[osg-users] How to implement pagedLOD without reading from files?

Wojciech Lewandowski w.p.lewandowski at gmail.com
Wed Nov 16 08:17:44 PST 2016

Hi Werner,

I think you may try using osg::Registry::instance()->addReaderWriter(
YourReaderWriterInstance ) to add your own localy defined RW. Your RW will
need to override supportedExtensions() and/or acceptsExtension() virtual
methods. But I guess you must have already done that....


2016-11-16 16:51 GMT+01:00 Werner Modenbach <Werner.Modenbach at texion.eu>:

> Hi Robert,
> I think I have all the coding done and in my opinion  it should work.
> But it doesn't and I figured out why.
> When using osgDB with my own ReaderWriter it automatically uses the
> dynamic load feature and the ReaderWriter is expected to be a dll in the
> plugins folder.
> Unfortunately my ReaderWriter is very much depending on many classes I
> have in my
> project and also has dependencies to Qt.
> Creating such a dll would be a complete overkill of link dependencies.
> Is there any way avoiding the dynamic load mechanism and using an instance
> of a
> class being part of my static libs?
> Thanks in advance for any hints.
> - Werner -
> Am 11.11.2016 um 12:47 schrieb Robert Osfield:
> Hi Wener,
> On 11 November 2016 at 11:32, Werner Modenbach<Werner.Modenbach at texion.eu> <Werner.Modenbach at texion.eu> wrote:
> just one more small question.
> As to my understanding the ReaderWriter classes are instantiated
> automatically
> according to the "file extensions". So I get no hands on the instances of
> the reader.
> How can I give the reader class a reference to my data structures?
> You can pass data into a plugin via the osgDB::Options object that you
> can pass along with the string used for the filename.  The Options
> object can store user data as well be subclassed.
> Robert.
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