Re: [osg-users] KeyboardEventHandler interferes with selection
The KeySwitchMatrixManipulator only handles events that havent' already been handled, and in your case you are signalling that you've handled the event by returning true from your own handler. Just return false and the key switch handler with work with it just fine. Many thanks, now it works fine! -- Andreas Richter ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] picking with wireframe...
Hi everyone... just a few questions on the picking mechanism: Imagine I want to pick objects in the scene, but some of them are in wireframe mode... in this case I would like the object to be picked only if I'm really on an edge (or maybe very close to an edge...). This doesn't seem to be the default picking result obtained with something like view-computeIntersections(...) as clicking in the middle of a wireframe rendered face still give a collision. Does anyany have any suggestion on how this would be best achieved ? (Personaly I was thinking about making calculations using the local hit point and the vertices of the colliding face to see how close the hit point is from a given edge) Manu. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] How to enable the auto-rotate affect on a TrackballManipulator, ( win32mfc )
Hi, Everyone:
I am a total begginer user of OSG for 3 days.
How can i enable the auto-rotate effect on a TrackballManipulator?
I have attached a osgViewer::viewer to a window on Win32.( windiow+MFC
) by following code.
*
viewer = new osgViewer::Viewer;
osg::ref_ptrosg::GraphicsContext::Traits traits = new
osg::GraphicsContext::Traits;
traits-x = 0;
traits-y = 0;
traits-width = rc.Width();
traits-height = rc.Height();
.
/
osg::ref_ptrosgViewer::GraphicsWindowWin32::WindowData wdata = new
osgViewer::GraphicsWindowWin32::WindowData( GetSafeHwnd() );
traits-inheritedWindowData = wdata.get();
osg::ref_ptrosg::GraphicsContext gc =
osg::GraphicsContext::createGraphicsContext(traits.get());
if ( gc.valid() ) {
viewer-getCamera()-setGraphicsContext(gc.get());
viewer-getCamera()-setViewport(new osg::Viewport(0,0, traits-width,
traits-height));
}
///
viewer-setSceneData( createGeode().get() );
viewer-setCameraManipulator(new osgGA::TrackballManipulator);
viewer-addEventHandler(new osgViewer::StatsHandler);
viewer-realize();
//
*
but I cannot enable the Node viewer to auto-rotate just as the
demos in the tutorial on site of www.openscenegraph.orgon the events of
mouseButtonPress(x,y,1) or mouseButtonPress(x,y,3) and
mouseButtonRelease(x,y,1) or mouseButtonRelease(x,y,3).
what's the problem in the code? Thanks!
xiaodong
--
xiaodong Wu.
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Re: [osg-users] osgdot - a tool to generate a picture ofascenegraph'sstructure
Hello Alberto, Alberto Luaces wrote: It doesn't compile out of the box on 64bit, because of the casts from pointer to 'unsigned int'. Changing those casts to 'unsigned long' works, but it is an ugly hack. I could not come up with a better way to store an object's identity. The actual memory location where a node is stored is about the only fixed reference to it. Perhaps defining a pointer type with #ifdef 32 bit typedef unsigned int pointer; #elif 64 typedef unsigned long int pointer; #endif and then using the pointer type everywhere is a better solution. Paul El Thursday 15 November 2007 18:14:23 Mike Weiblen escribió: whups, moved it to http://osgtoy.svn.sourceforge.net/viewvc/osgtoy/osgtoy/trunk/application s/osgdot/ -- mew -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Weiblen Sent: Thursday, November 15, 2007 10:58 AM To: OpenSceneGraph Users Subject: Re: [osg-users] osgdot - a tool to generate a picture ofascenegraph'sstructure -Original Message- On Nov 15, 2007 4:35 PM, Mike Weiblen [EMAIL PROTECTED] wrote: Very cool! Maybe whip up a plugin Writer wrapper around it, permitting osgconv cow.osg cow.dot Then, what about enabling that osgdb_dot.dll plugin as a Reader as well? ;-O I love the sound of some one volunteering :-D Heh, more than you think: I put the source in the osgToy SVN for safekeeping and further refinement. I'm glad to move it to OSG core SVN later if you wish. See http://osgtoy.svn.sourceforge.net/viewvc/osgtoy/osgtoy/trunk/s rc/osgToy/ osgdot.cpp In the mean time, I'm glad to accept code submissions. Pls submit them via the osgToy SourceForge Tracker http://sourceforge.net/tracker/?group_id=139833 cheers -- mew ___ 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] How to get the near(or far) plane
Hi Andreas, viewer-getCamer()-getProjectionMatrix*() methods will give you the projection matrix/and its settings. Robert. On Nov 22, 2007 10:50 AM, [EMAIL PROTECTED] wrote: Hello. I need the near plane of the osgViewer::Viewer camera. The FAQ says: Q 21. If I let OpenSceneGraph calculate my near and far clipping planes, how do I get them? A: This info is available through the cull visitor, so: sceneView-getCullVisitor()-getCalculatedNearPlane(); sceneView-getCullVisitor()-getCalculatedFarPlane(); Then I searched the mail list archive and found this in a respons to a question about how to retrive the SceneView in osg 2.0: However, the SceneView is not accessible to osgViewer-based apps. osgViewer treats SceneView as an internal object, part of the implementation, which might go away in the future. The question is how can i get the near plane when using osg::Viewer? Can I use osg::Camera::getProjectionMatrixAsPerspective(...)? Andreas Lindmark = BLT Roll-Out Garage Flooring(R) Beautifies the garage in minutes and protects the floor for years. http://a8-asy.a8ww.net/a8-ads/adftrclick?redirectid=46742104b51b3787b43a47c84733c172 -- Powered by Outblaze ___ 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] How to get the near(or far) plane
Hello. I need the near plane of the osgViewer::Viewer camera. The FAQ says: Q 21. If I let OpenSceneGraph calculate my near and far clipping planes, how do I get them? A: This info is available through the cull visitor, so: sceneView-getCullVisitor()-getCalculatedNearPlane(); sceneView-getCullVisitor()-getCalculatedFarPlane(); Then I searched the mail list archive and found this in a respons to a question about how to retrive the SceneView in osg 2.0: However, the SceneView is not accessible to osgViewer-based apps. osgViewer treats SceneView as an internal object, part of the implementation, which might go away in the future. The question is how can i get the near plane when using osg::Viewer? Can I use osg::Camera::getProjectionMatrixAsPerspective(...)? Andreas Lindmark = BLT Roll-Out Garage Flooring® Beautifies the garage in minutes and protects the floor for years. http://a8-asy.a8ww.net/a8-ads/adftrclick?redirectid=46742104b51b3787b43a47c84733c172 -- Powered by Outblaze ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] How to enable the auto-rotate affect on a TrackballManipulator, ( win32mfc )
Hi. Robert.
Thanks for ur respond, I have read the code osgAnimation. I used some
confused word to describe my problem. ( :( bad English, my native laguage is
Chinese ).
What i want to know is that how the camera can go along its latest
way(or path),
For example, I drag the focus of camera ( trackball-manipulator ) from
left to right on a window, then the camera should go around the trackball
of the scene from a position to anothion. when I release the button, the
camera can continue along its latest way( or path ) at a speed. when i drag
from right to left, the camera go reversely and can go along with its new
path.
I failed to enable the camera continue along its latest way. when i
release the button, the scene ceased, too.
Thanks.
xiaodong
On Nov 22, 2007 5:42 PM, Robert Osfield [EMAIL PROTECTED] wrote:
Hi Xiaodong,
The TrackballManipulator is just for user interaction with the camera
position, its does support throwing which is activated by the user
releasing a mouse button while still moving the mouse. It sounds like
this is not what you want though.
To general rotate objects in the scene the way to do is to place a
Transform node of some type (i.e.
osg::MatrixTransform/PositionAttitudeTransform) and then attached an
osg::AnimationPathCallback to it, or to attach a
osgUtil::TransformCallback the later is deprecated though. With an
AnimationPath you can define any combination of scaling, rotation and
translation. Have a look at the osganimation example.
Robert.
On Nov 22, 2007 9:34 AM, Wu Xiaodong [EMAIL PROTECTED] wrote:
Hi, Everyone:
I am a total begginer user of OSG for 3 days.
How can i enable the auto-rotate effect on a TrackballManipulator?
I have attached a osgViewer::viewer to a window on Win32.(
windiow+MFC
) by following code.
viewer = new osgViewer::Viewer;
osg::ref_ptrosg::GraphicsContext::Traits traits = new
osg::GraphicsContext::Traits;
traits-x = 0;
traits-y = 0;
traits-width = rc.Width();
traits-height = rc.Height();
.
/
osg::ref_ptrosgViewer::GraphicsWindowWin32::WindowData wdata = new
osgViewer::GraphicsWindowWin32::WindowData( GetSafeHwnd() );
traits-inheritedWindowData = wdata.get();
osg::ref_ptrosg::GraphicsContext gc =
osg::GraphicsContext::createGraphicsContext( traits.get());
if ( gc.valid() ) {
viewer-getCamera()-setGraphicsContext( gc.get());
viewer-getCamera()-setViewport(new osg::Viewport(0,0, traits-width,
traits-height));
}
///
viewer-setSceneData( createGeode().get() );
viewer-setCameraManipulator(new osgGA::TrackballManipulator);
viewer-addEventHandler(new osgViewer::StatsHandler);
viewer-realize();
//
but I cannot enable the Node viewer to auto-rotate just as the
demos in the tutorial on site of www.openscenegraph.orgon the events
of
mouseButtonPress(x,y,1) or mouseButtonPress(x,y,3) and
mouseButtonRelease(x,y,1) or mouseButtonRelease(x,y,3).
what's the problem in the code? Thanks!
xiaodong
--
xiaodong Wu.
___
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http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
___
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[osg-users] non-writable object....
It's me again :-) Just a simple question again, concerning the plugins this time: suppose I have a graph with some kind of nodes that should NOT be written to file when I save the graph... I guess the only solution is to remove those nodes before writing the file no ? I mean, there is no way to remove a child in the writing process or to write an empty object in the file, I guess ? Manu. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] nodemask and traversals
hi again, Just something about the nodemasks: suppose i want to stop drawing an object, all the examples I've seen say claeraly that I have to set node-setNodeMask(0x0), but suppose now that I really want to change only one bit in this mask: where should I look for the bit field against which this mask is checked ? (and the overriding bit field I guess...) I though only the first bit was checked, but it is not the case, as an object with the mask 0x0010 is also drawn for instance... Manu. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] nodemask and traversals
Hi Manu, You need to match the NodeMask bits to the TraversalMask bits for each of the NodeVisitors. The osg::Camera has setCullMask method that you can use for the case of the cull traversal. Note Camera inherits from osg::CullSettings which is where setCullMask is inherited from. Robert. On Nov 22, 2007 11:54 AM, Emmanuel Roche [EMAIL PROTECTED] wrote: hi again, Just something about the nodemasks: suppose i want to stop drawing an object, all the examples I've seen say claeraly that I have to set node-setNodeMask(0x0), but suppose now that I really want to change only one bit in this mask: where should I look for the bit field against which this mask is checked ? (and the overriding bit field I guess...) I though only the first bit was checked, but it is not the case, as an object with the mask 0x0010 is also drawn for instance... Manu. ___ 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] non-writable object....
Hi Manu, The .osg and .ive plugins don't have any support for switch off the writing of specific nodes. Robert. On Nov 22, 2007 11:59 AM, Emmanuel Roche [EMAIL PROTECTED] wrote: It's me again :-) Just a simple question again, concerning the plugins this time: suppose I have a graph with some kind of nodes that should NOT be written to file when I save the graph... I guess the only solution is to remove those nodes before writing the file no ? I mean, there is no way to remove a child in the writing process or to write an empty object in the file, I guess ? Manu. ___ 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] nodemask and traversals
The nodeMask is checked against the cameras cullMask (see osg::CullSettings::setCullMask()) . Any bit set in both masks will result in the node been drawn. Ralph Emmanuel Roche schrieb: hi again, Just something about the nodemasks: suppose i want to stop drawing an object, all the examples I've seen say claeraly that I have to set node-setNodeMask(0x0), but suppose now that I really want to change only one bit in this mask: where should I look for the bit field against which this mask is checked ? (and the overriding bit field I guess...) I though only the first bit was checked, but it is not the case, as an object with the mask 0x0010 is also drawn for instance... Manu. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] non-writable object....
Could you use a derived class without read/write support? Ralph Robert Osfield schrieb: Hi Manu, The .osg and .ive plugins don't have any support for switch off the writing of specific nodes. Robert. On Nov 22, 2007 11:59 AM, Emmanuel Roche [EMAIL PROTECTED] wrote: It's me again :-) Just a simple question again, concerning the plugins this time: suppose I have a graph with some kind of nodes that should NOT be written to file when I save the graph... I guess the only solution is to remove those nodes before writing the file no ? I mean, there is no way to remove a child in the writing process or to write an empty object in the file, I guess ? Manu. ___ 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] How to enable the auto-rotate affect on a TrackballManipulator, ( win32mfc )
Hi Xiaodong,
Is just that you can't throw i.e. when you release the mouse whilst
moving the camera just stops rather continuing with the same motion?
Robert.
On Nov 22, 2007 11:45 AM, Wu Xiaodong [EMAIL PROTECTED] wrote:
Hi. Robert.
Thanks for ur respond, I have read the code osgAnimation. I used some
confused word to describe my problem. ( :( bad English, my native laguage is
Chinese ).
What i want to know is that how the camera can go along its latest
way(or path),
For example, I drag the focus of camera ( trackball-manipulator ) from
left to right on a window, then the camera should go around the trackball
of the scene from a position to anothion. when I release the button, the
camera can continue along its latest way( or path ) at a speed. when i drag
from right to left, the camera go reversely and can go along with its new
path.
I failed to enable the camera continue along its latest way. when i
release the button, the scene ceased, too.
Thanks.
xiaodong
On Nov 22, 2007 5:42 PM, Robert Osfield [EMAIL PROTECTED] wrote:
Hi Xiaodong,
The TrackballManipulator is just for user interaction with the camera
position, its does support throwing which is activated by the user
releasing a mouse button while still moving the mouse. It sounds like
this is not what you want though.
To general rotate objects in the scene the way to do is to place a
Transform node of some type (i.e.
osg::MatrixTransform/PositionAttitudeTransform) and then attached an
osg::AnimationPathCallback to it, or to attach a
osgUtil::TransformCallback the later is deprecated though. With an
AnimationPath you can define any combination of scaling, rotation and
translation. Have a look at the osganimation example.
Robert.
On Nov 22, 2007 9:34 AM, Wu Xiaodong [EMAIL PROTECTED] wrote:
Hi, Everyone:
I am a total begginer user of OSG for 3 days.
How can i enable the auto-rotate effect on a TrackballManipulator?
I have attached a osgViewer::viewer to a window on Win32.(
windiow+MFC
) by following code.
viewer = new osgViewer::Viewer;
osg::ref_ptrosg::GraphicsContext::Traits traits = new
osg::GraphicsContext::Traits;
traits-x = 0;
traits-y = 0;
traits-width = rc.Width();
traits-height = rc.Height();
.
/
osg::ref_ptrosgViewer::GraphicsWindowWin32::WindowData wdata = new
osgViewer::GraphicsWindowWin32::WindowData( GetSafeHwnd() );
traits-inheritedWindowData = wdata.get();
osg::ref_ptrosg::GraphicsContext gc =
osg::GraphicsContext::createGraphicsContext( traits.get());
if ( gc.valid() ) {
viewer-getCamera()-setGraphicsContext( gc.get());
viewer-getCamera()-setViewport(new osg::Viewport(0,0, traits-width,
traits-height));
}
///
viewer-setSceneData( createGeode().get() );
viewer-setCameraManipulator(new osgGA::TrackballManipulator);
viewer-addEventHandler(new osgViewer::StatsHandler);
viewer-realize();
//
but I cannot enable the Node viewer to auto-rotate just as the
demos in the tutorial on site of www.openscenegraph.orgon the events
of
mouseButtonPress(x,y,1) or mouseButtonPress(x,y,3) and
mouseButtonRelease(x,y,1) or mouseButtonRelease(x,y,3).
what's the problem in the code? Thanks!
xiaodong
--
xiaodong Wu.
___
osg-users mailing list
osg-users@lists.openscenegraph.org
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[osg-users] OSG 2.2.0 on Windows ( Could not find plugin )
Hello, i have install on my pc with Windwos XP SP2 osg2.0.0 (Win32 Binaries Zip file) This version is run ok. Now i have installed version osg2.2.0 (Win32 Binaries Zip file and I tried even Win32 Binaries Installer), and unistalled osg2.0.0, but when i run osgviewer cow.osg this is the response: Warning: Could not find plugin to read objects from file cow.osg. osgviewer: No data loaded These are the environment variables that i have set: set OSG_ROOT=C:\OpenSceneGraph set OSG_FILE_PATH=%OSG_ROOT%\data;%OSG_ROOT%\data\Images;%OSG_ROOT%\data\fonts set OSG_LIBRARY_PATH=C:\OpenSceneGraph\bin\osgPlugins-2.2.0;C:\OpenSceneGraph\bin; set PATH=C:\OpenSceneGraph\bin;C:\OpenSceneGraph\bin\osgPlugins-2.2.0; I have run the example also with the set OSG_NOTIFY_LEVEL=DEBUG and this is the response: C:\OpenSceneGraph\binosgviewer cow.osg GraphicsContext::setWindowingSystemInterface() 00FCE2B8 10175E00 CullSettings::readEnvironmentalVariables() Render::Render() 00FC30E8 CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() _availableQueue.size()=2 DriveManipulator::_height set to ==1.5 CullSettings::readEnvironmentalVariables() Render::Render() 014D7930 CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() _availableQueue.size()=2 CullSettings::readEnvironmentalVariables() Render::Render() 014DA038 CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() CullSettings::readEnvironmentalVariables() _availableQueue.size()=2 itr='C:\OpenSceneGraph\bin\osgPlugins-2.2.0' FindFileInPath() : trying C:\OpenSceneGraph\bin\osgPlugins-2.2.0\osgPlugins-2.2. 0\osgdb_osg.dll ... itr='C:\OpenSceneGraph\bin' FindFileInPath() : trying C:\OpenSceneGraph\bin\osgPlugins-2.2.0\osgdb_osg.dll . .. FindFileInPath() : USING C:\OpenSceneGraph\bin\osgPlugins-2.2.0\osgdb_osg.dll DynamicLibrary::failed loading osgPlugins-2.2.0/osgdb_osg.dll Warning: Could not find plugin to read objects from file cow.osg. osgviewer: No data loaded Viewer::~Viewer():: start destructor getThreads = 0 Viewer::~Viewer() end destrcutor getThreads = 0 Destructing osgViewer::View Render::~Render() 014D7930 Render::~Render() 014DA038 Destructing osg::View Render::~Render() 00FC30E8 Done destructing osg::View GraphicsContext::setWindowingSystemInterface() 10175E00 This message for me is strange: DynamicLibrary::failed loading osgPlugins-2.2.0/osgdb_osg.dll There are problems with version osg2.2.0 on windwos or i have commit errors? Regards -- Samuele Pierattini ENEA FIM-INFOGER-BOL E-Mail [EMAIL PROTECTED] ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Creating shapes using Geometry
Hi, thanks for the interest in helping. But the thing is: I need these shapes to be created from the osg::Geometry class, as a matter of compatibility with another class. Do you know how to create the specific shapes I told you about (sphere, cylinder and box)? Thanks. Renan M Z Mendes ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] screen capture with multiple cameras
I want to capture my OSG screen and dump it to a jpeg or png file. My understanding is to attach a callback to the main osgViewer camera and perform a osg::Image::readPixels(...) from within the callback. That works in the simple case. But, if I have a basic HUD that is itself a camera alongside other nodes in the scenegraph, then I never see the HUD in my osg::Image::readPixels call. That would make sense since my callback is operating on the main camera and not my child node camerabut leaves the question of how do I perform a complete screen capture on a graph with multiple cameras? Is there an example I missed? ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Creating shapes using Geometry
Hello Renan, But the thing is: I need these shapes to be created from the osg::Geometry class, as a matter of compatibility with another class. Do you know how to create the specific shapes I told you about (sphere, cylinder and box)? Your question could be two things: a) If you're asking how to specify vertex coordinates and indices in order to make a model in an osg::Geometry, then look at the tutorials that were mentioned. It's basically down to filling vertex and index arrays, and those tutorials have example code. You can also look at the osggeometry example. b) If you're asking how to calculate the appropriate vertices and indices to make a sphere, a cylinder or a box, then it's a purely mathematical exercise. For a box it's simple... For a sphere and a cylinder, there are a few ways, I urge you to try it yourself (hint: a bunch of vectors going in different directions around the origin, when normalized, will give a coarse or fine approximation of a circle, depending on how many vectors you used). If you're really in a hurry I'm sure I can dig up some old code, but really, it's an exercise that's given in any basic Computer Graphics course (and the old code I would give you is exactly that, the answers I gave to that exercise in my basic Computer Graphics course :-) ). You could also load up Blender, make a sphere or a cylinder, and export it to .osg with osgExporter (or any other format you can read - or any other modeling tool you have). But doing it mathematically is pretty easy too. Good luck, 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] screen capture with multiple cameras
sherman wilcox wrote: I want to capture my OSG screen and dump it to a jpeg or png file. My understanding is to attach a callback to the main osgViewer camera and perform a osg::Image::readPixels(...) from within the callback. That works in the simple case. But, if I have a basic HUD that is itself a camera alongside other nodes in the scenegraph, then I never see the HUD in my osg::Image::readPixels call. That would make sense since my callback is operating on the main camera and not my child node camerabut leaves the question of how do I perform a complete screen capture on a graph with multiple cameras? Is there an example I missed? ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org Sherman, I recently ran into the same problem on this list. Robert Osfield responded with some comments on how it might one-day be done more cleanly, but that Until these methods are added, you'll need to make do with a post draw callback on the last camera to be drawn. If your HUD is the last camera drawn, set the post draw callback on your HUD camera, and it will be a complete screen capture. - Michael ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] CMake Search Paths ?
Hi Eric, E. Wing wrote: 1) Use the ccmake instead of cmake. It exists for this very reason and is the easiest, most reliable answer. (I constantly beg people to use this so we don't get these kinds of questions over and over.) Well, this is the old story we've already had before the 2.0 release: I guess quite a lot of people build stuff like OSG as part of a batch or at least using a predefined script. If you disallow these people to modify the required flags on the 'cmake' command line, then you force all these people to create their very private hack and it's no surprise that people ask why they have to do so . So, telling people about the shiny world of 'ccmake' and begging for procedures that are _highly_impractical_ on many people's setup is one thing, getting things with command line flags _really_ sorted out isn't a bad option either. I'm very curious to know if the solutions, which you've been proposing here, actually did the job. Cheerio, Martin. -- Unix _IS_ user friendly - it's just selective about who its friends are ! -- ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
