Hey could anyone help me approach on how to create exploding fluid simulations in Houdini 10. Similar to the sony bravia advert 00:19-00:22.

http://www.youtube.com/watch?v=pGL0gdEPCtU [youtube.com] - sony bravia ad

Cheers

Tj

You might get good results if you:

Create a fluid simulation using the pyro or smoke solver.
Advect particles through the simulation.
Surface the particles with the particle fluid surface SOP.

Hey could you be kind enough to upload an example file of your suggestion. I'm not too familiar with pyro techniques in houdini so it would be great to see an example file.

Cheers

Tj

If you are not to familiar with the pyro solver , you should be looking at all the Fluids tutorials available here http://www.sidefx.com/index.php?option=com_content&task=blogsection&id=14&Itemid=132 [sidefx.com] . As they easily explain enough to get you started.

rob

There are a few ways to push fluids around. Have a look at the Drive Simulation Tab for a few options.

You can use metaballs to impart forces on particle fluids. Create your metaballs and then use the Magnet Force tool from the Drive Simulation shelf and follow the prompts. See the attached file.

You should also birth more particles at the explosion time. You could use the metaball object, surface it and pass this as another particle source keyframed to sync with the explosion.

To have this automated, you could isolate the particle fountain where the particles slow down and almost stop then copy metaballs to these isolated points. Keyframe on top of this for more control.

Another approach to cause explosions with SPH only is to simply emit new particle fluid at the tops. Not much control over this approach though.