 | | | sketch particles | sketch particles 2005-05-05 - By kim aldis
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Probably because turbulence is built to affect velocity - he says, stating
the obviuous ;). Or possibly that the force of the turbulence is
proportional to the velocity, rather as drag would be.
One of my big beefs about particles is that there's no logic or information
about what forces affect what properties of particles. In my book a force is
something that affects acceleration - F=Ma - the acceleration percolating
down through velocity and finally position. I couldn't say for sure but I'm
guessing this may not always be the case.
> -- --Original Message-- --
> From: owner-xsi@(protected)
> [mailto:owner-xsi@(protected)] On Behalf Of Matt Hollingsworth
> Sent: 28 April 2005 17:35
> To: XSI@(protected)
> Subject: Re: sketch particles
>
> Hmm. Thanks, I'll check on that. But, if this _is_ the
> case, then wodnering why turbulence and eddy work but not the
> vortex. I was udner the impression that the velocity setting
> is entirely to allow it to transfer velocity from your stroke
> during sketching. Is this not the case?
>
> Thanks for the idea.
>
> -M
>
> Dan Yargici wrote:
>
> > If the velocity is at 0 then the forces have nothing to
> affect! Try
> > entering 0.001 or something.
> >
> > DAN
> >
> >
> > Matt Hollingsworth wrote:
> >
> >> Curiosity!
> >>
> >> Anybody use sketch particles much?
> >>
> >> I've sketched some particles, created an initial state from them,
> >> then created a new cloud from that initial state. Live
> forever, no
> >> velocity transfer. THen I jsut wanna apply some forces.
> >> I cannot get the vortex to work. I crank it up as high as
> it will go
> >> and nothing. The eddy works fine, but not the vortex.
> Weird. Under
> >> the PType's enviro settings, vortex is not disabled or
> turned down or
> >> anything.
> >> Any ideas?
> >>
> >> Seems like a pretty cool tool, if a bit rough around the edges.
> >>
> >> best,
> >>
> >> -Matt
> >>
> >>
> >>
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