Re: [osg-users] exception with cullVisitor-traverse(*_camera) after manually creating a geode
Hi, i finaly solved the problem. I kind of feel stupid with this issue. I was creating the my mesh class with out allocating memory for it. Mesh mesh; //wrong Mesh* mesh = new Mesh; //right thanks again for the advices Thank you! Cheers, Renato -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=46111#46111 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] exception with cullVisitor-traverse(*_camera) after manually creating a geode
Hi, awsome, thanks again for the advice. will do that from now on HAHA Thank you! Cheers, Renato -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=46113#46113 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] exception with cullVisitor-traverse(*_camera) after manually creating a geode
Hi, I am having a problem in which i get an exception when OSG is trying to render my manually created geode. The crash happens in sceneView.cpp when calling cullVisitor-traverse(*_camera). Does anyone have any ideias what might be? ... Thank you! Cheers, Renato -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=46094#46094 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] exception with cullVisitor-traverse(*_camera) after manually creating a geode
Hi,
sure i understand, sorry about that. i just wanted to know if someone already
experienced the same issue before. what i am actually doing is i created a obj
loader similar to the obj loader plugin from openscenegraph (the mojoraity of
the code of copied directly just for test). once i have loaded the file, i
create a mesh using all the information loaded and set the vertices, normals,
texture cordinates, and primitive set. no problem there. than i attache my mesh
to the a viewer like anyother example of the osg and run. like i said before,
the crash happens when the cullvisitor's traverse function gets called when its
building the sceneview.
i have attached my mesh generator file to the post.
Thank you!
Cheers,
Renato
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=46096#46096
// Alice - (C) Copyright 1993 Michel Gysen
#pragma hdrfile owlsys.csm
#pragma hdrstop
#include Mesh.h
//--
Mesh::Mesh():geometry(NULL),vertices(NULL),normals(NULL),texture(NULL),
nullValue(0xf000),currentElementList(0)
{
geometry = new osg::Geometry;
}
//--
Mesh::~Mesh()
{
if(!geometry-empty()) geometry-unref();
}
//--
PCChar Mesh::SetPath(PCChar pathIn,PCChar fileName,PCChar extName)
{
Char dev[4],dir[256],name[64],ext[64];
*dev = *dir = *name = *ext = 0;
if(fileName) _splitpath(fileName,dev,dir,name,ext);
_splitpath(pathIn,(*dev ? 0 : dev),(*dir ? 0 : dir),(*name ? 0 : name),(*ext
? 0 : ext));
if(!extName) extName = ext;
_makepath(filePath,dev,dir,name,extName);
return filePath;
}
//--
Int Mesh::addVertices(PCReal arr)
{
if(arr)
{
Real x = arr[0];
Real y = arr[1];
Real z = arr[2];
vertices.push_back(osg::Vec3(x,y,z));
return 0;
}
else
return -1;
}
//--
Int Mesh::addNormals(PCReal arr)
{
if(arr)
{
Real x = arr[0];
Real y = arr[1];
Real z = arr[2];
normals.push_back(osg::Vec3(x,y,z));
return 0;
}
else
return -1;
}
//--
Int Mesh::addTexture(PCReal arr)
{
if(arr)
{
Real x = arr[0];
Real y = arr[1];
texture.push_back(osg::Vec2(x,y));
return 0;
}
else
return -1;
}
//--
/*
* will add the primitive set beased on the element list data
*/
Int Mesh::addFace(PLong iworkSpace,Int nf)
{
if(iworkSpace)
{
//Elements array that will store our faces indexes
Element* element = new Element(Element::POLYGON);
//loop the number of entrires (v/vt/vn) in a line and
//push the indexes into the element table.
for(Int i = 0; i nf; i++)
{
element-vertexIndices.push_back(remapVertexIndex(iworkSpace[3*i]));
element-texCoordIndices.push_back(remapTexCoordIndex(iworkSpace[3*i+1]));
element-normalIndices.push_back(remapNormalIndex(iworkSpace[3*i+2]));
}
if (!element-normalIndices.empty() element-normalIndices.size() !=
element-vertexIndices.size())
element-normalIndices.clear();
if (!element-texCoordIndices.empty() element-texCoordIndices.size() !=
element-vertexIndices.size())
element-texCoordIndices.clear();
if (!element-vertexIndices.empty())
{
Element::CoordinateCombination coordateCombination =
element-getCoordinateCombination();
if (coordateCombination!=currentElementState.coordinateCombination)
{
currentElementState.coordinateCombination = coordateCombination;
currentElementList = 0; // reset the element list to force a recompute
of which ElementList to use
}
if (!currentElementList)
{
currentElementList = (elementStateMap[currentElementState]);
}
//push the elements previoulsy set to the main element list
currentElementList-push_back(element);
}
else
{
// empty element, don't both adding, just unref to delete it.
element-unref();
}
//push the elements previoulsy set to the main element list
return 0;
}
else
return -1;
}
//--
/*
* Convert the element list indices into primitive sets to build the faces
* All of the code was copied from the openscenegraph obj plugin
*/
Int Mesh::convertElementListToGeometry(ElementList elem)
{
UInt numVertexIndices = 0;
UInt numNormalIndices = 0;
UInt numTexCoordIndices = 0;
UInt numPointElements = 0;
UInt numPolylineElements = 0;
UInt
[osg-users] indices
Hi, Sorry for this question, but i want to know exaclty what is an indice and what is used for. the way that i understood is basicly an ID number to the vertexes? i am a completly noob in 3D graphics programming and some terms i quite dont understand yet. Thank you! Cheers, Renato -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45936#45936 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] indices
Hi, Wow, thanks guys for the quick and helpfull response. these information will definitely help. I am kind of lost with 3D but i will get there. Thanks again. Cheers, Renato -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45942#45942 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] getFirstIntersection() causes an excpetion
Hi, Forget about everything writing above. This is a problem due to the code generation of openscenegraph not mathching the applicaiton code generation for example, openscenegraph was generated as multi-threaded debug DLL (/MDd) while my code was being generated as Multi-threaded debug (/MT). Even though opensencegraph was built as static, the code generation was set to use the Dynamic C runtime while my code was using the Static C runtime. At first, this did not cause any issue since the functions has the same name, the problem is when you call new or delete. If i call new to create an openscenegraph object from my code which is using the static runtime lib (LIBCMTD.lib) and then destroyed that same object which will call the destructor whitin openscenegraph which is using the Dynamic C runtime (MSVCRTD.lib), this would cause the exception because the new and delete will be allocation/deallocating from diffrents memory block. so you would allocate memmory for a geode for exemple and endup deleting a unkown block of memory. sorry if i not clear enough Cheers, Renato -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45944#45944 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] more than 1 object in the same viewer
Hi, I am wondering if i can load 2 object files and have them share the same scene or viewer as a whole object? i was thinking the same way as the geode work when you add a Drawable (addDrawable()) if it is possible? can someone can give me an exemple? much appreciated. Thank you! Cheers, Renato -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45845#45845 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] more than 1 object in the same viewer
i guess i really dont know how to use it. i very new to openscenegraph and i was just able to learn how to load a single obj file for 1 viewer only. i also saw that that i can split the viewer into views so that the objects can have diffrent cameras but my real goal is just to have shapes loaded that will be 1 whole object att the end. do you have any exemples or hints in how to use the grope with childrens? i have a root node and i add the loaded objects to it, but only the last object add will display. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45847#45847 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] more than 1 object in the same viewer
Got it working after setting the scales. but possitioning and scalling properly will be a challenge. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45851#45851 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Missing ot12-OpenThreadsd.dll when building staticlly
Hi, I am having an issue when building my code staticlly. when the applicaiton runs, i get the error that the ot12-OpenThreadsd.dll is missing. I am using openscenegraph staticlly and also osgNV and osgNVPhysx staticlly. using only openscenegraph static libs does not give me any problem in my code ( i followed the osgstaticviewer example ), however, including osgNV and osgNVPhysx, which is also build staticlly, complains about the DLL missing. Is anyone familiar with osgNV and is there a setting that i am missing? Thank you! Cheers, Renato -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45683#45683 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] getFirstIntersection() causes an excpetion
Hi,
I am having a anyoing issue that i cannot figure out. Ive seen some post about
similar issue but with no defenit fix. I writing a picker code to know the
vertices of my object when i click in it following faitfully the example in
picking in the samples, however, getFirstIntersection() is causing and
exception when it returns from the pick function. the call stack shows that is
trying to delete a vector in the ~Intersection() destructor.
I have both OSG 3.0.1 and OSG 2.8.5 sorce and have build them in VS(2008). Ive
seen coments that this could be an issue related to code generation
Debug/Release not matching the OSG generation which is usually MT debug DLL.
Ive tried every generation on my code and on OSG itself (matching them of
course) but they still gives the issue. the strange thing is that the samples
does not have this problem of exception. Could it be a Compiler setting?
sorry for any misunderstanding. This is the first time im posting in this forum.
i would appreciate any help
Code:
Void PickHandler::pick(const osgGA::GUIEventAdapter ea, osgViewer::Viewer*
viewer)
{
osg::Node* scene = viewer-getSceneData();
if(!scene) return;
osg::Node* node = 0;
osg::Group* parent = 0;
//Our ray that
osgUtil::LineSegmentIntersector* picker;
// use window coordinates
// remap the mouse x,y into viewport coordinates.
osg::Viewport* viewport = viewer-getCamera()-getViewport();
Real mx = viewport-x() +
(Int)((Real)viewport-width()*(ea.getXnormalized()*0.5f+0.5f));
Real my = viewport-y() +
(Int)((Real)viewport-height()*(ea.getYnormalized()*0.5f+0.5f));
picker = new osgUtil::LineSegmentIntersector( osgUtil::Intersector::WINDOW,
mx, my);
//InteresectionVisitor is used to testing for intersections with the scene?
osgUtil::IntersectionVisitor iv(picker);
viewer-getCamera()-accept(iv);
if(picker-containsIntersections())
{
Real x,y,z;
[b]osgUtil::LineSegmentIntersector::Intersection intersection =
picker-getFirstIntersection();[/b]
x = intersection.getLocalIntersectPoint().x();
y = intersection.getLocalIntersectPoint().y();
z = intersection.getLocalIntersectPoint().z();
osg::NodePath nodePath = intersection.nodePath;
node = (nodePath.size()=1)?nodePath[nodePath.size()-1]:0;
parent =
(nodePath.size()=2)?dynamic_castosg::Group*(nodePath[nodePath.size()-2]):0;
char text[256];
sprintf(text,intersection- x:%f y:%f z:%f\n Hits: %s, nodePath size:
%d,x,y,z,node-className(),nodePath.size());
::MessageBox(NULL,text,,MB_OK);
}
}
Thank you!
Cheers,
Renato
--
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http://forum.openscenegraph.org/viewtopic.php?p=4#4
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Re: [osg-users] getFirstIntersection() causes an excpetion
as i was looking when this error happen the _Myfirstiter is NULL when its going through the ~Interserction() destruction. could that be a possible cause of the issue? i mean trying to delete a null pointer? -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45608#45608 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] getFirstIntersection() causes an excpetion
one other thing also i noticed, my code is calling the ~Intersection() destructor while osg example (osgkeyboardmouse) is not when exiting the pick function() -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45609#45609 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
