[Opensim-dev] Make ODE and Meshmerizer the default options?

Thu Sep 10 09:26:35 UTC 2009

On my server, Meshmerizer seems to crash during the boot...
(mono 2.4, OpenSuse 11.1 32 bits)

http://opensimulator.org/mantis/view.php?id=4133

So I use zeromesher.

Christophe

On Thu, Sep 10, 2009 at 8:58 AM, Nebadon Izumi <nebadon2025 at gmail.com>wrote:

> Ya i think we have reached a point now where people who try OpenSim are
>> more confused with why prims are phantom, it seems to jam some people who
>> are less than willing to just come out and ask for help the 1st day for fear
>> of feeling bothersome right away, i have seen on OSgrid some people struggle
>> with it for days trying to find info on their own without asking only to
>> break down after long struggle and ask what the heck is going on... It seems
>> to me its actually doing the exact opposite of what we originally intended
>> for it do for everyone, anyway just my obvservation from the OSgrid
>> perspective.. just one less question we  have to answer every week.
>>
>> Neb
>>
>>
>> On Wed, Sep 9, 2009 at 11:45 PM, Stefan Andersson <lbsa71 at hotmail.com>wrote:
>>
>>>  Yes,
>>>
>>>
>>>
>>> One of the main reason for introducing, and keeping, .Net-only modules
>>> for physics was to ensure minimal friction on first install.
>>>
>>>
>>>
>>> One option would be to work on the installation procedure; to add an
>>> “engine” configuration step to initial setup, having ODE as default; this
>>> would let us document caveats in the configuration instructions.
>>>
>>>
>>>
>>> I see no problem with switching to Meshmerizer as default though; +1 on
>>> that.
>>>
>>>
>>>
>>> /Stefan
>>>
>>>
>>>
>>> *From:* opensim-dev-bounces at lists.berlios.de [mailto:
>>> opensim-dev-bounces at lists.berlios.de] *On Behalf Of *dz
>>> *Sent:* den 9 september 2009 21:25
>>> *To:* opensim-dev at lists.berlios.de
>>> *Subject:* Re: [Opensim-dev] Make ODE and Meshmerizer the default
>>> options?
>>>
>>>
>>>
>>> Justin,
>>>
>>> The wiki still has sections indicating that some linux platforms may
>>> require a rebuild of the ODE software.  This may be me mis-reading the wiki,
>>> or it may be old info.
>>> Because we run on 64 bit linux (Ubuntu 9.04 server), we do Mono and ODE
>>> builds from source anyway.  It would seem, however, that if some of the
>>> linux platforms will not run ODE "out of the box", it may be a reason to
>>> stick to the current default.  Im sorry I dont have any way to test and see
>>> if the wiki information is outdated.
>>>
>>> If ODE is made the default, please add some information to the wiki
>>> documentation describing the configuration flags used to build it.  This may
>>> provide the basis for discussions on the impact the build parameters have on
>>> performance.  You may also want to note that using the ODE engine uses a LOT
>>> more memory than the current defaults.
>>>
>>> I really dont have a preference one way or the other, except to say that
>>> having a 'default' configuration that works in the majority of installations
>>> seems a better idea than one likely to trigger posts to forums complaining
>>> about a "more complicated" setup.   Maybe the transition to ODE later
>>> provides a "built in" delay for beginning administrators to get thier feet
>>> wet, find out what they want to tweak, and might insure they look at the
>>> wiki for directions :)
>>>
>>> Doug Osborn
>>>
>>> On Wed, Sep 9, 2009 at 11:17 AM, Justin Clark-Casey <
>>> jjustincc at googlemail.com> wrote:
>>>
>>> In the OpenSim developer's meeting yesterday on OSGrid we had a
>>> discussion about
>>> making ODE the default physics engine and Meshmerizer the default mesher.
>>>
>>> Currently, basicphysics is the default physics engine but the general
>>> response
>>> was that everybody quickly switches to ODE since objects can only be
>>> phantom
>>> under basicphysics.
>>>
>>> The disadvantage with switching to ODE is that 64 bit Windows users would
>>> have
>>> to run bin/OpenSim.32BitLaunch.exe since there is currently no compilable
>>> 64 bit
>>> Windows ODE (though there is a Linux one).
>>>
>>> Everybody at the meeting felt that the advantages of going with ODE
>>> outweighed
>>> this disadvantage.  Does anybody on the list have a good reason for not
>>> switching defaults?
>>>
>>> As for meshing, ZeroMesher is currently the default.  However, this
>>> implements
>>> extremely basic meshing (non rotatable cubes).  In comparison,
>>> Meshmerizer is
>>> much more sophisticated.  There was strong feedback in the meeting that
>>> many
>>> people quickly switch to Meshmerizer and that it would be good to make
>>> this the
>>> default.  Anybody have good counter-arguments to this?  I think there is
>>> potentially some performance impact but users sophsticated enough to
>>> encounter
>>> that can always switch back to ZeroMesher.
>>>
>>> --
>>> justincc
>>> Justin Clark-Casey
>>> http://justincc.org
>>> _______________________________________________
>>> Opensim-dev mailing list
>>> Opensim-dev at lists.berlios.de
>>> https://lists.berlios.de/mailman/listinfo/opensim-dev
>>>
>>>
>>>
>>> _______________________________________________
>>> Opensim-dev mailing list
>>> Opensim-dev at lists.berlios.de
>>> https://lists.berlios.de/mailman/listinfo/opensim-dev
>>>
>>>
>>
>>
>> --
>> Michael Emory Cerquoni - Nebadon Izumi @ http://osgrid.org
>>
>> _______________________________________________
>> Opensim-dev mailing list
>> Opensim-dev at lists.berlios.de
>> https://lists.berlios.de/mailman/listinfo/opensim-dev
>>
>
>
-- 
Thanx to free software.
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