[Sidefx-houdini-list] Detect high frequency areas in CHOPs

Fabian Schnuer Gohde list.houdini at schnuer.com
Thu Sep 22 06:46:20 EDT 2011

Doh, or leave it at low pass which is default I think and is low cut 0 

On 09/22/2011 12:38 PM, Fabian Schnuer Gohde wrote:
> Not sure if I'm understanding this right but try the "Pass filter" 
> chop set to band pass with low cut to 0 and then start with high cut 
> to 0 and move up till it look right?
> Best regards,
> Fabian
> On 09/22/2011 11:54 AM, Pablo Giménez wrote:
>> Hi all.
>> I am tracking some points positions using chops.
>> This points moves towards a goal, every point has a different goal.
>> When they are close to theirs goals, because I am using forces, they 
>> begin
>> to oscillate around them. I have some kind of dampening that is 
>> working and
>> tends to stabilize points, but it needs some time to do it.
>> So I was thinking about using chops to detect when I have points 
>> oscillating
>> around their goals.
>> As expected I got channels that shows the initial movement towards the
>> target, with high amplitudes, then when a point is close to its goal 
>> I got
>> small amplitudes and high frequencies.
>> Hou can I detect this areas so for instance get a channel that goes 
>> from 1
>> to 0, 1 when point motion has low frequencies and 0 when it has high
>> frequencies.
>> Any help is welcome. Thanks!
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