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Activity › Forums › Adobe After Effects Expressions › Refine Soft Matte.Shutter Angle value based on layer in_out points

  • Refine Soft Matte.Shutter Angle value based on layer in_out points

    Posted by Ilya Yaki on September 30, 2014 at 2:51 pm

    if applied Refine Soft Matte to a piece of sequence and turn on Motion blur , it has artifakts on begin and end of this segment . only solution is animate Shutter Angle to zero in begin and ends clip . please help to write Expression with two checks at the beginning and end of the clip + 1 frame , from 0 to 180 at begin ,and back at the end . i find this post https://forums.creativecow.net/thread/227/17090 , but i dont Know how modifet this ,to dowble check

    Ilya Yaki replied 12 years ago 2 Members · 2 Replies
  • 2 Replies
  • Dan Ebberts

    September 30, 2014 at 4:22 pm

    Probably something like this:


    if (time < (inPoint+outPoint)/2)
    linear(time,inPoint,inPoint+thisComp.frameDuration,0,180)
    else
    linear(time,outPoint-thisComp.frameDuration,outPoint,180,0)

    Dan

  • Ilya Yaki

    October 2, 2014 at 3:01 pm

    thank you Dan . Expressio work fine , parameter changes , but ! strangely enough, it works in the beginning of the clip but does not work at the end of clip . I even tried to do at the end of – 2 frames
    else
    linear(time,outPoint-thisComp.frameDuration*2,outPoint-thisComp.frameDuration,180,0)
    but to no avail
    on keyframes , it work fine . maybe it’s a bug AE

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