I finally have a solution thanks to the guys over at Insydium.

Entering a value of -1 to the VDB volumes Z axis for size fixes this issue. Fog volume appears in the right place and the right way around!

Also if you're planning on using Xparticles with R20s volume building it requires the same fix ...

Thanks for the reply.

Definitely seems to be Xparticles then. Tried the same thing at work with R20 and the cinema volume builder and I get the same mirrored version. Must be missing an option somewhere or perhaps theres a bug in the openVDB export in Xparticles.

Will post over on the Xparticles ...

Still getting mirrored if you're not dead on the 0 point center of the world.

Am I just missing an option somewhere? Or is this just not supported properly?

It's incredibly frustrating.

Hey guys

Wanted to provide an update on this issue as I have recently revisited it and its still present.

This is using the latest version of XParticles and V4.03 of Octane.

It seems to be related to the Z axis. In the this screenshot you can see my animation of smoke trails following some ...

Having an issue using a fire animation generated in xparticles.

The animation consists of a cube on fire that rotates 360 counter clockwise, I cache the animation to openvdb and load it into a vdb volume. Once I do this however the whole animation is mirrored and rotates the opposite direction ...