There may be more optimal ways to handle explosions but irregardless it
shouldn't cause region crashes. So its a good test case for the region
code in addition to physics. Looked like there was some "jostling"
going in between bricks as well so some of it might be many collisions
being reported where some tuning would yield better results.
Irregardless it's an awesome start and an important test framework for
the region server as well as a baseline for physics experiments. Great job!
Mike
On 4/14/15 9:39 AM, Mister Blue wrote:
Excellent testing!!
Using individual bricks will cause a lot of network traffic as the
protocol will send position updates for every individual brick. Most
games do explosions with an 'explosion' effect that happens on the
client so all the updates don't have to go over the network. This mass
of updates could also be what causes the crashes where there are
multiple avatars as every brick movement must be sent to every avatar.
== mb
On Tue, Apr 14, 2015 at 6:33 AM, Michael Emory Cerquoni
<nebadon2...@gmail.com <mailto:nebadon2...@gmail.com>> wrote:
Could these test scripts be shared so testing against other
engines can occur as well, I would be interested to see how this
same test goes against ODE and BulletSim as well.
On Tue, Apr 14, 2015 at 8:18 AM, Maxwell, Douglas CIV USARMY ARL
(US) <douglas.maxwell3....@mail.mil
<mailto:douglas.maxwell3....@mail.mil>> wrote:
Good Morning, as you all know the MOSES developers are working
on PhysX integration into the Open Simulator to support
functionality currently not possible in the platform. We are
a methodical group and a couple months ago I asked one of our
interns to work with the developers to create a series of
baseline physics behavior case studies. The first case study
is a destructible wall caused by an explosive charge. This
wall is composed of blocks that are tested at a high density
and a low density to simulate different destruction effects.
The goal here is to eventually have all of the prims in the
sim loaded with the scripts needed to react to any type of
random explosive charge set by the participants in the
training scenario.
The video can be found below:
https://youtu.be/jSofWcwWi7g
Your feedback is welcome.
Observations:
1) Current limitations of the open simulator prevent us from
expanding the tests beyond a simple wall.
2) The scripts exercise the engine well and expose
limitations between the sim frame rate and the physics frame rate.
3) It is easy to crash the sim with this demonstration,
especially if more than a handful of people are present (more
than 3-4 client connections).
Douglas Maxwell, MSME
Science and Technology Manager
Virtual World Strategic Applications
U.S. Army Research Lab
Human Research & Engineering Directorate
Simulation & Training Technology Center
(c)(407) 242-0209 <tel:%28407%29%20242-0209>
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Michael Emory Cerquoni
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