>
> Marco Cosentino wrote:
> Quote: � Select � � Expand �
> Quote: � Select � � Expand �
> Hi,
> I have a problem (maybe a bug?) in loading a .dae file made with Blender
> collada exporter.
> I'm writing a robot simulation software that uses collada to load both 3d and
> physics.
> The error I get is an exception :
> "Unhandled exception at 0x0049fb10 (msvcr80d.dll) in RobotSimulator.exe:
> 0xC0000005: Access violation reading location 0x00000000."
>
> This occours when I try to load the collada file. Here is the code I wrote:
>
> Code:
> bool VisualModel::CreateFromColladaFileAndFillDAE(std::string & filename,DAE
> *dae)
> {
> osg::ref_ptr<osgDB::ReaderWriter::Options> rwoptions(new
> osgDB::ReaderWriter::Options());
> rwoptions->setPluginData("DAE",dae);
> modelnode = osgDB::readNodeFile(filename,rwoptions);
> if(!modelnode) return false;
> return true;
> }
>
>
>
> Here is the stack trace:
>
> Code:
> Quote: � Select �
> msvcr80d.dll!strlen(unsigned char * buf=0x0012e760) Line 81 Asm
> msvcp80d.dll!std::char_traits<char>::length(const char * _First=0x00000000)
> Line 559 + 0x9 bytes C++
> msvcp80d.dll!std::basic_string<char,std::char_traits<char>,std::allocator<char>
> >::assign(const char * _Ptr=0x00000000) Line 1042 + 0x9 bytes C++
> msvcp80d.dll!std::basic_string<char,std::char_traits<char>,std::allocator<char>
> >::operator=(const char * _Ptr=0x00000000) Line 893 C++
> osg55-osgd.dll!osg::Object::setName(const char * name=0x00000000) Line 102 +
> 0x21 bytes C++
> osgdb_daed.dll!osgdae::daeReader::processSinglePPrimitive<domTriangles>(osg::Geode
> * geode=0x05c08620, domTriangles * group=0x05c1cbe8, std::map<daeElement
> *,osgdae::domSourceReader,std::less<daeElement
> *>,std::allocator<std::pair<daeElement * const,osgdae::domSourceReader> > > &
> sources=[2](...,...), unsigned int mode=4) Line 243 + 0x14 bytes C++
> osgdb_daed.dll!osgdae::daeReader::processGeometry(domGeometry *
> geo=0x05c1a3e8) Line 219 C++
> osgdb_daed.dll!osgdae::daeReader::processInstanceGeometry(domInstance_geometry
> * ig=0x05c1ee98) Line 47 + 0xc bytes C++
> osgdb_daed.dll!osgdae::daeReader::processNode(domNode * node=0x05c1e310) Line
> 366 + 0x22 bytes C++
> osgdb_daed.dll!osgdae::daeReader::processVisualScene(domVisual_scene *
> scene=0x05c1dd58) Line 156 + 0x23 bytes C++
> osgdb_daed.dll!osgdae::daeReader::convert(const
> std::basic_string<char,std::char_traits<char>,std::allocator<char> > &
> fileURI="./simpleworld.dae") Line 123 + 0xc bytes C++
> osgdb_daed.dll!ReaderWriterDAE::readNode(const
> std::basic_string<char,std::char_traits<char>,std::allocator<char> > &
> fname=".simpleworld.dae", const osgDB::ReaderWriter::Options *
> options=0x05c07100) Line 65 + 0x12 bytes C++
> osg55-osgDBd.dll!osgDB::Registry::ReadNodeFunctor::doRead(osgDB::ReaderWriter
> & rw={...}) Line 1399 + 0x40 bytes C++
> osg55-osgDBd.dll!osgDB::Registry::read(const osgDB::Registry::ReadFunctor &
> readFunctor={...}) Line 1537 + 0x22 bytes C++
> osg55-osgDBd.dll!osgDB::Registry::readImplementation(const
> osgDB::Registry::ReadFunctor & readFunctor={...}, bool useObjectCache=false)
> Line 1645 + 0x13 bytes C++
> osg55-osgDBd.dll!osgDB::Registry::readNodeImplementation(const
> std::basic_string<char,std::char_traits<char>,std::allocator<char> > &
> fileName=".simpleworld.dae", const osgDB::ReaderWriter::Options *
> options=0x05c07100) Line 1850 + 0x57 bytes C++
> osg55-osgDBd.dll!osgDB::Registry::readNode(const
> std::basic_string<char,std::char_traits<char>,std::allocator<char> > &
> fileName=".simpleworld.dae", const osgDB::ReaderWriter::Options *
> options=0x05c07100, bool buildKdTreeIfRequired=true) Line 237 + 0x98 bytes C++
> osg55-osgDBd.dll!osgDB::readNodeFile(const
> std::basic_string<char,std::char_traits<char>,std::allocator<char> > &
> filename=".simpleworld.dae", const osgDB::ReaderWriter::Options *
> options=0x05c07100) Line 69 + 0x1f bytes C++
> RobotSimulator.exe!RobotSimulator::VisualModel::CreateFromColladaFileAndFillDAE(std::basic_string<char,std::char_traits<char>,std::allocator<char>
> > & filename=".simpleworld.dae", DAE * dae=0x0012f958) Line 10 + 0x15 bytes
> C++
> RobotSimulator.exe!RobotSimulator::Simulable::LoadModel(RobotSimulator::Model
> model={...}) Line 21 + 0x16 bytes C++
> RobotSimulator.exe!RobotSimulator::Simulator::LoadSimulation(const char *
> pfilename=0x05b4d9c1) Line 93 + 0x28 bytes C++
> RobotSimulator.exe!main(int argc=2, char * * argv=0x05b4d968) Line 54 + 0x20
> bytes C++
> RobotSimulator.exe!__tmainCRTStartup() Line 586 + 0x19 bytes C
> RobotSimulator.exe!mainCRTStartup() Line 403 C
> kernel32.dll!7c817077()
>
>
>
>
> The collada model is made by Blender 2.48a using the default startup scene
> with the cube with assigned a green material and esported with Triangles
> option and DisablePhisics option (for testing). You can find it in
> attachments.
> Note that with collada-dom viewer the model is loaded adn displayed correctly
> and with osgviewer the model is loaded witout exceptions but nothing is
> displayed into the scene.
>
> I think the problem is related to the call (you can see in the stack trace)
> osg55-osgd.dll!osg::Object::setName(const char * name=0x00000000)� Line 102 +
> 0x21 bytes
>
> Can you tell me why this appens and how to correct ?
>
> Thank you!!
> Bye :D
>
> The safety check on the material name not being NULL seems to have
> disappeared at SVN revision 9228.
>
> Roger
Hi Roger,
thank you for your reply.
Could you tell me how to avoid this problem? Should I re-insert the check in
the source ?
------------------
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http://forum.openscenegraph.org/viewtopic.php?p=13929#13929
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