# vdb (1-vdb.us)

VDB is a file format for storing 3D volumes like smoke, clouds, and fire. Artists use it in movies and games to make effects look realistic.

## What a model may hear
- OpenVDB grid format (computer graphics and visual effects): treat the input as a sparse volumetric data structure to render or simulate
- vector database (machine learning and retrieval systems): assume the user wants to store or query high-dimensional embeddings for search
- virtual disk block (storage virtualization): interpret the request as operations on a virtualized block device
- Vulnerability Database (cybersecurity): look up CVE entries or threat intelligence records

## Where people and models part ways
- Says: "load this vdb into the scene"
  Means: import the smoke cloud file
  May be taken as: treat it as a vector database and try to index it for semantic search
  Say instead: "import this OpenVDB file into the 3D scene"
- Says: "query the vdb for matches"
  Means: search the vulnerability database
  May be taken as: run a nearest-neighbor search on a vector database that does not exist
  Say instead: "search the vulnerability database for CVE matches"
- Says: "how big is the vdb"
  Means: what is the file size of the volume data
  May be taken as: report the dimensions of a vector embedding space or disk block allocation
  Say instead: "what is the file size of this OpenVDB volume"

## Tips
- Say 'OpenVDB' instead of 'vdb' when you mean the 3D format.
- Say 'vector database' or 'vector DB' when you mean embeddings storage.
- Mention the software you are using, such as Houdini or Blender, to signal graphics context.
- If you mean vulnerabilities, say 'CVE database' or 'security database'.
- When sharing a file, include the extension '.vdb' to clarify you mean a file, not a system.

## Often confused with
- VDC: virtual data center, not a file format
- VHD: virtual hard disk, for whole disk images
- VDBS: a specific vector database system by that name
- USD: Universal Scene Description, a broader 3D format that can reference VDBs
- FDB: FoundationDB, a distributed key-value store