Hi Islam,
as i said ... i am newbie ... and this is my first game to develop for my computer graphics course in my college
Being a newbie is not a problem, it's a beginning, thanks for being with us! I just wanted to point out that you do have some resources.
another note that there is no enough tutorial for the osg the documentation is no so helpful and the tutorials does not cover every feature in the osg
There are a lot of tutorials, it's just such a broad library that it's hard to have focused tutorials that cover every feature.
In the source code for OSG there are about 150 examples that cover most of OSG's features and can show you how to do almost anything. There are at least a few of these that would have shown you that you need to flag drawables that are updated every frame as DYNAMIC.
There is also the OSG Quick Start Guide which is a free PDF book you can download from www.osgbooks.com. Among many other things, it talks about DYNAMIC data variance in section "3.2.1 Data Variance" on page 92 (106 / 136 PDF pages).
There is also a new book out, the OpenSceneGraph Beginner's Guide, which also talks about this and many other topics.
There are also a lot of tutorials on the main OSG site. I know some of them are badly formatted or hard to read, and the site has been down a lot lately, but they're there. And in fact, looking at the Tutorials page on the OSG site now, I would almost say there are too many of them. A beginner might get overwhelmed. And I'm pretty sure a lot of them are outdated (perhaps more towards the bottom of the page where specific effects are discussed).
I know you didn't mean that there were few tutorials about your particular problem, you meant it more in general, but I think there are many and there are lots of other sources of documentation. In particular I will emphasize again the examples that come with the source code which are a wealth of information and tips. Even being a relatively experienced OSG user, I still refer to the examples regularly.
i hope this will be heard by someone from the osg team
Everyone is part of the OSG team, even you if you want :-) Apart from Robert Osfield, there is no group called the "OSG team", there are just a lot of people who like to use this library and want to improve it. That also means documentation, but it's an ongoing process.
Hope this helps, J-S -- ______________________________________________________ Jean-Sebastien Guay [email protected] http://www.cm-labs.com/ http://whitestar02.webhop.org/ _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
