[Bf-committers] Fluid dynamic areas for development?

[Ronan Ducluzeau]

Blender's good old fluid simulation is explained on the wiki.
http://wiki.blender.org/index.php/Doc:2.6/Manual/Physics/Fluid

Since 2.5, blender have SPH particles that acts like fluids with more
controls and freedom for artistic expression.
These particles are not hidden to user like in the old simulation and they
are really easier to tweak for unreal effects than control fluid object of
the old simulation.
http://farsthary.wordpress.com/2010/03/19/introducing-particle-fluids-parametters-function/

Unfortunately, there is no way to render these particles correctly.
There were attempts to create mesh surface with add-ons using metaballs,
abandonned patches for mesh creation or suggestions to render them as
volume material through point data texture.
But problem is always the same; the result is blobby. Thickness is the same
everywhere based on same size for all particles.
http://vimeo.com/32500699
http://vimeo.com/56813254

We need creation surface that takes into account fluid tension to stretch
mesh where there are few particles instead of neglecting them and creating
holes.

We have great particles, sensible to force fields, curve guides. It is easy
to give them any kind of shape or flow directions. They can act like mixing
fluids, elastic material.
But all this gret stuff  is useless if we cannot rendered them as a
smoothed mesh.


2014-08-19 23:45 GMT+02:00 Jacob Merrill <blueprintrandom1 at gmail.com>:

> I would love to see a fluid simulator that was compatible with the blender
> game engine, right now people use shaders or soft bodies, and soft body is
> pretty buggy,
>
> I would also love to see "energy" per particle/volume so materials could
> transition from solid, to liquid to gas to plasma etc?
>
> I simulated plasma using smoke to fire transition back in the day, but it
> was not scientific at all.
> On Aug 19, 2014 1:32 PM, "Kévin Dietrich" <kevin.dietrich at mailoo.org>
> wrote:
>
> > Hi Alejandro,
> >
> > As fas as I can tell, there is no actual - or official - roadmap/feature
> > requests/work items for Blender's fluid system.
> >
> > You can head over in #blendercoders channel on IRC (freenode.net), and
> > ask there what you might work on.
> >
> > Cheers,
> > Kévin
> >
> > Le 19/08/2014 20:36, Alejandro Jimenez a écrit :
> > > Thanks for replying,
> > >
> > > Is it planned the existing fluid simulators switch to this mantaflow
> > > framework?
> > >
> > > I have seen the following fluid framework looking at youtube. Under
> > Blender
> > > Cycles tags,
> > > https://www.youtube.com/watch?v=lYTVOdcgyP8
> > > But have not being able to find where I can find the roadmap/ feature
> > > request/work items, for fluid simulations in blender internals.
> > >
> > >   I am trying to find if I can contribute more specific in Multiple
> phase
> > > flow area such as water/oil or fire/water/air, can anyone point out
> what
> > is
> > > the correct channel to sync If I can contribute in the fluid
> > > simulators/render engine for fluids of Blender cycles?
> > >
> > >
> > > On Tue, Aug 19, 2014 at 11:04 AM, Daniel Salazar - patazstudio.com <
> > > zanqdo at gmail.com> wrote:
> > >
> > >> Hey! Well it's good timing, Blender is currently getting a new fluid
> > >> dynamics framework called mantaflow as part of GSoC 2014 and I'm sure
> > >> a lot of work is needed from now on!
> > >>
> > >>
> >
> http://wiki.blender.org/index.php/User:Romanp/GSoC_Mantaflow_Framework/Docs
> > >>
> > >> best regards,
> > >>
> > >> Daniel Salazar
> > >> patazstudio.com
> > >>
> > >>
> > >> On Tue, Aug 19, 2014 at 11:57 AM, Alejandro Jimenez <
> > whilealex at gmail.com>
> > >> wrote:
> > >>> Hi,
> > >>>
> > >>> I really like the area of fluid dynamics, from fluid simulation to
> > >>> rendering algorithms/mesh generation, I am currently working on
> setting
> > >> my
> > >>> undergrad thesis work by helping in one of these areas, can anyone
> > point
> > >> me
> > >>> the right channel to help and find work items to improve blender in
> > these
> > >>> areas?
> > >>>
> > >>> -Alejandro
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