Your Points for King MIdAS

Thinking about the key properties of Games and Collaborating Software,

  1. Multiuser
  2. Interactivity
  3. Animation
  4. Simulation

i.e. MIdAS = Multiuser capable Interactivity driven Animation and Simulation.

Please distribute your 15 Points, e.g.

  1. M = 5 P.
  2. I = 4 P.
  3. A = 4 P.
  4. S = 2 P.

Please write to the comments

Yours Christoph

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The Imprint……


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Collaboration Tools? Break Until Spring! New Club?

I am currently having a break with my X3D hobbies, at least until spring ’22.

However, I already have some plans about how it COULD continue afterwards.

So I am just repeating my question kindly:

Please tell us your opinion about a new “Society for Lifelong Collaborating” (to be founded earliest in spring 2022), if possible, before Christmas.

Vision of “The Society” (

  1. no f2f meetings,
  2. dedicated to asynchronous communication (mail, mail like)
  3. the communication of the society itself will be a comprehensive test case for various collaboration tools and
  4. optionally creating a wiki / collecting know how about collaboration tools.

  5. if we find movie enthusiasts: discussing the first part of the narrative “The Third Child” – Prologue  -> club colour cyan
  6. if we find railway enthusiasts: developing/using SrrTrains v0.01 as a test case for collaboration tools

Looking forward to a nice answer



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A Possible Future of SrrTrains

Well, I have told you, the project SrrTrains v0.01 has encountered the what-I-call “2nd Hibernation Phase” and is now “sleeping”, making very very slow progress every now and then.

Reason is, we are waiting for “3rd Party Interest” and herewith some “additional helping hands”.

How could we evoke “3rd Party Interest”? – this described at THIS LINK.

A rough time line could be sketched like follows, examplifying what COULD happen to the project:

In case of questions, please feel free to issue a comment at this blog, anytime.


Yours Christoph

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“Old Plan A”: Update of the Glossary

Dear Friends of the 3D Web! Dear Friends of SrrTrains!

I felt free to update the glossary:

1) The definition of “reality”, “virtual reality” and “real reality” has been slightly corrected
2) The acronym DIGITS has been re-defined: the second “I” means “Infrastructure” instead of “Information”
3) In case of AR/AV, one PSI and one SCSI (two instances of the same scene) are co-located at the User Equipment (UE) of the AR/AV User. Both are “locally SYNCed”
4) In case of VR, a VR User inhabits a “standalone PSI” (without SCSI)
5) In case of “standalone ITR”, some server equipment contains a “standalone SCSI” (without PSI)
6) All PSIs and SCSIs of an MS are “globally SYNCed”
7) Re-definition of the “Operational Modes (OM)” – MRM/pVRM is now orthogonal to SUM/MUM


Yours Christoph

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What is the Way Forward with SrrTrains?

Dear Friends of the 3D Web! Dear Friends of SrrTrains!

As you might have suspected, the SrrTrains v0.01 project was always a “signalling project”, i.e. a kind of “metaphor for my personal story with the 3D Web”.

History of SrrTrains v0.01 (2008 – 2020)

I started the work on SrrTrains in the year 2008, when my former employer told me the idea “SIMUL-RR” would not be adopted and I could use it on my own discretion (the same happened with DIGITS before the year 2007).

I still believed the X3D standard would be a serious asset within the telecom industry and so I always interpreted my project as a “comprehensive test case” to be able to assert the “fitness of X3D for the telecom industry”.

Unfortunately my former employer left the telecom sector and I had to “change my vehicle” in year 2010.

The ideas grew and came more comprehensive and finally I had reached my personal goals of SrrTrains v0.01.

All ideas that were “born” by SrrTrains v0.01, i.e.

  1. the Mature Network Sensor *),
  2. the SMUOS/C3P Idea,
  3. and the DIGITS Idea

are listed at IMPLICATIONS OF SRRTRAINS v0.01.

*) The MNS is a pre-condition for SMUOS/C3P

The “old” Plan A and the “old” Plan B were identified:

  • “old” Plan A: take the output from the simulrr/smuos project and implement SMUOS/C3P in a Web3D Browser (proprietary research project)
  • “old” Plan B: take the “Hibernation Reports” of the SrrTrains v0.01 project and make SMUOS to be an X3D Component

The SrrTrains project is currently being stuck in the “2nd Hibernation Phase”. This has been achieved by 2020-01-01.

Current Plannings (as of 2021-10-23)

All the future projects and ideas are shortly summarized at the imprint of the current blog.

In a nutshell, I am currently preparing Plan A, Plan B and Plan C for my “personal future with the 3D Web”.

Which plan will be chosen actually (or maybe two of them), will be decided by the future (and not only by me).

Plan A: Convince my current employer and start projects for non-Web3D / proprietary / 3GPP / ETSI implementations of SMUOS/C3P and DIGITS (for railways, public safety organizations and maybe military)

Plan B: Found an own “one-person” company to support the Web3D community in developing Web3D/IETF standardized SMUOS/C3P and DIGITS

Plan C: Continue SrrTrains v0.01 as a hobby, probably rebase to WebGL based X3D.
(Keep earning my money with GSM / IMS / SIP / MCx topics)

Hint: The fate of Plan A is/will be private and secret – hence it must be a kind of “leak information”, when I will start the public project “Fiat-A” finally (comprende?)


Yours Christoph

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DIS and the Network Sensor

After having prepared the fourth draft of the Application Layer Protocol over RTP BCP, I was eager to perform a test session with the “server-less” distributed mode.

coderextreme suggested to use the official Web3D DIS examples to run them over a VPN.

Well, DIS and in particular IP multicasting, run well over my “Tiny Experimental VPN“.

This gives hope for the “server-less distributed mode” (SLDM) of the ALP.

Generally asking myself, why HLA/DIS and the NSN/ALP must be enemies in the future. According to rumours, the military and the NASA will use HLA/DIS until 2035. So why shouldn’t we accept that we run into an era of parallel MU protocols?


Yours Christoph

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S&P-ARK – First Draft of Application Layer Protocol

Dear all,

The first draft of “ALP over RTP” has been finished. It is just a discussion basis and may be used by implementors to perform first experiments:

Have a good new year

Yours Christoph

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DIGITS#17 – The True Enemy

Dear x3d-public 

The third of five parts of the story “The third child” has been finished this week (thanks to two weeks of vacation and a few easy days at the country side)


  • 1. Prologue – finished with version 1.5 (2016)
  • 2. Friendship – finished with version 1.5 (2016)
  • 3.1. The Mission – the true enemy – finished with version 1.6 (2020)
  • 3.2. The Mission – “Läuterung” – to be finished (2021 ???)
  • 3.3. The Mission – “Staffellauf” – to be finished (2022 ???)

Part 3.x. is a love story between “Lieserl” (German female first name, means Elizabeth) and “Otto” (German male first name).

“Lieserl” can be interpreted as a metaphor for the telecom industry, “Otto” stands for all kinds of virtual globes (/universes), e.g. the idea DIGITS.

The narrative is licensed by a “Creative Commons” license, volunteers for translation to English would be appreciated.

The official home page is at:

The “official easter eggs” have been published at github:

Have a nice week,


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DIGITS#14 – From Enthusiastic to Realistic

Dear All,

With the e-mail “DIGITS#10 – Vienna Calling” (17.7.2020) I told you I was going to found a new “Society for Lifelong Collaboration” (,

where I also wanted to care about tools for collaborating.

Well, from such enthusiastic ideas like leaving the job and the children, I am now back to the “realistic mode”:

  • – no big changes in my personal life style
  • – not leaving anything / anybody


  • – me personally starting to pray for the purpose slightly
  • – the home page remains valid at:
  • – we have found a home for the DIGITS project (“Das dritte Kind” / “The third child”)

All the best


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Some Very Old Links I found on my Disk Drive (SrrTrains)

Erste offizielle pre-alpha Release, jazzworkshop account

Zweite offizielle pre-alpha Release (parallel zum Demo 2012), jazzworkshop acc.

Demo 2012 (step 0032), jazzworkshop account

Das dritte Kind, jazzworkshop account

Demo 2012 – auf meinem eigenen Account

Vierte offizielle pre-alpha Release (Rebase SMUOS) – auf meinem eigenen Account


Fuenfte offizielle pre-alpha Release (MibCore) – auf meinem eigenen Account

And another one

Have a nice week

Yours Christoph

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