[Sidefx-houdini-list] water droplets running off the side of a bottle

Gerbrand Nel g at cannonballbunny.com
Tue Jan 19 13:16:15 EST 2016


Thanks everyone!!
I shall try
found this one too:
https://vimeo.com/40954039
Bit over the top for my 1 day budget, but there are some nice ideas in 
there.
G
On 19/01/2016 19:49, Javier Meroño wrote:
> if you want a reusable tool for dripping droplets like this one
> https://vimeo.com/artkill/dropletsrnd
>
>
> then Olivier is right on the money, you need to force the particle trajectory  with a POPVOP using a double cross product and afterwards use VDB volumes so that the droplets merge together properly . It´s not an obvious tool to create, though, and it will take some research and development on your side, so be sure it´s something you will reuse before going into it.
> Javier Meroño
>> From: parker.jon at gmail.com
>> Date: Tue, 19 Jan 2016 12:03:42 -0500
>> To: sidefx-houdini-list at sidefx.com
>> Subject: Re: [Sidefx-houdini-list] water droplets running off the side of a	bottle
>>
>> How about scattering some points around your surface, then scatter a
>> separate group near the bottom of your object and use the
>> findShortestPath node to draw lines that connect them.  The lines
>> should follow the contours of your object in a fairly realistic way
>> and you can then just animate the droplets to follow the curve paths,
>> no simulation needed.
>>
>> Jon
>>
>> On Tue, Jan 19, 2016 at 10:46 AM, Ron Schab <ron.schab at gmail.com> wrote:
>>> jep particles or u can have a look at this thing here:
>>>
>>> https://www.orbolt.com/asset/SideFX::vfx_rain
>>>
>>>
>>> SideFx-made HDA that going of the description should offer what u are
>>> after.  Haven't downloaded and tested, just remembered seeing it a while
>>> ago.
>>>
>>> At least should give u some ideas - it's free too
>>>
>>> good luck.
>>>
>>>
>>>
>>>
>>>
>>> On Tue, Jan 19, 2016 at 4:25 PM, Olivier Jeannel <facialdeluxe at gmail.com>
>>> wrote:
>>>
>>>> Double cross product is the way to get some slide on surface based on
>>>> incoming velocity.
>>>> But there might be a pop doing that, already.
>>>>
>>>>
>>>>
>>>> On Tue, Jan 19, 2016 at 3:52 PM, Srecko Micic <srecko.micic at gmail.com>
>>>> wrote:
>>>>
>>>>> And for moving particles, I did once similar with particle collision POP,
>>>>> and Respond set to slide. But not sure will that work in your case.
>>>>> --
>>>>> Srecko Micic
>>>>> 3D Generalist
>>>>> -------------------------------------------
>>>>> Skype: srecko.micic
>>>>> Email: srecko.micic at gmail.com
>>>>>
>>>>>> On Jan 19, 2016, at 3:04 PM, Srecko Micic <srecko.micic at gmail.com>
>>>>> wrote:
>>>>>> Try to scatter particles on surface. And than use Particle Fluid
>>>> Surface
>>>>> to mesh them, for example?
>>>>>>
>>>>>> --
>>>>>> Srecko Micic
>>>>>> 3D Generalist
>>>>>> -------------------------------------------
>>>>>> Skype: srecko.micic
>>>>>> Email: srecko.micic at gmail.com <mailto:srecko.micic at gmail.com>
>>>>>> http://sreckom.webworkman.com <http://sreckom.webworkman.com/>
>>>>>>> On Jan 19, 2016, at 2:21 PM, Gerbrand Nel <g at cannonballbunny.com
>>>>> <mailto:g at cannonballbunny.com>> wrote:
>>>>>>> Hey guys
>>>>>>> This one client called me and needs photo real droplets on a bottle by
>>>>> the end of tomorrow.
>>>>>>> I've done this in softimage in the past, but I was wondering if anyone
>>>>> knows of a nice tutorial or demo file of this in houdini?
>>>>>>> The static droplets is not the problem,
>>>>>>> I'm looking for some ideas on how to create the run-offs, how they
>>>> pick
>>>>> other droplets up on the way, and leave a trail behind.
>>>>>>> Thanks guys
>>>>>>> G
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