ofxAddons
OpenFrameworks-addon to embed OpenFrameworks into OpenSceneGraph
Forks
Forks pushed to more recently than stmh/ofxOpenSceneGraph itself, plus any admin-confirmed fork with commits of its own — worth checking if you're hitting issues with the original.
Branches ahead of master
These branches have commits not yet on master — could be unmerged fixes or work in progress worth a look.
README
ofxOpenSceneGraph ReadMe
by <http://stephanmaximilianhuber.com>this small add-on helps OpenFrameworks-code to live side by side with OpenSceneGraph.
Requirements
OpenSceneGraph from <http://openscenegraph.org> OpenFrameworks 0062 from <http://openframeworks.org>
Install (OS X only for the moment, should work with linux/win32, too)
download, configure and install OpenFrameworks download and copy this addon into OpenFramworks/addons download, configure and install OpenSceneGraph use cmake with the following options: /usr/bin/cmake -G Xcode \ -D OSG_BUILD_FRAMEWORKS:BOOL=1 \ -D OSG_WINDOWING_SYSTEM:STRING=Cocoa \ -D OSG_BUILD_PLATFORM_IPHONE:BOOL=0 \ -D CMAKE_OSX_ARCHITECTURES:STRING=i386 \ -D CMAKE_OSX_SYSROOT:STRING=/Developer/SDKs/MacOSX10.5.sdk . open the xcode-project, build all targets and run the install-target (the run-part is essential!) Move the compiled frameworks from OpenSceneGraph to openFrameworks/addons/ofxOpenSceneGraph/lib/osx/frameworks Move all plugins from OpenSceneGraph to openFrameworks/addons/ofxOpenSceneGraph/lib/osx/plugins Open one of the examples and try to build and run it.
How it works
ofxOpenSceneGraph provides a customized ofAppBaseWindow-class which
creates an osgViewer::CompositeViewer creates an osgViewer::View and register it creates an event-handler to forward events from OpenSceneGraph to OpenFrameworks creates a CameraPreDrawCallback which calls the draw-function of the OpenFrameworks-app. runs the run-loop and calls the update-function of the OpenFrameworks-app.
There's even a ofxOsgApp-class, so you can get the composite-viewer and view from your app-code. Just inherit from ofBaseApp and ofxOsgApp
class myApp : public ofBaseApp, public ofxOsgApp {
};
Caveats
the OpenFrameworks-draw-routine is called before any drawing is done by OpenSceneGraph. Future versions may implement a postDraw-function which get called after all osg-related drawing. the current implementation does funky things when destroying the app-instance, as some OpenFrameworks-objects need an active OpenGL-context when they get destroyed. osg's multi-threaded rendering is disabled, as the update and draw-routines of the framework-app may overlap.
Have fun,
Stephan ( me at stephanmaximimilanhuber.com )