Re: [osg-users] Write osgAnimation callbacks into osg files - no Information available ?
Cedric Pinson wrote: Hi pp, Did you try to modify an osgAnimation example and add a osgDB::writeNodeFile of the root node to see if it writes the animation correctly in a osg file ? Cheers, Cedric Hi Cedric, yes I did, and this is exactly what is not working, and my original question. I took the example osgAninmationNode, exchanged the main procedure to write out an osg file. This was not working, no update callbacks in the file. In that file you create a class deriving from NodeCallback. And that seems to be the Problem, Instead of this I need to use a class from osgAnimation itself, otherwise the writer can't write it. Cheers, searching for the Pivot of my Soul, PP !!! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Write osgAnimation callbacks into osg files - no Information available ?
p...@graphics.cs.uni-sb.de wrote on Wednesday, October 21, 2009 8:05 AM: Cedric Pinson wrote: Hi pp, Did you try to modify an osgAnimation example and add a osgDB::writeNodeFile of the root node to see if it writes the animation correctly in a osg file ? Cheers, Cedric Hi Cedric, yes I did, and this is exactly what is not working, and my original question. I took the example osgAninmationNode, exchanged the main procedure to write out an osg file. This was not working, no update callbacks in the file. In that file you create a class deriving from NodeCallback. And that seems to be the Problem, Instead of this I need to use a class from osgAnimation itself, otherwise the writer can't write it. You can look at src/osgPlugins/osgAnimation/ReaderWriter.cpp to see how to write your own classes to .osg format, for example. HTH, -- Bryan Thrall FlightSafety International bryan.thr...@flightsafety.com ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Write osgAnimation callbacks into osg files - no Information available ?
Thrall, Bryan wrote: p...@graphics.cs.uni-sb.de wrote on Monday, October 19, 2009 3:14 AM: The reason you get no update callback in the .osg file is that osganimationnode uses a custom callback, AnimtkUpdateCallback, that the .osg writer doesn't know about. From the OpenSceneGraph-Data .osg files that have animation (such as robot.osg), it looks like osgAnimation::BasicAnimationManager is supported, so you could start with using that instead of AnimtkUpdateCallback. HTH, Had the same guess, but did not manage to get it to work. Example Code would be cool, so I could go on from this point, thx. Unfortunately, I am not familiar with osgAnimation, so I don't really know how to create one. I would recommend looking at the contents of robot.osg and comparing it to the interface of the osgAnimation classes; you could also look at the other osgAnimation examples (osganimationsolid seems to use BasicAnimationManager, for example). I tested that osgAnimation callbacks can be written to files using 'osgconv robot.osg robot2.osg' and they seemed to be written to robot2.osg just fine. Sorry I can't help further. Thx you for your affords, but unfortunately that does not solve the problem. I manage to convert an osg file with callbacks into an osg file with callbacks as well. But I can't figure out what's happening underneath the hood, so that I can not reproduce from scratch. Unfortunately there is no example which is doing this, only osg files with callbacks, or executables. But this functionality is required to write an osg Exporter with osgAnimation support. Cheers, searching for the Pivot of my Soul, PP !!! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Write osgAnimation callbacks into osg files - no Information available ?
Hi pp, Did you try to modify an osgAnimation example and add a osgDB::writeNodeFile of the root node to see if it writes the animation correctly in a osg file ? Cheers, Cedric -- +33 659 598 614 Cedric Pinson mailto:cedric.pin...@plopbyte.net http://www.plopbyte.net On Tue, 2009-10-20 at 08:30 +0200, p...@graphics.cs.uni-sb.de wrote: Thrall, Bryan wrote: p...@graphics.cs.uni-sb.de wrote on Monday, October 19, 2009 3:14 AM: The reason you get no update callback in the .osg file is that osganimationnode uses a custom callback, AnimtkUpdateCallback, that the .osg writer doesn't know about. From the OpenSceneGraph-Data .osg files that have animation (such as robot.osg), it looks like osgAnimation::BasicAnimationManager is supported, so you could start with using that instead of AnimtkUpdateCallback. HTH, Had the same guess, but did not manage to get it to work. Example Code would be cool, so I could go on from this point, thx. Unfortunately, I am not familiar with osgAnimation, so I don't really know how to create one. I would recommend looking at the contents of robot.osg and comparing it to the interface of the osgAnimation classes; you could also look at the other osgAnimation examples (osganimationsolid seems to use BasicAnimationManager, for example). I tested that osgAnimation callbacks can be written to files using 'osgconv robot.osg robot2.osg' and they seemed to be written to robot2.osg just fine. Sorry I can't help further. Thx you for your affords, but unfortunately that does not solve the problem. I manage to convert an osg file with callbacks into an osg file with callbacks as well. But I can't figure out what's happening underneath the hood, so that I can not reproduce from scratch. Unfortunately there is no example which is doing this, only osg files with callbacks, or executables. But this functionality is required to write an osg Exporter with osgAnimation support. Cheers, searching for the Pivot of my Soul, PP !!! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org signature.asc Description: This is a digitally signed message part ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Write osgAnimation callbacks into osg files - no Information available ?
The reason you get no update callback in the .osg file is that osganimationnode uses a custom callback, AnimtkUpdateCallback, that the .osg writer doesn't know about. From the OpenSceneGraph-Data .osg files that have animation (such as robot.osg), it looks like osgAnimation::BasicAnimationManager is supported, so you could start with using that instead of AnimtkUpdateCallback. HTH, Had the same guess, but did not manage to get it to work. Example Code would be cool, so I could go on from this point, thx. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Write osgAnimation callbacks into osg files - no Information available ?
Cedric Pinson wrote: Hi pp, What is the function setupAnimtkNode ? and which version of OpenSceneGraph are you using ? Hi Cedric, we always use the current stable release, currently osg 2.8.2. I am also referring the example osganimationnode from this version, so I am using class AnimtkUpdateCallback : public osg::NodeCallback without change. I tried to derive from osgAnimation::BasicAnimationManager but did not get it working. Cheers, searching for the Pivot of my Soul, PP !!! ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Write osgAnimation callbacks into osg files - no Information available ?
p...@graphics.cs.uni-sb.de wrote on Monday, October 19, 2009 3:14 AM: The reason you get no update callback in the .osg file is that osganimationnode uses a custom callback, AnimtkUpdateCallback, that the .osg writer doesn't know about. From the OpenSceneGraph-Data .osg files that have animation (such as robot.osg), it looks like osgAnimation::BasicAnimationManager is supported, so you could start with using that instead of AnimtkUpdateCallback. HTH, Had the same guess, but did not manage to get it to work. Example Code would be cool, so I could go on from this point, thx. Unfortunately, I am not familiar with osgAnimation, so I don't really know how to create one. I would recommend looking at the contents of robot.osg and comparing it to the interface of the osgAnimation classes; you could also look at the other osgAnimation examples (osganimationsolid seems to use BasicAnimationManager, for example). I tested that osgAnimation callbacks can be written to files using 'osgconv robot.osg robot2.osg' and they seemed to be written to robot2.osg just fine. Sorry I can't help further. -- Bryan Thrall FlightSafety International bryan.thr...@flightsafety.com ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Write osgAnimation callbacks into osg files - no Information available ?
Hi pp,
What is the function setupAnimtkNode ? and which version of
OpenSceneGraph are you using ?
Cheers,
Cedric
--
+33 659 598 614 Cedric Pinson mailto:cedric.pin...@plopbyte.net
http://www.plopbyte.net
On Fri, 2009-10-16 at 11:31 +0200, p...@graphics.cs.uni-sb.de wrote:
Please, anybody, point me to a piece on informationt, thx.
I try to write osgAnimation Callbacks into an osg file but don't get it to
work.
All available osgAnimation examples create executables, but no osg files.
When I use osgDB::writeNodeFile( *someScene , someScene.osg ) ;
instead of creating a viewer, the code block between UpdateCallbacks
parenthesis stays empty in the resulting osg file, but this is where I
would expect keyframe and channel data. The Blender Exporter is also not
helpful, as it uses its own mechanism to write out osg files through
Python.
Can anybody explain / post / create an example that writes a simple
osgAnimation into an osg file, please or point to information on that ?
Problem reconstruction :
osgAnimation Example osganimationnode, exchange the main proc. Instead
of creating a viewer write out a file, as this.
int main( int , char** )
{
osg::ref_ptr osg::Group root = new osg::Group ;
root-setInitialBound(osg::BoundingSphere(osg::Vec3(10,0,10), 30));
root-addChild(createAxis());
osg::MatrixTransform* node = setupAnimtkNode();
root-addChild(node);
if ( !root.valid() )
osg::notify( osg::FATAL ) Failed in createSceneGraph() !
std::endl ;
bool arg = false;
bool result = osgDB::writeObjectFile( * ( root.get() ) ,
animNode.osg ) ;
if ( !result )
osg::notify( osg::FATAL ) Failed in osgDB::writeNodeFile()
! std::endl ;
}
Cheers, searching for the Pivot of my Soul, PP !!!
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Re: [osg-users] Write osgAnimation callbacks into osg files - no Information available ?
p...@graphics.cs.uni-sb.de wrote on Friday, October 16, 2009 4:32 AM:
Problem reconstruction :
osgAnimation Example osganimationnode, exchange the main proc. Instead
of creating a viewer write out a file, as this.
int main( int , char** )
{
osg::ref_ptr osg::Group root = new osg::Group ;
root-setInitialBound(osg::BoundingSphere(osg::Vec3(10,0,10),
30));
root-addChild(createAxis());
osg::MatrixTransform* node = setupAnimtkNode();
root-addChild(node);
if ( !root.valid() )
osg::notify( osg::FATAL ) Failed in createSceneGraph() !
std::endl ;
bool arg = false;
bool result = osgDB::writeObjectFile( * ( root.get() ) ,
animNode.osg ) ;
if ( !result )
osg::notify( osg::FATAL ) Failed in osgDB::writeNodeFile()
! std::endl ;
}
The reason you get no update callback in the .osg file is that
osganimationnode uses a custom callback, AnimtkUpdateCallback, that the
.osg writer doesn't know about.
From the OpenSceneGraph-Data .osg files that have animation (such as
robot.osg), it looks like osgAnimation::BasicAnimationManager is
supported, so you could start with using that instead of
AnimtkUpdateCallback.
HTH,
--
Bryan Thrall
FlightSafety International
bryan.thr...@flightsafety.com
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