2. OpenvdbOpenVDB - Sparse volume data structure and tools
4. ImathImath is a C++ and python library of 2D and 3D vector, matrix, and math operations for computer graphics
5. OpencolorioA color management framework for visual effects and animation.
6. OpenexrThe OpenEXR project provides the specification and reference implementation of the EXR file format, the professional-grade image storage format of the motion picture industry.
7. OpencueA render management system you can deploy for visual effects and animation productions.
11. wg-usdUSD Working Group collaboration and resources