Merge pull request #1073 from Idclip/tsc_notes

Added TSC notes

Author: Idclip

tsc/meetings/2021-05-18.md

@@ -0,0 +1,95 @@
+Minutes from 91st OpenVDB TSC meeting, May 18th, 2021, (EDT)
+
+Attendees: *Nick* A., *Ken* m., *Jeff* L., *Dan* B., *Andre* P.
+
+Additional Attendees: Jeff Budsberg (DWA), JT Nelson (Blender),
+Johannes Meng (Intel), Bruce Chernaik (Intel), Sergio Rojas
+
+Agenda:
+
+1) Confirm Quorum
+2) Secretary
+3) Project showreels for SIGGRAPH
+4) 8.1 Progress Update
+5) V9.0
+6) VDB Extrapolate / Fast Sweeping Questions
+7) SIGGRAPH course
+8) Blind Data (PR1050)
+9) DynamicNodeManager Grain Size (PR1024)
+10) Next Metting
+
+
+1) Confirm Quorum
+
+Quorum is present.
+
+2) Secretary
+
+Secretary is Nick Avramoussis.
+
+3) Project showreels for SIGGRAPH
+
+The TAC has asked for updated media material from each ASWF project to be able
+to update each project's showreels. Any and all material that showcases VDB in
+production is valid. Individuals with available material should look to contact
+Rachel Romoff at the ASWF.
+
+4) 8.1 Progress Update
+
+All known issues have been fixed and merged. The targeted release date is the
+week beginning 31st May (~2 weeks from this meetings date). ILM, DNEG and
+SideFX able to test. Jeff to merge consolidation of pendingchanges and Dan to
+create a 8.1 branch which represents the release milestone. Ken to check any
+outstanding EXR build issues.
+
+5) V9.0 & VFX Platform
+
+The VFX platform draft for 2022 has been published with VDB still listed as 8.0.
+The VFX platform has not reached out this year for confirmation though they do
+want to start working more directly with ASWF projects. Jeff contacted VFX
+platform for comment - current policy is that they do not add new versions
+until they are available. Jeff, they should not list versions in the draft
+unless they have been somewhat confirmed (instead leave them blank). It would
+be good to have them attend the TAC meetings. 9.0.0 is targeted for November.
+Dan, we could do a release candidate for 9.0.0 so that it at least exists.
+This would really be a last resort.
+
+6) VDB Extrapolate / Fast Sweeping Questions
+
+Dan, when should the Renormalize SDF mode on the Extrapolate SOP be used over
+the Renormalize SDF SOP. The SOP seems to be faster than the extrapolate.
+Renormalize solves the eikonal equation on every voxel in the narrow band,
+where as fast sweeping only performs 8 sweeps. However the sweep orientation/
+direction effect performance in relation to the topology structure of a SDF.
+Fast sweeping should not move the interface at interval steps (8, 16. etc)
+where as renormalize will. The real power of the fast sweeping tools are
+extension and extensibility (e.g. it can do asymmetric narrow bands).
+Renormalize SDF SOP propagates 1 voxel at a time such that the performance
+will scale with the narrow band size, in comparison the fast sweeping will
+scales more on the topology layout relative to the sweep orientation.
+No clear answer, more testing to be done in this area. Majority consensus
+that having two tools to do the same thing in Houdini isn't a big problem.
+
+7) SIGGRAPH course
+
+Deadline is May 28th to provided JT Nelson each contributors video clip. Title
+slides only need to exist at the start of the presentation. JT has already been
+provided a test by Jeff Budsberg which seems to play and compress well. Each
+contributor has 36 minutes to present. The current order and topics are as
+follows:
+ - Ken. Intro and NanoVDB
+ - Jeff L. NanoVDB adoption
+ - Jeff B. OpenVDB in production
+ - Rich. OpenVDB AX
+ - Dan. OpenVDB Merging/Writing fast parallel algorithms
+Ken to handle intro slide, Dan to handle end slide.
+
+8) Blind Data (PR1050)
+9) DynamicNodeManager Grain Size (PR1024)
+
+Time.
+
+10) Next meeting
+
+Next meeting is May 25th, 2021. 12pm-1pm EST (GMT-5).
+Nick to present some AX topics on the 1st June (or the next meeting after 25th)