[Sidefx-houdini-list] Keeping your hairstyle while still being affected by forces

François Duchesneau sidefx at trinix.ca
Tue Nov 27 15:30:43 EST 2007


I've made an example file for SideFx called PonyTail that shows this and 
also how you can set the stiffness on a point basis as Alvin said. It 
might be included in the latest build but if it's not let me know and 
I'll send it to you if SideFx agree.

François

Alvin Yap wrote:
> Hi!
> Off my head, I assume you are going to be using a Wire Object/Solver 
> inside DOPs for doing the sim.
>
> Inside the Wire Object you will want to play with the Angular Spring 
> Constraint. That controls how flexible/bendy the wires are. Linear 
> Spring constraint controls how stretchy the hairs are. You can also play 
> with the damping to slow down the stretching/bending.
>
> You can also apply e.g. kangular at the sops level, so specific points 
> e.g. towards the edges, have a lower kangular value so they move more, 
> and towards the roots of the hair, have a high kangular so that they are 
> less affected by say gravity.
>
> I also like to turn "Adjust For Length" off, it gives me a better feel 
> for the simulation.
>
> HTHs!
>
> Alvin
>
> Marc-Andre Carbonneau wrote:
>   
>> Hi,
>>
>>  
>>
>> Say I combed my hair in a style my art director likes.
>>
>>  
>>
>> Now I want to apply dynamics but I want my hair to be stiff...as if I applied spray.
>>
>> I want my hair style to keep its shape the best it can while still being affected by forces like gravity and wind.
>>
>> How do I achieve that? Which node do I need?
>>
>> thanks
>>
>>  
>>
>> Marc-André Carbonneau
>>
>> VFX artist 
>>
>> Ubisoft Digital Arts
>>
>> Montréal
>>
>> 514.490.2000 x:3443
>>
>>  
>>
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