[osg-users] Reading files and callbacks

Robert Osfield robert.osfield at gmail.com
Mon Aug 31 00:07:17 PDT 2015

Hi Tony,

On 31 August 2015 at 03:54, Tony Vasile <minghia at gmail.com> wrote:

> We have a bunch of OpenFlight models with have information in some of the
> nodes that we use to configure our system. Is it better to use ReadNodeFile
> and post-process the file with a NodeVisitor? Or is is better to override
> osgDB::ReadFileCallback and somehow exercise our code when it finds a node
> of particular interest?

You'll likely be using the same code to find the nodes of interest no
matter what approach you use, to me it's really just an issue where it'll
be most convenient/flexible for you to invoke it in your application.

If you are loading the files directly by your application by calling
osgDB::readNodeFile(..) then adding post processing in afterwards would be
easy, but if the files are being read as part of paged database then using
the ReadFileCallback would be required.

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