OpenVDB - Sparse volume data structure and tools
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pcucka Merge pull request #286 from pcucka/particles_to_mask
Fast particle to mask rasterization; minor improvement to Visualize SOP
Latest commit c3ff8eb Nov 14, 2018


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OpenVDB is an open source C++ library comprising a novel hierarchical data structure and a large suite of tools for the efficient storage and manipulation of sparse volumetric data discretized on three-dimensional grids. It was developed by DreamWorks Animation for use in volumetric applications typically encountered in feature film production.

Development Repository

This GitHub repository hosts the trunk of the OpenVDB development. This implies that it is the newest public version with the latest features and bug fixes. However, it also means that it has not undergone a lot of testing and is generally less stable than the production releases.


OpenVDB is released under the Mozilla Public License Version 2.0, which is a free, open source, and detailed software license developed and maintained by the Mozilla Foundation. It is a hybrid of the modified BSD license and the GNU General Public License (GPL) that seeks to balance the concerns of proprietary and open source developers.


Developers who wish to contribute code to be considered for inclusion in the OpenVDB distribution must first complete the Contributor License Agreement and submit it to We prefer code submissions in the form of pull requests to this repository. All code should adhere to the OpenVDB coding standards, and every commit must be signed off. That is, every commit log message must include a “Signed-off-by” line (generated, for example, with “git commit --signoff”), indicating that the committer wrote the code and has the right to release it under the MPL 2.0 license. See for more information on this requirement.