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Posts: 5
Registered: ‎12-20-2005

How to clean / eliminate noisy data on BVH files?

587 Views, 2 Replies
10-20-2010 08:33 AM
Hi Guys,

I'm new with motionbuilder. Is there a way to stop or eliminate noisy movements on BVH files after importing it to MB?

Any tutorial of the method or process would be very helpful.

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Active Member
Posts: 6
Registered: ‎10-13-2010

Re: How to clean / eliminate noisy data on BVH files?

10-27-2010 12:55 PM in reply to: greyfox

Filters are probably your first and last line of defense against jittery data.

As long as you have plotted curves, open up the filter tab, and in the f-curves window select up a range (or the whole range if you have to) and try Butterworth or Smooth... Peak Removal or even Key Reducing sometimes can help too... but the former are your best of bets.

If you haven't ever done it before, a tip 'cause it's strange, you have to preview and then hit accept to apply the filter. I don't think you can just hit accept....

You have to play with the values too, see what suits your needs.

And if that doesn't work, maybe look into however you made the .bvh and smooth your data before it comes into Motionbuilder.

Best of luck
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New Member
Posts: 1
Registered: ‎09-25-2011

Re: How to clean / eliminate noisy data on BVH files?

11-16-2011 07:11 PM in reply to: greyfox

It looks like I dont have the butterworth filter in motionbuilder. In fact I seem to have only 4 filters : Peak removal, Reinterpolate, smooth and smooth translation. The filter is set in optical and I can't switch it to All, like in all the tutorials I saw.

Any help on this...?

Thank you very much!
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