Hi, for http://www.openscenegraph.org/index.php/gallery/use-cases/189-fm-profil we are trying to add animation trigger support to a scene by a specific plugins. Animation trigger support means to start an animation if the user clicks a specific object. The recent implementation uses a dedicated pick handler to be called if a user selects an object and starts an animation by using class AnimationViewerModelController, which is already included in the osg source. The connection between the trigger object and the related animation has been designed by using a specific object name postfix including the animation name to make the pick handler able to find the related animation. The animation itself is created with blender and exported with the osgexport plugin (https://github.com/cedricpinson/osgexport).
The pick handler needs to be added to the viewer, which is normally instantiated in the main application. Because we need to support several viewers and we do not want to patch all related viewer (some of them are 3rdparty like https://github.com/ChrisDenham/osgopenvrviewer) we are looking for a way to place all this mentioned stuff into an osg plugin, which could be loaded by any viewer by appending the plugin extension (which is animtrigger in our case) to the model file e.g. osgviewer test.osgt.animtrigger . The related code to add a pick handler to a viewer looks like that: AnimationPickHandler *pickHandler = new AnimationPickHandler(); viewer->addEventHandler(pickHandler); To be able to call them in a plugin the plugin needs access to the viewer instance, which is not possible with recent code and I'm looking for a way to add such support to osg. >From my recent osg knowledge I would say that one of the available viewer related classes needs to be extended to register itself into a static list located in the class osg::View or in a dedicated new "viewer manager" class. Are there any hints for implementing this ? Regards Ralf _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
