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#286 Turbulence preset not working/going wild
Originally created by: grg.gdsr (code.google.com)
*What steps will reproduce the problem?*
1. Take of from any airport in either aircraft.
*What is the expected output? What do you see instead?*
Expected is smooth flying especially with no air turbulence.
What I see: flying manually or autopilot is very rough. It is so rough that it is almost impossible to land safely.
*Any output in the console (black window)?*
No
*What version of the product are you using (when using GIT version, please
mention date or Hudson build number)?*
Revision: [r12f694f06d9f2ffabb66959bb3f055074cee9473]
Build-Id: none
FG_ROOT=/usr/share/FlightGear/install/fgfs/bin/../fgdata/
FG_HOME=/home/cebif/.fgfs
FG_SCENERY=/usr/share/FlightGear/install/fgfs/bin/../fgdata//Scenery:/usr/share/FlightGear/install/fgfs/bin/../fgdata//Scenery/Terrain:/usr/share/FlightGear/install/fgfs/bin/../fgdata//Scenery/Objects:
SimGear version: 2.2.0
PLIB version: 186
*What operating system and graphics card?*
Ubuntu 10.10
graphics card: Geforce 7950GT
*Please provide any additional information below or as attachment (Avoid
expiring external links, such as to imageshack/pastebin/...).*
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Originally posted by: aeitsch...@yahoo.de
What do you mean with "rough"?
Which FlightGear version? Date, Release Snapshot, compiled by yourself, script....
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Originally posted by: aeitsch...@yahoo.de
(No comment was entered for this change.)
Labels: Aircraft FDM YASIM
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Originally posted by: grg.gdsr (code.google.com)
What I mean by rough; is aircraft suddenly moving side to side and up and down.
How do I get the date/snapshot?
I used the download_and_compile.sh script from:
http://wiki.flightgear.org/index.php/Scripted_Compilation_on_Linux_Debian/Ubuntu#Multicore_Acceleration
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Originally posted by: grg.gdsr (code.google.com)
Another aircraft that flies roughly is the 777-ER.
I also tried with the latest version from today, 9/3/11: [rf6fde388a2037341c7ce2a00e8ac199dff3c59a1]
it also has the same bug.
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Originally posted by: aeitsch...@yahoo.de
I still don't see what you mean under "rough". Here on win32 with GIT from yesterday it works as it should.
It could be that something is wrong with the script and FGFS isn't compiled as it should be.
I hope other users of this script can help here
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Originally posted by: grg.gdsr (code.google.com)
What I mean by "rough": as in extreme air turbulence but no air turbulence in reality. I will see if I can get a script from somewhere else and see if that is the problem.
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Originally posted by: grg.gdsr (code.google.com)
I turned on debug to see if I could get output in the terminal while flying the 787.
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Originally posted by: grg.gdsr (code.google.com)
The only thing it shows is ac3d reader unable to find textures. I don't see how that might make the flying rough or unstable.
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Originally posted by: kanto... (code.google.com)@gmail.com
Issue present on Debian Squeeze i686 32 bit, libboost 1.42, with today's Git for Simgear and Flightgear, compiled from scratch both with the script and manually after git clean -f -d -x
OSG version: 2.9.10
Steps to reproduce: fly any YASim airplane, Cub chosen for testing. Airplane bobs around in the air and after engaging autopilot with fixed heading and 0 vertical speed plane can be observed to fly in a nose down attitude while perfoming uncontrolled moves about all axes. JSB planes not affected.
The same issue is not visible on Gentoo 64 bit.
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Originally posted by: kanto... (code.google.com)@gmail.com
This issue seems to be caused by usage of switch --turbulence=0.0 or --turbulence=0
As far as I can tell, it was caused by the following commit:
http://gitorious.org/fg/flightgear/commit/a81103341e7f7de92758a961c0365a21aa84be17/diffs
My take on it is that it messed up somehow air density for YASim.
Please confirm that removing that option switch gets rid of the problem.
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Originally posted by: grg.gdsr (code.google.com)
Yes without the "--turbulence=0" trying a 787, It flies smoothly.
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Originally posted by: aeitsch...@yahoo.de
I think it is natural that an aircraft isn't flying smooth in turbulence.
Does it happens with real weather fetch or with any of those presets?
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Originally posted by: kanto... (code.google.com)@gmail.com
Of course it's natural for turbulence to affect aircraft. Only in this case turbulence is explicitly disabled by setting it to zero ;)
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Originally posted by: aeitsch...@yahoo.de
It would maybe help if you could answer my question. So Please....
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Originally posted by: aeitsch...@yahoo.de
(No comment was entered for this change.)
Labels: Weather
Cc: cumuluni...@gmail.com
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Originally posted by: kanto... (code.google.com)@gmail.com
Perhaps there is some misunderstanding here. As stated previously, the issues ONLY appears when turbulence is explicitly disabled with --turbulence=0
It does not appear under any other circumstances (that I am aware of).
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Originally posted by: bre... (code.google.com)@gmail.com
Oops, indeed - the turbulence preset didn't work at all. Thanks for the report.
Any turbulence preset resulted in the turbulence being set to the maximum value. That was a general issue, not specific to any plane/FDM.
Should by fixed by:
http://www.gitorious.org/fg/fgdata/commit/3aec048ffefdc6e09b8959c1022ebb77b0dd682e
Pull latest FGDATA and report if it works for you.
Summary: Turbulence preset not working/going wild
Status: Testing
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Originally posted by: bre... (code.google.com)@gmail.com
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Labels: -Aircraft -YASIM
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Originally posted by: kanto... (code.google.com)@gmail.com
Fixed. Thank you, that was fast.
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Originally posted by: bre... (code.google.com)@gmail.com
(No comment was entered for this change.)
Status: Fixed
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Originally posted by: bre... (code.google.com)@gmail.com
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Status: Temp
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Originally posted by: bre... (code.google.com)@gmail.com
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Status: Fixed