Re: [Flightgear-devel] First results of terrain texture generator

2007-09-24 Thread Frederic Bouvier
Quoting Vadym Kukhtin :

 Sorry didnt understand if it will use existing bitmap textures, but makes
 polygins edges smooth, and add texures of shore;
 or bitmap of texture will be generates itself.


 In august I'm did some work in same direction.
 For begin to play with, I'm
 creativly borrow (stoled) an idea and pictures from msfs' GroundEnvironment.
 For each type of area there is 7-9 bitmaps,
 which can connect without border.
 In materials.xml I defined filenames
 and x-ysizes, and now my world FG look like this:

 http://valeo.io.com.ua/album60782

 But for now the main feature dont work - all polygon with area fill with one
 bitmap, and another polygon with same area filled complitely with another
 bitmap from pack. It is can be view at screenshot #2 and #7
 If somebody will make change in code, that textures for filling poligon will
 be taken randomly from the list, then I continue my work to make
 licence-clean bitmaps.

 sorry for my English

Do you mean you experimented with aperiodic texture mapping ?
like the technique described in this paper :
http://www.dgp.toronto.edu/people/stam/reality/Research/pdf/R046.pdf

-Fred

-- 
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http://frfoto.free.fr  Photo gallery - album photo
http://www.fotolia.fr/p/2278/partner/2278  Other photo gallery
http://fgsd.sourceforge.net/   FlightGear Scenery Designer

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Re: [Flightgear-devel] First results of terrain texture generator

2007-09-24 Thread Vadym Kukhtin
2007/9/24, Frederic Bouvier [EMAIL PROTECTED]:

 Do you mean you experimented with aperiodic texture mapping ?
 like the technique described in this paper :
 http://www.dgp.toronto.edu/people/stam/reality/Research/pdf/R046.pdf


Yes, it is that I want to do.
But I think for FG no need 16 tiles and 16 rules. If we will have to know,
that every tile can be tiled around with 8 another
tiles, it will be enough. Even if same tile will repeat not so often, nobody
notice it.
No need to add a lot of computation, better we should use a hi-res bitmaps.

Thanks for doc.

-- 
---
WBR, Vadym.
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[Flightgear-devel] Concorde un-usable for me

2007-09-24 Thread Forums Virgin Net

Hi,
I recently upgraded to 2 GB of memory, and also a much better Nvidia AGP 
Gigabyte 7600 GS card the old version of flightgear 0.9.10 flies now sometimes 
I get 150fps but the new OSG and concorde's latest updates have left it almost 
un-usable for me, at start up it often starts on it's side other times is 
spends 90% of the time at 0 fps, before I have even taxied or flown anywhere :(

I was hoping to include the new concorde in part 3 of my movies but this does 
not look realistic now as their is no overhead at all for video capture.

Aerotro



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[Flightgear-devel] Thanks Robert Black and Robin van Steenbergen - plus extra notes on concorde problems for author

2007-09-24 Thread Forums Virgin Net
Dear Robin  Simstick, Et all
   Thanks for those tips about the music 
backing I have emailed Justin R. Durban from Edgen Productions, just waiting a 
reply now.
---

About concorde, it works a little better in plib but is still unstable the VS 
(Vertical Speed) problem is still their, I am getting lots of stutter bad 
stability with fps especially on start up. Panning around does help but video 
captures are a waste of time as their are just to many pauses, and jitter.

I dont know what is going on with it. Can someone point me to a newer win32 
build of OSG and PLIB please as maybe it is something to do with the builds I 
am using my OSG binary is about a month old now 15/Aug/2007 and my plib 2 
months old.

I cannot progress with the movie while things are unstable like this I need 
stability if I am to get decent video captures, any help is much appreciated 
thanks.

Aerotro


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Re: [Flightgear-devel] Concorde un-usable for me

2007-09-24 Thread Frederic Bouvier
Selon Forums Virgin Net :


 Hi,
 I recently upgraded to 2 GB of memory, and also a much better Nvidia AGP
 Gigabyte 7600 GS card the old version of flightgear 0.9.10 flies now
 sometimes I get 150fps but the new OSG and concorde's latest updates have
 left it almost un-usable for me, at start up it often starts on it's side
 other times is spends 90% of the time at 0 fps, before I have even taxied or
 flown anywhere :(

 I was hoping to include the new concorde in part 3 of my movies but this does
 not look realistic now as their is no overhead at all for video capture.

You should try to limit your frame rate to a reasonable value, either by
configuring the Sync to Vblank feature of your graphic driver, or by enabling
the frame rate throttle inside FG ( --prop:/sim/frame-rate-throttle-hz=75 for
example )

-Fred

-- 
Frédéric Bouvier
http://frfoto.free.fr  Photo gallery - album photo
http://www.fotolia.fr/p/2278/partner/2278  Other photo gallery
http://fgsd.sourceforge.net/   FlightGear Scenery Designer

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Re: [Flightgear-devel] Thanks Robert Black and Robin van Steenbergen - plus extra notes on concorde problems for author

2007-09-24 Thread Robin van Steenbergen
Forums Virgin Net schreef:
 Dear Robin  Simstick, Et all
Thanks for those tips about the 
 music backing I have emailed Justin R. Durban from Edgen Productions, 
 just waiting a reply now.
 --- 3
  
 About concorde, it works a little better in plib but is still unstable 
 the VS (Vertical Speed) problem is still their, I am getting lots of 
 stutter bad stability with fps especially on start up. Panning around 
 does help but video captures are a waste of time as their are just to 
 many pauses, and jitter.
  
 I dont know what is going on with it. Can someone point me to a newer 
 win32 build of OSG and PLIB please as maybe it is something to do with 
 the builds I am using my OSG binary is about a month old now 
 15/Aug/2007 and my plib 2 months old.
  
 I cannot progress with the movie while things are unstable like this I 
 need stability if I am to get decent video captures, any help is much 
 appreciated thanks.
  
 Aerotro

You don't actually need to *fly* an aircraft to generate images. In an 
application like MATLAB, or possibly Lightwave or 3DS it would be 
possible to generate a parametric flight path (just a series of 
coordinates). FG will just follow those coordinates in a slaved mode, 
reducing it to a mere 3D real-time rendering engine. You won't be 
actually flying the aircraft, but the viewers won't see a difference as 
the A/C would have been flying on autopilot anyway.

Regarding video caps, what are you using? Fraps is a good application 
which can capture any rendered screen in HD resolution, the cheap 
hardware-level but fool-proof alternative is using a TV capture card 
with the rendered displays on a VGA card's TV-out. The advantage of this 
is that the capture won't neccesarily go wrong if there's something 
wrong on the box running FlightGear, the downside is that you're stuck 
on PAL resolution (or NTSC, whatever you want these days. I'd recommend 
PAL ;))

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Re: [Flightgear-devel] Concorde un-usable for me

2007-09-24 Thread Robin van Steenbergen
Frederic Bouvier schreef:
 You should try to limit your frame rate to a reasonable value, either by
 configuring the Sync to Vblank feature of your graphic driver, or by 
 enabling
 the frame rate throttle inside FG ( --prop:/sim/frame-rate-throttle-hz=75 for
 example )

 -Fred

   
When doing video, it's no use doing more FPS than the video can record. 
That's 30fps for NTSC and 25fps for PAL. (24fps for the celluloid fans.) 
Limiting the FPS has advantages in more CPU time and possible 
elimination of instabilities in some control logic (like the Concorde's 
autopilot). It might be calculating its control laws too fast messing up 
all the parameters. (Yes, I have had digital control engineering classes 
in my University EE course, I might even use FG for my Bachelor's 
degree's presentation! :-))


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