Hi Josue & Morad, Here is a newbie explanation :
- First time, you need to know that the *osgDB *library provides access
to a lot of 2D and 3D files ( like .fbx ), by managing several *osg *
plugins.
- You intend to use an fbx file, so you need to check if the plugin "FBX
reader/writer" is correctly installed.
- In second, the following snippet enable to load the scene graph of an
fbx file:
osg::ref_ptr<osg::Node> root = osgDB::readNodeFile( fbxFile )
>
- Then, locate the *AnimationManager *you want to use either *Basic *or *
Timeline*, according to your necessity.
[image: a02292.png]
- the best way is to use the design pattern Visitor, already implemented
in *osg::NodeVisitor*.
struct AnimationManagerFinder : public osg::NodeVisitor
> {
> osg::ref_ptr<osgAnimation::BasicAnimationManager> _am;
>
> AnimationManagerFinder()
> {setTraversalMode(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN); }
>
> void apply(osg::Node& node) {
>
> if (_am.valid())
> return;
>
> if (node.getUpdateCallback()) {
> _am =
> dynamic_cast<osgAnimation::BasicAnimationManager*>(node.getUpdateCallback());
> return;
> }
>
> traverse(node);
> }
> };
>
- In the previous code snippet, the *BasicAnimationManager*, if it is
found, will be stored on the variable* '_am' *located at *finder._am.*
- in your main function:
AnimationManagerFinder finder;
> root->accept(finder);
>
- then you can recuperate the *AnimationList* avalaible in your fbx file
like this:
const osgAnimation::AnimationList& animations =
> finder._am->getAnimationList();
>
- Finally, you can do what ever you want: play the animation on the *
osgViewer*, get the *Duration*, the *StartTime*, the *Name *of the
animation... specify the *PlayMode*..
finder._am->playAnimation( animations[an].get() );
...
>
std::cout << "name animation: " << animations[an]->getName() << std::endl;
>
I hope I helped :) please feel free to respond to this topic to ameliorate
it.
Have a nice day*
--*
*M. ALJI **Mohamed *
<<a02292.png>>
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