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Using vdb advect points node


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Hi all,

 

I was wondering if anyone had given the vdb advect points a shot? I’m trying to move some points along an sdf and am not having much success either with Projection or Constrained Advection.

 

I’ve attatched a .hip file, but in terms of results what I'm getting: 

 

  1. Advection: Works fine
  2. Projection: Doesn’t appear to do anything
  3. Constrained Advection: Crashes Houdini 
 

Has anyone else had any luck with this node? I’m not sure whether it's just I’ve set it up wrong,  or giving it the wrong input...

 

 

Cheers,

 

Julian  

vdb_advect_pt.hip

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Hey csmnt, thanks for that file; really useful overview of vdbs in Houdini :)

 

It looks like I was missing something straightforward; you need to attach a ​vdb analysis node and set it to closes point before connecting it to the closest point input.

 

Attached the fixed hip in case anyone is interested :)

vdb_advect_pt_fixed.hip

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