Hello

I'm looking for a tool to create smoke and then export a vdb file to use it in Octane render.

Can I do it with Blender?

Thanks for your help

Hello Smaker

Not familiar with how Octane is set up but from looking thru some of my resources all seem to point back to this plug in that is offered with in the Octane forums for exporting from Blender to Octane https://render.otoy.com/forum/viewtopic.php?f=32&t=21412 I hope this helps some till some one else with in our forum with more familiarity chimes in

Lobo3433

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Thanks Lobo for your help

I should have mention it:

• I don't have Blender and don't use any plugin but export (obj) to render in Octane stand alone.
• The last version of Octane integrate vdb file to render smoke. I tried with a sample I found in the Otoy forum and I'm impressed with the result.
• I'm now looking for a solution to generate smoke export (vdb format). Perhaps Blender could be the answer

If someone already tried or can make an export sample for me to see if it works in Octane I would be the happiest man...and perhaps a new user of blender! :-)

Blender 2.77 has native support for OpenVDB caching for rendering with Cycles. It saves in .vdb format cache, but I don't know about how it's exchanged with other renderers.

https://www.blender.org/manual/de/physics/smoke/baking.html

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Thanks Luxxeon

It's time to learn Blender to try some tests!

Just keep in mind I'm not sure Blender can transfer vbd files out for use in other engines. From what I've read so far, it's used internally for Cycles rendering of smoke physics, and I don't see an export option to .vbd cache either. It's worth a look, but I'm not confident it can exchange the data format with other engines at this time.

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So I installed Blender and followed a Youtube tutorial on smoke simulation, bake the simulation (openvbd). After some tries and errors : it seems to work!!

A very bad smoke simulation exported and rendered in Octane without any material applied. I must learn Blender now!!!

Well done!

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Second test!

and a problem: When I select fire in blender I have 3 meg files but when I import in Octane : nothing is rendered It also seems that with fire and smoke I only have the smoke Are there differences between the two?

Have a look at this page. It contains some vague but useful info about the way OpenVDB caches information from simulations in Blender. It seems to all depend on simulation settings. https://wiki.blender.org/index.php/User:Kevindietrich/OpenVDBSmokeExport

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Hello

last experiments and raw renders from Octane. I'm far from mastering everything but it looks promising. I must now integrate Blender in my workflow :-)

Hi Smaker1, i m trying to create fog/mist in blender 2.8, and import into octane using the vdb file too, sadly i have no.idea how to export from blender as a vdb, would you be so kind to explain ( of course someone else too if know the answer) how to do it? Or just a link to some youtube tutorial? Thanks in advance!