Re: [osg-users] collada animation?
Hi Abe, Could you be more specific what you mean by animation. Different plugins support different classes of animation. Robert. On 9/29/07, Abe Stephens [EMAIL PROTECTED] wrote: Hi, Does the OSG collada1.4 plugin support animation? I'm attempting to bring simple pre-baked animations from a tool (blender/maya) into the OSG runtime. I've also tried using a .osg exporter from blender with mixed results. Is there another tool chain into OSG I should try? Thanks- Abe ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgmanipulator example questions
-- Forwarded message --
From: sicong he [EMAIL PROTECTED]
Date: 2007-9-10 下午6:49
Subject: Re: [osg-users] osgmanipulator example questions
To: Public OpenSceneGraph Users discussion list.
osg-users@lists.openscenegraph.org
I tried by best and I found a way to solve thi problem.
The idea is:
First see the scene structure:
SceneRoot
Teapot01 Box01
Teapot01 and Box01 are the children of SceneRoot.
When I select Teapot01, the osgManipulator::selection (I call it in my
program Selection) set Teapot01 as one if its children.
Then I find all the parents of Teapot01, in this example, is SceneRoot and
Selection.
Then I replace the Teapot01 child of SceneRoot with Selection. Now the scene
structure is:
SceneRoot
Selection Box01
Teapot01
And then I connect the dragger with Selection. All things go right.
When Box01 is selected, I replace the Selection child of SceneRoot with
Teapot01 and calculate the matrix of Teapot01.
The matrix of Selection is also reset. Then repeat the above steps to make
Box01 dragable.
My demo program and test scene is attached. If you have better ideas, please
tell me! Thanks in advanced!
2007/9/10, David Callu [EMAIL PROTECTED]:
Hi,
Can you send the osgmanipulator.cpp modified and your scene to test?
David Callu
2007/9/10, hesicong2006 [EMAIL PROTECTED] :
I know why. root should add an Child include the scene.
But another question. I can drag the Teapot01, but the whole scene now
has two Teapot. Then how can I fix it?
hesicong2006 wrote:
Hi, Robert
Someday before I asked a question about drag object in OSG and you
told
me to see osgmanipulator example. It's great.
I tried to modify it as I want to move one object in the scene but the
whole scene. I tried to do this in addDraggerToScene function:
osg::Node* addDraggerToScene(osg::Node* scene,
osgManipulator::CommandManager* cmdMgr, const std::string name)
{
scene-getOrCreateStateSet()-setMode(GL_NORMALIZE,
osg::StateAttribute::ON);
osg::Node* selectedObject=FindByName(Teapot01);
osgManipulator::Selection* selection = new
osgManipulator::Selection;
selection-addChild(selectedObject);
osgManipulator::Dragger* dragger = createDragger(name);
osg::Group* root = new osg::Group;
root-addChild(dragger);
root-addChild(selection);
root-addChild(createHUD());
float scale = selectedObject-getBound().radius() * 1.6;
dragger-setMatrix(osg::Matrix::scale(scale, scale, scale) *
osg::Matrix::translate(selectedObject-getBound().center()));
cmdMgr-connect(*dragger, *selection);
return root;
}
And here my scene has two objects, one teapot, one box. But when I run
the program, I see only the Teapot01 which really can drag and move,
but the box is lost!
I don't know how to only move one object in the scene. Please give me
some ideas. Thanks.
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Re: [osg-users] osgDB::writeNodeFile -- no Options?
Hi Robert -- I'm getting ready to make this change, and I've noticed that I need to change the Registry::write*() interfaces. If I change them to match the read*() functions, then this will not be backwards compatible. E.g., anyone who currently calls: osgDB::Registry::instance()-writeNode( rootNode, fName ); ...will now have to call: osgDB::Registry::instance()-writeNode( rootNode, fName, osgDB::Registry::instance()-getOptions() ); In the core distribution, at least osgconv requires this change (haven't checked the examples yet but will soon). Outside of core OSG, this could affect lots of existing code. I'm assuming the same change was made previously to the read*() interface, so my intent is to go ahead with this incompatible change, unless you advise otherwise. Thanks, Paul Martz Skew Matrix Software LLC http://www.skew-matrix.com 303 859 9466 HI Paul, Your analysis is correct, the ReaderWriter::Options post dates the original read/write*File methods. In the case of read*File the Options was added as it was required by users. No one until has piped up and pointed at the lack of Options parameter in the the write*File() methods. Feel free to add them. Robert. On 9/19/07, Paul Martz [EMAIL PROTECTED] wrote: Hi Robert -- A couple questions on passing Options into the osgDB read/write methods. First, the write methods (e.g., writeNodeFile, writeImageFile, etc) don't take ReaderWriter::Options as a parameter. Instead, they implicitly pass the osgDB's _options member variable to the plugin. Is there a design reason for this to be different from the analogous read interface? Or, more to the point, if I added Options as a command line parameter to the write methods, would you reject such a submission for any a priori reason? Second, looks like the read interface has two methods each for readNodeFile, readImageFile, etc., one taking Options the other not (and getting it from the registry). I assume this was done for historical reasons to preserve backwards compatibility? The non-Options interface was first, and the interface with Options came along later? Of course, I'd have to do essentially the same thing if I were to modify the write interface to take Options. (Stumbling across all sorts of fun stuff as I try to create this OpenFlight exporter. :-) Thanks, Paul Martz Skew Matrix Software LLC http://www.skew-matrix.com 303 859 9466 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph. org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-opensce negraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgDB::writeNodeFile -- no Options?
Hi Robert -- A couple questions on passing Options into the osgDB read/write methods. First, the write methods (e.g., writeNodeFile, writeImageFile, etc) don't take ReaderWriter::Options as a parameter. Instead, they implicitly pass the osgDB's _options member variable to the plugin. Is there a design reason for this to be different from the analogous read interface? Or, more to the point, if I added Options as a command line parameter to the write methods, would you reject such a submission for any a priori reason? Second, looks like the read interface has two methods each for readNodeFile, readImageFile, etc., one taking Options the other not (and getting it from the registry). I assume this was done for historical reasons to preserve backwards compatibility? The non-Options interface was first, and the interface with Options came along later? Of course, I'd have to do essentially the same thing if I were to modify the write interface to take Options. (Stumbling across all sorts of fun stuff as I try to create this OpenFlight exporter. :-) Thanks, Paul Martz Skew Matrix Software LLC http://www.skew-matrix.com http://www.skew-matrix.com/ 303 859 9466 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Releasing file handles in osgDB
Hi Antoine, Is it just the OSGA plugin that you are having an issue with it holding a file handle? If so you could try calll close() on the Archive the the plugin has loaded - the Archive will be cached in the Registry. Or you could try the Regisytr::clearArchiveCache() method. Robert. On 9/30/07, Antoine Hue [EMAIL PROTECTED] wrote: Hello, I want to overwrite a .osga file from a child process while the same file is shown in the main process's viewer. At the beginning I did it brutal: rewrite the file without checking. It worked OK for Linux but was crashing on Windows in case of LODed scene graph within the .osga. I have added a temporary/shadow file and it works still under Linux but not under Windows. The only case it works is when the file does not already exist. I suspect that Windows file protection is sticking again: Cannot delete file XXX since it is used by another application.. I have removed (many frames ahead) the top node from the scene graph of the main viewer but still cannot overwrite the file. Is there a way to check or force that osgDB is releasing completely the file handle ? Thanks in advance, Antoine ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Please test SVN version of OpenSceneGraph
Hi All, I'll be making the 2.1.13 dev release tomorrow morning, so would very much appreciate some testing of the SVN version on different platforms before then to make sure we have a stable point to tab the release. I would also like to 2.2 out pretty sharp. If possible even Thursday this week. This will require a couple more dev releases this week and lots of build/runtime testing. In general I believe the recent 2.1.x look pretty stable, so hopefully this isn't too much of a tall order. Thanks in advance for your help, Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Please test SVN version of OpenSceneGraph
A warning for those of you who missed the discussion... The Registry::write*() interface now takes an osgDB::Options parameter. If you call this directly, you'll need to change your code. Best way is to use the osgDB::write*File() functions. Sorry for any inconvenience. -Paul Hi All, I'll be making the 2.1.13 dev release tomorrow morning, so would very much appreciate some testing of the SVN version on different platforms before then to make sure we have a stable point to tab the release. I would also like to 2.2 out pretty sharp. If possible even Thursday this week. This will require a couple more dev releases this week and lots of build/runtime testing. In general I believe the recent 2.1.x look pretty stable, so hopefully this isn't too much of a tall order. Thanks in advance for your help, Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-opensce negraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] OpenSceneGraph-2.1.1 dev Examples
Hi Jason, You should generate the build system from the root OpenSceneGraph/CMakeLists.txt file rather local directory ones. Robert. On 8/1/07, Fry, Jason (UK) [EMAIL PROTECTED] wrote: Hello, I am trying to build the examples for OpenSceneGraph. I have been trying to utilise the Cmake utility to build the examples for Windows. But I get the error message : ../osgstaticviewer/CMakeLists.txt:7:Unknown Cmake command SETUP_EXAMPLE. This can't be true, as I would have thought it would of been brought to somebodies attention by now. Anyone know what is going on here? Any help would be greatly appreciated jason This email and any attachments are confidential to the intended recipient and may also be privileged. If you are not the intended recipient please delete it from your system and notify the sender. You should not copy it or use it for any purpose nor disclose or distribute its contents to any other person. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Trackball and view question
Hi Bill, The camera manipulators role is to modifying the view matrix so I'm a bit perplexed that you are suprised by this. Also please considering move from SimpleViewer up to osgViewer::Viewer working as an embedded viewer in 2.x rather than using SimpleViewer as it only existed for a short while and has been totally superseded. Robert. On 9/18/07, Poirier, Guillaume [EMAIL PROTECTED] wrote: Hello everyone, I am using a SimpleViewer. I set up a post draw callback on its main camera. In it I read the camera eye, center, and up vectors. Initially, this give me (0, 0, 0), (0, 0, -1), and (0, 1, 0) respectively. This is what I expect and it gives me a particular view of my scene. Now I add a trackball manipulator to the main camera and set up the view similar to what I had previously. When I read back the data it is quite different. I would have expected the same camera position / orientation than before since what I see is similar. Unless the trackball affects the model position / orientation and not just the view ? How can I use a trackball and read back in the post draw callback the values I want ? sincerely, Bill ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Please test SVN version of OpenSceneGraph
Hello Robert, I'll be making the 2.1.13 dev release tomorrow morning, so would very much appreciate some testing of the SVN version on different platforms before then to make sure we have a stable point to tab the release. Everything seems fine on my machine at home: WinXP SP2, Visual C++ 2005 Express. Compiling on Linux (FC6) at school as I type this, will report once it's done. J-S -- __ Jean-Sebastien Guay [EMAIL PROTECTED] http://whitestar02.webhop.org/ This message was sent using IMP, the Internet Messaging Program. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Please test SVN version of OpenSceneGraph
Robert Osfield wrote: #define log2(x) (log(x) / M_LOG2_E) #define log2f(x) (logf(x) / (float) M_LOG2_E) That looks like it might well be the proplem. Added a if #ifndef log2 might be what is required around the include/osg/Math definition. That got it to compile. I also still have to add the flags: -DWIN32 -DNOMINMAX -W -Wall -mnop-fun-dllimport -DOSG_LIBRARY to CMAKE_CXX_FLAGS - tried only using some parts but ultimately used all the flags and added to CMAKE_C_FLAGS too. This change is required for some reason to get Tessellator to compile and ignore those GLvoid conversion errors but that it probably all it is doing is ignoring them and allowing Tessellator to compile. I also had to make the change for wsock32.lib to wsock32.a in CMakeLists.txt in the root of the svn tree so the compile would find the correct library in Cygwin. I also had to make a change for osgviewerMFC in the examples/CMakelists.txt so it would not build and had to remove the references for the wxWidgets (that whole routine could be nicer). Most of the above I think I have reported before and OSG did build an install but I guess still not enough thread changes in Cygwin as osgconv still hangs on exit and has to be killed. bk ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
