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VDB File Format Explained
OpenVDB (VDB) is an open-source C++ library comprising a hierarchical data structure and tools for the efficient storage and manipulation of sparse volumetric data, with an associated .vdb file format. Originally developed by DreamWorks Animation, it is widely used in high-end visual-effects workflows involving gaseous and volumetric simulations.
| Icon | Extension | Original Software | Year | Primary Industry | Geometry | UV Maps | Textures | PBR | Animation | Rigging | Open Use | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| .VDB | OpenVDB 3D | 2012 | VFX Simulation | Volumetric Grid | – | – | – | ✔ | – | ✔ | |
VDB File Format DetailsWhat It StoresThe format stores sparse volumetric grids, including density, velocity, temperature, and color data. It uses a hierarchical tree-like data structure optimized for sparse grids such as narrow-band level sets and fog volumes, avoiding explicit storage of empty space. Primary Use Cases
Strengths
Limitations
Common Software SupportCommon Software Support Supported by Houdini, Blender, and Cinema 4D for OpenVDB volume workflows. Maya and Katana can use OpenVDB through supported renderer or pipeline integrations such as Arnold, RenderMan, Redshift, or other compatible volume workflows. Major renderers such as Arnold, RenderMan, V-Ray, Redshift, and OctaneRender support OpenVDB grids for volumetric rendering. Unreal Engine supports importing VDB files into Sparse Volume Texture workflows. | ||||||||||||