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Re: Space Shuttle - Development

... but also because the shuttle project has been sailing in uncharted waters since its very inception ... Anyway, in the context of the infamous HLA discussion, the FDMShell mechanism is still regularly being brought up as one example of a well-encapsulated subsystem that could be easily moved ...
by Hooray
Sun Jan 20, 2019 5:18 pm
 
Forum: Spaceflight
Topic: Space Shuttle - Development
Replies: 134
Views: 3297

Re: ATC for training

... to the shortcomings identified and discussed by Durk when he came up with the proposal to re-implement the whole system from scratch on top of HLA/RTI, which he called "FGTraffic". Such an MP/AI environment with ATC support using HLA/RTI or DIS could actually become pretty interesting, ...
by Hooray
Thu Jan 03, 2019 9:55 am
 
Forum: AI Traffic
Topic: ATC for training
Replies: 19
Views: 575

Re: advantage of using nasal

... process. So, even if FGPythonSys were a workable alternative right now, it would face these challenges, unless it's using an IPC mechanism like HLA to hook into fgfs without having to run inside the main loop. And this would become very prominent, and problematic, the very instant any of the ...
by Hooray
Tue Oct 30, 2018 4:37 pm
 
Forum: Nasal
Topic: advantage of using nasal
Replies: 4
Views: 465

Re: advantage of using nasal

... to other efforts that were rather aggressively promoted by some senior folks, without delivering much over the course of a whole decade (e.g. HLA/RTI has been repeatedly referred to as having a reputation for being "pie in the sky" by other contributors). Which is just one way to ...
by Hooray
Wed Oct 17, 2018 3:55 pm
 
Forum: Nasal
Topic: advantage of using nasal
Replies: 4
Views: 465

Re: FGPython an propose for Python as an nasal alternative

... http://wiki.flightgear.org/Status_of_AI_in_FlightGear Obviously, none of this ever happened - yet, a number of people interested in working on HLA/RTI did independently come up with the conclusion that this would be a worthwhile goal to aim for - Durk's most recent summary being available here: ...
by Hooray
Thu Mar 29, 2018 4:31 pm
 
Forum: New features
Topic: FGPython an propose for Python as an nasal alternative
Replies: 252
Views: 40094

Re: FGPython an propose for Python as an nasal alternative

But even without looking at HLA/RT, there is quite a bit of existing stuff that could be used to make this happen - for instance, any SGSubsystem could have its own private SGPropertyNode, to provide a subsystem-specific property tree. ...
by bugman
Tue Mar 27, 2018 8:01 pm
 
Forum: New features
Topic: FGPython an propose for Python as an nasal alternative
Replies: 252
Views: 40094

Re: FGPython an propose for Python as an nasal alternative

Mathias' latest public statements regarding HLA/RTI (SimKit at that point) suggested that he was going to overhaul the SGSubsystem accordingly, i.e. so that subsystems could be trivially moved to separate threads, but also processed, using the ...
by Hooray
Tue Mar 27, 2018 7:33 pm
 
Forum: New features
Topic: FGPython an propose for Python as an nasal alternative
Replies: 252
Views: 40094

Re: Canvas remote drawing

... concrete use-case/requirements. fgpanel, Phi, FGQCanvas etc all have different pros & cons However, until there is a real IPC mechanism like HLA/RTI in place, out-of-process front-ends will have serious limitations - so that conventional master/slave setups using a subset of the subsystems ...
by Hooray
Wed Mar 14, 2018 2:06 pm
 
Forum: Canvas
Topic: Canvas remote drawing
Replies: 22
Views: 4311

Re: Canvas remote drawing

... attaches to any running FlightGear process and renders a canvas image on the device it is running. Really smart and consistent with existing HLA considerations as far as I can judge this. But I don't really understand the possible implications also mentioned in the Wiki page of FGQCanvas. ...
by ThomasS
Tue Mar 13, 2018 2:53 pm
 
Forum: Canvas
Topic: Canvas remote drawing
Replies: 22
Views: 4311

Turning off the render and starting FG from another process

Hello, For some years @Hooray and I have discussed the ongoing work with HLA etc. to modularize FlightGear and make it possible to turn off whole subsections of the program in order to hand over control of those areas to another program. I have had a side burner ...
by chriscalef
Sat Mar 10, 2018 5:44 pm
 
Forum: Interfacing
Topic: Turning off the render and starting FG from another process
Replies: 7
Views: 587

Re: FGPython an propose for Python as an nasal alternative

... integrating FGPythonSys in a fashion that brings it up to part with FGNasalSys or even the SGSubsystemMgr interface in general (speaking about HLA/RTI and other acronyms used here). As far as I remember James was actually considering to add your patch at the time, at least to provide an option ...
by Hooray
Fri Mar 09, 2018 2:59 pm
 
Forum: New features
Topic: FGPython an propose for Python as an nasal alternative
Replies: 252
Views: 40094

Re: FGPython an propose for Python as an nasal alternative

... This is in line with the original proposal, but also with the plans that Mathias' subsequently communicated on the devel list when he talked about HLA/RTI. Later on, a number of folks realized that HLA/RTI was nowhere close to being around the corner, and suggested to equip certain subsystems (low-hanging ...
by Hooray
Wed Mar 07, 2018 10:25 pm
 
Forum: New features
Topic: FGPython an propose for Python as an nasal alternative
Replies: 252
Views: 40094

Re: FGPython an propose for Python as an nasal alternative

There are a lot of FG developers who believe that parallelization is a waste of time, which strangely conflicts with the goals of the RTI/HLA initiative. The main problem is not whether the developers think it is a waste of time or not[1], it's the sheer difficulty of getting C++ multi-threaded ...
by Richard
Wed Mar 07, 2018 10:07 pm
 
Forum: New features
Topic: FGPython an propose for Python as an nasal alternative
Replies: 252
Views: 40094

Re: FGPython an propose for Python as an nasal alternative

... and not exactly rocket science. As a matter of fact, it would be far less work to integrate alternate GC schemes than coming up with HLA/RTI or Python support. Which is to say, if someone were to spent 6+ months integrating Python (JavaScript, Lua, Perl or whatever else) - a single ...
by Hooray
Wed Mar 07, 2018 6:19 pm
 
Forum: New features
Topic: FGPython an propose for Python as an nasal alternative
Replies: 252
Views: 40094

Re: FGPython an propose for Python as an nasal alternative

There are a lot of FG developers who believe that parallelization is a waste of time, which strangely conflicts with the goals of the RTI/HLA initiative.


Which just goes to show that it's not Curt's dictatorship after all...
by Thorsten
Wed Mar 07, 2018 5:54 pm
 
Forum: New features
Topic: FGPython an propose for Python as an nasal alternative
Replies: 252
Views: 40094
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