HI Laurence, In svn trunk there is support for morphing between geometries so have a look at this. See osganimationmorph.
Robert. 2009/3/20 Laurence Muller <[email protected]> > Hi, > > In the application I am working on, I am trying to create a smooth > (transition) animation on the vertices inside an object. > > Example: > I have included an illustration to make my problem a bit more clear. The > current scene contains one geode with a geometry attached. > The geometry is filled with 7 quads (4 vertices per quad) and is > illustrated as red dots in the picture. (The 'edges' are stored in a > separate geode) > > The application allows users to select a specific layout (radial, force > based, etc) for the quads. In the current implementation this change happens > immediately. > (It updates the vertex array with new values and uses the dirty() call on > the vertex array). > > On the OSG wiki page I found some information about animating objects in > the scene graph. > > http://www.openscenegraph.org/projects/osg/wiki/Community/NodeKits/osgAnimation > http://www.robertpenner.com/easing/easing_demo.html > > However, it seems like this will only work on geode level (by modifying the > Matrix or PositionAttitudeTransformation). > Another problem with this method is that it seems that you need to create a > predefined animation. > > In my case the new position of a vertex will depend on the current position > (and the animation only needs to be used once). > > Question: > - Is there a way to use the osgAnimation functions on the vertex array and > is it possible to use it with the transition methods from the EaseMotion > demo? > > Kind regards, > - Laurence > > ------------------------------------------ > Laurence Muller > Website/Blog/Portfolio: > http://www.multigesture.net/ > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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