2 Replies Latest reply on Oct 9, 2009 7:24 AM by the_wine_snob

    Rendering - Dumb question


      I hope this doesn't sound too dumb... but making movies is just a little hobby of mine, and I'm learning it all on the fly.


      What is rendering, and more to the point how often are you ment to do it? I know you just hit Enter to do it, but when I do hit Enter it tells me it going to take ages so I end up hitting cancel, and not bothering. Should I perhaps do it more often, or is it not really needed. I think I have background rendering on, but when I look in Timeline most of my movie has the red line above it. Does it make the playback look better, cos when I play my movie some of it is blurry & jumps/skips, but once I burn it it seems ok?

        • 1. Re: Rendering - Dumb question
          Ozpeter Level 1

          Rendering the timeline makes it play back more smoothly, possibly with better visual quality - or it should - it rather depends on what type of video you are editing.  The simple way to determine whether it makes a difference is to put one clip of the type you normally use on the timeline, play it, then render the timeline, play that, and see which looks best (and which seems to stress your PC least, if you can tell).


          Some complex effects and transitions will play back much better if rendered, even if you don't render the whole timeline.


          Basically - see what works best for you after you've done a bit of testing.

          • 2. Re: Rendering - Dumb question
            the_wine_snob Level 9

            Rendering is exactly as Ozpeter says - a way to improve playback. Also, remember that the playback is but an emulation. The actual Exported material will be better than what you see in the Program Monitor, so long as you have chosen the proper high-quality Preset for Export/Share.


            As Ozpeter mentions, you can choose to Render smaller sections of the Timeline. This is done via the WAB (Work Area Bar), which can be set to just the area that you wish to Render. Here's a look at the WAB:




            On some Timelines, I'll never Render. On others, usually with intricate Effects, I might Render 20x, just to carefully check how those Effects (or Transitions) are going to perform. To the best of my knowledge, PrE does not use Render files for anything, except playback. I mention this, because PrPro can use those Render files to speed up Export of certian formats, such as Export to DV-AVI Type II. It seemed to me that PrE did this, as well, since a Rendered Timeline did seem to Export/Share more quickly. However, others with more knowledge of PrE under the hood, tell me that it does not use them at all - so much for non-scientific observations.


            Good luck,