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Activity Forums Adobe After Effects AE CS3 native motion blur

  • AE CS3 native motion blur

    Posted by Nelson Fernandes on May 11, 2008 at 8:58 pm

    Hi guys. This is smy first post, so I’d like to thank you in advanced. The issue is: I want to bring a object from 3ds max into after effects. So I granted each object a different object ID. I rendered up the .RPF sequence and brought it over into AE. I used ID MATTE filter to extract just that object. So far so good. Now I want to apply motion blur to this object and simply doesn’t work. I’m using AE CS3 by the way. However, when I apply the CC ForceMotion Blur effect, this one works. Can I accomplish this with the native motion blur or AE CS3 does not have support for this? Thanks.

    Joey Foreman replied 18 years ago 3 Members · 2 Replies
  • 2 Replies
  • Darby Edelen

    May 12, 2008 at 12:20 am

    [nel piper] “Can I accomplish this with the native motion blur or AE CS3 does not have support for this? Thanks.”

    AE’s motion blur will only affect things that are moving within AE. If the scenes you rendered have motion then that motion is part of the rendered image and AE has no way to know that it is moving… for all AE knows it could be a locked down image sequence of the mona lisa with no motion at all.

    CC Force Motion Blur, on the other hand, can look at the image and try to determine based on previous and next frames where things are moving and then blur those areas directionally… but AE has no way to do this ‘natively.’

    There is another great plugin that you can use to add motion blur to your scene called ReelSmart Motion Blur (if CC Force Motion Blur isn’t providing quality results and you have the $$$). It’s available at https://www.revisionfx.com/products/rsmb/.

    It even allows you to render out motion vectors from your 3D package and use those to determine the blurring in AE… which should provide much faster and higher quality results than CC Force Motion Blur (https://www.revisionfx.com/support/faqs/motion_vector_FAQs/motion_vectors/).

    Darby Edelen
    Lead Designer
    Left Coast Digital
    Santa Cruz, CA

  • Joey Foreman

    May 12, 2008 at 12:39 am

    Timewarp in AE has motion blur as well. Set the speed to 100%, analyze using Pixel Motion, and experiment with different shutter angles. My experience with this effect is limited, so I can’t speak for the quality of the results.

    Joey Foreman
    Editor/Animator
    Nowhere Productions, Athens, GA

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