Hi Tina, Setting the colour array on an osg::Geometry should be quick and shouldn't normally make rendering slow. The fact you are finding this suggests that perhaps you are setting up osg::Geometry to render with OpenGL slow paths so as using indices arrays or per primitive bindings - these are a deprecated.
I would suggest you take a step back and try to work out why you are getting slower performance. We can't help you too much without more information about what the bottlenecks are and what performance you were and are now getting. For instance tells the hardware, OS, OSG version, how you've compiled it (debug vs release), the model stats, the performance stats such as update, cull, draw dispatch and draw GPU times. Robert. On 20 September 2012 21:37, Tina Guo <[email protected]> wrote: > Hi, > > I am trying to change the color of a geometry after I pick it. I use display > list, however, when call setColorArray, it takes time to really change the > color. I read this post http://forum.openscenegraph.org/viewtopic.php?t=9234 > , and setUseDisplayList(false). However, after that, the manipulate of model, > rotate, pan...becomes slow, and frame rate drops. I do not know if there's > way to change the color of geometry with call setColorArray to avoid calling > dirtyDisplayList(). > ... > > Thank you! > > Cheers, > Tina > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=50225#50225 > > > > > > _______________________________________________ > 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
