[Flightgear-devel] [SPAM] Re: about yasim's rotor model

[Atadjanov Daniyar]

Hi, Cesar!It's great to see that somebody is working on Russian helis. On what model are you working on?Daniyar29.10.09, 16:40, "César Espinoza" :oh thanks very much, i'll try the pedal's effect.. modelling a Russian helicopter is an interesting thing.-Cesar Gastón2009/10/29 Heiko Schulz Hi,> Hi, i'm playing a little with Yasim FDM> for helicopters, modifying some xml parameters. I run my> Flightgear 1.9 on ubuntu 9.04_64>> i found i can't change the rotation of the rotor. I> understood changing the "ccw" parameter in the> yasim configuration file from 1 to 0 in any helicopter then> the rotor turns in clockwise, but it doesn't happen.It does, but you have to change the animation as well. You will notice when you suddenly have to step into the other pedal to stop the jaw...So it is more an animation issue.>...just the rotor 3D object turns> clockwise (the 3D rotational axis is z negative), the main> rotor is still counterclockwise> (/rotors/main/blade/position-deg increases, a clockwise> rotor should decrease this value?).So much as I know this is more a nasal thing, as the YASim-heli-fdm don't have support for engines, and this is faked by a nasal script. This "position-deg" is more for animation. (The bo105 uses this, the s76 make use of rotor-rpm for that as an example)>>> does the ccw="0" change the "Dissymmetry of> lift" effect anyway?Yep!The YASim-heli-fdm simulates all things very accurat except engines and vortex-ring-state!>> thanks (sorry my limited english)>> -Cesar Gaston>I hope I could help, maybe Maiks reads here and can answer further details.CheersHeiko--Come build with us! The BlackBerry(R) Developer Conference in SF, CAis the only developer event you need to attend this year. Jumpstart yourdeveloping skills, take BlackBerry mobile applications to market and stayahead of the curve. Join us from November 9 - 12, 2009. Register now!http://p.sf.net/sfu/devconference___Flightgear-devel mailing listFlightgear-devel@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/flightgear-devel--
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Re: [Flightgear-devel] Unable to view scenery in Flightgear, OK in Atlas

[Ron Jensen]

Jason,

Newer versions of fgfs have a command line switch "--fgviewer" that will
show a tile to you without need of starting all the flightgear systems.

 $fgfs --fgviewer YGDH.btg.gz

What I am seeing is all your terrain is coming out flat and in sea/water
texture.  By zcatting one of you terrain files through strings:
 
 $zcat Scenery/Terrain/e150s30/e150s30/5410562.btg.gz | strings

The only texture listed is ocean.

Your missing something with the terragear build chain.

Ron


On Fri, 2009-10-30 at 08:05 +1100, Jason Cox wrote:
> I forgot to say, a sample is available at
> http://globelock.mine.nu/YWLM.tgz
> 
> Jason
> 
> 
> On Fri, 2009-10-30 at 07:42 +1100, Jason Cox wrote:
> > Hi everyone,
> > I have been generating Scenery now for a few days experimenting with
> > data sources along the way.
> > I currently have some scenery that shows as expected in atlas (area
> is
> > around YWLM).The coast and major roads show up correctly. The
> problem is
> > that when I start Flightgear using the scenery I just get an ocean
> > tile. 
> > 
> > I am not sure how to procced from here and any help would be greatly
> > appreciated.
> > 
> > Jason


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Re: [Flightgear-devel] New Sound system committed

[Nicolas Quijano]

Little mistake : The wind sound, which wasn't audible before, is now vastly
over the sound of the rumble, which I had mistakenly thought was the wind
(it makes for a better wind on wings sound, from this point of hearing
approximately between my ears)
The wind sample we use is indeed very saturated, and was drowned by the
rumble sample before.
Do you have an overview of how differently are the sounds .xml configs
interpreted vs the previous sound implementation ?
What has changed in that regard, if anything, and would you by any chance
know why there could be such a huge difference ?
Because same sound config, wildly different results.
Thanks in advance for your insights.

So never mind : sound quality might well be as good at it ever was (or even
better), sorry for that, didn't mean to muddle things up.

Cheers,
Nic


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Re: [Flightgear-devel] New Sound system committed

[Scott Hamilton]

On Thu, 2009-10-29 at 09:45 -0600, dave perry wrote:

Hurray! another build with working engine sounds, great debugging
work by all. 


S.



> Hi Erik,
> Updated both my core2 duo (64 bit FC10) and my Athlon XP 3200+ (32 bit 
> FC10) both running FC10 openal and freealut distribution rpms.  ATC and 
> aircraft sounds are now working on both systems.  Neither had aircraft 
> sounds before this update. Thanks for all your work!
> Dave P.
> 
> 
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Re: [Flightgear-devel] about yasim's rotor model

[César Espinoza]

oh thanks very much, i'll try the pedal's effect.. modelling a Russian
helicopter is an interesting thing.

-Cesar Gastón


2009/10/29 Heiko Schulz 

> Hi,
>
> > Hi, i'm playing a little with Yasim FDM
> > for helicopters, modifying some xml parameters. I run my
> > Flightgear 1.9 on ubuntu 9.04_64
> >
> > i found i can't change the rotation of the rotor. I
> > understood changing the "ccw" parameter in the
> > yasim configuration file from 1 to 0 in any helicopter then
> > the rotor turns in clockwise, but it doesn't happen.
>
>
> It does, but you have to change the animation as well. You will notice when
> you suddenly have to step into the other pedal to stop the jaw...
> So it is more an animation issue.
>
>
> >...just the rotor 3D object turns
> > clockwise (the 3D rotational axis is z negative), the main
> > rotor is still counterclockwise
> > (/rotors/main/blade/position-deg increases, a clockwise
> > rotor should decrease this value?).
>
> So much as I know this is more a nasal thing, as the YASim-heli-fdm don't
> have support for engines, and this is faked by a nasal script. This
> "position-deg" is more for animation. (The bo105 uses this, the s76 make use
> of rotor-rpm for that as an example)
>
> >
> >
> > does the ccw="0" change the "Dissymmetry of
> > lift" effect anyway?
>
> Yep!
> The YASim-heli-fdm simulates all things very accurat except engines and
> vortex-ring-state!
> >
> > thanks (sorry my limited english)
> >
> > -Cesar Gaston
> >
> I hope I could help, maybe Maiks reads here and can answer further details.
> Cheers
> Heiko
>
>
>
>
>
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[Flightgear-devel] about yasim's rotor model

[César Espinoza]

Hi, i'm playing a little with Yasim FDM for helicopters, modifying some xml
parameters. I run my Flightgear 1.9 on ubuntu 9.04_64

i found i can't change the rotation of the rotor. I understood changing the
"ccw" parameter in the yasim configuration file from 1 to 0 in any
helicopter then the rotor turns in clockwise, but it doesn't happen.
similar attempt was made at:
http://www.flightgear.org/forums/viewtopic.php?f=4&t=5251&st=0&sk=t&sd=a&start=30for
a "mi-6" model. When executed, it seems like a clockwise rotor, uses
the
ccw="0" parameter, but it really is not clockwise, just the rotor 3D object
turns clockwise (the 3D rotational axis is z negative), the main rotor is
still counterclockwise (/rotors/main/blade/position-deg increases, a
clockwise rotor should decrease this value?).

does the ccw="0" change the "Dissymmetry of lift" effect anyway?

thanks (sorry my limited english)

-Cesar Gaston
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Re: [Flightgear-devel] about yasim's rotor model

[Heiko Schulz]

Hi,

> Hi, i'm playing a little with Yasim FDM
> for helicopters, modifying some xml parameters. I run my
> Flightgear 1.9 on ubuntu 9.04_64
> 
> i found i can't change the rotation of the rotor. I
> understood changing the "ccw" parameter in the
> yasim configuration file from 1 to 0 in any helicopter then
> the rotor turns in clockwise, but it doesn't happen.


It does, but you have to change the animation as well. You will notice when you 
suddenly have to step into the other pedal to stop the jaw...
So it is more an animation issue.


>...just the rotor 3D object turns
> clockwise (the 3D rotational axis is z negative), the main
> rotor is still counterclockwise
> (/rotors/main/blade/position-deg increases, a clockwise
> rotor should decrease this value?).

So much as I know this is more a nasal thing, as the YASim-heli-fdm don't have 
support for engines, and this is faked by a nasal script. This "position-deg" 
is more for animation. (The bo105 uses this, the s76 make use of rotor-rpm for 
that as an example)

> 
> 
> does the ccw="0" change the "Dissymmetry of
> lift" effect anyway?

Yep!
The YASim-heli-fdm simulates all things very accurat except engines and 
vortex-ring-state!
> 
> thanks (sorry my limited english)
> 
> -Cesar Gaston
> 
I hope I could help, maybe Maiks reads here and can answer further details.
Cheers
Heiko


  

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Re: [Flightgear-devel] Unable to view scenery in Flightgear, OK in Atlas

[Martin Spott]

Jason Cox wrote:

> I currently have some scenery that shows as expected in atlas (area is
> around YWLM).The coast and major roads show up correctly. The problem is
> that when I start Flightgear using the scenery I just get an ocean
> tile. 

Might $FG_SCENERY need a fix ? Please post a sample to a public place,

Martin.
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[Flightgear-devel] about yasim's rotor model

[César Espinoza]

Hi, i'm playing a little with Yasim FDM for helicopters, modifying some xml
parameters. I run my Flightgear 1.9 on ubuntu 9.04_64

i found i can't change the rotation of the rotor. I understood changing the
"ccw" parameter in the yasim configuration file from 1 to 0 in any
helicopter then the rotor turns in clockwise, but it doesn't happen.
similar attempt was made at:
http://www.flightgear.org/forums/viewtopic.php?f=4&t=5251&st=0&sk=t&sd=a&start=30for
a "mi-6" model. When executed, it seems like a clockwise rotor, uses
the
ccw="0" parameter, but it really is not clockwise, just the rotor 3D object
turns clockwise (the 3D rotational axis is z negative), the main rotor is
still counterclockwise (/rotors/main/blade/position-deg increases, a
clockwise rotor should decrease this value?).

does the ccw="0" change the "Dissymmetry of lift" effect anyway?

thanks (sorry my limited english)

-Cesar Gaston
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Re: [Flightgear-devel] Unable to view scenery in Flightgear, OK in Atlas

[Jason Cox]

I forgot to say, a sample is available at
http://globelock.mine.nu/YWLM.tgz

Jason


On Fri, 2009-10-30 at 07:42 +1100, Jason Cox wrote:
> Hi everyone,
> I have been generating Scenery now for a few days experimenting with
> data sources along the way.
> I currently have some scenery that shows as expected in atlas (area is
> around YWLM).The coast and major roads show up correctly. The problem is
> that when I start Flightgear using the scenery I just get an ocean
> tile. 
> 
> I am not sure how to procced from here and any help would be greatly
> appreciated.
> 
> Jason
> 
> 
> --
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[Flightgear-devel] Unable to view scenery in Flightgear, OK in Atlas

[Jason Cox]

Hi everyone,
I have been generating Scenery now for a few days experimenting with
data sources along the way.
I currently have some scenery that shows as expected in atlas (area is
around YWLM).The coast and major roads show up correctly. The problem is
that when I start Flightgear using the scenery I just get an ocean
tile. 

I am not sure how to procced from here and any help would be greatly
appreciated.

Jason


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Re: [Flightgear-devel] New Sound system committed

[Nicolas Quijano]

Ditto here on windows vista 64 using OpenAL SDK (for this build). The wind
noise has changed "texture", as if it was heavily saturated, while it use to
be a nice wind sound. I guess maybe volume is too high on it.

And that can be tweaked I guess through the xml file. It really doesn't
sound the same as my Oct 2nd build, all things being equal (same data)
We're not quite back where we were in sound quality, but at least sounds
seems to be all working now.
Haven't done a debug build yet, will advise if it still crashes.
Sound is a bit sensitive to camera movement right now, from a quick "hearing
test" :)

Quick note : the volume slider is pretty much useless at the moment, maybe
to a change in the volume attenuation scale ?
It only has effect in the leftmost part of the slider (so low end of volume)
, maybe the last 1/8th of the slide, and then brutally diminishes sound.
Before that, no discernible difference in volume.


That said, again thanks for the hard work Erik (and everyone else)
Cheers,
Nic



On Thu, Oct 29, 2009 at 1:17 PM, Alan Teeder  wrote:

> It compiles and sounds are back! That was quick.
>
> Well done
>
> Alan
>
> > -Original Message-
> > From: Erik Hofman [mailto:e...@ehofman.com]
> > Sent: 29 October 2009 17:07
> > To: FlightGear developers discussions
> > Subject: Re: [Flightgear-devel] New Sound system committed
> >
> > Ron Jensen wrote:
> > > Hi Erik,
> > >
> > > Sound seems to work O.K. today for me.  Except when I tune atis I get:
> > > voice synth: word '(many lines of stuff...)' not found
> > > source and listener distance greater than 20km!
> > > source and listener distance greater than 20km!
> > >
> > > And no ATIS sound...  I assume its supposed to give sound even if all
> > > the samples aren't found?
> >
> > As far as I know it should indeed.
> > Here is the status update of the code:
> >
> > * positioning: needs fixing
> > * orientation and sound direction: should be correct.
> > * velocity vector (and hence Doppler): should be correct.
> >
> > But let me tell you; this evening I'll calibrate that the
> > sound-not-playing bug is finally fixed.
> >
> > Erik
> >
> >
> --
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Re: [Flightgear-devel] New Sound system committed

[Alan Teeder]

It compiles and sounds are back! That was quick.

Well done

Alan

> -Original Message-
> From: Erik Hofman [mailto:e...@ehofman.com]
> Sent: 29 October 2009 17:07
> To: FlightGear developers discussions
> Subject: Re: [Flightgear-devel] New Sound system committed
> 
> Ron Jensen wrote:
> > Hi Erik,
> >
> > Sound seems to work O.K. today for me.  Except when I tune atis I get:
> > voice synth: word '(many lines of stuff...)' not found
> > source and listener distance greater than 20km!
> > source and listener distance greater than 20km!
> >
> > And no ATIS sound...  I assume its supposed to give sound even if all
> > the samples aren't found?
> 
> As far as I know it should indeed.
> Here is the status update of the code:
> 
> * positioning: needs fixing
> * orientation and sound direction: should be correct.
> * velocity vector (and hence Doppler): should be correct.
> 
> But let me tell you; this evening I'll calibrate that the
> sound-not-playing bug is finally fixed.
> 
> Erik
> 
> --
> 
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Re: [Flightgear-devel] New Sound system committed

[Erik Hofman]

Ron Jensen wrote:
> Hi Erik,
> 
> Sound seems to work O.K. today for me.  Except when I tune atis I get:
> voice synth: word '(many lines of stuff...)' not found
> source and listener distance greater than 20km!
> source and listener distance greater than 20km!
> 
> And no ATIS sound...  I assume its supposed to give sound even if all
> the samples aren't found?

As far as I know it should indeed.
Here is the status update of the code:

* positioning: needs fixing
* orientation and sound direction: should be correct.
* velocity vector (and hence Doppler): should be correct.

But let me tell you; this evening I'll calibrate that the 
sound-not-playing bug is finally fixed.

Erik

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Re: [Flightgear-devel] New Sound system committed

[Erik Hofman]

Alan Teeder wrote:
> With VC++ 2008 Express  - no engine sound yesterday
> 
> Today:-
> 
> -- Build started: Project: SimGear, Configuration: Release Win32 --
> Compiling...
> sample_group.cxx
> ..\..\simgear\sound\sample_group.cxx(387) : error C2664: 'isNaN' : cannot
> convert parameter 1 from 'SGVec3d' to 'float *'

Ok, I've fixed that now.

Erik

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Re: [Flightgear-devel] New Sound system committed

[Alan Teeder]

With VC++ 2008 Express  - no engine sound yesterday

Today:-

-- Build started: Project: SimGear, Configuration: Release Win32 --
Compiling...
sample_group.cxx
..\..\simgear\sound\sample_group.cxx(387) : error C2664: 'isNaN' : cannot
convert parameter 1 from 'SGVec3d' to 'float *'
No user-defined-conversion operator available that can perform this
conversion, or the operator cannot be called
..\..\simgear\sound\sample_group.cxx(388) : error C2664: 'isNaN' : cannot
convert parameter 1 from 'SGVec3f' to 'float *'
No user-defined-conversion operator available that can perform this
conversion, or the operator cannot be called
..\..\simgear\sound\sample_group.cxx(389) : error C2664: 'isNaN' : cannot
convert parameter 1 from 'SGVec3f' to 'float *'
No user-defined-conversion operator available that can perform this
conversion, or the operator cannot be called
Build log was saved at
"file://d:\fg\SimGear\projects\VC90\Win32\Release\BuildLog.htm"
SimGear - 3 error(s), 0 warning(s)


Sorry 

Alan



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Re: [Flightgear-devel] New Sound system committed

[Ron Jensen]

On Thu, 2009-10-29 at 14:36 +0100, Erik Hofman wrote:
> Scott Hamilton wrote:
> > On Thu, 2009-10-29 at 13:57 +0100, Erik Hofman wrote:
> > 
> > Hi ya Erik,
> > 
> > 
> >   I just tried out the test3, no sound what so ever...
> 
> I've committed the current state of my local code to see if it fixes 
> anything.
> 
> Erik

Hi Erik,

Sound seems to work O.K. today for me.  Except when I tune atis I get:
voice synth: word '(many lines of stuff...)' not found
source and listener distance greater than 20km!
source and listener distance greater than 20km!

And no ATIS sound...  I assume its supposed to give sound even if all
the samples aren't found?


Ron



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Re: [Flightgear-devel] New Sound system committed

[Alasdair Campbell]

On Thu, 2009-10-29 at 09:45 -0600, dave perry wrote:
> Erik Hofman wrote:
> > Scott Hamilton wrote:
> >   
> >> On Thu, 2009-10-29 at 13:57 +0100, Erik Hofman wrote:
> >>
> >> Hi ya Erik,
> >>
> >>
> >>   I just tried out the test3, no sound what so ever...
> >> 
> >
> > I've committed the current state of my local code to see if it fixes 
> > anything.
> >
> > Erik
> >
> >
> >   
> Hi Erik,
> Updated both my core2 duo (64 bit FC10) and my Athlon XP 3200+ (32 bit 
> FC10) both running FC10 openal and freealut distribution rpms.  ATC and 
> aircraft sounds are now working on both systems.  Neither had aircraft 
> sounds before this update. Thanks for all your work!
> Dave P.
> 
> 
All sounds seem good here too. Congratulations.
My only concern is that the engine sound and the wind sound are so loud
that they drown outsounds like flaps and atis. Any suggestion where I
can find a solution?
regards,
Alasdair


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Re: [Flightgear-devel] New Sound system committed

[dave perry]

Erik Hofman wrote:
> Scott Hamilton wrote:
>   
>> On Thu, 2009-10-29 at 13:57 +0100, Erik Hofman wrote:
>>
>> Hi ya Erik,
>>
>>
>>   I just tried out the test3, no sound what so ever...
>> 
>
> I've committed the current state of my local code to see if it fixes 
> anything.
>
> Erik
>
>
>   
Hi Erik,
Updated both my core2 duo (64 bit FC10) and my Athlon XP 3200+ (32 bit 
FC10) both running FC10 openal and freealut distribution rpms.  ATC and 
aircraft sounds are now working on both systems.  Neither had aircraft 
sounds before this update. Thanks for all your work!
Dave P.


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[Flightgear-devel] New MPServer --> mpserver10.flightgear.org

[Alexis Bory - xiii]

Hi all,

There is a new mpserver, mpserver10.flightgear.org.
This one is located in France - Montpellier 34.

Thanks to all mpserver-maintainers for replaying to it.

Alexis




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[Flightgear-devel] t-shirt give away

[Curtis Olson]

Over on the flightgear forums we are organizing a t-shirt give away
contest.  We are doing this on the forums because we have the ability to
create polls and let people vote there.

http://flightgear.org/forums/viewtopic.php?f=10&t=6252

The way this works is we took nominations for names of notable recent
contributors to the project.  We ended up with about 50 names in 5 minutes
and then discovered that our poll software has a maximum of 10 options.  So
what you will see is 10 deserving names, but only 10 of the 100's or 1000's
that could be on the list.  Fear not!  I hope to make this a monthly event,
and I hope that everyone keeps in mind that the whole purpose of this is to
have fun and not get too bogged down with some of the details that we could
get bogged down in.

Torsten's wife designed the t-shirt graphics (with some valuable input from
Torsten and I.)  You can see the design here:

http://www.cafepress.com/fgfs

To help you see some of the finer points of the design: we have a simple
paper airplane that flies in, does a loop, and then is trailing off in a
classic phugoid manuever ... (you can just feel the geeky multi-level
intelligence oozing from this design!)  The flight path is actually source
code from the project (we have to distribute the source code right?) :-)
All of this is set against the words "TEAM FLIGHTGEAR" in big bold letters.
It is SO cool!!!

If you want to order something yourself, feel free.  I would like to point
out that I've set the price on all these items to be the minimum possible
that cafe press allows.  This means that you are seeing the base price of
these items and all that money goes to cafe press to produce and ship the
item ... there is no extra markup that comes back to anyone else at the end
of the month.  My goal is simply to make these items as accessible as I
can.  There are probably cheaper ways to do t-shirts, but cafe press doesn't
require me to print up 100 in advance and ship them myself, and their
quality is pretty good; don't expect these to fade out on the first wash;
they should last for a good while.

So please head over to the FlightGear forums and vote for your favorite
developer.  It's wide open still ... only two votes separate 1st and last
place right now!

Go TEAM!

Curt.
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Re: [Flightgear-devel] New Sound system committed

[Erik Hofman]

Erik Hofman wrote:
> Scott Hamilton wrote:
>> On Thu, 2009-10-29 at 13:57 +0100, Erik Hofman wrote:
>>
>> Hi ya Erik,
>>
>>
>>   I just tried out the test3, no sound what so ever...
>>
>> SimGear/source/simgear/sound> ./openal_test3
>> default position and orientation
>> NaN in source position
>> NaN in source orientation
>> playing sample
>> source at lat,lon = (10,-10), listener at (0.999,-0.999)
>> NaN in source position
>> NaN in source orientation
> 
> Why, why! do others get this while I don't!??

Ok I removed a whole bunch of options from the CFLAGS line which was:
-march=athlon -msse3 -mfpmath=sse -pipe -fomit-frame-pointer 
-falign-jumps=16 -falign-loops=16 -falign-functions=64 -mno-push-args 
-maccumulate-outgoing-args

it's now: -O3 -Wall -Werror=format-security -D_REENTRANT

And now I get the division by zero in orientation that Csaba described. 
It's fixed locally but I till don't get the NaN's in the position code 
that Scott describes.

Erik

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Re: [Flightgear-devel] New Sound system committed

[Erik Hofman]

Scott Hamilton wrote:
> On Thu, 2009-10-29 at 13:57 +0100, Erik Hofman wrote:
> 
> Hi ya Erik,
> 
> 
>   I just tried out the test3, no sound what so ever...

I've committed the current state of my local code to see if it fixes 
anything.

Erik

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Re: [Flightgear-devel] New Sound system committed

[Erik Hofman]

Scott Hamilton wrote:
> On Thu, 2009-10-29 at 13:57 +0100, Erik Hofman wrote:
> 
> Hi ya Erik,
> 
> 
>   I just tried out the test3, no sound what so ever...
> 
> SimGear/source/simgear/sound> ./openal_test3
> default position and orientation
> NaN in source position
> NaN in source orientation
> playing sample
> source at lat,lon = (10,-10), listener at (0.999,-0.999)
> NaN in source position
> NaN in source orientation

Why, why! do others get this while I don't!??

Erik

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Re: [Flightgear-devel] New Sound system committed

[Scott Hamilton]

On Thu, 2009-10-29 at 13:57 +0100, Erik Hofman wrote:

Hi ya Erik,


  I just tried out the test3, no sound what so ever...

SimGear/source/simgear/sound> ./openal_test3
default position and orientation
NaN in source position
NaN in source orientation
playing sample
source at lat,lon = (10,-10), listener at (0.999,-0.999)
NaN in source position
NaN in source orientation
playing sample
SimGear/source/simgear/sound>

but test1 does work!!! 
SimGear/source/simgear/sound> ./openal_test1
Buffer created ok!
AL lib: ALc.c:1640: exit(): closing 1 Device
AL lib: ALc.c:1569: alcCloseDevice(): destroying 1 Context
AL lib: ALc.c:1258: alcDestroyContext(): deleting 1 Source(s)
AL lib: ALc.c:1578: alcCloseDevice(): deleting 2 Buffer(s)
SimGear/source/simgear/sound>

test2 does not produce any sound :(
SimGear/source/simgear/sound> ./openal_test2
NaN in source
position  
NaN in source
orientation   
playing
sample1 
NaN in source
position  
NaN in source
orientation   
NaN in source
position  
NaN in source orientation
playing sample2
NaN in source position
NaN in source orientation
NaN in source position
NaN in source orientation
playing sample3
NaN in source position
NaN in source orientation
NaN in source position
NaN in source orientation
playing sample4
NaN in source position
NaN in source orientation
NaN in source position
NaN in source orientation
playing sample5
NaN in source position
NaN in source orientation
NaN in source position
NaN in source orientation
playing sample6
NaN in source position
NaN in source orientation


Hope that helps
   S.




> 
> Not really I updated the initialization of the sound sample position to 
> prevent NaN's (by initializing it to SGGeod::fromDeg(0,0) but that 
> places it far, far away from the sound manager that was still at (0,0) 
> in OpenAL location.
> 
> I've updated that code in SimGear and added a third test program that 
> tests (two) different lat/lon positions.
> 
> Erik
> 
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Re: [Flightgear-devel] New Sound system committed

[Erik Hofman]

Scott Hamilton wrote:
> On Thu, 2009-10-29 at 02:26 +0100, Csaba Halász wrote:
> 
>  > Hi Erik!
>  >
>  > If a sound sample keeps its default orientation of all zeroes then in
>  > SGSoundSample::update_absolute_position the sc2body*q will be also
>  > null and cause a division by zero in SGQuat::backTransform.

Hmm, an orientation vector of (0,0,0) means omnidirectional sound and is 
valid for OpenAL. The strange part is that it does return (0,0,0) for me 
every time..

> Perhaps this explains why the most recent cvs update produces;

Not really I updated the initialization of the sound sample position to 
prevent NaN's (by initializing it to SGGeod::fromDeg(0,0) but that 
places it far, far away from the sound manager that was still at (0,0) 
in OpenAL location.

I've updated that code in SimGear and added a third test program that 
tests (two) different lat/lon positions.

Erik

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Re: [Flightgear-devel] New Sound system committed

[Scott Hamilton]

On Thu, 2009-10-29 at 02:26 +0100, Csaba Halász wrote:

> Hi Erik!
> 
> If a sound sample keeps its default orientation of all zeroes then in
> SGSoundSample::update_absolute_position the sc2body*q will be also
> null and cause a division by zero in SGQuat::backTransform.
> 



Perhaps this explains why the most recent cvs update produces;

SimGear/source/simgear/sound> ./openal_test2
NaN in source
position  
NaN in source
orientation   
playing
sample1 
NaN in source
position  
NaN in source
orientation   
NaN in source
position  
NaN in source
orientation   
playing
sample2 
NaN in source
position  
NaN in source
orientation   
NaN in source
position  
NaN in source
orientation   
playing
sample3 
NaN in source
position  
NaN in source
orientation   
NaN in source
position  
NaN in source
orientation   
playing
sample4 
NaN in source position
NaN in source orientation
NaN in source position
NaN in source orientation
playing sample5
NaN in source position
NaN in source orientation
NaN in source position
NaN in source orientation
playing sample6
NaN in source position
NaN in source orientation

   and the sounds I had from the code of last week are still gone, but
what I find difficult is there isn't any error messages
   (except the "source and listener distance greater than 50km!") which
doesn't help very much with any troubleshooting, if there
   was something complaining somewhere it would make it easier to find
out what is happening/not happening...
   
   
   S.

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[Flightgear-devel] FYI: kernel patch for X52 joystick/throttle

[John Denker]

The Saitek X52 Flight Control System (joystick, throttle, etc.)
is rather nice and widely used, except that it has been unusable 
with all kernels from 2.6.28-15 to the present.

This is strictly a kernel bug, not a hardware problem or a plib
bug or a FGFS bug ... but it affects people in the FGFS community 
so I thought I would mention it here.

If you didn't know where to look, it might take you a long time
to find this bug ... but once found, it is easy to fix.

The patch is here:
  http://bugzilla.kernel.org/attachment.cgi?id=23054
with some discussion here:
  http://bugzilla.kernel.org/show_bug.cgi?id=14049

This is an "out of the frying pan and into the fire" situation.
In kernel 2.6.28.14 and before, Wacom tablets were incorrectly 
identified as being joysticks.  The heuristic that "fixed" that 
problem broke the X52.

Maybe eventually somebody will come up with a clean, non-heuristic 
bit of code that will reliably distinguish tablets from joysticks 
... but in the meantime, if you have an X52 and don't have a tablet, 
you want to apply the patch mentioned above.


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