points flowing throught volume grid

[gangland]

Hey guys i trying to create a few points floating within an volumefield.

i created an density field with a bunch of noises multiplying the values also an offset in X

made an points source.

i feed a solver sop with an vdb adect points inside it.

it gives an error expecting an vector3f, i dont know whats going on.

for debuging the behavior, i used an pop advect volumes with an pop solver, its just give an diagonally wiggle 

 

vdb_adect.hip

Edited February 22, 2022 by gangland

[Atom]

Check out the help card for the vdbadvect. You need to supply a velocity field. The density you are supplying is essentially a float, and as the error message indicates, you need a vector like vel.x, vel,y, vel.z merged together. Also, make sure to type the name of the vdb primitive into the Velocity VDB field.

 

 

Edited February 22, 2022 by Atom

[gangland]

2 hours ago, Atom said:

Check out the help card for the vdbadvect. You need to supply a velocity field. The density you are supplying is essentially a float, and as the error message indicates, you need a vector like vel.x, vel,y, vel.z merged together. Also, make sure to type the name of the vdb vector into the Velocity VDB field.

 

 

 

Thanks bro.

 

i realized the lacking of basics concepts.

Found the solution of this waaaaay old masterclass, this most basic stuffs blew my mind.

cheers