Re: [osg-users] [osgPlugins] OBJ plugin loader places model at wrong position and with wrong attitude
Hi, The problem is I get back a null pointer for options after using this: osgDB::ReaderWriter::Options* options =osgDB::Registry::instance()-getOptions(); I am guessing the options string I want is specific to the obj plugin, so do I need to tell the registry I am using that plugin? To load the obj all I am doing is this: Node*node = osgDB::readNodeFile(myobject.obj); I can load the object fine but its at the wrong orientation, and I want to fix that just like the original post. Thank you! Cheers, Robert -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=36442#36442 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] OBJ plugin loader places model at wrong position and with wrong attitude
Hi Robert, On Sat, Feb 5, 2011 at 7:37 PM, Robert Pardridge bobbyucsd...@yahoo.com wrote: how exactly do you modify the options string with c++ code? osgDB::ReaderWriter::Options* options = osgDB::Registry::instance()-getOptions(); Might I suggest you look at the header for Options? When you do you'll find a Options::setOptionString(const std::string) method ;-) Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] OBJ plugin loader places model at wrong position and with wrong attitude
how exactly do you modify the options string with c++ code? osgDB::ReaderWriter::Options* options = osgDB::Registry::instance()-getOptions(); -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=36393#36393 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] OBJ plugin loader places model at wrong position and with wrong attitude
Hi, is there a way to set noRotation option again to the default value? Regards Gianni -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=29479#29479 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] OBJ plugin loader places model at wrong position and with wrong attitude
Gianni Ambrosio writes: Hi, is there a way to set noRotation option again to the default value? I don't know if it is possible from the command line. You could osgconvert the files that are in odd orientations. Programmatically, just don't use the same osgDB::Options object in the next read. -- Alberto ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] OBJ plugin loader places model at wrong position and with wrong attitude
Alberto Luaces wrote: Programmatically, just don't use the same osgDB::Options object in the next read. Yes Alberto, I mean programmatically. What do you mean by that? What if I would like to use the existing osgDB::ReaderWriter::Options as is but just without the noRotation setting? If I overwrite the Options object I think I would loose all the other options. Regards Gianni -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=29484#29484 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] OBJ plugin loader places model at wrong position and with wrong attitude
Hi Gianni, Gianni Ambrosio writes: Alberto Luaces wrote: Programmatically, just don't use the same osgDB::Options object in the next read. Yes Alberto, I mean programmatically. What do you mean by that? What if I would like to use the existing osgDB::ReaderWriter::Options as is but just without the noRotation setting? If I overwrite the Options object I think I would loose all the other options. Then you can use osgDB::ReaderWriter::Options::getOptionString(), remove noRotation there and then apply it again with osgDB::ReaderWriter::Options::setOptionString(). Or better, have two osgDB::ReaderWriter::Options objects... -- Alberto ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] OBJ plugin loader places model at wrong position and with wrong attitude
Hi Alberto, Alberto Luaces wrote: remove noRotation probably my question is too stupid ... how can I remove it? I tried with: osgDB::ReaderWriter::Options* options = osgDB::Registry::instance()-getOptions(); options-removePluginData(noRotation) but it does not seem to work. I mean the Options object still contains the noRetation string inside. Regards, Gianni -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=29493#29493 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] OBJ plugin loader places model at wrong position and with wrong attitude
OK, I think I didn't get the usage of the option string. I thought I could set a single option but it seems I have to set the whole option string again. So I have to parse the string to remove the noRotation substring ... if so, from my point of view it is not a user friendly API. Regards Gianni -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=29496#29496 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [osgPlugins] OBJ plugin loader places model at wrong position and with wrong attitude
Hi, I am using the obj plugin to load polygonal models, but it seems that the models are placed at wrong positions and with a wrong attitude in the coordinate system. I have a model that is centered at (1014, 1025, 999), but it is placed at coordinates (1014, -999, 1025). In the program we use we have a view matrix that is not the identity matrix, it looks like this: 1 0 0 0 0 0 1 0 0 -1 0 0 0 0 0 1 so probably the view matrix is not considered by the obj plugin. I tried it with 3DS models, and these are placed correctly into the scene, so I think this could be a bug in the obj plugin. Another issue is, that there also seems to be a rotation of 90 degrees about the (-1, 0, 0) axis so the imported OBJ models are displaced and wrongly oriented. I would like to ask if there is something I can do about this? One way would be to make a workaround in our program, but maybe there is already a feature in OSG that addresses these issues? Thank you! Cheers, Claus -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=17740#17740 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] OBJ plugin loader places model at wrong position and with wrong attitude
Hi Claus, Claus Scheiblauer writes: Hi, I am using the obj plugin to load polygonal models, but it seems that the models are placed at wrong positions and with a wrong attitude in the coordinate system. I have a model that is centered at (1014, 1025, 999), but it is placed at coordinates (1014, -999, 1025). In the program we use we have a view matrix that is not the identity matrix, it looks like this: 1 0 0 0 0 0 1 0 0 -1 0 0 0 0 0 1 so probably the view matrix is not considered by the obj plugin. I tried it with 3DS models, and these are placed correctly into the scene, so I think this could be a bug in the obj plugin. Another issue is, that there also seems to be a rotation of 90 degrees about the (-1, 0, 0) axis so the imported OBJ models are displaced and wrongly oriented. I would like to ask if there is something I can do about this? One way would be to make a workaround in our program, but maybe there is already a feature in OSG that addresses these issues? Reading the output of osgconv --formats, it is shown that the OBJ plugin has an option to deactivate that rotation around the X axis. Its name is noRotation. You should use it when loading the model from your OSG code. Regards, Alberto ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [osgPlugins] OBJ plugin loader places model at wrong position and with wrong attitude
Hi, I was not aware that there are options for the loading plugin, thank you, this option solves both problems, now it works! Cheers, Claus -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=17743#17743 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
