Re: [Flightgear-devel] flight recorder / replay system
On 10 Nov 2012, at 22:44, ThorstenB bre...@gmail.com wrote: I'll document the details of how to create a tutorial (add text messages) later. For now, I'd like to know if the basic system is working everywhere, and if recorded tapes work across systems. When something is (not) working, let me know. Works great here, except the livery / UV coords on the beechcraft were screwed up. Don't see how this could be related to your code, more likely an Intel graphics / Mac issue :) The text prompts are great. James -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_nov___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] flight recorder / replay system
Hi Thorsten, really great news. I already thought that something like this would be very cool :) Everything works great here. Save own flights, playback own and your flights (Nice approach btw. ;) ). Only with jsbsim the my controls button is missing, but that wasn't working before neither... Tom -- Thomas Geymayer www.tomprogs.at / C-Forum und Tutorial: www.proggen.org Student of Computer Science @ Graz University of Technology --- Austria -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_nov ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] flight recorder / replay system
Am 11.11.2012 10:52, schrieb Thomas Geymayer: Everything works great here. Save own flights, playback own and your flights (Nice approach btw.;) ). Only with jsbsim the my controls button is missing, but that wasn't working before neither... Good. ;-) Right, the my controls button is currently intentionally disabled for JSBSim and for YASim helicopters. Only works with YASim aircraft so far. YASim reads in all relevant properties before each iteration, so any external change to a property (aircraft angle, velocity) takes immediate effect. This is why it is easy to just take over control of a replay session: when the replay system has restored the state of all relevant properties, we can just reenable the FDM calculation - and YASim just takes it from there and continues. Unfortunately that's different with YASim helicopters: the rotor speed (pretty much the most important property of a helicopter) isn't read from the property tree. So, if you took over control in mid-air, YASim ignores the rotor speed set by the replay system - and the helicopter dropped like a stone. I tried to fix this a while ago, but it turned out to be more complex than expected. It's the same issue with JSBSim, if I remember correctly. It doesn't read (at least not all) properties prior to an iteration, so external changes to aircraft properties don't have any effect. It's possible to start JSBSim with a given velocity/angle/.. though, like we do when initially starting FlightGear or trigger a simulator reset. However, we currently can't just reinitialize or tear down and recreate a single subsystem - at least that is currently not working with the FDM subsystem. The whole (re)initialization phase has a lot of dependencies and fixed sequences. So that currently also isn't an option. The hope is that will change. We have already cleaned up a lot of subsystem / initialization things over the past year - and more things are planned. Eventually, I hope we can just recreate an FDM at any time (out of thin air... ;-) ) with arbitrary initial settings. cheers, Thorsten -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_nov ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
[Flightgear-devel] flight recorder / replay system
I have updated the flight recorder / replay system with something I had already planned after last year's update. Two new features: 1. Sessions can be saved to/loaded from disk. Simply fly along, then select Save flight recorder tape from the file menu and press Save. You can load the tape again at any later time. You can keep the tape recording for your own amusement - or send it to someone else. 2. You can add text messages to a flight recording. This turns the recording into a flight tutorial. It's somewhere in between the existing tutorial system and a Youtube video: unlike the existing tutorials, the recorded flight can be used to demonstrate complete flight manoeuvres, such as how to fly a complex approach into an interesting airport. And unlike a fixed video tutorial, users can change views, inspect instruments, or take over control at any point. As a teaser and test, I have created a tutorial showing how to fly the nice Isafjördur fjord takeoff and approach. A beautiful airport in Iceland. The tutorial should be used with the Beechcraft b1900d: Instructions: - Make sure you have (terrasync) scenery for Iceland (airport BIIS). - Download tutorial and store on your disk: http://www.filedropper.com/b1900d-biis-isafjordur-tutorial - Start FlightGear with the b1900d. - Menu File = Load Flight Recorder Tape - Select the downloaded file b1900d-BIIS-Isafjordur-Tutorial.fgtape - Press Load - Watch. You should also see instructions during the flight. - Try the approach yourself (i.e. go back with the replay slider, press my controls...) (The cool Icelanders fly this approach on daily schedule. For the interested, here's a real-life recording: http://www.youtube.com/watch?v=Fv_c6vA8DXE ). Never mind the scenery glitch at the airport (in the FG scenery, not on the RL airport ;-) ). I'll document the details of how to create a tutorial (add text messages) later. For now, I'd like to know if the basic system is working everywhere, and if recorded tapes work across systems. When something is (not) working, let me know. cheers, Thorsten -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_nov ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] flight recorder / replay system
Hi Thorsten, On 10 Nov 2012, at 22:44, ThorstenB wrote: I have updated the flight recorder / replay system with something I had already planned after last year's update. Two new features: 1. Sessions can be saved to/loaded from disk. Simply fly along, then select Save flight recorder tape from the file menu and press Save. You can load the tape again at any later time. You can keep the tape recording for your own amusement - or send it to someone else. 2. You can add text messages to a flight recording. This turns the recording into a flight tutorial. It's somewhere in between the existing tutorial system and a Youtube video: unlike the existing tutorials, the recorded flight can be used to demonstrate complete flight manoeuvres, such as how to fly a complex approach into an interesting airport. And unlike a fixed video tutorial, users can change views, inspect instruments, or take over control at any point. I haven't tried it yet, but this sounds like a really cool feature to have; especially for setting up demo's at FSWeekend. Cheers, Durk -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_nov ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] flight recorder / replay system
Hi, I have updated the replay system, to allow taking over control at any point during the replay. So, if you messed up your approach, you can go back in time with the replay system, and try again - and again... There is a new red button My controls!, currently only shown with YASim aircraft: hitting it causes the simulation to continue at the current replay time/position. How well that works also depends on the properties being recorded/replayed - so if an aircraft isn't configured to record it's non-standard gear lever... Unfortunately it's not working with YASim helicopters. YASim doesn't allow to set all necessary initial values externally - specifically I can't set rotor engines to an initial rpm. Starting up a helicopter in the air with rpm = 0 results in a significantly reduced flight time... :) I haven't looked into supporting JSBSim yet. But since JSBSim seems to have an official feature to set initial states, that should be possible eventually. I'll see. cheers, Thorsten -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] flight recorder / replay system
There is a new red button My controls! Don't they tend to say My aircraft!? ;-) Anyway, sounds like a nice feature. Will test later this week, when I return home (and to my Git machine). -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] flight recorder / replay system
On 02.10.2011 02:48, Jacob Burbach wrote: Many (many) months back I had a build of flightgear where there was a bug-feature that actually allowed this to happen. I forget exactly how I triggered it and maybe it is/was still possibleI think it was some magic combo of reset/pause/unpause during a replay. Yes, I'm aware of that cheat :). It formerly worked by triggering a sim reset while replay was active. Indeed, I'm thinking of reviving that cheat and turning it into a feature. Instead of re-initing the whole sim, it's enough to reset the FDM alone. However, unfortunately there are issues with some FDMs. For example, YASim doesn't like it when the initial speed is 0 for propeller aircraft and just goes wild (bug #178, http://code.google.com/p/flightgear-bugs/issues/detail?id=178). Such issues spoil such a feature. Could we have replays broadcast over mp as a hidden option or something, something that is disabled by default? It was actually kind of useful sometimes to be able to see other peoples replays. Having it hidden and/or disabled by default should prevent most/all unintentional bad behavior. And we have the ignore options on MP to get rid of any intentionally annoying people. Sure. That's easy, see new sim/multiplay/freeze-on-replay switch. The replay on MP was really annoying, since it also happened to well behaved MP players, which you normally don't ignore. I've seen people following ATC instructions, and nicely taxiing to their gate - and then they suddenly engaged replay - being unaware of the effect and meaning no harm. So changing the default here avoids most issues. cheers, Thorsten -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] flight recorder / replay system
Hi, finally had the time to complete the replay system overhaul. Thanks to everyone providing input. Some people had sent me longer wish lists – unfortunately I'm unable to fulfill all of them - at least not now :). But some things are still high on my list: specifically the option to easily save/load and stream recorded data using a format that doesn't break easily. Also, the option of taking over flight controls at any point during a replay. The latter isn't as easy as it sounds, since most FDMs don't really like being repositioned or even having the speed changed externally. Another thing, since the topic was raised: since FG2.4.0 the multiplayer system is already aware of replay sessions - and already freezes the state. Other pilots are no longer annoyed by remote replay sessions. It's still a good idea though to start the replay only while in a parking position – since other MP players could still see your aircraft squatting the runway or frozen in mid-flight. Now to the overhaul: main improvement is the option of making it work properly with any type of aircraft and any custom properties. The old system only worked perfectly with certain propeller aircraft and piston engines. Important to mention though: by default, nothing changes for existing aircraft. The old system already covered a huge number of properties - but it's impossible to just record everything. I did some tests trying to auto-detect aircraft types and properties to be recorded - but that cannot really work with all aircraft for a number of reasons. And any fixed selection eventually doesn't work perfectly with some aircraft. Hence, it seems a better idea to avoid any kind of guessing and hard-coded logic - and rely on configuration alone. The default, obviously, is the same set as hard-coded for FG2.4 and earlier. The new system is still easy to adapt since several ready-to-use configuration files are available - which simply need to be included, depending on aircraft/engine/.. type. And it's not much more work to customize. For those interested, there's a README.flightrecorder in the Docs folder. There's also a few examples in fgdata showing different levels of customization: the ASK13 (glider), the c172p (prop/piston), the b1900d (turboprop), the UH-1 (helicopter), and the 777-200ER (jet). As announced, I haven't changed the actual replay buffering. But, as someone requested, all buffer properties are now configurable (see /sim/replay/buffer properties). So, if you have enough memory, you could increase the buffer sizes/rates. There's still no configuration GUI for these properties though. The most obvious change though is probably the new GUI dialog: looks like a video player, provides play/pause/skip controls, also controls replay speed. You can also use the 4 arrow keys to control replay (they were useless during replay so far). Finally, since replay can be paused now, it was necessary to move the stop replay key binding to the ESC key (instead of pressing pause twice) – which feels more intuitive to me anyway. Hope some people find all this a bit useful - so have fun. I recommend you take your favourite aircraft for a ride and then replay and evaluate your landing using the new slow-motion support... ;-) And I'm sure you'll let me know when things aren't working as expected... cheers, Thorsten On 04.09.2011 20:56, ThorstenB wrote: Hi, I'm currently looking into an overhaul of the replay system. The buffer mechanisms of the existing replay system itself won't change, but I'm replacing the hard-coded recorder/FDM interface. Instead, I'll introduce a fully configurable flight recorder. It's basically a property recorder, so anything that's in the property tree can be recorded - and replayed. Aircraft-specific XML descriptions can be used to specify properties, data type and interpolation method (discrete, linear, or rotational in degrees/radiant) for each signal. There'll be a set of default property lists which can be included, so only custom properties need to be specified manually. Naturally, all (existing) aircraft not providing any recorder configuration will use a default, matching the hard-coded system of = FG 2.4.0. I have a prototype which also shows the new system is going to be faster, mainly since it doesn't resolve property paths at run-time and avoids copying data around. It'll also use less memory, since most properties can be recorded with reduced precision, e.g. it's unnecessary to record things like flap or gear position with full double precision. And the current system always records properties for 4 engines + 4 propellers + 6 tanks + 3 gear. With the new system, this can be easily adapted - a glider doesn't even need tank/gear/engine/propeller properties. On the other hand, most jet engine properties weren't recorded so far - this will also improve. And the obvious advantage of the new system is the option of recording custom
Re: [Flightgear-devel] flight recorder / replay system
On Sat, Oct 1, 2011 at 5:58 PM, ThorstenB bre...@gmail.com wrote: Also, the option of taking over flight controls at any point during a replay. The latter isn't as easy as it sounds, since most FDMs don't really like being repositioned or even having the speed changed externally. Many (many) months back I had a build of flightgear where there was a bug-feature that actually allowed this to happen. I forget exactly how I triggered it and maybe it is/was still possibleI think it was some magic combo of reset/pause/unpause during a replay. It worked quite well and smooth on some aircraft, I remember shooting an approach over and over again by triggering it. Would be cool to see that work again, as an actual feature this time. :) Another thing, since the topic was raised: since FG2.4.0 the multiplayer system is already aware of replay sessions - and already freezes the state. Other pilots are no longer annoyed by remote replay sessions. It's still a good idea though to start the replay only while in a parking position – since other MP players could still see your aircraft squatting the runway or frozen in mid-flight. Could we have replays broadcast over mp as a hidden option or something, something that is disabled by default? It was actually kind of useful sometimes to be able to see other peoples replays. Having it hidden and/or disabled by default should prevent most/all unintentional bad behavior. And we have the ignore options on MP to get rid of any intentionally annoying people. The most obvious change though is probably the new GUI dialog: looks like a video player, provides play/pause/skip controls, also controls replay speed. You can also use the 4 arrow keys to control replay (they were useless during replay so far). Finally, since replay can be paused now, it was necessary to move the stop replay key binding to the ESC key (instead of pressing pause twice) – which feels more intuitive to me anyway. Hope some people find all this a bit useful - so have fun. I recommend you take your favourite aircraft for a ride and then replay and evaluate your landing using the new slow-motion support... ;-) And I'm sure you'll let me know when things aren't working as expected... This sounds really awesome, really. I'm really looking forward to the future when all aircraft have configured themselves to have flawless replays, instead of being half crippled most of the time like they have been for so long. :) cheers..and thanks! --Jacob -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] flight recorder / replay system
It would be wonderful if replay data could be saved and loaded to/from a file rather than only buffered to memory (with decreasing resolution) temporarily. The ability to save and reload (and share) replays would be extremely useful for so many things such as flight training to check student performance of flight exercises, research, testing, virtual airlines checking/verifying flights, contests, etc, etc. A proper configurable replay system with the ability to save and load would be a HUGE feature for flightgear. I know you said you don't plan on changing the buffering methods, but while your in there...if you feel inspired ;) cheers -- Doing More with Less: The Next Generation Virtual Desktop What are the key obstacles that have prevented many mid-market businesses from deploying virtual desktops? How do next-generation virtual desktops provide companies an easier-to-deploy, easier-to-manage and more affordable virtual desktop model.http://www.accelacomm.com/jaw/sfnl/114/51426474/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] flight recorder / replay system
Thorsten I'm currently looking into an overhaul of the replay Thorsten system. The buffer mechanisms of the existing replay Thorsten system itself won't change, but I'm replacing the Thorsten hard-coded recorder/FDM interface. Instead, I'll [...] Thorsten I have a working prototype, but nothing ready to be Thorsten committed. Meanwhile, constructive comments/ideas are Thorsten welcome. As maintainer of Atlas, an item long on my to-do list is improving the FlightGear/Atlas communications protocol. At the moment, Atlas can use two protocols, called Atlas and NMEA. Both are preset, fairly limited, and hard-coded. Ideally, a protocol should be able to send a richer set of information, and be configurable on a per-aircraft (or per-user) basis. Your posting about the replay system made me wonder if it could be adapted to be such a protocol. Right now, Atlas' requirements are: - UDP transmission - FlightGear talks to Atlas via UDP. UDP packets are limited to a theoretical maximum of 64kB, and probably a much smaller real-life maximum (although I need to test this). So the protocol can't send over everything and the kitchen sink. - File streaming - Instead of sending directly to Atlas, FlightGear should also be able to dump the data to a file to be read by Atlas later. - Custom properties - It's possible Atlas will want to look at properties the replay system doesn't supply, or ignore properties the replay system supplies. It would be nice to be able to specify properties that are specific to Atlas (or have Atlas specify them all, if that works out better). What do you think? Could the replay system be generalized in such a way? Thanks, Brian -- Using storage to extend the benefits of virtualization and iSCSI Virtualization increases hardware utilization and delivers a new level of agility. Learn what those decisions are and how to modernize your storage and backup environments for virtualization. http://www.accelacomm.com/jaw/sfnl/114/51434361/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] flight recorder / replay system
Thorsten, this is just amazing! One question I need to ask: What is the recording frequency? Can it be adjusted by the user? cheers Robert 2011/9/4 ThorstenB bre...@gmail.com Hi, I'm currently looking into an overhaul of the replay system. The buffer mechanisms of the existing replay system itself won't change, but I'm replacing the hard-coded recorder/FDM interface. Instead, I'll introduce a fully configurable flight recorder. It's basically a property recorder, so anything that's in the property tree can be recorded - and replayed. Aircraft-specific XML descriptions can be used to specify properties, data type and interpolation method (discrete, linear, or rotational in degrees/radiant) for each signal. There'll be a set of default property lists which can be included, so only custom properties need to be specified manually. Naturally, all (existing) aircraft not providing any recorder configuration will use a default, matching the hard-coded system of = FG 2.4.0. I have a prototype which also shows the new system is going to be faster, mainly since it doesn't resolve property paths at run-time and avoids copying data around. It'll also use less memory, since most properties can be recorded with reduced precision, e.g. it's unnecessary to record things like flap or gear position with full double precision. And the current system always records properties for 4 engines + 4 propellers + 6 tanks + 3 gear. With the new system, this can be easily adapted - a glider doesn't even need tank/gear/engine/propeller properties. On the other hand, most jet engine properties weren't recorded so far - this will also improve. And the obvious advantage of the new system is the option of recording custom properties. Finally, the new system also comes with a new replay dialog. Looks more like a video player, provides a time slider and, also new, introduces slow-motion play back. Sneak preview: http://imageshack.us/photo/my-images/683/fgfsreplay.png/ I have a working prototype, but nothing ready to be committed. Meanwhile, constructive comments/ideas are welcome. cheers, Thorsten -- Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free Love Thy Logs t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel -- Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free Love Thy Logs t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] flight recorder / replay system
On 05.09.2011 18:48, Robert wrote: One question I need to ask: What is the recording frequency? Can it be adjusted by the user? The replay system uses three buffer levels: short term memory records 60 seconds at full frame rate, mid term buffer records another 10 minutes at 2fps, and the long term buffer holds 1 hour at 1/5fps. As I stated earlier, I'm not changing the buffering scheme itself. However, the buffer durations and rates are exposed by properties now. So, if you had enough memory, you could increase the buffer sizes or change their rates. cheers, Thorsten -- Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free Love Thy Logs t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] flight recorder / replay system
On 05.09.2011 21:00, Curtis Olson wrote: While you have your head under the replay hood; Originally the replay system did not record itself replaying a flight, but along the way, a subtle code change messed this up so we recorded our replay as if it was a live flight. This led to an endless playback loop where we'd replay a replay of our replay (for as many times as we let it run.) Hmm, I've been using the replay system quite often recently. Not seen any such issue. And I'm quite sure the recorder (even for FG2.4.0) is sane and doesn't record during playback. Are you sure the issue you're seeing isn't just the loop feature? Check the instant replay dialog. Default setting is looped playback, so the most recent 90 seconds are replayed continuously. You can change the setting and change the loop duration to 3600 seconds (1h), so you'll always see the full (available) recording. Or you could disable the continuous loop altogether... Anyway, with the new video player-like dialog, the behaviour of the replay feature should be much easier to handle. cheers, Thorsten -- Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free Love Thy Logs t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
[Flightgear-devel] flight recorder / replay system
Hi, I'm currently looking into an overhaul of the replay system. The buffer mechanisms of the existing replay system itself won't change, but I'm replacing the hard-coded recorder/FDM interface. Instead, I'll introduce a fully configurable flight recorder. It's basically a property recorder, so anything that's in the property tree can be recorded - and replayed. Aircraft-specific XML descriptions can be used to specify properties, data type and interpolation method (discrete, linear, or rotational in degrees/radiant) for each signal. There'll be a set of default property lists which can be included, so only custom properties need to be specified manually. Naturally, all (existing) aircraft not providing any recorder configuration will use a default, matching the hard-coded system of = FG 2.4.0. I have a prototype which also shows the new system is going to be faster, mainly since it doesn't resolve property paths at run-time and avoids copying data around. It'll also use less memory, since most properties can be recorded with reduced precision, e.g. it's unnecessary to record things like flap or gear position with full double precision. And the current system always records properties for 4 engines + 4 propellers + 6 tanks + 3 gear. With the new system, this can be easily adapted - a glider doesn't even need tank/gear/engine/propeller properties. On the other hand, most jet engine properties weren't recorded so far - this will also improve. And the obvious advantage of the new system is the option of recording custom properties. Finally, the new system also comes with a new replay dialog. Looks more like a video player, provides a time slider and, also new, introduces slow-motion play back. Sneak preview: http://imageshack.us/photo/my-images/683/fgfsreplay.png/ I have a working prototype, but nothing ready to be committed. Meanwhile, constructive comments/ideas are welcome. cheers, Thorsten -- Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free Love Thy Logs t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
