Re: [osg-users] Bug in OSG? getMatrix() and setByMatrix() is not enough to transrer camera state
For now, existing manipulators does fit. Well... almost :) I have an idea to write my own, but for quick-n-dirty concept existing will be ok. Cheers, Dan -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62623#62623 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Bug in OSG? getMatrix() and setByMatrix() is not enough to transrer camera state
Thanx, Robert! Get it. I suppose, the most convenient way then - is to subclass KeySwitchMatrixManipulator and override handle() method. My app knows, what manipulators will be added to KeySwitcher, and will perform all required additional settings during switch. Cheers, Dan -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62621#62621 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Bug in OSG? getMatrix() and setByMatrix() is not enough to transrer camera state
I have discovered, that when working with manipulators, it is not enough to call getMatrix() and setByMatrix(), when switching between manipulators, say, with KeySwitchManipulator. You can try it: run osgsimulation example and try to switch between manipulators with '1' and '2' keys. The camera become crazy. I do not know the source code well, but suppose, that some mean should be created, that notifies manipulator, when it is switched in and out. Cheers, Dan -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62609#62609 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] How to save camera position between manipulators switching?
I think, I have found a bug in OSG KeySwitchMatrixManipulator. I have checked example, provided with OSG, it have same troubles, when I switch between Trackball and NodeTracker manipulators. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62608#62608 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] How to save camera position between manipulators switching?
KeySwitcherMatrixManipulator doing exactly, as you're described: getMatrix from current, and set it to manipulator, that becomes current. But this default behavior does not work. Cheers, Dan -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62595#62595 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] How to save camera position between manipulators switching?
Hello! I'm using KeySwitchMatrixManipulator with two added manipulators: TrackballManipulator and NodeTrackerManipulator. autoComputeHome is true for KeySwitch manipulator. TrackballManipulator centered by default in a center of a scene NodeTracker is looking at one of scene's model. When I switching a manipulators, camera position and angle changes randomly. Is it possible to preserve a camera position and direction of view between changes? Thank you! Cheers, Dan -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62593#62593 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] compositeView in multithreaded Win32 MFC MDI application
Well, I have tried a strategy 1 Viewer per 1 ClientWnd. I'm not using Doc/View model. It works pretty well for me. The only thing I have discovered so far: you shouldn't initialize OSG and render thread in WM_CREATE handler. This will cause a crash. Because of this, I have to initialize OSG and render thread in first call to WM_PAINT. Of course, it could be done from MainFrame OnNew method, but then I have to traverse all chain MainFrame->ChildFrame->ClientWnd. I don't like this kind of dependencies. More disturbing is a very slippery glitch with app hang. I have discovered this in my current version of 3d-module, which have been written using Ogre3D. After transferring to Windows 7, application hangs in about 50% of runs in Ogre's Present method. This method swaps backbuffer to show it on a display. Usually app hangs somewhere deep inside video driver or Windows ntdll. My current app using a somewhat complicated threading model, so I decided, that it is something completely wrong with it. But today I have experienced a similar hang in my new version of 3D-module, written using OSG. In render thread's call to viewer->frame() method. As I understand, this method swaps a backbuffer. Not this again! It happened once so far, but I don't like this. Something have changed seriously in Windows 7 graphics. So, multithreaded rendering using accelerated 3D graphics should be done in a different way. Maybe someone know the issue? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62533#62533 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] compositeView in multithreaded Win32 MFC MDI application
I have found an answer for my own question. I don't know, whether it is complete or not, but... It is an app in OSG examples, named osgviewerMFC, that demonstrates almost exactly what I need. The app doesn't use CompositeView class. And things are much simpler then. Will investigate further... -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62487#62487 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] compositeView in multithreaded Win32 MFC MDI application
Hi! We have a mature app, that uses Microsoft's MFC library for GUI management. Application windowing model is MDI. I have to render a multiple 3D scenes in different MDI childs, which are created elsewhere. So, I should attach OSG context to existing window. The threading model of our app is messy, so it is a possibility, that calls will be made from different threads. Is there any general sources of information, how to use correctly compositeView in this environment, and how to correctly attach View to MDI child's client window? Thank you! Cheers, Dan -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=62465#62465 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
