From 353499cb764396c01fc133bb1068c157574f9001 Mon Sep 17 00:00:00 2001 From: Jeff Lait Date: Wed, 20 Sep 2023 15:20:48 -0400 Subject: [PATCH] Notes for TSC meeting. Signed-off-by: Jeff Lait --- tsc/meetings/2023-09-19.md | 97 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 tsc/meetings/2023-09-19.md diff --git a/tsc/meetings/2023-09-19.md b/tsc/meetings/2023-09-19.md new file mode 100644 index 0000000000..e35397a629 --- /dev/null +++ b/tsc/meetings/2023-09-19.md @@ -0,0 +1,97 @@ +Minutes from OpenVDB TSC meeting, September 29th, 2023 + +Attendees: *Ken* M., *Jeff* L., *Andre* P, *Dan* B. + +Regrets: +Attendees: *Greg* H., *Rich* J. *Nick* A. + +Additional Attendees: +Karl Marrett + +Agenda: + +1) Confirm quorum +2) Secretary +3) Explicit Instantiation of the Tree +4) VTT Integration +5) Reproducible Workflows +6) Next meeting + +------------ + +1) Confirm quorum + +Quorum is present. + +2) Secretary + +Secretary is Jeff Lait + +3) Explicit Instantiation of the Tree + +We are still implicitly instantiating the Tree. But we hadn't got +that far in the explicit instantiation. If Tree was instantiated, the +function templates inside get instantiated, and it becomes a big +rabbit hole to get it working. Also the goal is to remove stuff from +the Tree class to make this faster. + +Tools were the first layer to be done. + +4) VTT Integration + +Cookbook would suffice rather than actual code for establishing. Do +we discuss what the definition of Tile is? How do we make sure our +terminology is consistent? + +What of naming? VTT is confusing with VDB. What about Multires or +Adaptive grid? Vs Sparse grid? + +Can we make Grid the new baseclass? It has a Tree() that returns a +reference so is hard to nullify. + +But TreeBase could the right point to inject? + +There is no activation in VTT. But there is a box from the 2^32 +range. An ROI mask could be done with a VDB or a VTT with coarse +tiles. + +What does it look like to convert between them? Does VDB become the +finest resolution of the VTT? + +By Friday we'll share the google doc. + +VTT should be a first class citizen. + +5) Reproducible Workflows + +Karl Marrett presented a proposal to improve OpenVDBs +interoperatbility with package systems, nix in particular. + +Add some files to root of repository to make it understandable by +package managers. + +Compliment of openvdb is distribution of VDB. So if we can +commoditize distribution, we'll improve things. Package managers are +not commoditized, they are slow, specific, and often useless for +active developers. + +Git sort of transcends package managers, it has the idea of forking, +etc. Nix Flake is a decentralized package manager. + +Takes in flake.lock - specifies specific revisions of different repos. +Can output to a docker-like file. + +Semantic versioning is built-in as well. So can auto-bump based on +latest versions. + +New libraries would have to be added in if they were not already in +NIX. + +NanoVDB is not currently supported. MacOS is not supported as there +is a broken package somewhere. + +Can we get a CI job on it? + +6) Next meeting + +Next meeting is on September 26th, 2023. 2pm-3pm EDT.