Hi Jimmy, I just stumbled across this thread when searching for a similar solution, and found it very interesting. Would you be prepapred to share some of your code for a 3D Axis in the HUD? I'd understand if not.
Otherwise - what is the basic principle? I have a HUD added to my scene as a seperate camera, this uses an ortho2D projection and an identity view matrix as in the osgHUD example. On this I'd like to add a 3D Axis. Should I just create the Geode for the axis (with an update callback to reorient it) and plop it in the lower left? Or do I require a separate HUD for the 3D element? Thanks in advance, Andrew On Thu, Aug 20, 2009 at 9:04 AM, Robert Osfield <[email protected]>wrote: > Hi Jimmy, > > If you are doing the frame loop you know when it's the first frame > before you just place any viewer setup prior to the frame loop. The > _firstFrame code block you see if just a fallback in case the viewer > hasn't already been setup. > > Robert. > > On Wed, Aug 19, 2009 at 10:49 PM, Jimmy Lin<[email protected]> wrote: > > Hi, > > > > Here is the code of frame() > > > > > > Code: > > void ViewerBase::frame(double simulationTime) > > { > > if (_done) return; > > > > if (_firstFrame) > > { > > viewerInit(); > > > > if (!isRealized()) > > { > > realize(); > > } > > > > _firstFrame = false; > > } > > advance(simulationTime); > > > > eventTraversal(); > > updateTraversal(); > > renderingTraversals(); > > } > > > > > > > > It calls viewerInit() on the first frame. > > Don't I need to do that myself if I expand the code? > > By looking at the viewerInit() code. I think I might be able to expand > the code and init all the view I created. > > > > Thank you! > > > > Cheers, > > Jimmy > > > > ------------------ > > Read this topic online here: > > http://forum.openscenegraph.org/viewtopic.php?p=16447#16447 > > > > > > > > > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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