Clarification (UNCLASSIFIED)

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Clarification (UNCLASSIFIED)


I've gotten a couple DM's regarding Sean, so this email is to address his departure.

Dr. Sean Mondesire was part of the Oak Ridge Associated University's Army Research Lab Postdoctoral Fellowship Program.  He worked for ARL as a postdoc researcher for a two years as part of a normal rotation.  In May, his time with us expired.  Sean was an absolute pleasure to work with, he did an excellent job and produced almost two dozen published works while with us.  We will miss him and we wish him the best of luck at his next job.  I'm sure if he stays in this trade space, we will be working together again in the near future.

He has left the MOSES community in a better position than when he found it and we are grateful.  v/r -doug

Douglas Maxwell, Ph.D.
Science and Technology Manager
Virtual World Strategic Applications
U.S. Army Research Lab
Human Research & Engineering Directorate
(c) (407) 242-0209

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Heilmann, Michael
Sent: Friday, June 17, 2016 8:20 AM
To: [hidden email]
Subject: [Non-DoD Source] [Opensim-dev] MOSES physx work

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Opensim Developers

The MOSES team has wrapped up their current efforts on the PhysX investigation, and have made it available at  < Caution- > Caution- < Caution- >

Dr Sean Mondesire, who lead this effort along with Dr Glenn Martin, has left the organization.  I am summarizing his efforts and the contents of the repository here:

We were investigating the use of the newly open-sourced PhysX physics engine from Nvidia, and its potential effects on the number of Avatars and the number of Physical objects in a Simulator Region.  We selected OpenSimulator to perform this investigation.  The investigation took two routes: A local Physx module as a peer to the current Bullet physics module, and a remote PhysX module where physics calculations could be performed on a separate machine.  In order to minimize the work and create a stable baseline for our comparisons, we froze the OpenSimulator version we were working with.  This was both to prevent our developers from having to constantly rebase during the new development, and also to prevent new work from the OpenSimulator community from affecting our comparisons.  Our fork is a little after commit c4f86309683bc8db0bdeabddcefd78bb72b178b6, where Dr Martin and his team were working.  We are effectively at tag 24383.

Dr Mondesire had been publishing his interim results to this mailing list, so I will not rehash them here.  Due to licensing problems, which we are still working out, we have not included any binaries beyond what the OpenSim community already includes.  The libraries from Dr Martin's lab are permissive, but the NVidia license is too vague for our comfort as both a Florida State institution, as well as an Army Research Contractor.  The updated references our redmine page at Caution- < Caution- >  which details build instructions for building the components as we used them.

While our work was beneficial to us, we hope that it may be beneficial to anyone in the community.  We invite anyone interested to have a look and play around with the modifications we have made.  Thank you for your help in this multi-year project.

Michael Heilmann

Institute of Simulation and Training

University of Central Florida

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