CHOP Deformation lag : Need help !

[vbk!!!]

Hello,

I am trying to make the lag within CHOP and I have a problem ( again ).

If you look at the picture attached, You can see a channel coming from a geometry ( called voldiff). What I would like is my lag only react when the value of voldiff is under or equal to zero.

How It could be possbile in CHOP ?

Thanks for your help.

++

Vincent

[anim]

you can use either Limit CHOP or Expression CHOP to split your channel to positive and negative part

do lag on negative and add both back together

chops_lag_negative.hip

[vbk!!!]

Thanks for your example Anim but in if your hip you modify the part of a channel and its not exactly what I am looking for.

I would like a channel ( chan1) to be modified ( by a lag ) regarding the value of another channel (chan2). If chan2 <= 0 then chan1-Lag.

I just see expression node accept multiple entries. i ill try to watch the doc about that ...

Thanks again

++

Vincent

[anim]

...

If chan2 <= 0 then chan1-Lag.

...

then this might help

1. test if chan2<0 this will give you weight channel 0 for positive 1 for negative parts

2. blur this channel a little with Filter CHOP to avoid sharp changes

3. use Blend CHOP to blend between unlagged and lagged geometry according to weight channel

here is an example

chops_lag_by_weight.hip

[vbk!!!]

exactly what I wanted.

Thx