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Activity › Forums › Adobe Premiere Pro › Optical flow on clip speed changes causes PP to crash

  • Optical flow on clip speed changes causes PP to crash

    Posted by Jon Felix on December 27, 2015 at 10:13 pm

    As stated really. If I use Optical Flow to interpolate speed changes – it usually crashes PP. On one occasion it actually completely crashed the computer.

    Since upgrading from CS6 I have experienced endless problems with PP. Seems to just get worse and worse. Can Adobe really not achieve the stability PP enjoyed before CC? I now often use AVID when clients are present. I hate it, but at least it never crashes. And I’m using FCPX, which I do like [gasp], but is too slow with long form projects.

    Please Adobe – sort it out mate!

    jon

    PS. Morph cut also causes a devastating crash.

    5k Imac
    32 Gb RAM
    Yosemite
    Latest PP update (as of Dec 27, 15)

    Jon Felix
    RAINDOG MOTION PICTURES
    Los Angeles

    Chris Stone replied 10 years, 4 months ago 3 Members · 5 Replies
  • 5 Replies
  • Chris Stone

    May 23, 2016 at 10:57 pm

    I just had the same problem with Optical Flow giving me a full on system lock-down, had to power down to recover. Did you ever find a solution for this?

  • Chris Wright

    May 24, 2016 at 1:17 am

    you both are combining multiple effects like lumetri. unfortunately, optical flow only works well with zero effects applied and non-interframe codecs like prores, dnxhd. you have to pre-render out luts, effects etc. before appling optical flow or your RAM will crash premiere.

  • Chris Stone

    May 24, 2016 at 1:52 am

    Thanks for your reply, Chris. I didn’t have any other effects, just a speed change (which is the reason I needed the smoothing. However the footage is H.264. You recommend transcoding to Prores?

    Thanks again.

  • Chris Wright

    May 24, 2016 at 2:02 am

    yes

  • Chris Stone

    May 24, 2016 at 2:16 am

    Thanks for your prompt response, much appreciated!

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