Particle advection using Axiom solver?

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I have successfully been able to advect particles using pyro solver of Houdini. I simulate a smoke, and then using it, I advect the particles.



However, when I try to use Axiom solver now inside the DOP network, it does not show up. It only shows up inside a SOP network.


How do I proceed with using Axiom solver instead of pyro solver for generating smoke and using that to advect the particles?
Edited by proceduralist - Sept. 29, 2022 07:24:30

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PARTICLE FALL_AXIOM TRY.hip (2.1 MB)

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Hey proceduralist,

why not use a popnetwork for the particles and use a popadvectbyvolumes node and select the axiom Sop simulation from there?

Cheers
CYTE
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The Axiom solver won't show up inside DOPs, just in SOPs and you just need the velocity from the solver to advect.
So just use the Axiom to create your sim and as Cyte mentioned then create a pop network and use the pop advect volume node.
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Wow!! That sounds so simple and effective! I am not in front of my laptop right now. But really man!! Why was I overthinking? Life can be so simple sometimes. Just one SOP and one DOP! Boom. Definitely gonna try and post my results!! Thanks a lot @sepu and @CYTE!
Edited by proceduralist - Sept. 29, 2022 13:56:46
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Alright. Just tried again. Not working.
Edited by proceduralist - Sept. 29, 2022 14:21:13

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PARTICLE FALL_axiomnew.hip (1.2 MB)

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You cant simply blast an vdb like that. it is empty afterwards. check it. simply add the axiom solver via sop this way:

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Screenshot 2022-09-29 203025.jpg (32.1 KB)

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CYTE
simply add the axiom solver via sop this way:

Thanks a lot. That worked! I don't understand the principle behind this. Even though same stuff is being transfererred in the second node of DOP to do the simulation, why does choosing 'SOP' option work instead of the 'second context geometry'?


CYTE
You cant simply blast an vdb like that. it is empty afterwards. check it.

Where do I check? What exactly is empty afterwards? The vdbfrompolygons node remains same.
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