[Sidefx-houdini-list] Smoothing Filter In Houdini

Joe Thornley Joe.Thornley at framestore-cfc.com
Sat Mar 4 06:54:54 EST 2006


Oh and Dave Gordon should get a mention as he was looking into this too!
he might have something ready-rolled if you need it...
Dave?

Joe Thornley wrote:

> I don't have the vex code to hand, but you can use getneighbourcount() 
> and getneighbour() to loop through the neighbouring points and set the 
> current points P to the average of its neigbours.
>
> cheers, joe
>
> Sean Lewkiw wrote:
>
>> I think you can write a VEX that does the same thing as the Realflow 
>> smoothing algorithm.  Basically, after converting to poly, you just 
>> subtract some percentage of the average of the point positions of 
>> every points nearest neighbor, and do as many iterations of this as 
>> necessary to get the thin streamy look.  I think.  This is something 
>> that Joe Thornley, (founder of the Thornley Null ©) showed me.
>>
>> Sean
>>
>> Peter Bowmar wrote:
>>
>>> Smooth SOP is key. Also, and this is kind of weird, if you move the
>>> Frequency up above 1 or 2 (forget which) things get really bad, but if
>>> you keep going past 2, then things start to look really nice again.
>>>
>>> You have to use Convert Meta to get polygons first of course.
>>>
>>> Cheers,
>>>
>>> Peter B
>>>
>>> On 04/03/06, Jaideep Khadilkar <iamjaideep80 at yahoo.com> wrote:
>>>  
>>>
>>>> Hi Everybody.........
>>>>
>>>> Just wanted to know whether Houdini Metaballs has a smooth 
>>>> filtering like, Realflow. In Houdini, main problem I am facing is 
>>>> to creat thin fluid flow. I tried to play with size and weight 
>>>> parameters, but not getting thin flow. Or increasing the numer of 
>>>> particles is the only option?????
>>>>
>>>> ---------iamjaideep80
>>>> Jaideep Khadilkar
>>>> TD,Sciclone Motion Graphics
>>>>
>>>>
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>
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