Nick Prudent a écrit :
> David,
>
> Let me get this straight: you want to read models that are already in memory?
> What did you use to load them in memory in the first place? If you have a lot
> of models in formats supported by OSG, it should not be a problem.
>
David is maybe trying to implement an encryption pseudo-loader or
something . Am I right ?
If so, then you can subclass an osgDB::ReaderWriter, then within the
virtual ReadResult readImage(std::istream& in,const
Options* options =NULL) const
{
// process the stream and provide a new processed
stream ( a stringstream for instance )
std::stringstream decryptionBuffer ;
...
// get a reader writer
ReaderWriter* rwOSG =
Registry::instance()->getReaderWriterForExtension("osg");
// then apply it to the new processed stream
return
rwOSG->readImage(decryptionBuffer,local_opt.get());
}
> Anyone correct me if I'm wrong, but there's only one way to read file:
> osgDB::readNodeFile(..) group of functions. You can also stream from the web,
> but I guess this is not what you want.
>
>
He could also create the ReaderWriter with the Registry mechanism and
apply it to a memory stream as shown above.
Rémy
>> I have a lot of 3d models, but I want save these models in database, then I
>> read the models , not in the local file. But I did not find the function to
>> read or parse the 3d model from memory. I know my models' file
>> format(3ds/OpenFlight...). did I must save the model to local disk first?
>> Thanks!
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--
Remy Deslignes
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Tel: +33 (0)1.53.90.11.19
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