Re: [Flightgear-devel] Multiple channel autopilot controllers
On Tuesday 12 February 2008 17:21, Robin van Steenbergen wrote: LeeE wrote: This is just for info and probably mainly directed at Roy Vegard Ovesen but it might also interest other people interested in setting up autopilot systems. As I've mentioned previously, I've had some problems tuning PID controllers, specifically controllers that maintain a specified pitch i.e. input is a target pitch and the output is an elevator-trim deflection. The problem is that the controller needs to be fairly 'brutal' in it's control at low speeds during take-off, to initiate rotation and prevent over-rotation, but this brutality tends to lead to oscillation at higher speeds Not to be particularly picky, but: Real-world aviation doesn't use the autopilot for take-off, because of this very issue, which is present in real-world analog controllers as well. AP is only engaged at acceleration altitude, when the gear and flaps are up (clean). Using the AP for climbing out in an unclean configuration at a very low speed will require a high pitch reference and possibly induce stall. TO/GA is sometimes used, though, but the TO/GA setting is a fixed pitch reference, and only engaged after rotation, not on the runway. One of the main reasons for that is also that the pilots still have the ultimate control over the aircraft in case of an engine failure. The 'strength' versus 'instability' issue is inherent to PID control mechanisms, if you build a strong controller it will tend to oscillate and jitter in situations where small control inputs are required, because strong controllers are designed for large control changes. It's a classic duality dilemma in control engineering, and possibly the only way to compensate for it is to implement adaptive parameters to the control system (e.g. the 'strength' of the control laws reduce as the airspeed increases or the angle of attack reduces). Thanks for your comments - they fit with what I'm finding thinking. Sure, in piloted aircraft takeoff is handled by the pilot, who is able to cope with a wide range of possible failures at this critical phase of flight, but I'm trying to work towards a UAV control framework, from takeoff roll to landing stop, so that's why I'm messing about with automated takeoffs, landings and scripted flight etc. I also find auto takeoffs, landings and scripted flight useful for general FDM config controller tuning for piloted aircraft - it eliminates variations due to the pilot, in this case me:) LeeE - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] tree textures
SydSandy schrieb: Hi Georg, The winter textures are in cvs now, I'm working on those ugly trees next and a higher resolution set to put in Textures.high . If you spot a texture I might have missed , let me know ... Cheers Syd, thank you very much, I'll download and test immediately. Feedback guaranted :-) Georg - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Patch v1 - Rain Snow
Nicolas wrote Subject: [Flightgear-devel] Patch v1 - Rain Snow Hi, I propose my first tries... still much work to get a good implementation. From the README (into path) : - This first try permits to add a basic snow and rain effects in using particle from OSG. For the moment, the patch uses the METAR informations to enable / disable rain or snow effects. (intensity of effects is : low, meddium, high) For the next release of patch : 1) Add the wind direction and velocity effect 2) it's raining cats and dogs in my plane !!! (fixed this issue) 3) I want to the density of effects depend on altitude. If I'm higher than clouds layer, rain (or snow) is stopped... 4) The particle effects have to depend on the camera position. 5) If you have propositions... :) Just in case anyone has tried, this patch will not compile under MSVC8 - fix is easy, just add return true at line 121 in precipitation.cxx (as discussed with Nicolas over on IRC). Although this patch has its problems, principally with transparency ordering - cockpit canopies make the rain disappear, it is a _significant_ improvement on the existing. I would recommend its inclusion in cvs, and the retirement of the old code. If it is intended that there are some user-settable parameter as described in lines 111 - 121 of the code, then they should be exposed in the property tree (or perhaps they are redundant?) I'm sure that the next iteration will be even better. Vivian - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Multiple channel autopilot controllers
LeeE wrote: Thanks for your comments - they fit with what I'm finding thinking. Sure, in piloted aircraft takeoff is handled by the pilot, who is able to cope with a wide range of possible failures at this critical phase of flight, but I'm trying to work towards a UAV control framework, from takeoff roll to landing stop, so that's why I'm messing about with automated takeoffs, landings and scripted flight etc. I also find auto takeoffs, landings and scripted flight useful for general FDM config controller tuning for piloted aircraft - it eliminates variations due to the pilot, in this case me:) LeeE Well, the most simple thing you could do to make your control an adaptive one, is to play with the feedback gain. In situations where large control inputs are more prominent (slow flight, high AOA), the loop gain will be higher and the control will be 'stronger' but more susceptible to end-value oscillation. With normal ascent/cruise flight (higher airspeeds, low AOA situations), the loop gain will be a lot lower. Since it's a digital control scheme, it's easy to change your control parameters at run time. In essence, what you'll be needing is a fuzzy logic PID :) - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] tree textures
On Tue, 12 Feb 2008 16:34:47 -0500 Will Harrison [EMAIL PROTECTED] wrote: FRAGMENT glCompileShader I'm no expert in that area , but the error statement seems to indicate that. Maybe someone with more knowledge can answer better ... Cheers -- SydSandy [EMAIL PROTECTED] - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Multiple channel autopilot controllers
Thanks for your comments - they fit with what I'm finding thinking. Sure, in piloted aircraft takeoff is handled by the pilot, who is able to cope with a wide range of possible failures at this critical phase of flight, but I'm trying to work towards a UAV control framework, from takeoff roll to landing stop, so that's why I'm messing about with automated takeoffs, landings and scripted flight etc. I also find auto takeoffs, landings and scripted flight useful for general FDM config controller tuning for piloted aircraft - it eliminates variations due to the pilot, in this case me:) LeeE My experience with UAV control systems is that scheduling gains with airspeed is a good idea if you want control over a wide envelope. It is difficult enough to make the vehicle stable over the entire flight envelope. If you want anything approaching optimum control, you need to have gain settings for at least 2 different airspeed regimes. The discontinuities that cause the kick can be eliminated by doing a smooth interpolation between the gains (rather than suddenly changing them when airspeed crosses a given threshold). I've had success using a low speed and high speed set of gains with linear interpolation between them. Of course, I don't know how you could do this in flightgear. Perhaps a nasal script could do the interpolation and update the PID gain properties? -Jeff - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Multiple channel autopilot controllers
My experience with UAV control systems is that scheduling gains with airspeed is a good idea if you want control over a wide envelope. It is difficult enough to make the vehicle stable over the entire flight envelope. If you want anything approaching optimum control, you need to have gain settings for at least 2 different airspeed regimes. The discontinuities that cause the kick can be eliminated by doing a smooth interpolation between the gains (rather than suddenly changing them when airspeed crosses a given threshold). I've had success using a low speed and high speed set of gains with linear interpolation between them. Of course, I don't know how you could do this in flightgear. Perhaps a nasal script could do the interpolation and update the PID gain properties? -Jeff It's been done before (quite a lot, actually) using the JSBSim flight control components. As I recall, a lot of the runs were made using JSBSim as a standalone (batch) application, or integrated with another flight simulation application. You've got complete control. Jon - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] [ANN] dual control c172p prototype
Anders Gidenstam schrieb: Just to inform that I moved this aircraft to a new location: http://www.gidenstam.org/FlightGear/DualControl/ And in case anyone is curious this is what it looks like for the pilot and copilot: http://www.gidenstam.org/FlightGear/DualControl/images/pilot.jpg http://www.gidenstam.org/FlightGear/DualControl/images/copilot.jpg Autopilot and ADF aren't properly shared yet but most other things work. Cheers, Anders This is a neat job you are doing - with a lot of scopes we have to think about in the future. Thanks a lot Georg EDDW - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] [ANN] dual control c172p prototype
Just to inform that I moved this aircraft to a new location: http://www.gidenstam.org/FlightGear/DualControl/ And in case anyone is curious this is what it looks like for the pilot and copilot: http://www.gidenstam.org/FlightGear/DualControl/images/pilot.jpg http://www.gidenstam.org/FlightGear/DualControl/images/copilot.jpg Autopilot and ADF aren't properly shared yet but most other things work. Cheers, Anders -- --- Anders Gidenstam mail: anders(at)gidenstam.org WWW: http://www.gidenstam.org/FlightGear/JSBSim-LTA/ - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] fg homepage issues
Ok, that's oké. But why is the 777 not in CVS? It's one of the better commercial jets... Date: Tue, 12 Feb 2008 15:10:43 -0600From: [EMAIL PROTECTED]: [EMAIL PROTECTED]: Re: [Flightgear-devel] fg homepage issuesThe flightgear aircraft download web page is setup to show all those aircraft that are in CVS. I have some automated scripts setup and they examine the CVS tree to create the web pages and matching ftp downloads.Regards,Curt. On Feb 12, 2008 2:05 PM, Gijs de Rooy [EMAIL PROTECTED] wrote: I do a cvs update -d in the data/Aircraft and I don't get any 777, are you sure that has been committed to cvs? Regards, Curt.I don't know for sure, but look at this topic: http://www.flightgear.org/forums/viewtopic.php?t=968 Gijs In 2 tellen je eigen webpagina voor al je foto's! Makkelijk en gratis met Windows Live Spaces-This SF.net email is sponsored by: MicrosoftDefy all challenges. Microsoft(R) Visual Studio 2008.http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___Flightgear-devel mailing [EMAIL PROTECTED]://lists.sourceforge.net/lists/listinfo/flightgear-devel-- Curtis Olson: http://baron.flightgear.org/~curt/ _ Nieuw: Windows Live Messenger 2008! Gratis downloaden http://get.live.com/messenger- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] fg homepage issues
The flightgear aircraft download web page is setup to show all those aircraft that are in CVS. I have some automated scripts setup and they examine the CVS tree to create the web pages and matching ftp downloads. Regards, Curt. On Feb 12, 2008 2:05 PM, Gijs de Rooy [EMAIL PROTECTED] wrote: I do a cvs update -d in the data/Aircraft and I don't get any 777, are you sure that has been committed to cvs? Regards, Curt. I don't know for sure, but look at this topic: http://www.flightgear.org/forums/viewtopic.php?t=968 Gijs -- In 2 tellen je eigen webpagina voor al je foto's! Makkelijk en gratis met Windows Live Spaces http://spaces.live.com - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel -- Curtis Olson: http://baron.flightgear.org/~curt/ - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] fg homepage issues
I do a cvs update -d in the data/Aircraft and I don't get any 777, are you sure that has been committed to cvs? Regards, Curt. I don't know for sure, but look at this topic: http://www.flightgear.org/forums/viewtopic.php?t=968 Gijs _ Probeer Live Search: de zoekmachine van de makers van MSN! http://www.live.com/?searchOnly=true- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] fg homepage issues
On Tue, 12 Feb 2008 13:58:18 -0600 Curtis Olson [EMAIL PROTECTED] wrote: On Feb 12, 2008 1:49 PM, Gijs de Rooy wrote: The 787 should have been included on the page. I'm not sure why it's not there. I'm trying to do some debugging this afternoon. What other aircraft are missing that you think should be on the download page? The 777 as I said before... I do a cvs update -d in the data/Aircraft and I don't get any 777, are you sure that has been committed to cvs? Regards, Curt. -- Curtis Olson: http://baron.flightgear.org/~curt/ No , this one is on Justin Smithies server ... -- SydSandy [EMAIL PROTECTED] - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] fg homepage issues
On Feb 12, 2008 1:49 PM, Gijs de Rooy wrote: The 787 should have been included on the page. I'm not sure why it's not there. I'm trying to do some debugging this afternoon. What other aircraft are missing that you think should be on the download page? The 777 as I said before... I do a cvs update -d in the data/Aircraft and I don't get any 777, are you sure that has been committed to cvs? Regards, Curt. -- Curtis Olson: http://baron.flightgear.org/~curt/ - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] fg homepage issues
The 787 should have been included on the page. I'm not sure why it's not there. I'm trying to do some debugging this afternoon. What other aircraft are missing that you think should be on the download page? The 777 as I said before... _ Probeer Live Search: de zoekmachine van de makers van MSN! http://www.live.com/?searchOnly=true- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] fg homepage issues
On Feb 12, 2008 8:16 AM, JOSHUA WILSON [EMAIL PROTECTED] wrote: The aircraft downloads page, http://www.flightgear.org/Downloads/aircraft/index.shtml is missing many of its aircraft. BTW, is there any reason why the 787 was never included? It was the only model in the base distribution that wasn't. The 787 should have been included on the page. I'm not sure why it's not there. I'm trying to do some debugging this afternoon. What other aircraft are missing that you think should be on the download page? Curt. -- Curtis Olson: http://baron.flightgear.org/~curt/ - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] fg homepage issues
On Tue, 12 Feb 2008 22:17:45 +0100 Gijs de Rooy [EMAIL PROTECTED] wrote: Ok, that's oké. But why is the 777 not in CVS? It's one of the better commercial jets... Date: Tue, 12 Feb 2008 15:10:43 -0600From: [EMAIL PROTECTED]: [EMAIL PROTECTED]: Re: [Flightgear-devel] fg homepage issuesThe flightgear aircraft download web page is setup to show all those aircraft that are in CVS. I have some automated scripts setup and they examine the CVS tree to create the web pages and matching ftp downloads.Regards,Curt. On Feb 12, 2008 2:05 PM, Gijs de Rooy [EMAIL PROTECTED] wrote: I do a cvs update -d in the data/Aircraft and I don't get any 777, are you sure that has been committed to cvs? Regards, Curt.I don't know for sure, but look at this topic: http://www.flightgear.org/forums/viewtopic.php?t=968 Gijs As I said , it belongs to Justin Smithies , it's not in CVS . I helped him work on it , but it's his decision to include it. I haven't been in contact with him in quite some time ... I'm digging but haven't found the link... hopefully he still reads this mailing list Cheers -- SydSandy [EMAIL PROTECTED] - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] tree textures
On Wed, 13 Feb 2008 02:36:30 +0100 Csaba Halász [EMAIL PROTECTED] wrote: On Feb 13, 2008 2:13 AM, SydSandy [EMAIL PROTECTED] wrote: If there is a property to show the Terrain type below , I haven't found it ... it would make things easier A little nasal combining geo.click_position and geodinfo should do the trick. -- Csaba/Jester Thanks , Jester , I've never poked around in there , didn't know it could be done :) Cheers -- SydSandy [EMAIL PROTECTED] - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] tree textures
Hi Georg, The winter textures are in cvs now, I'm working on those ugly trees next and a higher resolution set to put in Textures.high . If you spot a texture I might have missed , let me know ... Cheers Hi Syd, after updating CVS and testing I found the city textures of this area still missing (city1 .. city3). Although these don't fit really well for European cities - but this is another question. And some coniferous-tree convered areas where I don't know what the underlying material name is (what I mean, ie. nameDeciduousNeedleCover/name). Is there any property which indicates this name when I am flying over the terrain? Otherwise I'll try to identify tomorrow by view which summer-texture is at those places still uncovered with winter textures. Regards Georg - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] tree textures
On Tue, 12 Feb 2008 16:43:58 +0100 Georg Vollnhals [EMAIL PROTECTED] wrote: LeeE schrieb: The next one: Did you see these tree areas, seems to be something like an ongoing ecological desaster in FlightGear: http://home.arcor.de/vollnhals-bremen/EcologicalDesaster/ Any ideas? Regards Georg Brings to mind the Tunguska event - http://physics.uoregon.edu/~jimbrau/BrauImNew/Chap14/FG14_24.jpg and the tree die-off around Mammoth Mountain in the Long Valley caldera area due to volcanic CO2 - http://quake.usgs.gov/prepare/factsheets/CO2/index.html LeeE Yes, and for me some areas in Germany due to acid rain - might be not so large areas and could be stopped a little by chalking the ground (mostly done by helicopters). Anyway, for our FlightGear world Syd has some recipes up his sleeve :-) Georg Hi Georg, The winter textures are in cvs now, I'm working on those ugly trees next and a higher resolution set to put in Textures.high . If you spot a texture I might have missed , let me know ... Cheers -- SydSandy [EMAIL PROTECTED] - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Multiple channel autopilot controllers
LeeE wrote: This is just for info and probably mainly directed at Roy Vegard Ovesen but it might also interest other people interested in setting up autopilot systems. As I've mentioned previously, I've had some problems tuning PID controllers, specifically controllers that maintain a specified pitch i.e. input is a target pitch and the output is an elevator-trim deflection. The problem is that the controller needs to be fairly 'brutal' in it's control at low speeds during take-off, to initiate rotation and prevent over-rotation, but this brutality tends to lead to oscillation at higher speeds Not to be particularly picky, but: Real-world aviation doesn't use the autopilot for take-off, because of this very issue, which is present in real-world analog controllers as well. AP is only engaged at acceleration altitude, when the gear and flaps are up (clean). Using the AP for climbing out in an unclean configuration at a very low speed will require a high pitch reference and possibly induce stall. TO/GA is sometimes used, though, but the TO/GA setting is a fixed pitch reference, and only engaged after rotation, not on the runway. One of the main reasons for that is also that the pilots still have the ultimate control over the aircraft in case of an engine failure. The 'strength' versus 'instability' issue is inherent to PID control mechanisms, if you build a strong controller it will tend to oscillate and jitter in situations where small control inputs are required, because strong controllers are designed for large control changes. It's a classic duality dilemma in control engineering, and possibly the only way to compensate for it is to implement adaptive parameters to the control system (e.g. the 'strength' of the control laws reduce as the airspeed increases or the angle of attack reduces). - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] fg homepage issues
Lol - I had a look at the aircraft download page and when I scrolled down, and the Bleriot-XI thumbnail came into view my, first impression was that it was huge and still sitting on the runway :)) LeeE On Tuesday 12 February 2008 13:34, Curtis Olson wrote: Hmmm, something is screwed up there ... but www.flightgear.org/Downloads/shouldn't be showing the aircraft page, it should be showing a download index ...www.flightgear.org/Downloads/aircraft/ is the correct page and it does work correctly. I'll see if I can get the download index page working again ... I'm not sure what has gone wrong. Curt. On Feb 12, 2008 5:35 AM, Markus Zojer [EMAIL PROTECTED] wrote: Hi all! It is currently not possible to download aircraft from the fg website, as download main program links to download aircraft. and onother issue: also the aircraft images on www.flightgear.org/Downloads/ are broken. Images are linked to http://www.flightgear.org/Downloads/737-300.jpg bit should probably be http://www.flightgear.org/Downloads/aircraft/737-300.jpg g, markus --- -- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] tree textures
On Monday 11 February 2008 16:20, Georg Vollnhals wrote: SydSandy schrieb: On Mon, 11 Feb 2008 03:47:26 +0100 Georg Vollnhals [EMAIL PROTECTED] wrote: Hi Georg , the tree problem is because I created a set of 8 instead of 4 trees per texture for the coniferous trees , and the originally commented out parts of the material.xml file probably still have tree-varieties4/tree-varieties If you change that to tree-varieties8/tree-varieties everything should be fine ... I'm also adding winter textures that were missing from the Terrain.winter folder but that's a bit more work , so it will take a while ... Thank you, that helped. I found three entries with 4 and changed them. Now the winter-trees look fine (only coniferous found), normally. I'm still getting a few strange things here but still testing ... Cheers Hi Syd, you know that I am not complaining? I am just feeling like a Beta-Tester doing some helping work to improve the stuff. If you agree with me, there are a lot of things to discuss - but I just want to do it step for step. The next one: Did you see these tree areas, seems to be something like an ongoing ecological desaster in FlightGear: http://home.arcor.de/vollnhals-bremen/EcologicalDesaster/ Any ideas? Regards Georg Brings to mind the Tunguska event - http://physics.uoregon.edu/~jimbrau/BrauImNew/Chap14/FG14_24.jpg and the tree die-off around Mammoth Mountain in the Long Valley caldera area due to volcanic CO2 - http://quake.usgs.gov/prepare/factsheets/CO2/index.html LeeE - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] OT: When I'm not working on FG...
On Monday 11 February 2008 19:59, SydSandy wrote: On Mon, 11 Feb 2008 13:48:48 + LeeE [EMAIL PROTECTED] wrote: ...I sometimes work on 3D 'art' pictures. http://www.spatial.plus.com/V5/im_WoodenDream-001-006.jpg Is my latest effort. There are a few aspects of it that I'd like to improve and I might come back to it at some point, but it'll do for now. This image took ~9 hours to render (including post-processing global illumination) using a six node (7 cpu) heterogenous render 'smallholding' (it's not big or powerful enough to be called a farm;) All Linux - CPU speeds between 350-1700 MHz. LeeE Nice . I like this kind of art ... I usually do planetrise style images ... Hope you don't mind , it's now in my wallpaper folder :) Cheers Lol - np. I've rather neglected my 3D stuff since getting into FG but I've been slowly getting back into it, as ideas occur to me. LeeE - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] OT: When I'm not working on FG...
On Monday 11 February 2008 16:39, Pietro wrote: At Monday 11 February 2008 14:48:48 LeeE wrote: ...I sometimes work on 3D 'art' pictures. http://www.spatial.plus.com/V5/im_WoodenDream-001-006.jpg Is my latest effort. There are a few aspects of it that I'd like to improve and I might come back to it at some point, but it'll do for now. This image took ~9 hours to render (including post-processing global illumination) using a six node (7 cpu) heterogenous render 'smallholding' (it's not big or powerful enough to be called a farm;) All Linux - CPU speeds between 350-1700 MHz. LeeE Very nice, compliments :) Which kind of rendering SW? POVRay? Pietro Realsoft 3D - http://www.realsoft.com LeeE - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] fg homepage issues
btw: the Boeing-777 is removed from the download page... Date: Tue, 12 Feb 2008 07:34:02 -0600From: [EMAIL PROTECTED]: [EMAIL PROTECTED]: Re: [Flightgear-devel] fg homepage issuesHmmm, something is screwed up there ... but www.flightgear.org/Downloads/ shouldn't be showing the aircraft page, it should be showing a download index ...www.flightgear.org/Downloads/aircraft/ is the correct page and it does work correctly. I'll see if I can get the download index page working again ... I'm not sure what has gone wrong.Curt. On Feb 12, 2008 5:35 AM, Markus Zojer [EMAIL PROTECTED] wrote: Hi all!It is currently not possible to download aircraft from the fg website,as download main program links to download aircraft.and onother issue:also the aircraft images on www.flightgear.org/Downloads/ are broken.Images are linked to http://www.flightgear.org/Downloads/737-300.jpg bitshould probably be http://www.flightgear.org/Downloads/aircraft/737-300.jpgg,markus-This SF.net email is sponsored by: MicrosoftDefy all challenges. Microsoft(R) Visual Studio 2008.http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___Flightgear-devel mailing [EMAIL PROTECTED]://lists.sourceforge.net/lists/listinfo/flightgear-devel-- Curtis Olson: http://baron.flightgear.org/~curt/ _ Jouw nieuws en entertainment, vind je op MSN.nl! http://nl.msn.com/ - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] tree textures
LeeE schrieb: The next one: Did you see these tree areas, seems to be something like an ongoing ecological desaster in FlightGear: http://home.arcor.de/vollnhals-bremen/EcologicalDesaster/ Any ideas? Regards Georg Brings to mind the Tunguska event - http://physics.uoregon.edu/~jimbrau/BrauImNew/Chap14/FG14_24.jpg and the tree die-off around Mammoth Mountain in the Long Valley caldera area due to volcanic CO2 - http://quake.usgs.gov/prepare/factsheets/CO2/index.html LeeE Yes, and for me some areas in Germany due to acid rain - might be not so large areas and could be stopped a little by chalking the ground (mostly done by helicopters). Anyway, for our FlightGear world Syd has some recipes up his sleeve :-) Georg - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] fg homepage issues
Hmmm, something is screwed up there ... but www.flightgear.org/Downloads/shouldn't be showing the aircraft page, it should be showing a download index ...www.flightgear.org/Downloads/aircraft/ is the correct page and it does work correctly. I'll see if I can get the download index page working again ... I'm not sure what has gone wrong. Curt. On Feb 12, 2008 5:35 AM, Markus Zojer [EMAIL PROTECTED] wrote: Hi all! It is currently not possible to download aircraft from the fg website, as download main program links to download aircraft. and onother issue: also the aircraft images on www.flightgear.org/Downloads/ are broken. Images are linked to http://www.flightgear.org/Downloads/737-300.jpg bit should probably be http://www.flightgear.org/Downloads/aircraft/737-300.jpg g, markus - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel -- Curtis Olson: http://baron.flightgear.org/~curt/ - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
[Flightgear-devel] fg homepage issues
Hi all! It is currently not possible to download aircraft from the fg website, as download main program links to download aircraft. and onother issue: also the aircraft images on www.flightgear.org/Downloads/ are broken. Images are linked to http://www.flightgear.org/Downloads/737-300.jpg bit should probably be http://www.flightgear.org/Downloads/aircraft/737-300.jpg g, markus - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] fg homepage issues
Curtis Olson wrote: Hmmm, something is screwed up there ... but www.flightgear.org/Downloads/http://www.flightgear.org/Downloads/ shouldn't be showing the aircraft page, it should be showing a download index ...www.flightgear.org/Downloads/aircraft/ is the correct page and it does work correctly. I'll see if I can get the download index page working again ... I'm not sure what has gone wrong. Curt. The aircraft downloads page, http://www.flightgear.org/Downloads/aircraft/index.shtmlhttp://www.flightgear.org/Downloads/aircraft/index.shtml is missing many of its aircraft. BTW, is there any reason why the 787 was never included? It was the only model in the base distribution that wasn't.- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] tree textures
On Tue, 12 Feb 2008 23:27:08 +0100 Georg Vollnhals [EMAIL PROTECTED] wrote: Hi Georg, The winter textures are in cvs now, I'm working on those ugly trees next and a higher resolution set to put in Textures.high . If you spot a texture I might have missed , let me know ... Cheers Hi Syd, after updating CVS and testing I found the city textures of this area still missing (city1 .. city3). Although these don't fit really well for European cities - but this is another question. And some coniferous-tree convered areas where I don't know what the underlying material name is (what I mean, ie. nameDeciduousNeedleCover/name). Is there any property which indicates this name when I am flying over the terrain? Otherwise I'll try to identify tomorrow by view which summer-texture is at those places still uncovered with winter textures. Regards Georg If there is a property to show the Terrain type below , I haven't found it ... it would make things easier I'll double check , I get city textures here , but I've removed the textureTerrain.winter/***.rgb/texture back to textureTerrain/***.rgb/texture , since it looks in the winter folder anyway if you specify --season=winter. But the condition option now enables solid (frozen ), slippery lakes , which I,ve added to my materials.xml file ... that might be causing a problem there ... Cheers -- SydSandy [EMAIL PROTECTED] - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
