[Sidefx-houdini-list] noob procedural animation

Cristobal Infante cgcris at gmail.com
Mon Feb 8 04:23:32 EST 2016


Hi Olivier,

The masterclass is good place to start, look for it on Vimeo.

On Monday, 8 February 2016, Olivier Jeannel <facialdeluxe at gmail.com> wrote:

> what would be a nice beginner tutorial for chops ?
>
> On Mon, Feb 8, 2016 at 12:01 AM, Alex Czetwertynski <disciple1 at gmail.com
> <javascript:;>>
> wrote:
>
> > Gary
> >
> > If you take the Copy stamping approach to doing this, you can randomize
> > easily using expressions, but you have to get your head around the
> concept
> > of stamping, which is tricky at first because it doesn't flow downwards.
> > See here for example
> > https://www.youtube.com/watch?v=UfRH42lHgEI
> >
> > You can stamp any parameter pretty much, so number of pipes, direction
> and
> > speed of revolve are pretty straightforward.
> >
> > When it comes to more hardcore animation, you will probably get a kick
> out
> > of CHOPS, even though they are not obvious at first, but overall the idea
> > is that you send your anmation channels to a whole separate environment
> > where you can procedurally modify them.
> >
> > Let us know if this helps.  Happy to look at a scene file if you want to
> > put dropbox link one.
> >
> > Alex
> >
> >
> >
> >
> > On Sun, Feb 7, 2016 at 3:07 PM, François Duchesneau <sidefx at trinix.ca
> <javascript:;>>
> > wrote:
> >
> > > Hi Gary,
> > >
> > > It's a bit hard to know what you're missing but make sure you read
> enough
> > > on stamping, groups, attribute manipulation like promoting and all the
> > > different attribute xyz nodes in sop.
> > >
> > > When I started to learn Houdini for the first time (I'm still learning
> > > everyday) there weren't much tutorials around apart from a pdf on
> > L-system
> > > and few others. However I've learned most of the foundation by looking
> at
> > > the example files that come with most of the nodes.
> > >
> > > For example, make sure you've been through a few of them on the Copy
> Sop
> > > node.
> > >
> > > This is a right place for asking questions. I myself prefer the mailing
> > > list however keep in mind there's no way to add attachments here.
> > >
> > > Cheers
> > >
> > > Francois
> > >
> > > On 02/07/2016 12:43 PM, Gary Jaeger wrote:
> > >
> > >> OK, I’ve been going through the docs and vimeo vids to start to get up
> > to
> > >> speed in houdini. Good stuff. I thought I’d give myself a little
> > procedural
> > >> test to see if I actually understood some basic concepts - and I
> failed.
> > >> Here is the simplified maya version of what I was trying to do:
> > >>
> > >> https://www.dropbox.com/s/e0vj28oin3lpbke/maya_proc.mov?dl=0
> > >>
> > >> But what I really wanted was to make myself a little tool with sliders
> > to
> > >> control:
> > >>
> > >> random scalex of the cross sections of the pipes
> > >> experiment with number of pipes
> > >> experiment with direction and speed of the pipe revolve
> > >> experiment with timing of the pipe’s rotations into place
> > >>
> > >> I don’t necessarily want individual control of each element. Rather
> > >> overall speeds with variance.
> > >>
> > >> I got as far as creating a plane, copying (or duplicating? Which is
> > >> better in this case?) and revolving them. But I couldn’t figure out
> the
> > >> random parts (I tried attribute randomize but it didn’t work). Also my
> > >> revolves ended up being a single group that I couldn’t see how to
> rotate
> > >> individually.
> > >>
> > >> Anyway, I know I could build this just like I did in maya, with
> > basically
> > >> all individual elements. But I figured there had to be a clean,
> elegant
> > way
> > >> in houdini. Any tips to lead me down the right path?
> > >>
> > >> Thanks.
> > >>
> > >> (by the way, is this best place or should I be in the sidefx forums? I
> > >> prefer mailing lists but not really sure where the party’s at)
> > >>
> > >>
> > >> Gary Jaeger // Core Studio
> > >> 249 Princeton Avenue
> > >> Half Moon Bay, CA 94019
> > >> 650.728.7957 (direct)
> > >> 650.728.7060 (main)
> > >> http://corestudio.com <http://corestudio.com/>
> > >> _______________________________________________
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> > >> Sidefx-houdini-list at sidefx.com <javascript:;>
> > >> https://lists.sidefx.com:443/mailman/listinfo/sidefx-houdini-list
> > >>
> > >
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> > >
> >
> >
> >
> > --
> > |||| Alex Czetwertynski ||||
> > |||| c - 213 268 71 85  ||||
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