[Sidefx-houdini-list] Emit smoke from particles H13

Olex P hoknamahn at gmail.com
Mon Feb 3 21:04:07 EST 2014


If particles are not the part of your smoke object (which is usually the
case when using the standard tools) they can be attached to a smoke object
using Fetch Data DOP. The rest is simple (as Sam described it).



On Tue, Feb 4, 2014 at 1:56 AM, Sam Klock <klock.sam at gmail.com> wrote:

> Assuming the pops are geometry of the smoke object add a gas particle to
> field to the last input of pyro. In the first parameter put in your density
> field, in the particles parm put "Geometry." Your particles need some sort
> of attribute to copy into the density field. This can be as easy as making
> a density attr on the particles. In the "Calculation" drop down, change it
> to add. If your pyro sim has sim has varying substeps set the source
> timescale to "linearly scale multiply" and set the source premult to your
> intended density per timestep and multiply it by the FPS.
>
> IF your geometry is not part of your pyro object you will have to copy it
> over into your pyro's geometry data. This can be done with a sopsolver.
> Jump in the sop solver and object merge in with
> "../../:popobject1/Geometry" (replace popobject1 with your particles data
> name).
>
> Hope this helps.
> Sam
>
>
> On Mon, Feb 3, 2014 at 4:32 PM, Alvaro Castaneda <varomix at gmail.com>
> wrote:
>
> > Hey Olex
> >
> > I've been trying all sorts of stuff but I really can't make it work.
> > I'll would be awesome if you can share anymore info
> >
> > thanks
> >
> >
> > On Mon, Feb 3, 2014 at 3:10 PM, Olex P <hoknamahn at gmail.com> wrote:
> >
> > > Hi Alvaro,
> > >
> > > Gas Particle To Field DOP should help you.
> > >
> > >
> > > On Mon, Feb 3, 2014 at 6:06 PM, Alvaro Castaneda <varomix at gmail.com>
> > > wrote:
> > >
> > > > Hey Guys
> > > > need your help
> > > >
> > > > I'm trying to use the new DOP POPs and then emit smoke from that, I
> > used
> > > to
> > > > just do it before bringing them from SOPs but now they are inside
> DOPs
> > > so,
> > > > how to I pass this into a source volume?
> > > >
> > > > DO I have to get them back to SOPs and bring them back?
> > > >
> > > > thanks
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