Jean-Sébastien Guay wrote:
Hello Frank,
OK, so now it does compile. Great! :) However, my question still
stands, if anybody could point me to some documentation on OSG which
describes how OpenSceneGraph works, why it works that way and
consequently what one needs to do in writing programs. Some
documentation which would make me /understand/ what I'm doing.
Generally, I would think the first place to start would be
http://www.openscenegraph.org/projects/osg/wiki/Support
(accessed through the "Documentation" link in the table on the right of
the main OSG wiki web site). Some of that information is outdated so you
have to be careful, but check the section "User, Programming and
Reference Guides". The OSG Quick Start Guide in particular is a *free*
downloadable book which I suspect will give you the basic information
you need, and from there you will be well equipped to go into the more
detailed documentation.
You can gain a good understanding of the class structure of OSG and how
things fit together by browsing the doxygen-generated documentation at
http://www.openscenegraph.org/documentation/OpenSceneGraphReferenceDocs
For example, you can see the class hierarchy of osg::Node by going to
http://www.openscenegraph.org/documentation/OpenSceneGraphReferenceDocs/a01497.html
and then clicking in the diagram to go to other classes.
Other than what's on the wiki, the main source of information is the
examples that come with the source. The best way to learn how to use a
given feature of OSG is to search the examples for uses of it, and then
experimenting with that example.
Finally, of course there's this mailing list. People are generally
forthcoming and will answer questions as long as you've done some
research on your side to try and figure it out yourself.
Hope this helps,
Hello Jean-Sébastien,
Thanks for the tips. As you mention yourself in the last paragraph, I've
done at least some homework, so I've indeed come across all the places
you mention. The code can indeed serve as a further basis for
understanding, through experimentation with it. Hence me fiddling around
with the osgviewerWX example and also the ones listed on the wiki.
However, I haven't the faintest idea of what I'm doing and why I'm doing
the things I'm doing. I can copy code, change a few file/path strings,
even add some drawables to a scene and view the new scene in the basic
viewer (following the tutorials) and it all looks really pretty. But, I
feel at a loss when I try to use the osgviewerWX example in my own
project because it doesn't work as I expect it to and haven't got a clue
why. It's probably because I forget something very basic, but I don't
know that the basic thing needs to be done.
But, regardless of that, thanks for your help though. I do appreciate it. :)
Frank
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