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Over the years VDB has been interpreted to mean different things, none of which are very descriptive: "Voxel Data Base", "Volumetric Data Blocks", "Volumetric
Dynamic B+tree", etc. In early presentations of VDB even a different name was used, "DB+Grid", which was abandoned to emphasize its
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distinction from similarly named, but different, existing sparse data structures like DT-Grid or DB-Grid. The simple truth is that "VDB" is just a name.
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applications. Volumetric effects apply to volumes, as opposed to just on surfaces. An example is fog.
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Specifically catering for feature film production, the library was originally developed by
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