[X3D-Public] Open-Source Multi-User

GLG info at 3dnetproductions.com
Wed Feb 3 04:54:14 PST 2010


Hello Christoph,

My comments specifically apply to server side. I'll make
sure to take a look at your NetworkSensor implementation
later tonight. Thanks for the link.

Cheers,
Lauren


________________________________________
From: Christoph Valentin [mailto:christoph.valentin at gmx.at] 
Sent: Wednesday, February 03, 2010 7:14 AM
To: info at 3dnetproductions.com; x3d-public at web3d.org;
tom_a_sparks at yahoo.com.au
Subject: Re: [X3D-Public] Open-Source Multi-User

Hello Lauren

Well, the ecmascript in my <Script> nodes is interpreted
language, too.

And at least it was possible to animate a few locomotives in
a multiuser environment, (tested for only two users, I
admit).........

You can have a look at this hobby project at
http://simulrr.wordpress.com/simul-rr

Kr
Christoph

-------- Original-Nachricht --------
Datum: Wed, 3 Feb 2010 07:03:09 -0500
Von: "GLG" <info at 3dnetproductions.com>
An: "'Tom Sparks'" <tom_a_sparks at yahoo.com.au>,
x3d-public at web3d.org
Betreff: Re: [X3D-Public] Open-Source Multi-User

Hello Tom,

In what context are you referring? Multi-user avatars as
Christoph is mentioning? Your suggestion can work to a
degree, but the performance would leave much to be desired
to say the least. Multi-user calls need to be happening at a
very low level in order to be efficient enough to be
useable, especially if more than a few simultaneous avatars
are expected. This is without mentioning chat, logging,
network latency, etc. Even when working at a low level you
still need to use optimization techniques. I can't really
imagine anything worth the effort of going through
interpreted languages and a database engine for every MU
request while remaining fast enough to run but a few avatars
at best. Hope this helps.

Lauren

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>-----Original Message-----
>From: x3d-public-bounces at web3d.org [mailto:x3d-public-
>bounces at web3d.org] On Behalf Of Tom Sparks
>Sent: Wednesday, February 03, 2010 12:32 AM
>To: x3d-public at web3d.org
>Subject: Re: [X3D-Public] Open-Source Multi-User
>
>--- On Tue, 2/2/10, Christoph Valentin
><christoph.valentin at gmx.at> wrote:
>> Hi all
>>
>> Thanks for having all these info
>> about open source multiuser here.
>>
>> I'm working
>> on some X3D prototypes, that make use of the
>NetworkSensor
>> node and I will compare my approach with all the info
>here
>> before "really going open source".
>>
>> I'm not so much focussed on SAI/EAI, but more on the
>> Network Sensor and on internal scripting with the
>> <Script> node, to keep the approach general, maybe I
>> loose performance with this, lets see.
>>
>> I tried it
>> with BS Contact and Octaga, but it should be common to
>all
>> browsers, which support Network Sensor node.
>>
>> I
>> did not find a hint about avatar standards (how to sit
>> down/stand up, interact with levers, ......), is there
>some
>> standardization ongoing regarding this?
>>
>> Kind
>> regards
>> Christoph
>
>I have been wondering how the NetworkSensor works and if it
>can work in a lampp (apache/php/perl/MySQL) server
>environment
>
>tom sparks
>
>
>
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