Re: [Flightgear-devel] 747 flight deck
A few months back someone was looking at trying to integrate the OpenGC stuff into FlightGear as a panel-like object. Did anything come of that? It was me, but unfortunetly I wasn't succesfull. The one problem is in drawing lines. Cause we use polygon offset you must use polygons instead of lines. The second is that OpenGC use changing of projection in each Gauge component to clip out the stuff which doesn't belong to gauge. I tried changing of clipping planes, but when David M. mentioned that it makes big performance penalty, to change cliping planes in the middle of render cycle I stoped the project. IMHO it will be better to predraw Gauges in texture, before you start rendering and then use this texture in FGTexturedLayer, but I don't find time to explore how to do this. I'm now very busy with reworking of our catalogue database and unfortunetly this have more priority then FG. Regards, MaDr -- Martin Dressler e-mail: [EMAIL PROTECTED] http://www.musicabona.com/ ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] 747 flight deck
Martin Dressler wrote: It was me, but unfortunetly I wasn't succesfull. The one problem is in drawing lines. Cause we use polygon offset you must use polygons instead of lines. This isn't entirely a showstopper. Polygon offset works for lines, but you have to enable it explicitly and there are some confusing rules regarding wide lines. The second is that OpenGC use changing of projection in each Gauge component to clip out the stuff which doesn't belong to gauge. Hrm. That's nastier. David is right, that clip planes can be very slow on some hardware, and cause interactions on others. NVidia cards actually use one of the texture units to do user clip planes (which is awfully elegant, but really weird). If it's entirely 2D rendering, though, and all that it's drawing is lines, then doing the clipping yourself is really easy and probably not too slow. But maybe you're right, that a custom-built FlightGear EFIS would be simpler. Andy -- Andrew J. RossNextBus Information Systems Senior Software Engineer Emeryville, CA [EMAIL PROTECTED] http://www.nextbus.com Men go crazy in conflagrations. They only get better one by one. - Sting (misquoted) ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] 747 flight deck
Jim Wilson wrote: Well this probably isn't very impressive. But here it is. First view from the pilot's seat. Things are very rough at this point. Oh, baby. Someone get some instruments in that thing. :) One nit that occurs to me: looking at the horizon, it looks like the view down over the nose is only about 5° or so. This means that the runway will be hidden under the nose at a typical approach AoA of 8°. I think, anyway. That's the AoA that the YASim model likes to use for approaches (i.e. solves for), in any case. If anyone has better figures on approach AoA or cockpit geometry/visibility, speak up and I can fix the flight model. Maybe the viewpoint needs to be moved up a few cm or so? A few months back someone was looking at trying to integrate the OpenGC stuff into FlightGear as a panel-like object. Did anything come of that? Andy -- Andrew J. RossNextBus Information Systems Senior Software Engineer Emeryville, CA [EMAIL PROTECTED] http://www.nextbus.com Men go crazy in conflagrations. They only get better one by one. - Sting (misquoted) ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
re: [Flightgear-devel] 747 flight deck
Jim Wilson writes: Well this probably isn't very impressive. But here it is. First view from the pilot's seat. Things are very rough at this point. http://www.spiderbark.com/fgfs/roughflightdeck.png Good start. You'll be surprised how fast things go from there. All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] 747 flight deck
David Findlay [EMAIL PROTECTED] said: On Sun, 24 Nov 2002 02:41 pm, Jim Wilson wrote this piece of wisdom: Well this probably isn't very impressive. But here it is. First view from the pilot's seat. Things are very rough at this point. Is that a 3D cockpit or a normal one? Thanks, 3D OR normal? :-) It is 3d. Best, Jim ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
re: [Flightgear-devel] 747 flight deck
David Megginson [EMAIL PROTECTED] said: Good start. You'll be surprised how fast things go from there. Thanks. I hope you're right! There is a lot more geometry inside than the u3a and certainly the a4. But yeah, getting this far is a bigger step than it appears in the screenshot. Best, Jim ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] 747 flight deck
Jim Wilson writes: My thought at this point is that it should be possible to build an ac3d file with surfaces on it for the gc display components. What I need is the ability to animate the textures using texture transforms. Would that be difficult to do David? I'd need to able to slide and rotate. At some point we would need to be able to do some sort of multiple texturing or decals as well for more detail. That's doable, but it might also be time to think about scripting. All the best, David -- David Megginson, [EMAIL PROTECTED], http://www.megginson.com/ ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
Re: [Flightgear-devel] 747 flight deck
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Sun, 24 Nov 2002 02:41 pm, Jim Wilson wrote this piece of wisdom: Well this probably isn't very impressive. But here it is. First view from the pilot's seat. Things are very rough at this point. Is that a 3D cockpit or a normal one? Thanks, David - -- If you give someone a program, you will frustrate them for a day. If you teach them how to program, you will frustrate them for a lifetime. -BEGIN PGP SIGNATURE- Version: GnuPG v1.0.7 (GNU/Linux) iD8DBQE94GLoZOfFgbBAbXARAhxoAJsHJxWKCvNKiRjreM9nEEPXBAolrQCfbKd/ LSw3X2qWIhet3L0Ir95A2vM= =EMZm -END PGP SIGNATURE- ___ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
