[Sidefx-houdini-list] Billowy Smoke not "sticking" to Volume primitives

craigleehoffman at aol.com craigleehoffman at aol.com
Wed Feb 25 16:13:39 EST 2009


 


 No- the volume shapes animate via a VolumeMix expression based on $LIFE, etc.

-c-


 

-----Original Message-----
From: Louis Dunlevy <louisdunlevy at gmail.com>
To: sidefx-houdini-list at sidefx.com
Sent: Wed, 25 Feb 2009 1:07 pm
Subject: Re: [Sidefx-houdini-list] Billowy Smoke not "sticking" to Volume primitives










Can you instance the volumes instead? Then your "object" space is going
to be very clear cut.. just a thought

craigleehoffman at aol.com wrote:
>  
> Haven't investigated this too much, but wondered if anyone had a quick fix for 
this.
>
> Basically I have a Copy SOP copying Volume Primitives onto moving particles 
and I noticed when adding the Billowy Smoke shader from the Material Palette 
that the Noise doesn't follow the Volumes as they moved.? I dove down into the 
Shader and set the "restpos" Node from "Texture" to "Object" and still no dice.
>
> Since I am dealing with Volumes, is the proper thing to create new Volumes for 
x, y, & z Rest Position attributes like you do for motion blur velocity and then 
reference those attributes in the shader?? Or is there something easier?
>
> Thanks,
> Craig
> ?
>
>
>
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