[Sidefx-houdini-list] Smoothing Filter In Houdini

Joe Thornley Joe.Thornley at framestore-cfc.com
Sat Mar 4 06:41:45 EST 2006


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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