Hello, I have a good idea of what is causing this crash. I believe this to be the same as if you were to "osgconv something.dae somethingelse.dae" which I ran into while developing before SIGGRAPH.
The problem lies in the COLLADA DOM and how the plugin is structured. There are three "classes" in the plugin, the plugin class, the daeReader, and daeWriter (maybe the names aren't the same, I haven't looked at the code since I wrote it before SIGGRAPH, also I don't really like the software design but it was the quickest to get going and I didn't have much time. Please feel free to change it ;) ). The reader has it's own DAE object that it instanciates and cleans up when it is done. There is a problem with the DOM that after you do the static cleanup you cannot reinitialize correctly. I believe the problem then is that the loading of multiple documents is doing this. 1) initialize DOM 2) load first document - this is all good 3) clean-up DOM 4) initialize DOM 5) load second document CRASH somewhere in 4 or 5 A solution to this problem would be to move the DAE object out of the daeReader and daeWriter classes into the main "plugin" class and pass it to the reader and writer. This way you can initialize and clean-up the DAE object only once (I assume the plugin only gets initialized and cleaned up only once, otherwise you would still get this problem). I am sorry I didn't have time to make these changes before handing off the project to the OSG community. Maybe Sony will have me contribute more to the project in the future but I do not foresee this happening very soon. -Andy Robert Osfield wrote: > Hi Per, > > On 9/5/06, *Robert Osfield* <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > I have recreated the problem on my system and am no looking into > it. The COLLADA plugin was written be one of the developers of > COLLADA so expect its usage of COLLADA is appropriate, as to what > the crash is... > > > I have tried to use gdb to get to the bottom of this crash, and it > appears to be somewhere in the COLLADA library, but get a corrupted > stack so get very little actual usage information. > > I have played around with the construction of the objects that are used > to read/write via the COLLADA library but alas always got the crash. > > I am now a bit stumped to where to look or what to try next. I think we > probably need Mike Weiblen to reproduce the problem and see if he or his > colleagues have any suggestion. > > Robert. > > > ------------------------------------------------------------------------ > > _______________________________________________ > osg-users mailing list > [email protected] > http://openscenegraph.net/mailman/listinfo/osg-users > http://www.openscenegraph.org/ _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
