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ebenheizerm28787053
ebenheizerm28787053
Inspiring
May 19, 2020
Answered

Auto random movement

  • May 19, 2020
  • 5 replies
  • 2538 views

I don't know what to title this topic as, but here we go.

Is there any cheat/hack/tricks in Ch to achieve that random head movement like when South Park character is speaking. Up and down, left and right, as well as some slight rotations. It's just way too much of work to do it using keyframes. Perhaps there is a behavior we can use or a combination of them?

 

Thanks!

This topic has been closed for replies.
Correct answer David Arbor

Well don't forget that those movements in South Park aren't random. An animator keyframed them all. What you might be looking for is just a lower frame rate then. Try doing some random head movements with a scene that has a lower frame rate like 12 fps. You can change this at any time, so you can see the same facial tracking applied to a character at say, 60, for a really smooth movement, or 12 for a more stuttered movement. 

5 replies

ebenheizerm28787053
ebenheizerm28787053Author
Inspiring
June 3, 2020

Thank you!

That might be it, a manual keyframe.

D
David ArborCorrect answer
Inspiring
May 29, 2020

Well don't forget that those movements in South Park aren't random. An animator keyframed them all. What you might be looking for is just a lower frame rate then. Try doing some random head movements with a scene that has a lower frame rate like 12 fps. You can change this at any time, so you can see the same facial tracking applied to a character at say, 60, for a really smooth movement, or 12 for a more stuttered movement. 

    D
    David Arbor
    Inspiring
    May 28, 2020

    Have you tried reducing the Minimum Pose Duration? That and the smoothing parameter all work together with the actual pose-to-pose parameter. I believe Dave has a longer video online showing the feature in more detail. 

    ebenheizerm28787053
    ebenheizerm28787053Author
    Inspiring
    May 29, 2020

    Yes. I tried up to 0,1 sec. and it's still not as expected. Any other possible fix? Other than manual keyframe.

    D
    David Arbor
    Inspiring
    May 27, 2020

    To reduce the smooth movement when using face tracking enable the Pose-to-pose setting. https://www.youtube.com/watch?v=A-3ybJVzTYg

    ebenheizerm28787053
    ebenheizerm28787053Author
    Inspiring
    May 28, 2020

    Hi there! Thanks for responding.

     

    Yeah, I know pose to pose option. I have tried and experiment with it, but, it's not as expected. It's too jaggy and laggy. In South Park it is pose to pose, but super fast. I don't know how to explain better. Sorry.

    alank99101739
    alank99101739
    Legend
    May 19, 2020

    Have you tried just moving you head around and recording that for a few seconds? You could create a replay from it afterwards.

     

    You could also experiment (never tried this!) by changing the frame rate of the scene (e.g. halve or quarter it) and record a longer sequence, then set the frame rate back to the right value and try playing it back. Hopefully it will play back at double speed - faster than your head can move in real life. Record a nice long recording since it will get shorter. You could also try recording adjustments to the head sensitivity settings (e.g. so head forward/back zooms more, or small head movements move the puppet more) - if you cannot shake your head around enough.

    ebenheizerm28787053
    ebenheizerm28787053Author
    Inspiring
    May 27, 2020

    Sorry for my long response

    Thanks for responding Alank!

     

    I know the face behavior using webcam is possible, but moving your head all the time makes dizziness. Also the movement is smooth, unlike in South Park.

    Maybe I can try your suggestion on frame rate.

    Thanks again!

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