & MVP

          There were two different ways to preview compositions before (play button and RAM preview button which could also be invoked with spacebar and 0 on the number pad respectively).

          Play button (or spacebar) would simply start trying to play the composition. Since AE is not a realtime video editor, this would be a slow playback as it rendered frames. If you happened to have the "green line" above a frame (indicating that it had previously rendered that frame), it would play back in real time though.

          Pressing the RAM preview button (or 0 on the number pad) would begin rendering frames which would then play back, in real time once the rendering had finished.


          Most professionals never used the spacebar method to play back because it wouldn't play in real time (and it wouldn't play with audio). So the spacebar was pretty wasted. If you had a laptop that didn't have a number pad, for example, you couldn't invoke a decent preview without having to click the button. Most pros like using keyboard commands! Also, new users would press the spacebar expecting AE to behave like a video editing program (which AE most certainly is not) and would be disappointed with how it would work. They'd come posting to the forums about how "After Effects preview isn't working" but it's really that it wasn't behaving the way they expected (even though it was behaving as it was designed).


          So, when the Adobe After Effects team started working to rebuild After Effects' internal architecture, they decided to change how previews work. New users, pro users, and everyone in between can now preview a bit more reasonably (assuming AE is working properly...) And, the preview system can now be tweaked for how you like to work.


          This page explains the new previewing system in AE: all about previews in After Effects CC 2015 (13.5)


          There is supposed to be an update for AE coming "at the end of the month" (so, probably today) that tweaks a bit how the preview behaves. Some details here: What’s new and changed in the upcoming update to After Effects CC 2015