Depth sorting for transparency happens at a course level in osg. I think it uses the center of the bounding box of the geometry object.
For your specific example you'll need to place the 6 cube faces into separate geometries to get the result you expect. If you want to make a complex model transparent have a look at the depth peeling example. 2009/7/11 Gotthard, Petr <[email protected]>: > Hello, > > > > I have troubles visualizing a 3D model (e.g. an aircraft) loaded using the > readNodeFile() function when this model is inside a semi-transparent box. > > > > I create the semi-transparent box, set alpha value and enable blending by > > state-->setMode(GL_BLEND, osg::StateAttribute::ON); > > state-->setRenderingHint(osg::StateSet::TRANSPARENT_BIN); > > > > When I load some model using readNodeFile and put it into the box, some > parts of the model disappear (get culled) when seen from outside the box, > while other don’t. For example, aircraft body disappear so that pilot seats > that were inside the aircraft are visible. > > If I move camera inside the box, I see the whole model inside the box is > visualized correctly. > > > > > > Do you have any idea what should I do to have the model-in-a-box displayed > correctly? > > > > I guess I should probably call some setMode or setRenderingHint function > also for the model. Do I have to walk through all nodes in the subgraph > loaded by readNodeFile, or is there a function that should be called on the > subgraph root only? > > > > Best Regards, > > Petr > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > -- http://www.ssTk.co.uk _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
