Changes

Jump to: navigation, search

Changelog 3.2

4,883 bytes removed, 19:30, 13 October 2014
Updated changelog after trawl through git logs
==Upcoming FlightGear Changelog==
The FlightGear development team is delighted to announce the v3.2 release of FlightGear, the free, open-source flight simulator. This new version contains many exciting new features, enhancements and bugfixes. Highlights in this release include an experimental aircraft manager allowing users to download and load aircraft in-sim, a very capable built-in HTTP server, built-in voice synthesizer for ATIS messages, and many improvements to the Canvas rendering framework...
Founded in 1997, FlightGear is developed by a worldwide group of volunteers, brought together by a shared ambition to create
FlightGear - Fly Free!
 
=== Breaking Changes ===
 
=== Major enhancements in this release ===
 
'''Surface Light Effects & OpenSceneGraph 3.2'''
 
Stuart committed a change that brings surface lights, including VASI/PAPI/taxi/runway etc. into the xml-defined Effects framework. Kudos to Tim Moore for his original Effects work - it made it very straightforward to enhance with support for point sprites and a custom texture generator required.
 
The relevant effect is data/Effects/surface-lights.eff. It should allow development of ALS and Rembrandt variants.
 
Stuart also replaced some OSG color/normal binding calls that were removed in OSG3.2.0, apparently because they were slow. So, if your
build fails, please check you've got a recent OSG build installed.
 
'''Core'''
* [[Reset & re-init]] is merged and now enabled
* A segfault related to scripted Nasal fgcommands (like used in joystick and other bindings) has been fixed {{Issue|1397}}
* YASim now has versioning support. The YASim FDM now checks a version tag in it's configuration file to eventually provide backward compatibility.
* A text-to-speech system based on flite+hts_engine has been implemented.
* ATIS messages, previously hard coded in C++, are now generated based on customizable XML configuration files. Their audio now gets generated by the new text-to-speech system.
* Windows dependencies have been updated
* The integrated [[Map]] dialog now uses an azimuthal equidistant projection, for better representation in polar regions and across the International Date Line.
* A new internal web server (aka httpd) based on mongoose httpd has been added. It supports various AJAX requests, a screenshot server, a property tree browser and much more.
* A web browser based moving map has been added using the new AJAX capabilities of FlightGear
'''Aircraft Modeling'''
* [[A Failure Management Framework for FlightGear]] has been added
* The JSBSim flight dynamics model now has support for ground effects like bumpiness, solid-ground detection and adjusting of friction factors. Additionally, bogey type contact points sink in non-solid surfaces, making it no longer possible to ride on water.
* YASim now has versioning support. The YASim FDM now checks a version tag in it's configuration file to allow improvements to the YASim FDM without risking breaking older aircraft.
* Additional aircraft have started adopting the [[NavDisplay|Canvas navigation display]] that was introduced with FlightGear 3.0.
'''JSBSimGraphics'''* The JSBSim flight dynamics model now has support for ground effects like bumpiness, solid-ground detection and adjusting Improved rendering of friction factors. AdditionallyVASI, bogey type contact points sink in non-solid surfacesPAPI, making it no longer possible to ride on waterrunway and taxiway lights'''Atmospheric Light Scattering''' * Additions to the Atmospheric Light Scattering (ALS) is one of FlightGear's three rendering frameworks, with the aim of providing an integrated simulation of the interaction between weather, light and the environment. Additions to ALS in version 3.2 include: ** an experimental framework to render cloud shadows on the ground (requires Advanced Weather)** a substantial extension of cloud layer visibility using impostor techniques to 150 km** a new agriculture effect allowing to render fields without tiling artifacts** a new forest effect to simulate managed forest, varying tree size by patch** sparkle and fog effect on runway lights** much improved visual appearance of rock faces  '''Environment Rendering''' * EarthView, a simple orbital rendering engine based on projecting a textured sphere into the scene. By default, EarthView uses low resolution textures, however using hires textures e.g. from the NASA [http://visibleearth.nasa.gov/ Visible Earth] project very realistic results from altitudes above 100 km can be achieved.* New deciduous and needle tree textures with much improved visuals* New regional texture definitions for Ireland, Alaska/Northwest territories and US Southwest  '''Performance'''As a side effect of a fixed bug, a huge performance boost with respect to frame rate can be seen on some machines. The implementation of a Uniform-Cache for shader-effects has reduced the CPU workload significantly.  '''Misc/Uncategorized'''* AIModels use PagedLOD* Optimise NavCache airport query* osg::Switch for masking scenery rendering* Torsten's metar work, newradio, mongoose httpd* HTTP: improve handling of connection errors* Windows installer has been reworked* Windows installer creates 3 news directories pre-configured in FGRun:** {user}\Documents\FlightGear\Aircraft** {user}\Documents\FlightGear\TerraSync** {user}\Documents\FlightGear\Custom Scenery
''' Usability '''
* An experimental aircraft package manager allows the download of new aircraft, and changing the current aircraft in-sim.
* A new internal web server (aka httpd) based on mongoose httpd has been added. It supports various AJAX requests, a screenshot server, a property tree browser, and a web-based moving map and much more.
* The integrated [[Map]] dialog now uses an azimuthal equidistant projection, for better representation in polar regions and across the International Date Line.
* Windows users are now able to use the scroll wheel in dialog lists
 
''' Scenery '''
 
'''Canvas System'''
Improvements to Canvas, FlightGear's fully scriptable 2D rendering system now includes improved APIs for creating maps and navigation displays amongst many other improvements. People no longer need to have programming experience to add a working ND to their aircraft, it can now be all done by copying and pasting 30 lines of text and customizing a few properties. The so called MapStructure back-end handles efficient updating of all ND layers transparently. Also, maps can now be mostly customized, including custom styling (colors, fonts, symbols etc).include* Tom has pushed an update to git (simgear) which removes a lot of unneeded OpenGL state changes for Canvas paths. Depending on the GPU/driver this can lead to quite a noticeable performance improvement. For example, he was able to get from ~120ms down to ~45ms [http://forum.flightgear.org/viewtopic.php?f=71&t=16984&p=204730#p204730].<!-- code freeze ...* Hooray is working on adding shader support to Canvas {{Progressbar|30}}-->* The [[MapStructure]] back-end used by the [[NavDisplay]] now supports symbol instancing, so that Better performance is improved
* MapStructure-based layers can now be customized and styled
* Tom added support Support for mouse button/and modifiers (mouse handling) [http://wiki.flightgear.org/index.php?title=Canvas_Event_Handling&curid=10777&diff=68569&oldid=68422]* CanvasImage now supports the ''http://'' protocol for dynamically retrieving raster images. See the renamed [[Canvas_Image#src|src attribute]] (''file'' is now deprecated).* As part of the ongoing effort on [[Unifying the 2D rendering backend via canvas]], we have started re-implementing the integrated [[An experimental Map]] dialog using Nasal & Canvas instead of C++ {{Progressbar|80}}* Custom event handlers can now be registeredis available under the Equipment menu.
* Canvas Layout Engine
* Canvas-based dialog for downloading aircraft [[Aircraft Center]]
'''Nasal Scripting'''
 
* getprop()/setprop() arguments (those that form a path) can now be numeric to specify a index, so:
<syntaxhighlight lang="nasal">
getprop("canvas/by-index", "texture", 1, "name");
</syntaxhighlight>
: is now the same as:
<syntaxhighlight lang="nasal">
getprop("canvas/by-index/texture[1]/name");
</syntaxhighlight>
: (see [https://gitorious.org/fg/flightgear/commit/5eee5e42ae4f5cf56283b3bf5a3be46efc2b51c4 merge request 54] and [https://gitorious.org/fg/flightgear/commit/34ed79e5f88ffdfc5e651a1fe3e639cb8f4d3353 actual commit])
* A new fully-interactive Nasal GUI console based on [[Canvas]] has been added: [[Interactive Nasal Console]]
* the hard-coded '''flight path history''' subsystem which samples aircraft position, which was previously only accessible to C++ code, has is now been exposed to scripting space by Tom so that people can easily access the system and reuse the data for their own purpoes (e.g. for creating an instructor console). The first use-case will involve the new [[Canvas]] based [[Map]] dialog which will be 100% scripted by then. : Usage:<syntaxhighlight lang="nasal">var hist = aircraft.history(); debug.dump(hist.pathForHistory(50));</syntaxhighlight>* cppbind: via Nasal ghosts can now support arbitrary setters/getters for when members are not mapped to a C++ member/method.* Language enhancements** Bitwise operators (|, &, ^, ~, |=, &=, ^=)** Support for octal, decimal and hexadecimal numbers in literals as well as in strings
'''Documentation'''
* Nasal documentation is now included,
'''Highlighted new and improved aircraft'''
'''Other'''
* A text-to-speech system based on flite+hts_engine has been implemented, which is used for ATIS and other messages.
* Improved loading behaviour for AI/MP aircraft
'''Bug fixes'''
* A serious bug has prevented FlightGear version 3.2 being released on time. Identified by was found late in the clumsy name "crash in SGPropertyNode::fireValueChanged", this bug clearly was a release blocker and it took a lot causing large numbers of effort to identify the cause for the crashcrashes. Finding Fixing this delayed he release, but had a solution was even harder but was finally accomplished and presented the nice side-effect of a noticeable improving performance booston some systems that were previously CPU-limited.
* See [http://code.google.com/p/flightgear-bugs/issues/list?can=1&q=Milestone%3D3.2 our bugtracker] for an extensive, yet incomplete, list of the bugs fixed in this release.
[[Category:FlightGear changelogs]]

Navigation menu