[osg-users] 回复: Re: 回复: Re: blink q uestion!

2008-10-27 Thread YangXiao
Thanks a lot ,I already  do these in a update callback. But blink continue 
exist.
  This is my code:
  ResultCode ExpCntl::startPaint(HINSTANCE hinstance)
{
 ResultCode rslt = SUCCESS;
 DWORD paintThreadID;
 HANDLE paintThreadHandle;
 paintThreadHandle = CreateThread(NULL, 0, PaintThread, hinstance, NULL, 
paintThreadID);
 CloseHandle(paintThreadHandle);
 //rslt = PaintThread(hinstance);
 SleepEx(100, false);
 return rslt;
}
   
   
  DWORD WINAPI PaintThread(LPVOID lpData)
{
 
 g_var.threadcount ++;
 HINSTANCE hInstPaint  = *static_castHINSTANCE*(lpData);
   WNDCLASS wndClassPaint;
 // register back ground window class
 wndClassPaint.style  = 0;
 wndClassPaint.lpfnWndProc= PaintWinProc;
 wndClassPaint.cbClsExtra = 0;
 wndClassPaint.cbWndExtra = 0;
 wndClassPaint.hInstance  = hInstPaint;
 wndClassPaint.hIcon  = NULL;   // no icon
 wndClassPaint.hCursor= NULL;   // no cursor
 wndClassPaint.hbrBackground  = (HBRUSH)GetStockObject(WHITE_BRUSH); // black 
background
 wndClassPaint.lpszMenuName   = NULL;
 wndClassPaint.lpszClassName  = Ldpesbackground;
   //
//  CoInitialize(NULL);
//  IMyButtonPtr temp;
//  CoCreateInstance(__uuidof(MyButton), NULL, CLSCTX_ALL, __uuidof(IMyButton),
//   (void**)temp);
//  CoCreateInstance(__uuidof(ControlManager), NULL, CLSCTX_ALL, 
//   __uuidof(IControlManager), (void**)pControlManager);
 
 if (!RegisterClass(wndClassPaint))
 { // fail to register the window class
  //goto over;
  g_var.threadcount --;
  //GdiplusShutdown(gdiplusToken);
  //CoUninitialize();
  return 0;
 }
   // create back ground window
 HWND hWndPaint;
 hWndPaint = CreateWindow(
  Ldpesbackground,  // window class name
  L,// window caption
  0, // window style
  0, // initial x position
  0, // initial y position
  CW_USEDEFAULT,  // initial x size
  CW_USEDEFAULT,  // initial y size
  NULL,// parent window handle
  NULL,// window menu handle
  hInstPaint,   // program instance handle
  NULL);// creation parameters
 if (!hWndPaint)
 { // fail to create window
  //goto over;
  g_var.threadcount --;
  //GdiplusShutdown(gdiplusToken);
  CoUninitialize();
  return 0;
   }
   // hide the caption of back ground window
 DWORD dwStyle = GetWindowLong(hWndPaint, GWL_STYLE);  
 dwStyle = ~(WS_CAPTION); 
 SetWindowLong(hWndPaint, GWL_STYLE, dwStyle); 
   // show the back ground window
 ShowWindow(hWndPaint, SW_MAXIMIZE);
 UpdateWindow(hWndPaint);
 //ShowCursor(false);
 这段是加载hook动态库并安装钩子
 typedef BOOL (*InstallHook)();
 typedef BOOL (*UnHook)(); 
   InstallHook ProcInstallHook = NULL;
 UnHook ProcUnHook = NULL;
 HINSTANCE hInstLib = NULL;
 hInstLib = LoadLibraryA(hook.dll);
 if (hInstLib == NULL)
 {
  MessageBoxA(NULL, 没有打开hook.dll, 提醒, MB_OK);
  return 0;
 }
 ProcInstallHook = (InstallHook) GetProcAddress(hInstLib,InstallHook);
 if (ProcInstallHook != NULL)
 {
  ProcInstallHook();
 } 
 加载hook结束
 /*GdiplusStartupInput gdiplusStartupInput;
 ULONG_PTR   gdiplusToken;
 GdiplusStartup(gdiplusToken, gdiplusStartupInput, NULL);*/
   
 osgViewer::Viewer viewer;   //场景
   // Local Variable to hold window size data
RECT rect;

// Get the current window size
::GetWindowRect(hWndPaint, rect);
 
//全局变量来保存viewer窗口的大小属性
 {
  _osgviewer_rect().bottom = rect.bottom ;
  _osgviewer_rect().left   = rect.left; 
  _osgviewer_rect().right  = rect.right; 
  _osgviewer_rect().top= rect.top;
  _osgviewer_rect().viewer_background_color = osg::Vec4(0,0,0,1);
  _osgviewer_rect().clicked_editbox = NULL;
 }
  // Init the GraphicsContext Traits
osg::ref_ptrosg::GraphicsContext::Traits traits = new 
osg::GraphicsContext::Traits;
  // Init the Windata Variable that holds the handle for the Window to 
display OSG in.
osg::ref_ptrosg::Referenced windata = new 
osgViewer::GraphicsWindowWin32::WindowData(hWndPaint);
  // Setup the traits parameters
traits-x = 0;
traits-y = 0;
traits-width = rect.right - rect.left;
traits-height = rect.bottom - rect.top;
traits-windowDecoration = false;
traits-doubleBuffer = true;
traits-sharedContext = 0;
traits-setInheritedWindowPixelFormat = true;
traits-inheritedWindowData = windata;
  // Create the Graphics Context
osg::GraphicsContext* gc = 
osg::GraphicsContext::createGraphicsContext(traits.get());
 
// Assign Graphics Context to the Camera
viewer.getCamera()-setGraphicsContext(gc);
  // Set the viewport for the Camera
 
 viewer.getCamera()-setClearColor(_osgviewer_rect().viewer_background_color);
  viewer.getCamera()-setViewport(new osg::Viewport(traits-x, traits-y, 
traits-width, traits-height));
  
 //osg::ref_ptrosg::Group  root = new osg::Group;
   osg::ref_ptrosg::Switch  root =  new osg::Switch;
   //root-addChild(new osg::Node());
 viewer.setSceneData(root.get());//设置场景根节点
   
 
 关闭自动计算远近裁减面
 

Re: [osg-users] VPB bug or faulty data?

2008-10-27 Thread Ralf Stokholm
Hi Alejandro
Im not 100% here, but I think you still need to specify some sort of
projection basis, even plain lat lon uses some defenition of the geoid like
WGS84 og similar.

Natrally it could be a problem with you GTiff file.

What version of VPB OSG are you using?

Brgs.

Ralf

2008/10/27 Alejandro Aguilar Sierra [EMAIL PROTECTED]

 Hi,

 Actually the data has no projections, it is in plain
 longitude/latitude coordinates. Which is the recomended projection for
 data about 1 or two degrees long so I can have it in kilometers?

 Regards,

 -- A.

 On Sun, Oct 26, 2008 at 2:04 AM, Ralf Stokholm [EMAIL PROTECTED]
 wrote:
  Hi Alejandro
 
  It seams you are missing projection information in the createt geotiff
 file.
 
  VPB needs some sort of projection system information in the input or you
  should specify the projection in the commandline for VPB
 
  It will be faster if you project your source data using ie gdalwarp, adal
  translate can also encode the projection data if its missing and you know
  what it should be.
 
  Brgs.
 
  Ralf Stokholm
 
  2008/10/26 Alejandro Aguilar Sierra [EMAIL PROTECTED]
 
  Hello:
 
  I got DEM data from INEGI (Mexican Geographic Institute) and convert
  it to Geo Tiff.
 
  gdal_translate -of GTiff -co TILED=YES
  MDE-n20s19e097o099.bil volcanes.tif
  gdaladdo -r average volcanes.tif 2 4 8 16 32
 
  gdalinfo volcanes.tif
  Warning 1: TIFFReadDirectory:volcanes.tif: Wrong StripByteCounts
  field, ignoring and calculating from imagelength
  Driver: GTiff/GeoTIFF
  Files: volcanes.tif
  Size is 7200, 3600
  Coordinate System is `'
  Origin = (-99.000,20.000)
  Pixel Size = (0.0002778,-0.0002778)
  Image Structure Metadata:
   INTERLEAVE=BAND
  Corner Coordinates:
  Upper Left  ( -99.000,  20.000)
  Lower Left  ( -99.000,  19.000)
  Upper Right ( -97.000,  20.000)
  Lower Right ( -97.000,  19.000)
  Center  ( -98.000,  19.500)
  Band 1 Block=256x256 Type=UInt16, ColorInterp=Gray
   NoData Value=0
   Overviews: 3600x1800, 1800x900, 900x450, 450x225, 225x113
  Warning 1: TIFFReadDirectory:volcanes.tif: Wrong StripByteCounts
  field, ignoring and calculating from imagelength
 
 
  If I try to create the terrain database this way I get only a line
  osgdem -d volcanes.tif -l 8  -v 1.0 -o volcanes.ive
 
  so I have to give approximate pixel size with xx and yy and it
 apparently
  works.
  osgdem --xx 33 --yy 33 -d volcanes.tif -l 8 -v 1.0 -o volcanes.ive
 
  Is there not enough information in the geotiff file? or this is a bug?
 
  Regards,
 
  -- A.
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Re: [osg-users] VPB bug or faulty data?

2008-10-27 Thread Ümit Uzun
Hi Alejandro,

VPB is only understand well referenced WGS84 formatted data. So I advice you
to use referenced images to create your terrain, if you are not familiar
with reference data manipulation on images you should download prepared
referenced data from http://seamless.usgs.gov/index.php or
http://geoengine.nga.mil/geospatial/SW_TOOLS/NIMAMUSE/webinter/rast_roam.htmlYou
can find lots of web site to download these kind of data.

Best Regards.

Umit Uzun

2008/10/27 Ralf Stokholm [EMAIL PROTECTED]

 Hi Alejandro
 Im not 100% here, but I think you still need to specify some sort of
 projection basis, even plain lat lon uses some defenition of the geoid like
 WGS84 og similar.

 Natrally it could be a problem with you GTiff file.

 What version of VPB OSG are you using?

 Brgs.

 Ralf

 2008/10/27 Alejandro Aguilar Sierra [EMAIL PROTECTED]

 Hi,

 Actually the data has no projections, it is in plain
 longitude/latitude coordinates. Which is the recomended projection for
 data about 1 or two degrees long so I can have it in kilometers?

 Regards,

 -- A.

 On Sun, Oct 26, 2008 at 2:04 AM, Ralf Stokholm [EMAIL PROTECTED]
 wrote:
  Hi Alejandro
 
  It seams you are missing projection information in the createt geotiff
 file.
 
  VPB needs some sort of projection system information in the input or you
  should specify the projection in the commandline for VPB
 
  It will be faster if you project your source data using ie gdalwarp,
 adal
  translate can also encode the projection data if its missing and you
 know
  what it should be.
 
  Brgs.
 
  Ralf Stokholm
 
  2008/10/26 Alejandro Aguilar Sierra [EMAIL PROTECTED]
 
  Hello:
 
  I got DEM data from INEGI (Mexican Geographic Institute) and convert
  it to Geo Tiff.
 
  gdal_translate -of GTiff -co TILED=YES
  MDE-n20s19e097o099.bil volcanes.tif
  gdaladdo -r average volcanes.tif 2 4 8 16 32
 
  gdalinfo volcanes.tif
  Warning 1: TIFFReadDirectory:volcanes.tif: Wrong StripByteCounts
  field, ignoring and calculating from imagelength
  Driver: GTiff/GeoTIFF
  Files: volcanes.tif
  Size is 7200, 3600
  Coordinate System is `'
  Origin = (-99.000,20.000)
  Pixel Size = (0.0002778,-0.0002778)
  Image Structure Metadata:
   INTERLEAVE=BAND
  Corner Coordinates:
  Upper Left  ( -99.000,  20.000)
  Lower Left  ( -99.000,  19.000)
  Upper Right ( -97.000,  20.000)
  Lower Right ( -97.000,  19.000)
  Center  ( -98.000,  19.500)
  Band 1 Block=256x256 Type=UInt16, ColorInterp=Gray
   NoData Value=0
   Overviews: 3600x1800, 1800x900, 900x450, 450x225, 225x113
  Warning 1: TIFFReadDirectory:volcanes.tif: Wrong StripByteCounts
  field, ignoring and calculating from imagelength
 
 
  If I try to create the terrain database this way I get only a line
  osgdem -d volcanes.tif -l 8  -v 1.0 -o volcanes.ive
 
  so I have to give approximate pixel size with xx and yy and it
 apparently
  works.
  osgdem --xx 33 --yy 33 -d volcanes.tif -l 8 -v 1.0 -o volcanes.ive
 
  Is there not enough information in the geotiff file? or this is a bug?
 
  Regards,
 
  -- A.
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Re: [osg-users] 回复: Re: 回复: Re: blink qu estion!

2008-10-27 Thread Wang Rui
Hi, YangXiao

What have you done to your widget handle (hWndPaint) in rootCallback? Please
do not update the handle by yourself.
Also plz don't send such long code here. It brings trouble to others ...

Wang Rui
2008/10/27 YangXiao [EMAIL PROTECTED]

 Thanks a lot ,I already  do these in a update callback. But blink continue
 exist.
 This is my code:

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Re: [osg-users] VPB bug or faulty data?

2008-10-27 Thread Robert Osfield
Hi Umit,

On Mon, Oct 27, 2008 at 7:36 AM, Ümit Uzun [EMAIL PROTECTED] wrote:
 VPB is only understand well referenced WGS84 formatted data.

This is not correct, VPB can handle a wide range of projections,
including no projections if your manually provide the projections.
However, I would very strongly recommend that you provide data with
proper projections for them, it makes the whole build process far far
easier and reliable.

Robert.
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Re: [osg-users] VPB bug or faulty data?

2008-10-27 Thread Ümit Uzun
Hi Robert,

Thanks for clarification. But I remember that, VPB can manipulate only WGS84
referenced data. But it may be valid for only BlueMarble viewer. Sorry for
wrong comment :)

Best Regards.

Umit Uzun

2008/10/27 Robert Osfield [EMAIL PROTECTED]

 Hi Umit,

 On Mon, Oct 27, 2008 at 7:36 AM, Ümit Uzun [EMAIL PROTECTED] wrote:
  VPB is only understand well referenced WGS84 formatted data.

 This is not correct, VPB can handle a wide range of projections,
 including no projections if your manually provide the projections.
 However, I would very strongly recommend that you provide data with
 proper projections for them, it makes the whole build process far far
 easier and reliable.

 Robert.
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Re: [osg-users] VPB bug or faulty data?

2008-10-27 Thread Robert Osfield
Hi Umit,

On Mon, Oct 27, 2008 at 9:25 AM, Ümit Uzun [EMAIL PROTECTED] wrote:
 Thanks for clarification. But I remember that, VPB can manipulate only WGS84
 referenced data. But it may be valid for only BlueMarble viewer. Sorry for
 wrong comment :)

When building geocentric databases VPB reprojects the data into WGS84
and then builds the data, if you are using vpbmaster then you'll need
to do this reprojection as a prior step to calling vpbmaster.  The
vpbcache utility can do this reprojection for you.  If you are just
using osgdem standalone then it can do the reprojection for you.

The key is that your source data should have at least a projection
that GDAL recognizes otherwise you end up having to build your own
projection.  GDAL has tools to allow you to do this.

Robert.
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Re: [osg-users] animtk release 0.0.9

2008-10-27 Thread John Vidar Larring

Hi Cedric,

I'm excited about the prospect of an LGPL'd osgAnimation. I tried 
checking out the animtk repository with mercurial, but no luck:


% hg clone http://hg.plopbyte.net/animtk
requesting all changes
adding changesets
abort: could not import module directory!
transaction abort!
rollback completed
Exit 255

Is this a client- server-, or permissions problem?

Best regards,
John

Cedric Pinson wrote:

Hi Robert,
Ok i changed the code to fit the osg coding style. if you want to look 
at it

http://hg.plopbyte.net/animtk/file/0acae4280750
or get the repo:
hg clone http://hg.plopbyte.net/animtk

Cheers,
Cedric



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[osg-users] I need to write an ive plugin.

2008-10-27 Thread Viggo Løvli

Hi,
 
I have written a new class which inherit from osg::Group.
I have written a plugin for the .osg file format, that works fine.
 
I need to write a plugin for the .ive file format.
 
My initial thought was to copy-paste the ive::LOD code and replace the actual 
read/write parts according to my needs.
I am compiling this code inside one of my own projects. I added includes to the 
ive/ReadWrite.h and ive/Group.h. The code compiles.
Linking results in errors on unresolved externals.
I could not find a library to link with, and I see that the header-files inside 
ive does not have export statements. So I think I have gone ahead doing this in 
a very wrong way.
 
Does anybody have an example or directions for me on how to do this?
 
I also wonder how the code written as an ive plugin gets called when 
reading/writing ive files. Do I need to register my class somewhere?
 
 
Regards,
Viggo
 
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Re: [osg-users] I need to write an ive plugin.

2008-10-27 Thread Robert Osfield
Hi Viggo,

I'm afraid the .ive format is not extensible, the only way to add to
it is to directly modify the sourceof the ive plugin.

Long term I want to introduce a binary .osg format that is extensible,
but I don't have the time available right now to tackle this.

Robert.

On Mon, Oct 27, 2008 at 10:17 AM, Viggo Løvli [EMAIL PROTECTED] wrote:
 Hi,

 I have written a new class which inherit from osg::Group.
 I have written a plugin for the .osg file format, that works fine.

 I need to write a plugin for the .ive file format.

 My initial thought was to copy-paste the ive::LOD code and replace the
 actual read/write parts according to my needs.
 I am compiling this code inside one of my own projects. I added includes to
 the ive/ReadWrite.h and ive/Group.h. The code compiles.
 Linking results in errors on unresolved externals.
 I could not find a library to link with, and I see that the header-files
 inside ive does not have export statements. So I think I have gone ahead
 doing this in a very wrong way.

 Does anybody have an example or directions for me on how to do this?

 I also wonder how the code written as an ive plugin gets called
 when reading/writing ive files. Do I need to register my class somewhere?


 Regards,
 Viggo


 
 Se bildegalleri på MSN Style. Kate Moss eller Sienna Miller: Hvilken
 kjendis-stil passer deg?
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Re: [osg-users] animtk release 0.0.9

2008-10-27 Thread Cedric Pinson

Hi John,

I guess it comes from the version of mercurial you are using.
I tried because of your post, and it works.
hg clone http://hg.plopbyte.net/animtk
destination directory: animtk
requesting all changes
adding changesets
adding manifests
adding file changes
added 323 changesets with 1620 changes to 465 files
updating working directory
163 files updated, 0 files merged, 0 files removed, 0 files unresolved
hg --version
Mercurial Distributed SCM (version 1.0.2)

Copyright (C) 2005-2008 Matt Mackall [EMAIL PROTECTED] and others
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


Maye you are using an old mercurial version, check your version

Cheers,
Cedric

John Vidar Larring wrote:

Hi Cedric,

I'm excited about the prospect of an LGPL'd osgAnimation. I tried 
checking out the animtk repository with mercurial, but no luck:


% hg clone http://hg.plopbyte.net/animtk
requesting all changes
adding changesets
abort: could not import module directory!
transaction abort!
rollback completed
Exit 255

Is this a client- server-, or permissions problem?

Best regards,
John

Cedric Pinson wrote:

Hi Robert,
Ok i changed the code to fit the osg coding style. if you want to 
look at it

http://hg.plopbyte.net/animtk/file/0acae4280750
or get the repo:
hg clone http://hg.plopbyte.net/animtk

Cheers,
Cedric





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Re: [osg-users] animtk release 0.0.9

2008-10-27 Thread Cedric Pinson

Hi Robert,

I guess i can use the same branch of Jeremy to start the integration. 
Most of the time I interact with Jeremy so using the same branche is 
good for me.

I will follow your suggestion for integration.

Cheers,
Cedric

Robert Osfield wrote:

Hi Cedric,

On Fri, Oct 24, 2008 at 6:52 PM, Cedric Pinson [EMAIL PROTECTED] wrote:
  

Ok i changed the code to fit the osg coding style. if you want to look at it
http://hg.plopbyte.net/animtk/file/0acae4280750



This looks far closer to the usual OSG style, so thanks for making the
change, it certainly makes things smoother to integrate.

On the trail integration front I was think that perhaps you could
maintain your own branch of the OSG this preps the code ready for a
straight merge.  Or slightly lighter weight solution would be to just
reuse Jeremy Moles's osgWidget branch for you both to prep stuff prior
to merge with svn/trunk.  If you are up for this then we could get
Jose to add your as a writer to the braches section of OSG wiki.

In this merge I'd suggest renaming osgATK to osgAnimation.  The
OSGANIMATION_EXPORT symbol will also be need for all your classes that
have implementations in the .cpp's, as per the rest of the OSG libs.
The license will also need to be changed, otherwise I won't be able to
merge it with svn/trunk as the osgAnimation library, and I'll just
have to wait for another such library with a compatible license to
developed.

Prior to any merge what we need is the community to start pitching in,
testing across platforms.  What would be great if people could port
apps based on osgCal to osgATK/osgAnimation to see how well the new
libs hold up feature and implementation wise.  This extra exposure
might put more work your way initially but it will mean that it shapes
up quicker and solves some of the real animation needs that existing
users already have.

Many thanks you for efforts,
Robert.


Robert.
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Re: [osg-users] Load animated model?

2008-10-27 Thread Tuan Do
This problem was solved in the past.
http://groups.google.com/group/osg-users/browse_thread/thread/b9725f6566bd92f3/700f0659ed89598e?lnk=gstq=animate+model#700f0659ed89598e
Please search the group before posting. Hĩ ;)
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Re: [osg-users] Call for feedback : AC3D loader behavior w.r.t texture repeat and clamping

2008-10-27 Thread Robert Osfield
Hi Melchior,


On Fri, Oct 24, 2008 at 8:36 PM, Melchior FRANZ
[EMAIL PROTECTED] wrote:
 * Robert Osfield -- Friday 24 October 2008:
 But it doesn't really say anything about the how the texture wrap
 modes map to this, if at all.

 I can't say that either, but the current situation is bad. Because
 'texrep 1 1' is default anyway (according to spec and reference
 implementation) AC3D itself doesn't even write it to its files! AC3D
 users who want the default do now have to manually(!) insert oodles
 of 'texrep 1 1' with an editor, only because OSG does no longer
 respect the documented default.

I have just checked in a change from Mathias Froehlich in that reverts
the ac3d plugin back to honouring the default texture repeat.

I have also asked John Cummings who instigated the texture clamping
changes to engage on this thread, hopefully he'll be able to explain
the source of his problem files and provide some examples so that
others can see if there is a possible solution for detecting when
texture clamping might be appropriate and detectable in reliable way.

Robert.
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Re: [osg-users] animtk release 0.0.9

2008-10-27 Thread John Vidar Larring

Thanks Cedric,

Instead of using the pre-built binary (version 0.9.4), I downloaded and 
compiled mercurial from source (version 1.0.2), and clone (a.k.a. 
checkout) worked like a charm. Hope this is helpful for other first-time 
mercurial / animtk users;)


Best regards,
John

Cedric Pinson wrote:

Hi John,

I guess it comes from the version of mercurial you are using.
I tried because of your post, and it works.
hg clone http://hg.plopbyte.net/animtk
destination directory: animtk
requesting all changes
adding changesets
adding manifests
adding file changes
added 323 changesets with 1620 changes to 465 files
updating working directory
163 files updated, 0 files merged, 0 files removed, 0 files unresolved
hg --version
Mercurial Distributed SCM (version 1.0.2)

Copyright (C) 2005-2008 Matt Mackall [EMAIL PROTECTED] and others
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


Maye you are using an old mercurial version, check your version

Cheers,
Cedric

John Vidar Larring wrote:

Hi Cedric,

I'm excited about the prospect of an LGPL'd osgAnimation. I tried 
checking out the animtk repository with mercurial, but no luck:


% hg clone http://hg.plopbyte.net/animtk
requesting all changes
adding changesets
abort: could not import module directory!
transaction abort!
rollback completed
Exit 255

Is this a client- server-, or permissions problem?

Best regards,
John

Cedric Pinson wrote:

Hi Robert,
Ok i changed the code to fit the osg coding style. if you want to 
look at it

http://hg.plopbyte.net/animtk/file/0acae4280750
or get the repo:
hg clone http://hg.plopbyte.net/animtk

Cheers,
Cedric








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Best regards,
John
WeatherOne


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[osg-users] strange behavior on stereo rendering

2008-10-27 Thread adorn
Hello,

I'm trying to get working stereo for a three sided CAVE. I use a stereo 
matrices callback which overrides the stereo matrix calculations in the 
osgUtil::SceneView class. But i only can see the output for the right buffer, 
the left buffer will never used. I printed out with 
glGetIntegrv(GL_DRAW_BUFFER, buffer) the current buffer value and i still get 
the GL_BACK_RIGHT, never GL_BACK_LEFT. The same behavior i get with 
osgViewer, without my Callback. I use the NVIDIA QuatroFX 4500.  Do i set or 
use a wrong state value or will my state value overriden by OSG inside?

With best regards Johann.


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[osg-users] gluScaleImage() returns out of memory

2008-10-27 Thread Can T. Oguz
Hi,

I'm receiving an out of memory error while trying to scale an image.

File : Image.cpp
Line : 839 (2.6.1)

In Image::scaleImage(), gluScaleImage() returns 1285 : out of memory.

Any ideas?

Can
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Re: [osg-users] gluScaleImage() returns out of memory

2008-10-27 Thread Glenn Waldron
Usually this means you don't have an active GL graphics context, which
unfortunately gluScaleImage requires. -gw

Glenn Waldron : Pelican Mapping : http://pelicanmapping.com :
+1.703.652.4791


On Mon, Oct 27, 2008 at 8:44 AM, Can T. Oguz [EMAIL PROTECTED] wrote:

 Hi,

 I'm receiving an out of memory error while trying to scale an image.

 File : Image.cpp
 Line : 839 (2.6.1)

 In Image::scaleImage(), gluScaleImage() returns 1285 : out of memory.

 Any ideas?

 Can

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Re: [osg-users] gluScaleImage() returns out of memory

2008-10-27 Thread Tomlinson, Gordon
First guess 'Are you doing this in process with a valid graphics
context'
 
 
Might help if you provided some basic info such as
 
 
How are you scaling the image (code)
What version of osg
What OS
how big is the image
What type of image is it
Graphics card
etc.
 
have you tried debug  the issue? , stepped into the code etc to see what
might be amiss
 
 

Gordon

__
Gordon Tomlinson

Product Manager 3D
Email  : gtomlinson @ overwatch.textron.com
__
(C): (+1) 571-265-2612
(W): (+1) 703-437-7651

Self defence is not a function of learning tricks 
but is a function of how quickly and intensely one 
can arouse one's instinct for survival 
- Master Tambo Tetsura

 
 



From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Can T.
Oguz
Sent: Monday, October 27, 2008 8:45 AM
To: OpenSceneGraph Users
Subject: [osg-users] gluScaleImage() returns out of memory


Hi,
 
I'm receiving an out of memory error while trying to scale an image. 
 
File : Image.cpp
Line : 839 (2.6.1)
 
In Image::scaleImage(), gluScaleImage() returns 1285 : out of memory.
 
Any ideas?
 
Can
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Re: [osg-users] gluScaleImage() returns out of memory

2008-10-27 Thread Can T. Oguz
Hi,

Yes, I've read the previous posts and I have a valid context. I have even
made the calls after the first frame() is executed (to ensure the context)

Source image is 512x217
Dest image is 50x20
OS : Win XP
Image iss JPG,  GL_RGB
Card : NVidia 8800 GT
OSG : 2.6.1

and the code is :


for (UINT i = 0; i  3; i++)

{

Image* image = readImageFile(string(path) + textureFiles[i] + .jpg);

m_textures[i] = new Texture2D(image);

m_thumbnails[i] = new Image(*image, CopyOp::DEEP_COPY_IMAGES);

m_thumbnails[i]-scaleImage(50, 20, 1);

}

I've also tried a non-copied fresh image and I've got the same error.

Thanks for reading,

Can




2008/10/27 Tomlinson, Gordon [EMAIL PROTECTED]

  First guess 'Are you doing this in process with a valid graphics context'


 Might help if you provided some basic info such as


 How are you scaling the image (code)
 What version of osg
 What OS
 how big is the image
 What type of image is it
 Graphics card
 etc.

  have you tried debug  the issue? , stepped into the code etc to see what
 might be amiss



 *Gordon*

 __
 *Gordon Tomlinson*

 *Product Manager 3D
 **Email * : gtomlinson @ overwatch.textron.com
 __
 *(C): (+1) 571-265-2612
 (W)**: (+1) 703-437-7651*

 Self defence is not a function of learning tricks
 but is a function of how quickly and intensely one
 can arouse one's instinct for survival
 - *Master Tambo Tetsura*



  --
 *From:* [EMAIL PROTECTED] [mailto:
 [EMAIL PROTECTED] *On Behalf Of *Can T. Oguz
 *Sent:* Monday, October 27, 2008 8:45 AM
 *To:* OpenSceneGraph Users
 *Subject:* [osg-users] gluScaleImage() returns out of memory

   Hi,

 I'm receiving an out of memory error while trying to scale an image.

 File : Image.cpp
 Line : 839 (2.6.1)

 In Image::scaleImage(), gluScaleImage() returns 1285 : out of memory.

 Any ideas?

 Can

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Re: [osg-users] gluScaleImage() returns out of memory

2008-10-27 Thread Robert Osfield
Hi Can,

You make no mention where about your call the scaleImage from, there
is chance that you think you are calling it from a thread with the
graphics context but don't.  Without more info about your usage there
isn't anyone else can say.  Please remember the OSG is multi-threaded,
and by default with put the graphics in its own thread per context so
then main thread won't have the context current.

Robert.

On Mon, Oct 27, 2008 at 1:06 PM, Can T. Oguz [EMAIL PROTECTED] wrote:
 Hi,

 Yes, I've read the previous posts and I have a valid context. I have even
 made the calls after the first frame() is executed (to ensure the context)

 Source image is 512x217
 Dest image is 50x20
 OS : Win XP
 Image iss JPG,  GL_RGB
 Card : NVidia 8800 GT
 OSG : 2.6.1

 and the code is :


 for (UINT i = 0; i  3; i++)

 {

 Image

 * image = readImageFile(string(path) + textureFiles[i] + .jpg);

 m_textures

 [i] = new Texture2D(image);

 m_thumbnails

 [i] = new Image(*image, CopyOp::DEEP_COPY_IMAGES);

 m_thumbnails

 [i]-scaleImage(50, 20, 1);

 }

 I've also tried a non-copied fresh image and I've got the same error.

 Thanks for reading,

 Can



 2008/10/27 Tomlinson, Gordon [EMAIL PROTECTED]

 First guess 'Are you doing this in process with a valid graphics context'


 Might help if you provided some basic info such as


 How are you scaling the image (code)
 What version of osg
 What OS
 how big is the image
 What type of image is it
 Graphics card
 etc.

 have you tried debug  the issue? , stepped into the code etc to see what
 might be amiss



 Gordon

 __
 Gordon Tomlinson

 Product Manager 3D
 Email  : gtomlinson @ overwatch.textron.com
 __
 (C): (+1) 571-265-2612
 (W): (+1) 703-437-7651

 Self defence is not a function of learning tricks
 but is a function of how quickly and intensely one
 can arouse one's instinct for survival
 - Master Tambo Tetsura



 
 From: [EMAIL PROTECTED]
 [mailto:[EMAIL PROTECTED] On Behalf Of Can T. Oguz
 Sent: Monday, October 27, 2008 8:45 AM
 To: OpenSceneGraph Users
 Subject: [osg-users] gluScaleImage() returns out of memory

 Hi,

 I'm receiving an out of memory error while trying to scale an image.

 File : Image.cpp
 Line : 839 (2.6.1)

 In Image::scaleImage(), gluScaleImage() returns 1285 : out of memory.

 Any ideas?

 Can
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Re: [osg-users] gluScaleImage() returns out of memory

2008-10-27 Thread Can T. Oguz
Hi,

I'm running OSG in single threaded mode and making the calls right after the
context setup code, but if you think that the scaling operation needs to be
done within the OSG's inner threads; then there's no chance that I could use
this function. If you suggest an alternative, I'll follow.

Regards,

Can

2008/10/27 Robert Osfield [EMAIL PROTECTED]

 Hi Can,

 You make no mention where about your call the scaleImage from, there
 is chance that you think you are calling it from a thread with the
 graphics context but don't.  Without more info about your usage there
 isn't anyone else can say.  Please remember the OSG is multi-threaded,
 and by default with put the graphics in its own thread per context so
 then main thread won't have the context current.

 Robert.

 On Mon, Oct 27, 2008 at 1:06 PM, Can T. Oguz [EMAIL PROTECTED] wrote:
  Hi,
 
  Yes, I've read the previous posts and I have a valid context. I have even
  made the calls after the first frame() is executed (to ensure the
 context)
 
  Source image is 512x217
  Dest image is 50x20
  OS : Win XP
  Image iss JPG,  GL_RGB
  Card : NVidia 8800 GT
  OSG : 2.6.1
 
  and the code is :
 
 
  for (UINT i = 0; i  3; i++)
 
  {
 
  Image
 
  * image = readImageFile(string(path) + textureFiles[i] + .jpg);
 
  m_textures
 
  [i] = new Texture2D(image);
 
  m_thumbnails
 
  [i] = new Image(*image, CopyOp::DEEP_COPY_IMAGES);
 
  m_thumbnails
 
  [i]-scaleImage(50, 20, 1);
 
  }
 
  I've also tried a non-copied fresh image and I've got the same error.
 
  Thanks for reading,
 
  Can
 
 
 
  2008/10/27 Tomlinson, Gordon [EMAIL PROTECTED]
 
  First guess 'Are you doing this in process with a valid graphics
 context'
 
 
  Might help if you provided some basic info such as
 
 
  How are you scaling the image (code)
  What version of osg
  What OS
  how big is the image
  What type of image is it
  Graphics card
  etc.
 
  have you tried debug  the issue? , stepped into the code etc to see what
  might be amiss
 
 
 
  Gordon
 
  __
  Gordon Tomlinson
 
  Product Manager 3D
  Email  : gtomlinson @ overwatch.textron.com
  __
  (C): (+1) 571-265-2612
  (W): (+1) 703-437-7651
 
  Self defence is not a function of learning tricks
  but is a function of how quickly and intensely one
  can arouse one's instinct for survival
  - Master Tambo Tetsura
 
 
 
  
  From: [EMAIL PROTECTED]
  [mailto:[EMAIL PROTECTED] On Behalf Of Can T.
 Oguz
  Sent: Monday, October 27, 2008 8:45 AM
  To: OpenSceneGraph Users
  Subject: [osg-users] gluScaleImage() returns out of memory
 
  Hi,
 
  I'm receiving an out of memory error while trying to scale an image.
 
  File : Image.cpp
  Line : 839 (2.6.1)
 
  In Image::scaleImage(), gluScaleImage() returns 1285 : out of memory.
 
  Any ideas?
 
  Can
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Re: [osg-users] Problem with computeIntersections for nodes below post render camera

2008-10-27 Thread Chris Denham

Hi Robert,

For my usage of computeIntersections, as I said, I put the test scene into 
the osgpick example. From there it is quite clear that the picking results 
do not return what I believe most people will expect for that scene.
I was aware that the computeIntersections method is a wrapper for the 
IntersectionVisitor class, but this class shows the same symptoms when used 
directly. My intention was to give the most condensed example of the problem 
in the hope the people would clearly understand the scenario that I think is 
misbehaving. Ho hum. ;-)


So, I decided to put my miners helmet on and deleve into the subterranean 
depths of the osg machine.  I think I have discovered that something is 
missing from 'IntersectionVisitor::accept(Camera)' because is makes the 
assumption that all cameras have an absolute coordinate frame. This is an 
assumption that neither PickVisitor::appy(Camera) or 
CullVisitor::apply(Camera) makes. So I have merged the relevant code from 
CullVistor into IntersectionVisitor and this now seems to function 
correctly.


Please can you check the attached file with changes appied to 
IntersectionVisitor.cpp (from osg 2.6).

[Also posted to submissions list]

Chris.



Date: Sun, 26 Oct 2008 15:53:19 +
From: Robert Osfield [EMAIL PROTECTED]
Subject: Re: [osg-users] Problem with computeIntersections for nodes
below post render camera.
To: OpenSceneGraph Users osg-users@lists.openscenegraph.org
Message-ID:
[EMAIL PROTECTED]
Content-Type: text/plain; charset=ISO-8859-1

Hi Chris,

There isn't enough info about how you are calling computeIntersections
to really know what is going on - there are several
computeIntersections methods, so I can't say whether it's a bug, or
code misuse.

As a general note, the computeIntersections methods are just
convenience methods for the most common needs, but they are just
implemented on top the general purpose
IntersectionVisitor/*Intersector classes.  These classes aren't
difficult to use so you just implement your work on these.

Robert.

On Sun, Oct 26, 2008 at 10:28 AM, Chris Denham [EMAIL PROTECTED] 
wrote:
I have a problem with Viewer:computeIntersections for nodes below a 
subgraph
rendering camera that doesn't have the ABSOLUTE_RF reference frame. In 
fact,
computeIntersections results are exactly as though an ABSOLUTE_RF has 
been
set on the camera, even though it has not.  The code below creates a 
simple
scene the exhibits the problem. I used this in the osgpick example to 
show

computed intersections.
Is this a bug, or is this to be expected? If it is to be expected, how 
can I

get picking to work for nodes below my post render camera?
Chris.

 osg::Group* group = new osg::Group();

 osg::Geode* sphere = new osg::Geode();
 sphere-setName(Sphere);
 sphere-addDrawable(new osg::ShapeDrawable(new osg::Sphere()));

 osg::Geode* cube = new osg::Geode();
 cube-setName(Cube);
 cube-addDrawable(new osg::ShapeDrawable(new osg::Box()));

 osg::Camera* camera = new osg::Camera();
 camera-setRenderOrder(osg::Camera::POST_RENDER);
 camera-setClearMask(GL_DEPTH_BUFFER_BIT);
 //camera-setReferenceFrame(osg::Transform::ABSOLUTE_RF);

 group-addChild(sphere);
 group-addChild(camera);
 camera-addChild(cube);
___
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield 
*
* This library is open source and may be redistributed and/or modified under  
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
* (at your option) any later version.  The full license is in LICENSE file

* included with this distribution, and on the openscenegraph.org website.
* 
* This library is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
* OpenSceneGraph Public License for more details.

*/


#include osgUtil/IntersectionVisitor

#include osg/PagedLOD
#include osg/Transform
#include osg/Projection
#include osg/Camera
#include osg/Geode
#include osg/Billboard
#include osg/Geometry
#include osg/Notify
#include osg/io_utils

using namespace osgUtil;


///
//
//  IntersectorGroup
//

IntersectorGroup::IntersectorGroup()
{
}

void IntersectorGroup::addIntersector(Intersector* intersector)
{
   _intersectors.push_back(intersector);
}

void IntersectorGroup::clear()
{
   _intersectors.clear();
}

Intersector* IntersectorGroup::clone(osgUtil::IntersectionVisitor iv)
{
   IntersectorGroup* ig = new IntersectorGroup;
   
   // now copy across all intersectors that arn't disabled.

   for(Intersectors::iterator itr = _intersectors.begin();
   itr != _intersectors.end();
   ++itr)
   {
   if (!(*itr)-disabled())
   {
   ig-addIntersector( (*itr)-clone(iv) );
   }
   }

   return ig;
}

bool IntersectorGroup::enter(const osg::Node 

[osg-users] setViewMatrixAsLook at and getViewMatrixAsLookAt

2008-10-27 Thread Renan Mendes
Hi,

 I am using these two methods: setViewMatrixAsLookAt(eye, center, up)
and getViewMatrixAsLookAt(eye, center, up) with the viewer's camera in
this order and WITHOUT manipulating the camera elsewhere in my code. I don't
have much experience with OSG but isn't the last method supposed to return
in the eye, center and up objects the same parameters that I have used to
set the view matrix before? I've made a simple test:

viewer.getCamera()-setViewMatrixAsLookAt(osg::Vec3f(10., -10., 2.),
osg::Vec3f(0., 0., 0.), osg::Z_AXIS);

osg::Vec3f eye;
osg::Vec3f center;
osg::Vec3f up;
viewer.getCamera()-getViewMatrixAsLookAt(eye, center, up);

cout  eye   eye.x() eye.y() eye.z()  endl;
cout  center   center.x() center.y()
center.z()  endl;
cout  up   up.x() up.y() up.z()  endl;

And what I've got from the cout's was:

eye: 10 -10 2 (OK)
center: 9.29986 -9.29986 1.85997
up: -0.0990148 0.0990148 0.990148

What am I doing wrong here? Did I misunderstand the purpose of the
method?

   Renan M Z Mendes
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Re: [osg-users] gluScaleImage() returns out of memory

2008-10-27 Thread Robert Osfield
Hi Can,

The osgViewer::Viewer by default now releases the context after
frame() even in single threaded - this is required to handle users
calling multiple viewers from one frame loop.   In
include/osgViewer/ViewerBase you'll find the method:

/** Hint to tell the renderingTraversals() method whether to
call relaseContext() on the last
  * context that was made current by the thread calling
renderingTraverals().  Note, when
  * running multi-threaded viewer no threads will be made
current or release current.
  * Setting this hint to false can enable the frame loop to be
lazy about calling makeCurrent
  * and releaseContext on each new frame, helping performance.
 However, if you frame loop
  * is managing multiple graphics context all from the main
frame thread then this hint must
  * be left on, otherwise the wrong context could be left
active, introducing errors in rendering.*/
void setReleaseContextAtEndOfFrameHint(bool hint) {
_releaseContextAtEndOfFrameHint = hint; }

So you can call :

  viewer.setReleaseContextAtEndOfFrameHint(false);

And you'll be able to call OpenGL op's after frame(), but... your code
will be working on a wing and prayer - as later you might want to go
multi-threaded, or use multiple graphics context in which case the
main thread once more won't have the graphics context current.

The way to fix this robustly is do add the ops via a Camera Pre or
PostDrawCallback as no matter what the threading model it'll work.

Robert.

On Mon, Oct 27, 2008 at 1:29 PM, Can T. Oguz [EMAIL PROTECTED] wrote:
 Hi,

 I'm running OSG in single threaded mode and making the calls right after the
 context setup code, but if you think that the scaling operation needs to be
 done within the OSG's inner threads; then there's no chance that I could use
 this function. If you suggest an alternative, I'll follow.

 Regards,

 Can

 2008/10/27 Robert Osfield [EMAIL PROTECTED]

 Hi Can,

 You make no mention where about your call the scaleImage from, there
 is chance that you think you are calling it from a thread with the
 graphics context but don't.  Without more info about your usage there
 isn't anyone else can say.  Please remember the OSG is multi-threaded,
 and by default with put the graphics in its own thread per context so
 then main thread won't have the context current.

 Robert.

 On Mon, Oct 27, 2008 at 1:06 PM, Can T. Oguz [EMAIL PROTECTED] wrote:
  Hi,
 
  Yes, I've read the previous posts and I have a valid context. I have
  even
  made the calls after the first frame() is executed (to ensure the
  context)
 
  Source image is 512x217
  Dest image is 50x20
  OS : Win XP
  Image iss JPG,  GL_RGB
  Card : NVidia 8800 GT
  OSG : 2.6.1
 
  and the code is :
 
 
  for (UINT i = 0; i  3; i++)
 
  {
 
  Image
 
  * image = readImageFile(string(path) + textureFiles[i] + .jpg);
 
  m_textures
 
  [i] = new Texture2D(image);
 
  m_thumbnails
 
  [i] = new Image(*image, CopyOp::DEEP_COPY_IMAGES);
 
  m_thumbnails
 
  [i]-scaleImage(50, 20, 1);
 
  }
 
  I've also tried a non-copied fresh image and I've got the same error.
 
  Thanks for reading,
 
  Can
 
 
 
  2008/10/27 Tomlinson, Gordon [EMAIL PROTECTED]
 
  First guess 'Are you doing this in process with a valid graphics
  context'
 
 
  Might help if you provided some basic info such as
 
 
  How are you scaling the image (code)
  What version of osg
  What OS
  how big is the image
  What type of image is it
  Graphics card
  etc.
 
  have you tried debug  the issue? , stepped into the code etc to see
  what
  might be amiss
 
 
 
  Gordon
 
  __
  Gordon Tomlinson
 
  Product Manager 3D
  Email  : gtomlinson @ overwatch.textron.com
  __
  (C): (+1) 571-265-2612
  (W): (+1) 703-437-7651
 
  Self defence is not a function of learning tricks
  but is a function of how quickly and intensely one
  can arouse one's instinct for survival
  - Master Tambo Tetsura
 
 
 
  
  From: [EMAIL PROTECTED]
  [mailto:[EMAIL PROTECTED] On Behalf Of Can T.
  Oguz
  Sent: Monday, October 27, 2008 8:45 AM
  To: OpenSceneGraph Users
  Subject: [osg-users] gluScaleImage() returns out of memory
 
  Hi,
 
  I'm receiving an out of memory error while trying to scale an image.
 
  File : Image.cpp
  Line : 839 (2.6.1)
 
  In Image::scaleImage(), gluScaleImage() returns 1285 : out of memory.
 
  Any ideas?
 
  Can
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Re: [osg-users] setViewMatrixAsLook at and getViewMatrixAsLookAt

2008-10-27 Thread Paul Martz
The center isn't stored in the matrix, of course. Once the matrix is
constructed, the center could be any random point along the view direction
vector. You'll need to specify an eye distance, or scale the value yourself.
   -Paul
 


  _  

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Renan
Mendes
Sent: Monday, October 27, 2008 7:46 AM
To: OSG Mailing List
Subject: [osg-users] setViewMatrixAsLook at and getViewMatrixAsLookAt


Hi,

 I am using these two methods: setViewMatrixAsLookAt(eye, center, up)
and getViewMatrixAsLookAt(eye, center, up) with the viewer's camera in
this order and WITHOUT manipulating the camera elsewhere in my code. I don't
have much experience with OSG but isn't the last method supposed to return
in the eye, center and up objects the same parameters that I have used to
set the view matrix before? I've made a simple test:

viewer.getCamera()-setViewMatrixAsLookAt(osg::Vec3f(10., -10., 2.),
osg::Vec3f(0., 0., 0.), osg::Z_AXIS);

osg::Vec3f eye;
osg::Vec3f center;
osg::Vec3f up;
viewer.getCamera()-getViewMatrixAsLookAt(eye, center, up);

cout  eye   eye.x() eye.y() eye.z()  endl;
cout  center   center.x() center.y()
center.z()  endl;
cout  up   up.x() up.y() up.z()  endl;

And what I've got from the cout's was:

eye: 10 -10 2 (OK)
center: 9.29986 -9.29986 1.85997
up: -0.0990148 0.0990148 0.990148

What am I doing wrong here? Did I misunderstand the purpose of the
method?

   Renan M Z Mendes


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Re: [osg-users] setViewMatrixAsLook at and getViewMatrixAsLookAt

2008-10-27 Thread Robert Osfield
Hi Renan,

The answer to your problem can be found in the implementation of the
getViewMatrixAsLookAt(), note the last optional parameter.

/** Get to the position and orientation of a modelview matrix,
using the same convention as gluLookAt. */
void getViewMatrixAsLookAt(osg::Vec3d eye,osg::Vec3d
center,osg::Vec3d up,double lookDistance=1.0);

Basically what the problem boils down to is that a view matrix doesn't
have enough information to recover all the look at parameters that
your input.  It can recover the eye and up vectors accurately, but not
the center as the conversion to a matrix looses everything by the
direction vector between the eye and center.  This is where
lookDistance comes in, if you provide the original lookDistance then
the method can compute the eye, up, and look direction, then using the
lookDistance compute the center.

Robert.


On Mon, Oct 27, 2008 at 1:46 PM, Renan Mendes [EMAIL PROTECTED] wrote:
 Hi,

  I am using these two methods: setViewMatrixAsLookAt(eye, center, up)
 and getViewMatrixAsLookAt(eye, center, up) with the viewer's camera in
 this order and WITHOUT manipulating the camera elsewhere in my code. I don't
 have much experience with OSG but isn't the last method supposed to return
 in the eye, center and up objects the same parameters that I have used to
 set the view matrix before? I've made a simple test:

 viewer.getCamera()-setViewMatrixAsLookAt(osg::Vec3f(10., -10., 2.),
 osg::Vec3f(0., 0., 0.), osg::Z_AXIS);

 osg::Vec3f eye;
 osg::Vec3f center;
 osg::Vec3f up;
 viewer.getCamera()-getViewMatrixAsLookAt(eye, center, up);

 cout  eye   eye.x() eye.y() eye.z()  endl;
 cout  center   center.x() center.y()
 center.z()  endl;
 cout  up   up.x() up.y() up.z()  endl;

 And what I've got from the cout's was:

 eye: 10 -10 2 (OK)
 center: 9.29986 -9.29986 1.85997
 up: -0.0990148 0.0990148 0.990148

 What am I doing wrong here? Did I misunderstand the purpose of the
 method?

Renan M Z Mendes

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Re: [osg-users] VPB bug or faulty data?

2008-10-27 Thread Alejandro Aguilar Sierra
Hi Ralph,

I am using the last versions from svn.  Perhaps this warning from
gdalinfo gives a hint on what is wrong with this data?

gdalinfo volcanes.tif
Warning 1: TIFFReadDirectory:volcanes.tif: Wrong StripByteCounts
field, ignoring and calculating from imagelength

because otherwise it recognizes that there is no projection but has
all georeferencing information needed.

Coordinate System is `'
Origin = (-99.000,20.000)
Pixel Size = (0.0002778,-0.0002778)
Image Structure Metadata:
  INTERLEAVE=BAND
Corner Coordinates:
Upper Left  ( -99.000,  20.000)
Lower Left  ( -99.000,  19.000)
Upper Right ( -97.000,  20.000)
Lower Right ( -97.000,  19.000)
Center  ( -98.000,  19.500)

I built it with gdal_translate directly from the BIL file
gdal_translate -of GTiff -co TILED=YES
MDE-n20s19e097o099.bil volcanes.tif

The header of the BIL file says:

NROWS 3600
NCOLS 7200
NBANDS 1
NBITS 16
BYTEORDER I
LAYOUT BIL
SKIPBYTES 0
NODATA 0.00
BYTEORDER I
XDIM 0.000278
YDIM 0.000278
ULXMAP -98.999862
ULYMAP 19.9998612

Apparently it misses vertical information, but that is not the problem
right now.

Regards,

-- A.


On Mon, Oct 27, 2008 at 1:06 AM, Ralf Stokholm [EMAIL PROTECTED] wrote:
 Hi Alejandro
 Im not 100% here, but I think you still need to specify some sort of
 projection basis, even plain lat lon uses some defenition of the geoid like
 WGS84 og similar.

 Natrally it could be a problem with you GTiff file.

 What version of VPB OSG are you using?

 Brgs.

 Ralf

 2008/10/27 Alejandro Aguilar Sierra [EMAIL PROTECTED]

 Hi,

 Actually the data has no projections, it is in plain
 longitude/latitude coordinates. Which is the recomended projection for
 data about 1 or two degrees long so I can have it in kilometers?

 Regards,

 -- A.

 On Sun, Oct 26, 2008 at 2:04 AM, Ralf Stokholm [EMAIL PROTECTED]
 wrote:
  Hi Alejandro
 
  It seams you are missing projection information in the createt geotiff
  file.
 
  VPB needs some sort of projection system information in the input or you
  should specify the projection in the commandline for VPB
 
  It will be faster if you project your source data using ie gdalwarp,
  adal
  translate can also encode the projection data if its missing and you
  know
  what it should be.
 
  Brgs.
 
  Ralf Stokholm
 
  2008/10/26 Alejandro Aguilar Sierra [EMAIL PROTECTED]
 
  Hello:
 
  I got DEM data from INEGI (Mexican Geographic Institute) and convert
  it to Geo Tiff.
 
  gdal_translate -of GTiff -co TILED=YES
  MDE-n20s19e097o099.bil volcanes.tif
  gdaladdo -r average volcanes.tif 2 4 8 16 32
 
  gdalinfo volcanes.tif
  Warning 1: TIFFReadDirectory:volcanes.tif: Wrong StripByteCounts
  field, ignoring and calculating from imagelength
  Driver: GTiff/GeoTIFF
  Files: volcanes.tif
  Size is 7200, 3600
  Coordinate System is `'
  Origin = (-99.000,20.000)
  Pixel Size = (0.0002778,-0.0002778)
  Image Structure Metadata:
   INTERLEAVE=BAND
  Corner Coordinates:
  Upper Left  ( -99.000,  20.000)
  Lower Left  ( -99.000,  19.000)
  Upper Right ( -97.000,  20.000)
  Lower Right ( -97.000,  19.000)
  Center  ( -98.000,  19.500)
  Band 1 Block=256x256 Type=UInt16, ColorInterp=Gray
   NoData Value=0
   Overviews: 3600x1800, 1800x900, 900x450, 450x225, 225x113
  Warning 1: TIFFReadDirectory:volcanes.tif: Wrong StripByteCounts
  field, ignoring and calculating from imagelength
 
 
  If I try to create the terrain database this way I get only a line
  osgdem -d volcanes.tif -l 8  -v 1.0 -o volcanes.ive
 
  so I have to give approximate pixel size with xx and yy and it
  apparently
  works.
  osgdem --xx 33 --yy 33 -d volcanes.tif -l 8 -v 1.0 -o volcanes.ive
 
  Is there not enough information in the geotiff file? or this is a bug?
 
  Regards,
 
  -- A.
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Re: [osg-users] Call for feedback : AC3D loader behavior w.r.t texture repeat and clamping

2008-10-27 Thread Robert Osfield
Hi John,

On Mon, Oct 27, 2008 at 4:07 PM, John Cummings [EMAIL PROTECTED] wrote:
 In the process of finding a small example, I've realized that indeed the
 reference document is not clear at for this feature.

The reference documents say nothing about texture wrap modes at all.
Given that this is important feature of texturing the format feels
really outdated and insufficient for the job in hand.

 I am attaching a sample model.

Thanks, data illustrating problems are virtual gold dust :-)

  It is simple a slice of earth with tiled
 images. I have also attached some screenshots- one with the old behavior in
 the latest release of OSG, one with the current SVN version, and one with a
 screeshot of AC3D (sorry about the angle on that one). You will notice that a
 thin slice of the desert in Africa show up in the Atlantic and vice versa.
 Clearly not correct. However, AC3D renders it that way- leading me to think
 our old custom implementation simply papered over the issue.

I suspect small OpenGL drivers changing over the last 10 years has
lead slightly different intrepretions of texcoords on fragments, such
that the 0.99 that appear in your ac file are resulting in
fragments being computed with values  1.0 despite the tex coords on
the vertices never getting greater than 1.0 or less than 0.0.  It used
to be the case that values like these would be find with a wrap value
of CLAMP, or probably even REPEAT.   These days though you have to use
CLAMP_TO_EDGE to get the intended behaviour.

My guess AC3D was developed quite a while ago, making assumptions
about CLAMP/REPEAT working fine with the near to edge tex coordinates
that you've used, but with modern drivers things are now broken
because the cards are computing the tex coords on fragment slightly
differently.

Other parts of the OSG have migrated from use CLAMP to CLAMP_TO_EDGE
over the years just because of this issue.  Things use to work fine
with CLAMP, then drivers started popping up that broke this, and
required CLAMP_TO_EDGE.  I vaguely recall that it might of been ATI
drivers that were the first to have problems w.r.t this.  I see it now
on this dataset on my Nvidia card so it's probably an industry wide
migration.

 I am going to start a discussion on the AC3D forum as well since I think
 perhaps there is a feature in AC3D that I have not discovered as yet that
 would allow this behavior. Any other AC3D'ers on this list have some insight?

I can't provide any insight as I'm no AC3D user.

On the OSG side I think the only thing we could do is parse the tex
coord arrays on geometries and if they fit into the 0 to 1.0 range to
use CLAMP_TO_EDGE, otherwise use REPEAT.  Perhaps an new
osgUtil::Optimizer visitor would be appropriate for handling this type
of issue.

Robert.
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Re: [osg-users] VPB bug or faulty data?

2008-10-27 Thread Robert Osfield
Hi Alejandro,

There is no coordinate systeml information for VPB to go on, and empty
string for the coordinate system is not sufficient for determining the
coordinate system, the origin and pixel size info  aren't sufficient
on their own.

Robert.

On Mon, Oct 27, 2008 at 4:32 PM, Alejandro Aguilar Sierra
[EMAIL PROTECTED] wrote:
 Hi Ralph,

 I am using the last versions from svn.  Perhaps this warning from
 gdalinfo gives a hint on what is wrong with this data?

 gdalinfo volcanes.tif
 Warning 1: TIFFReadDirectory:volcanes.tif: Wrong StripByteCounts
 field, ignoring and calculating from imagelength

 because otherwise it recognizes that there is no projection but has
 all georeferencing information needed.

 Coordinate System is `'
 Origin = (-99.000,20.000)
 Pixel Size = (0.0002778,-0.0002778)
 Image Structure Metadata:
  INTERLEAVE=BAND
 Corner Coordinates:
 Upper Left  ( -99.000,  20.000)
 Lower Left  ( -99.000,  19.000)
 Upper Right ( -97.000,  20.000)
 Lower Right ( -97.000,  19.000)
 Center  ( -98.000,  19.500)

 I built it with gdal_translate directly from the BIL file
 gdal_translate -of GTiff -co TILED=YES
 MDE-n20s19e097o099.bil volcanes.tif

 The header of the BIL file says:

 NROWS 3600
 NCOLS 7200
 NBANDS 1
 NBITS 16
 BYTEORDER I
 LAYOUT BIL
 SKIPBYTES 0
 NODATA 0.00
 BYTEORDER I
 XDIM 0.000278
 YDIM 0.000278
 ULXMAP -98.999862
 ULYMAP 19.9998612

 Apparently it misses vertical information, but that is not the problem
 right now.

 Regards,

 -- A.


 On Mon, Oct 27, 2008 at 1:06 AM, Ralf Stokholm [EMAIL PROTECTED] wrote:
 Hi Alejandro
 Im not 100% here, but I think you still need to specify some sort of
 projection basis, even plain lat lon uses some defenition of the geoid like
 WGS84 og similar.

 Natrally it could be a problem with you GTiff file.

 What version of VPB OSG are you using?

 Brgs.

 Ralf

 2008/10/27 Alejandro Aguilar Sierra [EMAIL PROTECTED]

 Hi,

 Actually the data has no projections, it is in plain
 longitude/latitude coordinates. Which is the recomended projection for
 data about 1 or two degrees long so I can have it in kilometers?

 Regards,

 -- A.

 On Sun, Oct 26, 2008 at 2:04 AM, Ralf Stokholm [EMAIL PROTECTED]
 wrote:
  Hi Alejandro
 
  It seams you are missing projection information in the createt geotiff
  file.
 
  VPB needs some sort of projection system information in the input or you
  should specify the projection in the commandline for VPB
 
  It will be faster if you project your source data using ie gdalwarp,
  adal
  translate can also encode the projection data if its missing and you
  know
  what it should be.
 
  Brgs.
 
  Ralf Stokholm
 
  2008/10/26 Alejandro Aguilar Sierra [EMAIL PROTECTED]
 
  Hello:
 
  I got DEM data from INEGI (Mexican Geographic Institute) and convert
  it to Geo Tiff.
 
  gdal_translate -of GTiff -co TILED=YES
  MDE-n20s19e097o099.bil volcanes.tif
  gdaladdo -r average volcanes.tif 2 4 8 16 32
 
  gdalinfo volcanes.tif
  Warning 1: TIFFReadDirectory:volcanes.tif: Wrong StripByteCounts
  field, ignoring and calculating from imagelength
  Driver: GTiff/GeoTIFF
  Files: volcanes.tif
  Size is 7200, 3600
  Coordinate System is `'
  Origin = (-99.000,20.000)
  Pixel Size = (0.0002778,-0.0002778)
  Image Structure Metadata:
   INTERLEAVE=BAND
  Corner Coordinates:
  Upper Left  ( -99.000,  20.000)
  Lower Left  ( -99.000,  19.000)
  Upper Right ( -97.000,  20.000)
  Lower Right ( -97.000,  19.000)
  Center  ( -98.000,  19.500)
  Band 1 Block=256x256 Type=UInt16, ColorInterp=Gray
   NoData Value=0
   Overviews: 3600x1800, 1800x900, 900x450, 450x225, 225x113
  Warning 1: TIFFReadDirectory:volcanes.tif: Wrong StripByteCounts
  field, ignoring and calculating from imagelength
 
 
  If I try to create the terrain database this way I get only a line
  osgdem -d volcanes.tif -l 8  -v 1.0 -o volcanes.ive
 
  so I have to give approximate pixel size with xx and yy and it
  apparently
  works.
  osgdem --xx 33 --yy 33 -d volcanes.tif -l 8 -v 1.0 -o volcanes.ive
 
  Is there not enough information in the geotiff file? or this is a bug?
 
  Regards,
 
  -- A.
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Re: [osg-users] VPB bug or faulty data?

2008-10-27 Thread Alejandro Aguilar Sierra
Hi Robert and Umit,

As probably you already read it, my data is georeferenced but has no
projection info (plain latitude, l,ongitude). Using plain osgdem
produces a wrong 1 dimension field (a line).

osgdem -d volcanes.tif  -l 8  -v 1.0 -o kk

I have to give some approximated --xx and --yy data to make it work
and even so it does wrongly, creating the mirror image in the Y
direction, as you can see comparing the texture image with the
produced terrain.
Any hint?

Where can I find documentation about vpbmaster, vpbcache and vpbsize?

Regards,

-- A.

On Mon, Oct 27, 2008 at 3:40 AM, Robert Osfield
[EMAIL PROTECTED] wrote:
 Hi Umit,

 On Mon, Oct 27, 2008 at 9:25 AM, Ümit Uzun [EMAIL PROTECTED] wrote:
 Thanks for clarification. But I remember that, VPB can manipulate only WGS84
 referenced data. But it may be valid for only BlueMarble viewer. Sorry for
 wrong comment :)

 When building geocentric databases VPB reprojects the data into WGS84
 and then builds the data, if you are using vpbmaster then you'll need
 to do this reprojection as a prior step to calling vpbmaster.  The
 vpbcache utility can do this reprojection for you.  If you are just
 using osgdem standalone then it can do the reprojection for you.

 The key is that your source data should have at least a projection
 that GDAL recognizes otherwise you end up having to build your own
 projection.  GDAL has tools to allow you to do this.

 Robert.
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Re: [osg-users] VPB bug or faulty data?

2008-10-27 Thread Alejandro Aguilar Sierra
Hi Robert:

Yes but they are perfectly georeferenced. What shoud I do?
--geocentric is enough?

-- A.

On Mon, Oct 27, 2008 at 10:38 AM, Robert Osfield
[EMAIL PROTECTED] wrote:
 Hi Alejandro,

 There is no coordinate systeml information for VPB to go on, and empty
 string for the coordinate system is not sufficient for determining the
 coordinate system, the origin and pixel size info  aren't sufficient
 on their own.

 Robert.

 On Mon, Oct 27, 2008 at 4:32 PM, Alejandro Aguilar Sierra
 [EMAIL PROTECTED] wrote:
 Hi Ralph,

 I am using the last versions from svn.  Perhaps this warning from
 gdalinfo gives a hint on what is wrong with this data?

 gdalinfo volcanes.tif
 Warning 1: TIFFReadDirectory:volcanes.tif: Wrong StripByteCounts
 field, ignoring and calculating from imagelength

 because otherwise it recognizes that there is no projection but has
 all georeferencing information needed.

 Coordinate System is `'
 Origin = (-99.000,20.000)
 Pixel Size = (0.0002778,-0.0002778)
 Image Structure Metadata:
  INTERLEAVE=BAND
 Corner Coordinates:
 Upper Left  ( -99.000,  20.000)
 Lower Left  ( -99.000,  19.000)
 Upper Right ( -97.000,  20.000)
 Lower Right ( -97.000,  19.000)
 Center  ( -98.000,  19.500)

 I built it with gdal_translate directly from the BIL file
 gdal_translate -of GTiff -co TILED=YES
 MDE-n20s19e097o099.bil volcanes.tif

 The header of the BIL file says:

 NROWS 3600
 NCOLS 7200
 NBANDS 1
 NBITS 16
 BYTEORDER I
 LAYOUT BIL
 SKIPBYTES 0
 NODATA 0.00
 BYTEORDER I
 XDIM 0.000278
 YDIM 0.000278
 ULXMAP -98.999862
 ULYMAP 19.9998612

 Apparently it misses vertical information, but that is not the problem
 right now.

 Regards,

 -- A.


 On Mon, Oct 27, 2008 at 1:06 AM, Ralf Stokholm [EMAIL PROTECTED] wrote:
 Hi Alejandro
 Im not 100% here, but I think you still need to specify some sort of
 projection basis, even plain lat lon uses some defenition of the geoid like
 WGS84 og similar.

 Natrally it could be a problem with you GTiff file.

 What version of VPB OSG are you using?

 Brgs.

 Ralf

 2008/10/27 Alejandro Aguilar Sierra [EMAIL PROTECTED]

 Hi,

 Actually the data has no projections, it is in plain
 longitude/latitude coordinates. Which is the recomended projection for
 data about 1 or two degrees long so I can have it in kilometers?

 Regards,

 -- A.

 On Sun, Oct 26, 2008 at 2:04 AM, Ralf Stokholm [EMAIL PROTECTED]
 wrote:
  Hi Alejandro
 
  It seams you are missing projection information in the createt geotiff
  file.
 
  VPB needs some sort of projection system information in the input or you
  should specify the projection in the commandline for VPB
 
  It will be faster if you project your source data using ie gdalwarp,
  adal
  translate can also encode the projection data if its missing and you
  know
  what it should be.
 
  Brgs.
 
  Ralf Stokholm
 
  2008/10/26 Alejandro Aguilar Sierra [EMAIL PROTECTED]
 
  Hello:
 
  I got DEM data from INEGI (Mexican Geographic Institute) and convert
  it to Geo Tiff.
 
  gdal_translate -of GTiff -co TILED=YES
  MDE-n20s19e097o099.bil volcanes.tif
  gdaladdo -r average volcanes.tif 2 4 8 16 32
 
  gdalinfo volcanes.tif
  Warning 1: TIFFReadDirectory:volcanes.tif: Wrong StripByteCounts
  field, ignoring and calculating from imagelength
  Driver: GTiff/GeoTIFF
  Files: volcanes.tif
  Size is 7200, 3600
  Coordinate System is `'
  Origin = (-99.000,20.000)
  Pixel Size = (0.0002778,-0.0002778)
  Image Structure Metadata:
   INTERLEAVE=BAND
  Corner Coordinates:
  Upper Left  ( -99.000,  20.000)
  Lower Left  ( -99.000,  19.000)
  Upper Right ( -97.000,  20.000)
  Lower Right ( -97.000,  19.000)
  Center  ( -98.000,  19.500)
  Band 1 Block=256x256 Type=UInt16, ColorInterp=Gray
   NoData Value=0
   Overviews: 3600x1800, 1800x900, 900x450, 450x225, 225x113
  Warning 1: TIFFReadDirectory:volcanes.tif: Wrong StripByteCounts
  field, ignoring and calculating from imagelength
 
 
  If I try to create the terrain database this way I get only a line
  osgdem -d volcanes.tif -l 8  -v 1.0 -o volcanes.ive
 
  so I have to give approximate pixel size with xx and yy and it
  apparently
  works.
  osgdem --xx 33 --yy 33 -d volcanes.tif -l 8 -v 1.0 -o volcanes.ive
 
  Is there not enough information in the geotiff file? or this is a bug?
 
  Regards,
 
  -- A.
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Re: [osg-users] VPB bug or faulty data?

2008-10-27 Thread Robert Osfield
Hi Alejandro,

Your data *is* the problem, please add the coordinate system info.
Using the --xx etc options really is not a good solution going
forward.  Use properly set up data and things will work fine.  Please
go check out the gdal website for info on how to set up your data.

As for VPB docs, I haven't had a chance to write full docs for all the
utilities yet.  There are some notes online.

Robert.

On Mon, Oct 27, 2008 at 4:43 PM, Alejandro Aguilar Sierra
[EMAIL PROTECTED] wrote:
 Hi Robert and Umit,

 As probably you already read it, my data is georeferenced but has no
 projection info (plain latitude, l,ongitude). Using plain osgdem
 produces a wrong 1 dimension field (a line).

 osgdem -d volcanes.tif  -l 8  -v 1.0 -o kk

 I have to give some approximated --xx and --yy data to make it work
 and even so it does wrongly, creating the mirror image in the Y
 direction, as you can see comparing the texture image with the
 produced terrain.
 Any hint?

 Where can I find documentation about vpbmaster, vpbcache and vpbsize?

 Regards,

 -- A.

 On Mon, Oct 27, 2008 at 3:40 AM, Robert Osfield
 [EMAIL PROTECTED] wrote:
 Hi Umit,

 On Mon, Oct 27, 2008 at 9:25 AM, Ümit Uzun [EMAIL PROTECTED] wrote:
 Thanks for clarification. But I remember that, VPB can manipulate only WGS84
 referenced data. But it may be valid for only BlueMarble viewer. Sorry for
 wrong comment :)

 When building geocentric databases VPB reprojects the data into WGS84
 and then builds the data, if you are using vpbmaster then you'll need
 to do this reprojection as a prior step to calling vpbmaster.  The
 vpbcache utility can do this reprojection for you.  If you are just
 using osgdem standalone then it can do the reprojection for you.

 The key is that your source data should have at least a projection
 that GDAL recognizes otherwise you end up having to build your own
 projection.  GDAL has tools to allow you to do this.

 Robert.
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Re: [osg-users] setViewMatrixAsLook at and getViewMatrixAsLookAt

2008-10-27 Thread Renan Mendes
Thanks, Paul and Robert.
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[osg-users] What can I do with the NodeKit osgSim?

2008-10-27 Thread Martin Großer
Hello all,

I've a simply question about the NodeKit osgSim. Can everybody explain me
when it's commendable to use. What is the benefit? I used never before.

Cheers,

Martin

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[osg-users] Please test SVN of OpenSceneGraph in prep for 2.7.4 dev release

2008-10-27 Thread Robert Osfield
Hi All,

I'm just prepping for the OpenSceneGraph-2.7.4 dev release, so am once
again looking for help in testing!

There have been lots of bug and build fixes checked in since 2.7.3,
and feature refinements but as always this might come with their own
regressions, so please do a check out of svn/trunk and test the build
and execution of this baby :-)

Major changes are:

Compression/Decompression related support:

  New gz plugin for reading files from .gz compressed files.

  Support for zlib compression directly in .ive files.  (use osgconv
myfile.ive compress.ive -O compress).

  Support for compressing HeightField use byte/shorts in place of
float arrays, and special handling of single height HeightField.

  (note, VirtualPlanetBuilder supports this new compression)

Improvements to DatabasePager

  New support for controlling the number of threads that the DatabasePager uses.

  New scheme for managing the expiry of inactive PagedLOD in the
DatabasePager, the new scheme allows you to set a taget maximum number
PagedLODs.

  Improvements to DatabasePager's handling of the case of using no pre
compile so it performs is now much better when using osgTerrain based
datasets.

  New osgDB::FileCache class for managing local file cache of files
download from the internet.

All these changes together improve substantially improve performance
of streaming paged databases over http.

For 2.7.4 I'll build a database and upload to openscenegraph.org for
you guys to try out ;-)

Robert.

--  All 51 check-ins since 2.7.3 are:

2008-10-27 17:11 + [r9066-9067]  robert:

* Merged in comment split code from the old flt plugin so that FLT
  comments string with returns in them are put into separate
  description entries.

* From Wojciech Lewandowski, I am sending a really minor fix for
  StatsHandler::reset method. We dynamically add and remove slave
  cameras in our application. StatsHandler does not automatically
  adapt to this situation, and we call StatsHandler::reset to force
  it to update number of cameras and their graphs. Unfortunately,
  if stats were already drawn, reset would not remove former graph
  drawables and they would remain frozen below new stats. This
  update fixes it. 

2008-10-27 16:16 + [r9065]  robert:

* From Chris Denham, default scene that tests the use of in scene
  graph Camera which has a RELATIVE_RF ReferenceFrame.

2008-10-27 16:06 + [r9064]  robert:

* From Chris Denham, fixed support of in scene graph osg::Camera's
  with ReferenceFrame of RELATIVE_RF.

2008-10-27 15:26 + [r9063]  robert:

* From Katharina Plugge, I found a bug in the OpenFlight-Plugin.
  When exporting to OpenFlight it could happen that palettes of an
  external reference like the texture palette are set wrong,
  because they are overwritten by parent settings (userData), which
  actually do not refer to palette entries respectively ParentPools
  (happens for example if a Transform is parent of a ProxyNode).
  The static cast from userData to ParentPools should therefore be
  a dynamic cast. --- function
  FltExportVisitor::writeExternalReference( const osg::ProxyNode
  proxy ): Line 423 in file expPrimaryRecords.cpp has to be changed
  from const ParentPools* pp = static_castconst
  ParentPools*(proxy.getUserData() ); to const ParentPools* pp =
  dynamic_castconst ParentPools*(proxy.getUserData() ); 

2008-10-27 13:09 + [r9062]  robert:

* Various warning fixes

2008-10-27 11:49 + [r9061]  robert:

* Updated wrappers

2008-10-27 11:08 + [r9060]  robert:

* From Mathias Froehlich, This change is a result of a recent
  thread on osg-users. The semantic change that went into the ac
  loader with the past patch was incorrect wrt the document
  describing the behaviour of ac files and inconsistent with what
  ac3d itself displays for that files. This attached change reverts
  the behaviour to the original one. The infrastructure to change
  this is left in place. The change is based on rev 9045.

2008-10-27 10:42 + [r9058-9059]  robert:

* From Blasius Czink, Among other things I added support for
  atomic operations on BSD-like systems and additional methods (for
  and, or, xor).  and a later post the same osg-submissions
  thread: it's been a while since I have made the changes but I
  think it was due to problems with static builds of OpenThreads on
  windows. I was using OpenThreads in a
  communication/synchronisation library (without OpenSceneGraph).
  It seems I forgot to post a small change in the CMakeLists file
  of OpenThreads. If a user turns DYNAMIC_OPENTHREADS to OFF
  (static 

[osg-users] Fwd: Problem with computeIntersections for nodes below post render camera

2008-10-27 Thread Robert Osfield
On Mon, Oct 27, 2008 at 5:18 PM, Chris Denham [EMAIL PROTECTED] wrote:
 Thanks Robert,
 I hadn't anticipated you checking also checking in the modified osgpick
 example.
 This may not be quite what you might intend, since the default scene used to
 be fountain.osg, but now has my rather disconcerting scene. Perhaps my
 test scene would be better to be the default if the default fountain.osg is
 not found.
 I'll submit the osgpick.cpp file again if you think that is better.

Ohh, yes that would be better, must admit in my rush of tackling a
whole range of issue this afternoon I obviously didn't review your
change to osgpick critically enough, I was just pleased to have a
problem reproducable.

Having your little test dataset as a command line option would
probably be the best solution.

Robert.
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Re: [osg-users] setViewMatrixAsLook at and getViewMatrixAsLookAt

2008-10-27 Thread Renan Mendes
Now that you have explained to me how it works, maybe you could give me an
idea on how to solve a small problem I have.

In my application, the user can move the camera freely (all directions and
eye positions), but when the camera's direction is close to a given one, it
snaps into that given direction, maintaining though, the distance from the
objects of the scene. My doubt is on how to set the new view matrix if I
can't get from the old matrix the true center of my view...

Any ideas?

Thanks.

Renan
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Re: [osg-users] setViewMatrixAsLook at and getViewMatrixAsLookAt

2008-10-27 Thread Robert Osfield
Hi Renan,

You'll need to store basic parameters that you use to compute your
view matrix, for instance the eye point, center, up, or whatever is
most suitable for the type of camera manipulation you wish to
undertake.  For instance the osgGA CameraManipulator's all have there
own camera model that use use internally and on each frame compute the
view matrix from these.

Robert.

On Mon, Oct 27, 2008 at 6:50 PM, Renan Mendes [EMAIL PROTECTED] wrote:
 Now that you have explained to me how it works, maybe you could give me an
 idea on how to solve a small problem I have.

 In my application, the user can move the camera freely (all directions and
 eye positions), but when the camera's direction is close to a given one, it
 snaps into that given direction, maintaining though, the distance from the
 objects of the scene. My doubt is on how to set the new view matrix if I
 can't get from the old matrix the true center of my view...

 Any ideas?

 Thanks.

 Renan

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[osg-users] Sharing PrimitiveSets between Geometrys

2008-10-27 Thread Brian R Hill
Folks,

Can primitivesets be shared between geometrys similarly to vertexes,
colors, and texcoords?

Brian

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Re: [osg-users] setViewMatrixAsLook at and getViewMatrixAsLookAt

2008-10-27 Thread Paul Martz
Ditto Robert's comments, with the following info:

setViewMatrixAsLookAt doesn't do anything magical, it just fills in the
matrix with four vectors to create the orthonormal basis and origin of a new
coordinate system. You already have the necessary data to compute this
matrix yourself. See the source code for setViewMatrixAsLookAt for guidance.
  -Paul

 
 Hi Renan,
 
 You'll need to store basic parameters that you use to compute 
 your view matrix, for instance the eye point, center, up, or 
 whatever is most suitable for the type of camera manipulation 
 you wish to undertake.  For instance the osgGA 
 CameraManipulator's all have there own camera model that use 
 use internally and on each frame compute the view matrix from these.
 
 Robert.
 
 On Mon, Oct 27, 2008 at 6:50 PM, Renan Mendes 
 [EMAIL PROTECTED] wrote:
  Now that you have explained to me how it works, maybe you 
 could give 
  me an idea on how to solve a small problem I have.
 
  In my application, the user can move the camera freely (all 
 directions 
  and eye positions), but when the camera's direction is close to a 
  given one, it snaps into that given direction, maintaining 
 though, the 
  distance from the objects of the scene. My doubt is on how 
 to set the 
  new view matrix if I can't get from the old matrix the true 
 center of my view...
 
  Any ideas?
 
  Thanks.
 
  Renan
 
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Re: [osg-users] VPB bug or faulty data?

2008-10-27 Thread Ralf Stokholm
Hi Alejandro

You can use gdalwarp to (stamp) the projection information into you data.

try using something similar to the following:

//call gdalwarp to project my data to wgs84
//This will create a virtual raster (vrt) which does not copy the data of
the original raster
//but creates a sort of filter for reading the data.
gdal_translate -of vrt -a_srs EPSG:4326  volcanes.tif volcanes.vrt

//Then use the vrt as input
osgdem -d volcanes.vrt  -l 8  -v 1.0 -o kk


EPSG:4326 is short form defenition of a basic lat lon coordinate system,
same format you will receive ie landsat data in.

Hope this helps.

Brgs.

Ralf Stokholm

2008/10/27 Robert Osfield [EMAIL PROTECTED]

 Hi Alejandro,

 Your data *is* the problem, please add the coordinate system info.
 Using the --xx etc options really is not a good solution going
 forward.  Use properly set up data and things will work fine.  Please
 go check out the gdal website for info on how to set up your data.

 As for VPB docs, I haven't had a chance to write full docs for all the
 utilities yet.  There are some notes online.

 Robert.

 On Mon, Oct 27, 2008 at 4:43 PM, Alejandro Aguilar Sierra
 [EMAIL PROTECTED] wrote:
  Hi Robert and Umit,
 
  As probably you already read it, my data is georeferenced but has no
  projection info (plain latitude, l,ongitude). Using plain osgdem
  produces a wrong 1 dimension field (a line).
 
  osgdem -d volcanes.tif  -l 8  -v 1.0 -o kk
 
  I have to give some approximated --xx and --yy data to make it work
  and even so it does wrongly, creating the mirror image in the Y
  direction, as you can see comparing the texture image with the
  produced terrain.
  Any hint?
 
  Where can I find documentation about vpbmaster, vpbcache and vpbsize?
 
  Regards,
 
  -- A.
 
  On Mon, Oct 27, 2008 at 3:40 AM, Robert Osfield
  [EMAIL PROTECTED] wrote:
  Hi Umit,
 
  On Mon, Oct 27, 2008 at 9:25 AM, Ümit Uzun [EMAIL PROTECTED]
 wrote:
  Thanks for clarification. But I remember that, VPB can manipulate only
 WGS84
  referenced data. But it may be valid for only BlueMarble viewer. Sorry
 for
  wrong comment :)
 
  When building geocentric databases VPB reprojects the data into WGS84
  and then builds the data, if you are using vpbmaster then you'll need
  to do this reprojection as a prior step to calling vpbmaster.  The
  vpbcache utility can do this reprojection for you.  If you are just
  using osgdem standalone then it can do the reprojection for you.
 
  The key is that your source data should have at least a projection
  that GDAL recognizes otherwise you end up having to build your own
  projection.  GDAL has tools to allow you to do this.
 
  Robert.
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[osg-users] QT4 ViewerQOSG and Q_OBJECT

2008-10-27 Thread mgb
Not a question so much as a note for the archives.

If you want ViewerQOSG to be able to handle signals it must have a Q_OBJECT 
definition.
In order to do this the viewerQT example must swap the order of the definition
to class ViewerQOSG : public QOSGWidget, public osgViewer::Viewer
The QT moc assumes that the parent class derived from QObject is first in the 
list.

In addition QOSGWidget must not have a Q_OBJECT since you cannot inherit from 
multiple Q_OBJECT defined classes.

Martin


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Re: [osg-users] VPB bug or faulty data?

2008-10-27 Thread Alejandro Aguilar Sierra
Hi Ralph,

It works, thank you very much!  :)

-- A.


On Mon, Oct 27, 2008 at 1:57 PM, Ralf Stokholm [EMAIL PROTECTED] wrote:
 Hi Alejandro

 You can use gdalwarp to (stamp) the projection information into you data.

 try using something similar to the following:

 //call gdalwarp to project my data to wgs84
 //This will create a virtual raster (vrt) which does not copy the data of
 the original raster
 //but creates a sort of filter for reading the data.
 gdal_translate -of vrt -a_srs EPSG:4326  volcanes.tif volcanes.vrt

 //Then use the vrt as input
 osgdem -d volcanes.vrt  -l 8  -v 1.0 -o kk


 EPSG:4326 is short form defenition of a basic lat lon coordinate system,
 same format you will receive ie landsat data in.

 Hope this helps.

 Brgs.

 Ralf Stokholm

 2008/10/27 Robert Osfield [EMAIL PROTECTED]

 Hi Alejandro,

 Your data *is* the problem, please add the coordinate system info.
 Using the --xx etc options really is not a good solution going
 forward.  Use properly set up data and things will work fine.  Please
 go check out the gdal website for info on how to set up your data.

 As for VPB docs, I haven't had a chance to write full docs for all the
 utilities yet.  There are some notes online.

 Robert.

 On Mon, Oct 27, 2008 at 4:43 PM, Alejandro Aguilar Sierra
 [EMAIL PROTECTED] wrote:
  Hi Robert and Umit,
 
  As probably you already read it, my data is georeferenced but has no
  projection info (plain latitude, l,ongitude). Using plain osgdem
  produces a wrong 1 dimension field (a line).
 
  osgdem -d volcanes.tif  -l 8  -v 1.0 -o kk
 
  I have to give some approximated --xx and --yy data to make it work
  and even so it does wrongly, creating the mirror image in the Y
  direction, as you can see comparing the texture image with the
  produced terrain.
  Any hint?
 
  Where can I find documentation about vpbmaster, vpbcache and vpbsize?
 
  Regards,
 
  -- A.
 
  On Mon, Oct 27, 2008 at 3:40 AM, Robert Osfield
  [EMAIL PROTECTED] wrote:
  Hi Umit,
 
  On Mon, Oct 27, 2008 at 9:25 AM, Ümit Uzun [EMAIL PROTECTED]
  wrote:
  Thanks for clarification. But I remember that, VPB can manipulate only
  WGS84
  referenced data. But it may be valid for only BlueMarble viewer. Sorry
  for
  wrong comment :)
 
  When building geocentric databases VPB reprojects the data into WGS84
  and then builds the data, if you are using vpbmaster then you'll need
  to do this reprojection as a prior step to calling vpbmaster.  The
  vpbcache utility can do this reprojection for you.  If you are just
  using osgdem standalone then it can do the reprojection for you.
 
  The key is that your source data should have at least a projection
  that GDAL recognizes otherwise you end up having to build your own
  projection.  GDAL has tools to allow you to do this.
 
  Robert.
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Re: [osg-users] Call for feedback : AC3D loader behavior w.r.t texture repeat and clamping

2008-10-27 Thread John Cummings
FYI, here is the link to the discussion on the Ac3D forum:

http://www.inivis.com/forum/showthread.php?t=5090

It seems to be headed in the same direction as Robert's comments regarding 
keeping track of the UV ranges.

-John

--  Original Message  --

Subject: Re: [osg-users] Call for feedback : AC3D loader behavior w.r.t 
texture repeat and clamping
Date: Monday 27 October 2008
From: Robert Osfield [EMAIL PROTECTED]
To: OpenSceneGraph Users osg-users@lists.openscenegraph.org

Hi John,

On Mon, Oct 27, 2008 at 4:07 PM, John Cummings [EMAIL PROTECTED] 
wrote:
 In the process of finding a small example, I've realized that indeed the
 reference document is not clear at for this feature.

The reference documents say nothing about texture wrap modes at all.
Given that this is important feature of texturing the format feels
really outdated and insufficient for the job in hand.

 I am attaching a sample model.

Thanks, data illustrating problems are virtual gold dust :-)

  It is simple a slice of earth with tiled
 images. I have also attached some screenshots- one with the old behavior in
 the latest release of OSG, one with the current SVN version, and one with a
 screeshot of AC3D (sorry about the angle on that one). You will notice that 
a
 thin slice of the desert in Africa show up in the Atlantic and vice versa.
 Clearly not correct. However, AC3D renders it that way- leading me to think
 our old custom implementation simply papered over the issue.

I suspect small OpenGL drivers changing over the last 10 years has
lead slightly different intrepretions of texcoords on fragments, such
that the 0.99 that appear in your ac file are resulting in
fragments being computed with values  1.0 despite the tex coords on
the vertices never getting greater than 1.0 or less than 0.0.  It used
to be the case that values like these would be find with a wrap value
of CLAMP, or probably even REPEAT.   These days though you have to use
CLAMP_TO_EDGE to get the intended behaviour.

My guess AC3D was developed quite a while ago, making assumptions
about CLAMP/REPEAT working fine with the near to edge tex coordinates
that you've used, but with modern drivers things are now broken
because the cards are computing the tex coords on fragment slightly
differently.

Other parts of the OSG have migrated from use CLAMP to CLAMP_TO_EDGE
over the years just because of this issue.  Things use to work fine
with CLAMP, then drivers started popping up that broke this, and
required CLAMP_TO_EDGE.  I vaguely recall that it might of been ATI
drivers that were the first to have problems w.r.t this.  I see it now
on this dataset on my Nvidia card so it's probably an industry wide
migration.

 I am going to start a discussion on the AC3D forum as well since I think
 perhaps there is a feature in AC3D that I have not discovered as yet that
 would allow this behavior. Any other AC3D'ers on this list have some 
insight?

I can't provide any insight as I'm no AC3D user.

On the OSG side I think the only thing we could do is parse the tex
coord arrays on geometries and if they fit into the 0 to 1.0 range to
use CLAMP_TO_EDGE, otherwise use REPEAT.  Perhaps an new
osgUtil::Optimizer visitor would be appropriate for handling this type
of issue.

Robert.
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Re: [osg-users] Call for feedback : AC3D loader behavior w.r.t texture repeat and clamping

2008-10-27 Thread Csaba Halász
On Mon, Oct 27, 2008 at 10:42 PM, John Cummings [EMAIL PROTECTED] wrote:
 FYI, here is the link to the discussion on the Ac3D forum:

 http://www.inivis.com/forum/showthread.php?t=5090

 It seems to be headed in the same direction as Robert's comments regarding
 keeping track of the UV ranges.

Which, unfortunately, would still break our app (flightgear), as we
have default texture coordinates within the 0,1 range, but later we
change those dynamically and assume texture repeat. Of course we could
 work around that ourselves if absolutely necessary.

-- 
Csaba
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Re: [osg-users] TrackballManipulator Question

2008-10-27 Thread Paul Martz
The TrackballManipulator does not support a zoom function. Rather, the right
mouse button pans the Camera along the view direction vector. This is a
different effect from zoom, which is a change to the field of view without
changing the Camera position. With an orthographic Projection matrix, moving
the Camera along the view direction vector obviously has no visual effect;
the Camera does not have a distance in an orthographic Projection.

So the short answer is that the TrackballManipulator doesn't support the
zoom function that you require.

Your options? Create a new Manipulator that supports zoom by changing the
field of view. To do this correctly, you need to support both changing the
field of view in a perspective Projection matrix, as well as changing the
left/right/bottom/top values for an orthographic Projection.

Hope that helps,
   -Paul


 
 Hello Everyone,
 I'm trying to use a TrackballManipulator in conjunction with 
 an orthographic camera (i.e., I'm using 
 osg::Camera::setProjectionMatrixAsOrtho()).  The problem is 
 that model scaling (with right mouse button) does not work.  
 This is because TrackballManipulator achieves a scaling 
 effect by changing the distance between the camera and the 
 model.  Unfortunately, this doesn't have the desired effect 
 when using an orthographic camera.  The model does not change 
 size at all in the display window.  Then, when I zoom far 
 enough, I start to see parts disappear due to clipping issues.
 
 Is there a way for me to use TrackballManipulator (with an 
 ortho camera) more effectively such that I don't see this 
 behavior?  If not, is there another built-in manipulator that 
 would work better for my purposes?  If not, what are your 
 other recommendations?
 
 Thank you very much!
 Rob
 
 PS - I'm using OSG v 2.2 but, from a code inspection, (I 
 think) I've determined that the behavior is the same in version 2.6. 
 

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Re: [osg-users] TrackballManipulator Question

2008-10-27 Thread Rob Radtke
Thank you Paul.  That does help me out a lot.  I have one follow-up 
question, however.  It is not clear to me how to fashion a manipulator 
so that it automatically modifies the projection matrix.  I noticed that 
osgViewer::Viewer will automatically ask its camera manipulator for the 
model view matrix when appropriate (via the 
osgGA::MatrixManipulator::get*Matrix() functions).  There doesn't seem 
to be a similar API for those two classes to pass information about the 
projection matrix, however.  Do you have any advice as to how I should 
handle this?


Thank you so much!

Rob



*Paul Martz* pmartz at skew-matrix.com 
mailto:osg-users%40lists.openscenegraph.org?Subject=Re%3A%20%5Bosg-users%5D%20TrackballManipulator%20QuestionIn-Reply-To=%3C0EB1FC78DFF641B88B4D49BBD70D473E%40Supreme%3E

/Mon Oct 27 19:26:21 PDT 2008/

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The TrackballManipulator does not support a zoom function. Rather, the right
mouse button pans the Camera along the view direction vector. This is a
different effect from zoom, which is a change to the field of view without
changing the Camera position. With an orthographic Projection matrix, moving
the Camera along the view direction vector obviously has no visual effect;
the Camera does not have a distance in an orthographic Projection.

So the short answer is that the TrackballManipulator doesn't support the
zoom function that you require.

Your options? Create a new Manipulator that supports zoom by changing the
field of view. To do this correctly, you need to support both changing the
field of view in a perspective Projection matrix, as well as changing the
left/right/bottom/top values for an orthographic Projection.

Hope that helps,
  -Paul



Rob Radtke wrote:

Hello Everyone,
I'm trying to use a TrackballManipulator in conjunction with an 
orthographic camera (i.e., I'm using 
osg::Camera::setProjectionMatrixAsOrtho()).  The problem is that model 
scaling (with right mouse button) does not work.  This is because 
TrackballManipulator achieves a scaling effect by changing the 
distance between the camera and the model.  Unfortunately, this 
doesn't have the desired effect when using an orthographic camera.  
The model does not change size at all in the display window.  Then, 
when I zoom far enough, I start to see parts disappear due to clipping 
issues.


Is there a way for me to use TrackballManipulator (with an ortho 
camera) more effectively such that I don't see this behavior?  If not, 
is there another built-in manipulator that would work better for my 
purposes?  If not, what are your other recommendations?


Thank you very much!
Rob

PS - I'm using OSG v 2.2 but, from a code inspection, (I think) I've 
determined that the behavior is the same in version 2.6. 


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[osg-users] updateCalculatedNearFar problem

2008-10-27 Thread forest37
 
 hi all,
It seems that there is a problem with 
CullVisitor::updateCalculatedNearFar,I have the code like this:
 
osgViewer::Viewer viewer;
 
class MCallBack : public osg::NodeCallback 
{
public:
 virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
 { 
 osg::PositionAttitudeTransform *pat = 
dynamic_castosg::PositionAttitudeTransform *(node);
 if( pat != NULL )
 {
 osg::Camera *camera=viewer.getCamera();
 osg::Matrixd pMatrix = camera-getViewMatrix();
 pat -setAttitude(pMatrix.getRotate());
 }
  }
};
 
osg::Node* fun()
{  
 osg::Geode* geode=new osg::Geode;
 geode-addDrawable(new osg::ShapeDrawable(new 
osg::Sphere(osg::Vec3(0,0,0),0.1)));
 
 osg::MatrixTransform *mt=new osg::MatrixTransform ;
 Matrix matrix;
 matrix.setTrans(osg::Vec3(1,0,0));
 mt-setMatrix(matrix);
 mt-addChild(geode);
 
 osg::PositionAttitudeTransform * tran = new osg::PositionAttitudeTransform;
 tran-setReferenceFrame(osg::Transform::ABSOLUTE_RF);
 tran-setPosition(osg::Vec3(5,5,0));
 tran-addChild(mt);
 tran-setUpdateCallback(new MCallBack());
 
 osg::Projection* ProjectionMatrix = new osg::Projection;
 ProjectionMatrix-setMatrix(osg::Matrix::ortho2D(0,10,0,10)); 
 ProjectionMatrix-addChild(tran);
 
 return ProjectionMatrix;
}

int _tmain(int argc, _TCHAR* argv[])
{
 osg::Node* mRoot  =fun();
 viewer.setSceneData(mRoot);
 return viewer.run();
}
 
  when i rotate the scene,the scene is culled not exactly.
  Is there a bug with osg or something wrong with my code?
 
   thanks for any advice.
 
  best regards
 
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