Hi Neil, A deep copy clones all the data, so none of the data is shared, so if you clone a subgraph with a texture that texture will now copied to 400 textures. Clearly this isn't good for performance.
Robert. On Fri, Jan 30, 2009 at 10:06 AM, <neil.hug...@tesco.net> wrote: > Hi All, > > Can anyone assist with an issue/misunderstanding I'm having when using > DEEP_COPY_ALL please ? > > The issue is that if I have a cube that I apply a texture to and add to the > scenegraph. This displays very quickly and no problems. If then do a clone > operation on the cube - say 400 times - adding each cloned node to the > scenegraph with a changed parent transform so that I effectively have an > arrangement of tiles in a grid like pattern, the realisation of the first > frame is very slow. Once first frame is realised, subsequent frame rate is > fine. Its almost as if, even though the DEEP_COPY_ALL operation has > completed, the nodes are referencing something that the first frame needs to > resolve. The only thing I can think of -perhaps erroneously I accept - is > that the textures are having to be loaded. Is this the case, and if so, what > can I do to speed up realisation of the first frame? > > Thanks for any help. > > Kind regards > > Neil > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
