How to boole a VDB ?

[lalalem]

Is it possible ? I need to cut a part of a vdb cloud I got.

[bepeg4d]

Hi,
first thing that comes to my mind is Sculptron:
viewtopic.php?f=144&t=77532

ciao Beppe

[lalalem]

Thanks bepe, I'll give that a look. Is there nothing else I can use inside C4D/Octane ?

[bepeg4d]

Hi,
Sculptron is a very powerful tool, especially for creating animated vdb sequences, starting from a static vdb asset, but probably even too much for a simple vdb boolean operation.

Try these steps:
- merge the vdb asset in your scene:

- place it as a child of a Volume Builder object, and set the Volume Type to Fog.
- apply an Octane Object Tag, go to Particles tab, and create the Medium node, with your preferred settings.
- add any mesh as child of Volume Builder, and set the mode to Subtract.
- Done!

Happy VDB GPU rendering,
ciao Beppe

[lalalem]

Grazie mille Beppe!! This is excellent!