4 * VOR reception now scales with altitude.
5 * Added differential braking support.
6 * Landing gear modeling code now works in JSBSim
7 * Overhauled cloud code substantially, new cloud textures.
8 * Added support for Ray Woodworth's 5 axis motion chair.
9 * Red light the panel at night and shade based on time of day.
11 * Fixed autopilot altitude hold increment bug.
12 * Fixed screen snap shot function.
13 * Fixed mach number for LaRCsim.
14 * --start-date-gmt option fixed.
15 * Fixes to uiuc includes and initializations
16 * Fixes to periodic scheduler.
17 * Fixed a tile loading bug if the load queue wasn't empty before a reset or
20 * Some additional MSVC5 portability fixes.
21 * Tweaks to build with newest gcc under Irix contributed by Erik Hofman.
23 * Clean out a pile of old junk in the material manager library from the
24 pre-ssg days, and majorly overhauled it.
25 * Complete reengineering of the panel code in preparation for moving the
26 configuration out into a data file.
27 * Lots of hashing around with Joystick support trying to achieve something
28 that is flexible enough to handle the zillions of possible configurations
29 out there. Hopefully we are approaching a workable solution.
30 * Better windows support in our joystick module.
31 * View code simplifications and optimizations contributed by Norman Vine.
33 * Added support for $FG_SCENERY and --fg-scenery=path so scenery can have a
34 different location from the base package.
35 * Moved drop in sky module, world time module, ephemeris module, and low
36 level communications modules over to simgear.
37 * Replaced gdbm with metakit
38 * Added David Megginson's property manager
43 * Added a radio stack 2 VOR/ILS and an ADF to the instrument panel.
44 You can change the frequencies by clicking on the knobs on the
45 instrument panels. You can now navigate with VOR/ADF/DME and fly
47 * Added a chronometer to the instrument panel.
48 * Added a "wet" compass to the top of the instrument panel.
49 * Compass, vsi, and altitute instruments and vacuum system are more
51 * Added a magnetic variation model.
52 * Added navaid database management and query code.
53 * Added magvar offset to VOR radials.
54 * Heading bug now display magnetic heading rather than true heading.
55 * Autopilot now has modes to track a VOR and GS.
56 * Added custom joystick client support so sim can be flown from a
57 remote joystick connected to another machine. This is in support of
58 some custom hardware located in the human factors research lab of the
59 university of minnesota.
60 * HUD controls are a bit different "h" toggles through day/night/off
61 modes and "H" cycles through brightness levels.
62 * Norman Vine contributed code to optionally do antialiased hud lines
63 on hardware that supports this. Norman also contributed additional
64 hud cleanups and updates.
65 * Updates to JSBsim flight dynamics code that includes a generic
66 reconfigurable flight control system, a initial state trimming routine,
67 support for wind and weather, support for flaps, independent trim control,
69 * Updates to LaRCsim flight dynamcis code contributed by UIUC that
70 allows loading aircraft specifications at runtime from config files.
71 UIUC is using flightgear as a platform to do icing research. The UIUC
72 aircraft use the c172 gear model for now which causes some weirdness
73 on the ground for some of the larger aircraft.
74 * Flight model no longer has to be chosen at compile time.
75 * Separated ephemeris code from the actual sky rendering code and gave
76 this whole section a big overhaul. The moon should now consistantly
77 have the correct phase.
78 * Rebuilt the sky dome using ssg.
79 * Removed dependencies on mat3.h and friends (old srgp support lib)
80 * Airport lookups now done through gdbm (a light weight embedded database.)
81 * Converted ssgVTable's to ssgVtxTables which do proper memory
82 management and should facilitate use of compiled vertex arrays once
83 ssg add support for these.
84 * Overhauled autopilot internals, separated out the gui controls from
85 the actual autopilot code.
86 * Cygwin32 build fixes
92 * Lots of code reorganizations
93 * Build requires plib-1.1.x
94 * Build requires SimGear-0.0.x
95 * LaRCsim/c172 is now the default aircraft model.
96 * Added flaps support to control model.
97 * Lots of updates and tweaks for the LaRCsim/c172 model.
98 * Use a more standard texture/blend mode combination for sun/moon halos to
99 avoid render path that's not supported by all cards/drivers.
100 * Change reported speed on hud from V_equiv_kts to V_calibrated_kts
101 * Instrument panel rewrite by David Megginson. This isn't quite as flashy
102 as the first pass, but is much more functional, plays much better with
103 opengl, and it should be relatively easy for someone with graphical skills
104 to make it look more spiffy.
105 * MacOS fixes contributed by Darrell Walisser.
106 * Many JSBsim updates.
107 * Added a screen snapshot facility (F3).
108 * Added a load/save state function contributed by David Megginson.
109 * Added support for various I/O protocols and channels so that flightgear
110 can communicate with itself and other programs through a variety of means.
111 * Bug fix: The aircraft model used for external views was being included in
112 the height above terrain check so when the view position and the aircraft
113 model collided the current altitude kept getting pushed up to compensate,
114 but of course the aircraft model would get pushed up as well because it
115 tracks the current aircraft position and orientation. Thus you had a never
117 * Oliver's multiplayer network code now moved to his own subdirectory:
119 * Added simulated cloud puffs as we pass through the cloud layer.
120 * Cleaned up some memory leaks occuring between ssg and flightgear.
121 * Update to Christian's weather data base code.
124 * Durk Talsma added a nifty cloud layer.
125 * Default to Christian Mayer's new weather system.
126 * Added routines to do screen printing contributed by Mark Vallevand.
127 * Added routines to do screen shots to ppm graphics file (all platforms)
128 contributed Rich Kaszeta.
129 * Added a magic carpet (aka slew) mode.
130 * Added a hot air balloon simulator mode. (alpha)
131 * Added a simple (direct lincage) autocoordation feature.
132 * Added a mode to control view (side to side and up and down) with the mouse.
133 * Fixed a DEM decoding problem which caused most of the terrain to be 256
134 meter too high (and regenerated the world scenery with proper elevations.)
136 * Added support for a pilot view offset from the center of gravity.
137 * Various platform portability fixes.
138 * Updated time-offset/syncing command line options.
139 * Updated the FDM <==> Flight Gear interface to be more object oriented.
140 This should hopefully pave the way for being able to simulate several
142 * Removed unimplemented menu entries.
143 * Various scenery tools changes and enhancements in preparation for adding
144 runways (hopefully for the next release.)
147 * Autopilot can now fly great circle routes.
148 * Incorporated a first stab at some networking code contributed by Oliver
150 * Added Christian Mayer's new weather subsystem.
151 * Started adding support for "external" views ... still needs some work.
152 * Added a flight model acceleration funtion.
153 * Added support for mouse yoke control contributed by David Megginson.
154 * FDM model hertz now definable from the command line.
155 * Added initial timezone support so the user can have better control and more
156 options for setting the starting time of the sim.
157 * We now draw nonexistant tiles as ocean which means we only have to create
158 and distribute tiles that contain some sort of land mass.
160 * Replaced basic render engine with plib's ssg (simple scene graph).
161 * Now expect plib to be installed in it's one true and official location.
162 * Added support for timegm() if it exists which explicitely expects GMT input.
163 * A bit of your basic code reorganization and shuffling.
165 * Removed tools dependency on libgfc. Functionality is now covered by
166 shapelib which has been added into the Tools tree.
167 * Added support for the wonderful GSHHS global land mass data set.
168 * Removed dependecy on process-dem.pl script.
169 * Created a new distributed/parallel tile build system ... hmmm kind of super
170 computer or beowulf style stuff for getting large chunks of scenery built
172 * Only generate tiles that have land mass data since the sim can recreate pure
173 ocean tiles on the fly.
174 * First stab at a water flattening scheme to prevent oceans, lakes, and rivers
175 from running up and down the sides of hills.
176 * Changed the default "Work/" subdirectory layout.
177 * Updates to better handle segment boundaries in preparation for real airport
178 runway and lighting modeling.
179 * Updates and enhancements to my polygon management class.
182 * Updates to Tony's c172 model.
183 * Updated getting started guide from Micheal Basler.
185 * FreeBSD portability tweaks.
186 * MACos portability tweaks.
187 * Borland C++ tweaks.
191 * Tons of improvements with scenery creation. Inter-tile gaps have been
192 fixed, distorted textures have been fixed, real coastlines have been added,
193 and many other subtle improvements.
194 * Tools for parallelizing the scenery building tasks. For instance by using
195 20 machines in parallel, scenery for the entire USA can be regenerated in
196 just over 4 hours vs. 70+ hours on a single machine.
197 * Texture scale can be specified (and changed)( in the materials file. The
198 sim must be rerun for the change to take effect.
199 * Windows now uses plib joystick code so rudder pedals should now work.
200 * Now builds against Steve Baker's plib (portable game devel library)
201 distributed separately (www.woodsoup.org/~sbaker/plib/)
202 * Many source code changes for the MacOS port contributed by Darrell
203 Walisser (the port isn't quite there yet ...)
204 * Source code changes for better compiling with the Borland compiler.
205 * Source code changes for better compiling with the native Irix compilers.
206 * Fixed a bug so you can now fly across the international date line (or
207 more precisely the division between longitude = +/-180.
208 * Tweaks to the Astro section contributed by Durk Talsma.
209 * Autopilot improvements contributed by Norman Vine.
210 * Fonts/characters now drawn with texture maps for increased speed.
211 * Instrument panel can be toggled on and off with "P".
212 * GUI interface for tweaking some autopilot parameters.
213 * HUD appearance and layout changes contributed by Norman Vine, includes
214 faster font drawing for much better performance.
215 * Reset function added to reset you to your starting conditions.
216 * GUI function to enter a new airport id (and be transported there)
217 * Added serial output support for an "in-development" full motion cockpit.
218 * "Just in time" texture loading to reduce initial sim loading time.
221 New in 0.59 (This is an intermediate/stepping stone release. Skip this
222 release if you are interested in stability.)
223 * IRIX portability changes and support for native SGI compilers.
224 * Solaris portability tweaks
225 * Incorporated some MacOS portability changes (although the port is not
227 * Changes to allow adjustment of the autopilot settings while it is
229 * Began complete overhaul of scenery generation tools.
230 * Fixed a view frustum culling bug.
231 * separated lib GPC (generic polygon clipper.) GPC is not "freeware" and
232 the author has explicitely refused our request to distribute source code
233 for this library with Flight Gear.
234 * updated installation and getting started guide
235 * switched to a simpler, lighter weight frame rate calculation method.
236 * new tile division scheme.
237 * GPS serial *output* fixes.
238 * Added a nifty halo to both the sun and moon. Preparation for allowing
239 subtle moon lighting effects at night.
240 * Incorporated Jon Berndt's new C++ flight model rewrite.
241 * Autopilot settings can be adjusted while active.
242 * Updates to the instrument panel.
243 * Fixed AOA reading on the HUD.
244 * Added random splash screens.
245 * Modified scenery loader to accept tri-fans.
246 * Other non-backwards compatible changes to scenery file format and tile
251 * Added JSBsim alpha code ... this is Jon S. Berndts alpha FDM rewrite.
252 Still lots to do, but you can watch a balistic flight for a short time.
253 * Renamed Simulator/Flight to Simulator/FDM
254 * Tweaks to assist building FGFS on solaris platforms.
255 * Moved Lib/DEM to Tools/DEM
256 * Started preparations for scenery generation tools overhaul.
257 * More MSVC++ support.
258 * Removed code that made the sun bigger at the horizon since this is just
259 an optical illusion in real life.
260 * Bug fixed so that the sim can start out at an airport below sea level.
263 * Converted to a simpler frame rate counting method.
264 * Fixed the AOA reading on the HUD.
265 * Removed gpc from the Lib section of distribution by request of the
266 gpc Author. The gpc license is unfortunately not compatible with
267 the GPL. I may look for an alternative library, or just require
268 that developers download this library separately.
269 * First slew of changes from the MacOS porting effort contributed by
270 "Robert Puyol" <puyol@abvent.fr>.
271 * Support for an arbitrary number of serial ports + additional serial port
273 * Serial output tweaks to make things more robust and act more like a GPS.
274 * Portability enhancements for Borland, Solaris, and SGI.
275 * Some internal class renaming and reorganizations. fgFLIGHT becomes FGState.
276 fgCONTROLS becomes FGControls.
277 * Started work on an "external" flight model so the sim can be driven from
278 external input (serial port, network, file, etc.)
279 * Fixed a problem that creeped in with setting the initial startup altitude.
280 This could cause an unrecoverable bounce and you'd end up flipped on your
281 back. Should be fixed now.
282 * Sun now appears to grow in size as it gets very low in the horizon.
283 * Fixed a view frustum culling bug where the scene was not accurately culled
284 when your view was anything other than straight forward.
287 * Changed default HUD units to the more standard feet units. You can still
288 use meters by specifying the command line option "--units-meters".
289 * Added some initial joystick support using Steve's joystick interface class.
290 This works great under Linux, but Steve's class now needs to be ported to
291 Windoze and other platforms.
292 * Also added a fall back to the GLUT joystick routines for windows (until
293 we can find better joystick support.)
294 * Added some initial serial port support for acting like gps and outputing
295 nmea data such that could be fed into a flight map software package.
296 * Miscellaneous code clean ups, portability improvements, and optimizations.
297 * Switched to a streams based error/debug logging system that can be
298 completely stripped out for a release build (./configure --without-logging)
299 * Support for cygwin32 b20 compiler (latest release)
300 * Continued progress on instrument panel
301 * Support for starting fgfs at higher resolutions.
304 * New version of gpc (generic polygon clipping library) from
305 http://www.cs.man.ac.uk/aig/staff/alan/software/
306 * Brakes (use "b" to toggle)
307 * Added an altitude hold module to the autopilot. Lock your current altitude
308 with "ctrl-a", "cntr-a" again will deactivate. (Also lock your current
309 heading with "ctrl-h", and again to deactivate.)
310 * Added a terrain following module ... "ctrl-t" to activate.
311 * Added an autothrottle ... "ctrl-s" to activate.
312 * Fixes so that terrain tools will work in windoze.
313 * More STL & Compiler compatibility fixes.
314 * Changes to use a Point3 class.
315 * Fixed win95/98 time problem that limited fps to about 18.3
318 * Implimented audio envelopes so that pitch of engine changes with throttle
319 * Textured moon, and rewritten/restructured Astro code.
320 * More optimizations and code cleanups. (Norman Vine, Bernie Bright, Charlie
322 * Bug fixed that was causing odd display artifacts due to a degenerate
323 fragment being created for every tile.
324 * Bug fixed that caused scenery generation to go bad (misplaced fclose on an
325 invalid file descriptor.)
326 * Code changes to support g++ 2.7 STL (from Bernie Bright)
329 * Some initial "GameGLUT" support contributed by Gary R. Van Sickle
330 (tiberius@braemarinc.com)
331 * Tracked down and eliminated some memory access type bugs that were
332 causing segfaults on some platforms, with some compilers using various
334 * Assorted code optimizations submitted by Norman Vine.
337 - Created a new directory Simulator/Airports/ to handle airport data
339 - Created Simulator/Object/ to handle basic rendering objects
340 * Panel code update from Friedemann Reinhard (use --enable-panel to activate)
341 * Contributions from Bernie Bright
342 - Created some new classes to enable pointers-to-functions and
343 pointers-to-class-methods to be treated like objects. These objects
344 can be registered with fgEVENT_MGR.
345 - File "Include/fg_callback.hxx" contains the callback class defns.
346 - Modified fgEVENT and fgEVENT_MGR to use the callback classes. Also
347 some minor tweaks to STL usage.
348 - Added file "Include/fg_stl_config.h" to deal with STL portability
349 issues. Added an initial config for egcs (and probably gcc-2.8.x).
350 Don't have access to Visual C++ so I've left that for someone else.
351 - This file is influenced by the stl_config.h file delivered with egcs.
352 - Added "Include/auto_ptr.hxx" which contains an implementation of the
353 STL auto_ptr class which is not provided in all STL implementations
354 and is needed to use the callback classes.
355 - Deleted fgLightUpdate() which was just a wrapper to call
357 - Modified fg_init.cxx to register two method callbacks in place of the
358 old wrapper functions.
359 - The new classes in libmisc.tgz define a stream interface into zlib.
360 I've put these in a new directory, Lib/Misc. Feel free to rename it
361 to something more appropriate. However you'll have to change the
362 include directives in all the other files. Additionally you'll have
363 add the library to Lib/Makefile.am and Simulator/Main/Makefile.am.
365 The StopWatch class in Lib/Misc requires a HAVE_GETRUSAGE autoconf
366 test so I've included the required changes in config.tgz.
368 There are a fair few changes to Simulator/Objects as I've moved
369 things around. Loading tiles is quicker but thats not where the delay
370 is. Tile loading takes a few tenths of a second per file on a P200
371 but it seems to be the post-processing that leads to a noticeable
372 blip in framerate. I suppose its time to start profiling to see where
375 I've included a brief description of each archives contents.
380 C++ stream interface into zlib.
381 Taken from zlib-1.1.3/contrib/iostream/.
382 Minor mods for STL compatibility.
383 There's no copyright associated with these so I assume they're
388 FlightGear input stream using gz_ifstream. Tries to open the
389 given filename. If that fails then filename is examined and a
390 ".gz" suffix is removed or appended and that file is opened.
393 A simple timer for benchmarking. Not used in production code.
394 Taken from the Blitz++ project. Covered by GPL.
398 Some simple string manipulation routines.
401 Load airports database using fgstream.
402 Changed fgAIRPORTS to use set<> instead of map<>.
403 Added bool fgAIRPORTS::search() as a neater way doing the lookup.
404 Returns true if found.
407 Modified fgStarsInit() to load stars database using fgstream.
410 Modified fgObjLoad() to use fgstream.
411 Modified fgMATERIAL_MGR::load_lib() to use fgstream.
412 Many changes to fgMATERIAL.
413 Some changes to fgFRAGMENT but I forget what!
416 * Stars added in 8 stages as sky gets darker for a smoother more realistic
418 * rewrote star loader to significantly improve load times.
419 * Tweaked sky brightness and dawn/dusk colors.
420 * Fixed a small problem with moon rendering.
421 * Fog color tries to track the sky color at the center of view in sunrise
422 and sunset situations.
423 * Optimizations from Norman Vine
424 * Code fixes and tweaks from Charlie Hotchkiss.
425 * Added an --enable/disable-sound option.
426 * Added a pause key "p"
427 * Added command line options to specify initial position and orientation.
428 * Added command line option to start in paused or unpaused state.
432 * Various HUD intensities so you can find something that is readable for the
433 current conditions and lighting.
434 * Tie visibility to far clip plane & view frustum culling so reducting
435 visibility can increase frame rates by increasing what is culled.
436 * Fixed stupid bug with misplaced initial position.
437 * Hopefully fixed a bug when parsing system.fgfsrc on windoze.
440 * HUD updates from Charlie Hotchkiss (ladder number rotate w/ ladder, control
441 position indicators are back)
442 * Only draw the PUI cursor if Mesa/Glide/Fullscreen.
444 * Calculate the model view transformation matrix once per tile per iteration.
445 Then glLoadMatrixd() it for each fragment rather than calling push(),
447 * Added a basic splash screen.
448 * Added support for switching between fullscreen and window mode for
450 * added an enable/disable splash screen option
451 * added an enable/disable intro music option
452 * added an enable/disable instrument panel option
453 * added an enable/disable mouse pointer option
454 * Ground collision detection. You can now land or test for collision with
456 * Converted angle of attack scale into a radio altimeter.
459 * Managment of multiple textures
460 * Incorporated Friedemann Reinhard's initial panel code.
461 * Fog mode is now GL_FOG_EXP2 instead of GL_FOG_LINEAR
462 * Build the non-shared pieces of the FG sim as static libs.
465 * Incorporated Steve Baker's PUI user interface library written
466 entirely on top of OpenGL
467 * Incorporated Steve Baker's Audio library which currently only
468 supports Linux, but a win32 port is very close to being done.
469 * Sort object fragments by material property before rendering. This
470 will be a big help to performance when we start including objects
471 with a wide variety of material properties and textures.
472 * Overlapped scenery tiles to reduce the chance of an occasional
473 floating point precission induced gaps.
474 * Fixed a bug in zlib exposed by Borland Win32 compiler.
475 * Impose a maximum triangle area during scenery generation so even
476 very flat areas will get split into a few smaller sub triangles.
477 * Fine grained (fragment level) view frustum culling.
478 * view transformation optimizations -- Norman Vine.
479 * Fixed polygon winding problem in scenery generation, so all
480 tri-strips are wound counter clockwise (opengl default).
483 * Course (per tile) view frustum culling.
484 * Added a command line option to specify --fg-root which will override
486 * Hard coded default locations for FG_ROOT for situations when nothing
487 is specified. Unix = /usr/local/lib/FlightGear Win32 = \FlightGear
488 * Restructured the command line processing code so that it can process
489 these sames comands (one per line) out of a config file.
490 * Added a command line option to specify field of view. This is
491 adjustable at run time using "X / x". Supporting code contributed
495 * Complete C++ re-write of the HUD section.
496 * Miscellaneous bug fixes and tweaks.
499 * Added an option to enable/disable wireframe rendering.
500 * Added an option to enable/disable fog/haze.
501 * Added an option to enable/disable sky blending.
502 * Added an option to select smooth/flat polygon shading.
503 * Added an option to enable full-screen mode.
504 * Added a visual frame rate counter on the HUD. (Contributed by Durk Talsma)
505 * Autopilot updates (Jeff Goeke-Smith)
506 * Added an option to control the number of neighboring tiles that are drawn
509 * Fixed a horible bug that cause the time to be *WAY* off when
510 compiling with the CygWin32 compiler.
511 * Wrap up zlib so we can conditionally compile back in normal behavior
512 on systems that have trouble building zlib.
513 * Minor adjustment to texture coordinate generation to reduce texture
515 * Added a command line option to enable/disable texture maps
516 * Minor transformation adjustments to try to keep scenery tiles closer
517 to (0, 0, 0) GLfloats run out of precision at the distances we need
518 to model the earth, but we can do a bunch of pre-transformations
519 using double floats and then cast to GLfloat once everything is
520 close in where we have less precision problems.
521 * command line option to set starting position by airport ID
522 * Cleaned up initialization sequence to eliminate interdependencies
523 between sun position, lighting, and view position. This creates a
524 valid single pass initialization path.
525 * use already calculated LaRCsim values to create the roll/pitch/yaw
526 transformation matrix
529 * material properties bug fixed when rendering terrain.
530 * bug in sky color generation fixed.
531 * bug in fog color generation fixed.
532 * zlib on the fly decompression/compression support.
533 * more code reorganization and clean ups.
534 * a fixed up 30 arcsec DEM file preprocessor. World wide DEM's are
535 available in this format.
538 * Simple autopilot heading hold contributed by
539 Jeff Goeke-Smith <jgoeke@voyager.net>
540 * More code reorganization and clean ups.
543 * Many autoconf cleanups and tweaks
544 * make and make install work in unix
545 * make works for cygnus win32 (but not install yet)
546 * make dist now works
547 * added the Tools directory into the main source tree
550 * Gnu automake/autoconf/libtool make system
551 * Initial texture support