[Sidefx-houdini-list] bubble geometry in houdini

David Johnson daveinengland at gmail.com
Tue Mar 30 12:03:15 EDT 2010


What about using some way of positioning the point (like pops or dops) to
get the points to keep a certain distance away from each other with pressure
and density and gravity, then using a voronoi kind of thing to find the
surfaces between them. Then the ones on the surface would just be a certain
distance from the point based on pressure.

Just thinking out loud.

Dave

On Tue, Mar 30, 2010 at 8:29 AM, herman <herman02 at netvigator.com> wrote:

> thanks drew & francois for the reply...
> i had installed evolver earlier, however, i'm quite weak in scripting &
> vop,
> guess the problem can't be resolved by sop alone.
>
> cheers herman
>
> ----- Original Message -----
> From: "François Duchesneau" <sidefx at trinix.ca>
> To: <sidefx-houdini-list at sidefx.com>; <Drew.Whitehouse at anu.edu.au>
> Sent: Tuesday, March 30, 2010 8:07 PM
> Subject: Re: [Sidefx-houdini-list] bubble geometry in houdini
>
>
> Just an idea but to avoid any deformation artefact you could use a Vop
> Sop and deform your points either with a function based on height if
> it's a flat grid or with a Volume Sample and Gradient if it's an
> animated geometry.
>
> François
>
> Drew Whitehouse wrote:
> > This is quite a complicated thing to simulate. Of course you may be able
> > to
> > fake it somehow. The goal is to minimize the surface tension energy. This
> > software may be of interest -
> >
> > http://www.susqu.edu/brakke/evolver/evolver.html
> >
> > <http://www.susqu.edu/brakke/evolver/evolver.html>-Drew
> >
> > On Tue, Mar 30, 2010 at 3:36 PM, herman <herman02 at netvigator.com> wrote:
> >
> >
> >> hi all,
> >>
> >> would like to know how to make water bubble geometry in geo. i want to
> >> have
> >> spheres interecting sharing a flat surface and not the curve surfaces
> >> when i
> >> surfsect (for nurbs) or cookie (in polygon)...
> >>
> >> i tried to scale down to 0 after surfsecting two sphere taking their
> >> intersection. this may work for 2-3 spheres... would like to know if
> >> there
> >> is more efficient way to do it especially when i want to try it on large
> >> numbers of interecting spheres.
> >>
> >>
> >> thats something i like to acheive
> >> http://torus.math.uiuc.edu/jms/java/stereop/hypc.gif
> >>
> >> thanks.
> >> herman
> >>
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> >>
> >
> >
> >
> >
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