VDB, Voxels, and Python in Houdini

There are two ways to create volumes in Houdini: the Volume method from Houdini, and VDBs from the OpenVDB project. Both methods store parts of a volume with voxels. Today, we make a VDB - both a surface and fog volume - and inspect the voxel data using the HOU Python module in Houdini.
#houdini #houdinifx #sidefx #sidefxhoudini

[@sparshpriyadarshi]

this is the best introduction to people trying to understand the data structure from a programming perspective. thanks!

[@mohammadvasegh1754]

Thank you, it was just what I needed.

[@KonstantinMagnus]

Really well explained! Would be great to see more elaborate things being done with VDBs and Python.

[@socraticafx]

Thanks! I was thinking of exploring the use of Python in parameter expressions, Python sessions, and perhaps creating a custom node with the Python SOP. I recently had some fun racing Python & VEX. Is there a particular use of VDBs you're interested in?

[@KonstantinMagnus]

@@socraticafx All this sounds very useful. What I was messing around with after watching your tutorial was writing image data into volumes using vdb.setVoxelSlice(). But probably there is cooler stuff Python can do I am just not aware of?

[@MDA_01]

Excellent, thank you.

[@sakibkhondaker]

Well Explained