Meeting Notes 26th March 2025

tsc/meetings/2025-03-26.md

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+Minutes from OpenVDB TSC meeting, March 26th, 2025
+
+Attendees: *Dan* B., *Andre* P, *Jeff* L., *Nick* A., *Greg* H.
+
+Additional Attendees: Dhruv Govil (Apple), Mathew Cong (NVIDIA),
+
+Regrets: *Ken* M.
+
+Agenda:
+
+1) Confirm quorum
+2) Secretary
+3) PR1935
+4) PR2016
+5) NanoVDB PointsToGrid Hashing
+6) New VDB Release
+7) PR2008
+8) PR2011
+9) Next Meeting
+
+------------
+
+1) Confirm quorum
+
+Quorum is present.
+
+2) Secretary
+
+Secretary is Dan Bailey.
+
+3) PR1935
+
+Levelset Tapered Tubes. Dan has approved, does not need another approval as Greg is TSC member,
+Greg can merge.
+
+4) PR2016
+
+Jeff fixed a NanoVDB bug with a missing assignment during transpose that prevented round-tripping.
+Remains to be seen how many downstream consumers will need to adapt as a result. Nick suggested
+adding nodiscard keywords to the transpose methods to generate compiler warnings for these cases.
+
+5) NanoVDB PointsToGrid Hashing
+
+Jeff has implemented a faster version of points to grid hashing that does not sort. As a result
+this method is non-deterministic. For cases where this doesn't matter can be much faster. Andre
+confirmed that NVidia has a similar Cuda implementation but has not been made open-sourced.
+
+6) New VDB Release
+
+Nick to do the release now CI is looking healthier.
+
+7) PR2008
+
+This has huge impact on Windows, but ultimately should apply to Linux as well. Needs another
+approval.
+
+8) PR2011
+
+Andre working through supporting half in math functions for Vec3 types. Currently failing
+Windows CI.
+
+Autodesk still interested in instantiating half grids when reading float grids from disk. Main
+motivation is to reduce peak memory usage. Brief discussion of a more substantial change to be
+able to convert any convertible grids on load. Simpler solution of only handling float->half
+conversion is less likely to stall.
+
+9) Next Meeting
+
+April 9th, 2025, usual time