5 Replies Latest reply on Jun 10, 2014 6:50 AM by Szalam

    Too Short RAM Preview in After Effects


        Hi there,


      After applying some automation & effects to imported video (1920x1080, 29.97 fps, 50 MBit/s, H.264), RAM Preview works VERY slowly. First, the program begins to process the composition from current time indicator position, frame after frame, spending around 2 - 4 seconds per single frame. Then, after computing about 2 - 3 seconds of the composition (60 – 90 frames or so), the app actually starts to preview this short section of the comp. Despite the settings in After Effects' Preferences (Disk Cache Size, 6 GB RAM available for the application, Rendering Multiple Frames Simultaneously etc.), the length of the RAM-previewed video remains VERY short – maybe 2 or 4 seconds at its best. Also, sometimes the window appears, saying that "After Effects Error: RAM Preview needs 2 or more frames to playback".

      What's going wrong and is it possible to increase the length of the composition section for RAM Preview  and speed up frames' processing before RAM Preview could take place?


      Many thanks.Screen Shot 2014-06-09 at 13.01.51.png