Brains and Explosions: A Simple VDB Writer for Python
summary
Claims a working VDB writer that is Neurovolume: a low-dependency Python library, implemented with a Zig backend with NumPy interface, and intentionally avoids Docker and heavy C++ bindings. Shows a pipeline that converts NumPy arrays (fMRI, CT, satellite) into VDB grids, prunes tiles to cut file size (about 40% disk savings in one example), interpolates low-frame-rate data for smooth playback, and exports files that load into Blender — a minimal but functional toolchain that actually produces renders.
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chapters (13)
- 0:00Neuro volume and VDBs
- 1:09VDB writer in Python
- 3:16VDBs in 3D graphics
- 8:08PyOpenVDB and Docker issues
- 10:10Rewriting VDB writer
- 12:14Neuro volume with NumPy and Zig
- 15:24Zig for VDB backend
- 17:30Python interface and memory
- 18:34MRI and fMRI data
- 21:42fMRI analysis meets VFX
- 22:47Toy fMRI visualization
- 25:36Data visualization reflections
- 27:21Acknowledgments
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