[Sidefx-houdini-list] Lets do the time warp again!

Andrew D Lyons tstexture at gmail.com
Sat Dec 6 19:54:59 EST 2008

Once you are reading stuff off disk, Houdini has no way to know what
is happening in between frames - unless you set it up yourself.

You need to interpolate between current frame and previous (or next)
frame using 2 file sops and a blend sop. In one of the file sops use a
regular $F expression - but in the other you will need to use `$F-1`
or `$F+1` and maybe padzero if you use $F4. ie. `padzero(4, $F+1)`

Then in the blend you need to put a sawtooth expression in the blend
parm. $FF%1

Good luck!


2008/12/6  <gravatar at gravatonia.com>:
> Ok guys,
>    I seem to have some trouble with the timewarp node.  I am trying to stretch
> time to slow dow a particle system that I baked out to BGEO's.  On closer
> examination, it seems to be simple repeating frames to stretch time instead
> interpolating shorter distances for each slow down frame per particle?  Am I
> doing something wrong here? If I wanted to just repeat frame to slow down the
> motion, I could do that easily in post.  Any suggestions?
> Grav
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Andrew D Lyons | Digital Artist | http://www.tstex.com

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