For Windows, default file mode is TEXT.
If binary files should be created _O_BINARY shall be or'ed to the open
flags. This is not necessary on *nixes.
Introduce a SGBinaryFile as extension to SGFile which adds the flag
upon construction on Windows.
This should keep existing behaviour for all other usages of SGFile.
Let terrasync use the http repository if
/sim/terrasync/http-server == "automatic"
resolve DNS NAPTR RR for terrasync.flightgear.org with service "ws20"
and flags "U". Pick one of the returned entries with lowest order
and preference. If more than one entry with the same order and
preference is returned, pick a random entry of those returned.
or if
/sim/terrasync/http-server != "automatic"
explicitly use the value of that property as the http server
if
/sim/terrasync/http-server is empty, fall back to the legacy
SVN repository
- import udns library
(http://www.corpit.ru/mjt/udns.html)
- initial draft for a DNSClient (derived from HTTPClient)
Enable compile and test by adding -D ENABLE_DNS=Yes to cmake flags
add a create-flag to the node() method of a PropertyObject,
defaulting to false to maintain existing behaviour.
This could be used to add a listener to a non-existing property
without having to write a dummy-value beforehand.
Usage:
myPropertyObject->node() returns the corresponding node or NULL if
does not exist or has not been accessed before.
myPropertyObject->node(true) returns the corresponding node, never NULL.
If the property does not exist, it will gets created.
Our paged models used the default minimumExpiryTime of zero seconds
which caused frequent stutter with AI traffic loaded.
This patch sets the minimumExpiryTime to 180 seconds, more than enough
to hold the models in memory during a full standard rate turn.
The property to set the expiry time is
/sim/rendering/plod-minimum-expiry-time-secs
Since the consensus seems to be that the precipitation clipping issue is with the panel code, attached is my proposed update for the precipitation system in SG and FG
* without corresponding control structures in FGData it falls back to default, except I have fixed an inconsistency in freezing behavior - previously rain changed suddenly to snow when the temperature dropped below zero, but the reverse transition was dragged out and gave odd visible motion with the wind as snow gradually changed back to rain with the particle speed not well defined. Now both transitions are sudden. And I see no more particles flow against the wind
* with
<!-- definitions for the detailed precipitation manager -->
<precipitation-control>
<rain-droplet-size type="float" userarchive="n">0.015</rain-droplet-size>
<snow-flake-size type="float" userarchive="n">0.03</snow-flake-size>
<detailed-precipitation type="bool" userarchive="n">false</detailed-precipitation>
<illumination type="float" userarchive="n">1.0</illumination>
<clip-distance type="float" userarchive="n">5.0</clip-distance>
</precipitation-control>
added to Environment/environment.xml, the new system allows to switch more detailed management on. This provides
* explicit setting of rain droplet size and snow flake size by the weather system
* automatic sqrt(r) scaling of the vertical speed of raindrops
* automatic transition to snow when freezing for small droplets but hail for large droplet sizes (looks like snow, but has different particle dynamics)
* an illumination scaling factor to dim the precipitating based on the light we have in the scene (I still need to devise a property rule to set this automatically)
The clip distance is also exposed now and considered at startup of the system - might be useful for e.g. airships when the gas bag provides rain cover (?) or to be simply off for open airplanes
Thorsten Renk:
The following patch sets the sun color to alpha=0 when
the sun is below the local horizon, removing the oddity
that the sun is seen 'through' the terrain when the terrain
at large distance is rendered by the skydome.
Stuart has improved the UniformCache approach, here are his
changes:
- We have a UniformCache so that each unique Uniform is only created once
- As part of the UniformFactory we also have a queue of listeners that are still to be added
- When the main thread sends an Update node visitor across the Effects,
all queued listeners are de-queued and added.
The effect system used Listeners on property nodes to get the values
for shader uniforms. These listeners get deleted by an osg thread
causing access to freed memory when this happens while the main thread
calls fireValueChanged.
This patch changes the update method to polling for scalar properties.
This isn't 100% threadsafe, too. But at least it does not crash anymore.
executing the fgcommand loadxml implicitely untied every previously
tied property if a property type was given in the property element.
That made it impossible to autosave aircraft data for tied properties.
This patch should fix this. It adds an inconsitency, though:
if a property with a given type is read in which has been tied to
before and the property types do not match, the property type in the
xml file will be ignored.
New feature for <condition> elements:
An (optional) element <precision> allows for fuzzy equals checks
example:
<condition>
<equals>
<property>/foo</property>
<value type="double">0.0</value>
<precision>0.1</precision>
</equals>
</condition>
This condition evaluates as true if /foo is within [-0.05..0.05]
(both inclusive)
The precision tag works for int, long, float and double propeties.
It has no meaning for bool properties. For string properties,
precision sets the length of the strings to compare.
version.h is generated by the build system for official builds of
FlightGear. To avoid complicating the life of regular developers,
especially on Windows, we set HAVE_VERSION_H if version.h is generated.
If that define is not set, we include this file instead, which provides
placeholder values instead.
Due to fingertrouble, I removed the check for _step == 0 which
this patch re-adds.
Also, make this function look more like a template by not using
0.0 - constants.
msdn article 737550 states that "the preferred method is to call the
bind function to associate a socket with a local IP address and then
join the multicast group. Although this order of operations is not
mandatory, it is strongly recommended".
Since binding to the multicast address seems to fail, let's try binding
to INADDR_ANY and joint thereafter.
This class and their source files visual_enviro.[h|c]xx were
unused since OSG transition. It's only functionality was to
keep a variable for the enable-state of rendering of precipitation.
This has now been moved to SGPrecipitation.
Stuart Buchanan:
Improvements to the global 3D clouds system
- clouds now move with the wind
- bug causing cloud coverage to be less than it should have been fixed
- support for adding 3D clouds with an fg_command.
(https://gitorious.org/fg/flightgear/merge_requests/1554)
SGMisc<T>::normalizePeriodic(min,max,value) returned zero for
all values less than min.
Example:
A call of normalizePeriodic(0,twopi(),-pi()) returned zero
where the correct value would be 3*pi().
Torsten Dreyer