brettwiesner wrote on Wednesday, October 01, 2008 11:54 AM: > Bryan, > > Thanks for the reply. See inline... >> You could implement your own loader with a different file extension >> (say, ".enc") that does the en/decryption and then calls the IVE loader >> to load the resulting data. The curl loader does something like this. >> > > This is what I did originally. There was a problem with referenced > files; those wouldn't get encrypted/ decrypted. The IVE loader would > just process them as .ive's. > >> Or you could use a osgDB::Registry::Read/WriteFileCallback to de/encrypt >> the data before it gets read/sent from/to disk. >> >> > > That is interesting. I didn't know about those before. I think they will > have the same problem though. If I write a callback that does something > special when it's suppose to write out an encrypted file, and it uses > the IVE loader to get the data to encrypt, that process will still cause > the IVE loader to write out referenced files as .ive's. > > This would be pretty easy if I could derive from ReaderWriterIVE.
It sounds like the problem is the referenced filenames; perhaps a visitor to change them to have the ".enc" extension so they get written through your loader rather than the IVE one directly? For example, a ProxyNode or PagedLOD that refers to "foo.osg" would have to be changed to refer to "foo.osg.enc" before you do the actual write. -- Bryan Thrall FlightSafety International [EMAIL PROTECTED] _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
