[osg-users] Qt resouce and osgDB::readImageFile
Hi, I currently bind files wich our application need as resource. But is there a way, that osg automatically use the resource system (accept filepathes starting with qrc:/). Or how I can load a file from a qrc with something like readImageFile, where a filepathes is accepted, but I don't see an alternate with a stream? Thank you! Cheers, Heiko -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61020#61020 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] CppCheck
Hello, I'm currently running CppCheck on our own project, which depends on osg. Therefore we are getting a lot of warnings related to osg. It is possible that someone whit a little bit more knowledge about osg take a look at it and fix them? There are many easy warnings (scope can be reduced or pass by reference), but also some where I don't know how they should be fixed in best way (e.g. warning not initialized in the constructor). Regards SunBlack -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=60615#60615 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Correct Size of boundingBox
Hi,
I currently try to get correct height of a model. So I use a boundingBox. But
my problem: it return the size without checking for a PositionAttitudeTransform.
My current hack is:
Code:
float getHeight(osg::Node* model) //return 1.4 on my example
{
float zMax;
osg::PositionAttitudeTransform* pat =
dynamic_castosg::PositionAttitudeTransform*(model);
osg::ComputeBoundsVisitor boundsVisitor;
boundsVisitor.apply(*model);
osg::BoundingBox boundingBox = boundsVisitor.getBoundingBox();
if (pat)
{
osg::Vec3d scaleVec = pat-getScale();
zMax = boundingBox.zMax()*scaleVec.z();
}
else
{
zMax = boundingBox.zMax();
}
return zMax;
}
Is there a way to get correct bounding box without checking for
PositionAttitudeTransform? I tried to optimize model before I check to remove
the PositionAttitudeTransform. But it seems to not help.
Code:
float getHeight(osg::Node* model) //return 7.3 on my example
{
float zMax;
osgUtil::Optimizer optimizer;
optimizer.optimize(model);
osg::ComputeBoundsVisitor boundsVisitor;
boundsVisitor.apply(*model);
osg::BoundingBox boundingBox = boundsVisitor.getBoundingBox();
zMax = boundingBox.zMax();
return zMax;
}
Is there a clean solution?
Thank you!
Cheers,
Heiko
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[osg-users] Billboard with two layer
Hi,
currently I create a healthbar for a minion. So I use a billboard for it. But
now I have a problem: I want give the billboard a background. So I have
following both gemoetries:
A colored border, filled with another which is a little bit transparent.
Code:
||
| |
||
And the healthbar:
Code:
☐☐
Combined it should look like this:
Code:
||
|☐☐|
||
But how to combine it without flickering?
Currently I have (_createHealthGemoetry ist nearly the same like
_createBackgroundGemoetry, but smaller so it fit into the other):
Code:
HealthBar::HealthBar()
{
this-setMode(osg::Billboard::POINT_ROT_EYE);
_health = 1;
_maxHealth = 1;
this-_setBillBoardStateSet();
this-addDrawable(_createBackgroundGemoetry());
this-addDrawable(_createHealthGemoetry());
}
void HealthBar::_setBillBoardStateSet()
{
osg::StateSet* billBoardStateSet = new osg::StateSet();
billBoardStateSet-setMode( GL_LIGHTING, osg::StateAttribute::OFF );
billBoardStateSet-setAttributeAndModes( new osg::BlendFunc,
osg::StateAttribute::ON );
billBoardStateSet-setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
// Make sure the geometry has the correct state
this-setStateSet(billBoardStateSet);
}
osg::Drawable* HealthBar::_createBackgroundGemoetry()
{
float width = 0.8f;
float height = 0.12f;
osg::Geometry* backgroundGeometry = new osg::Geometry();
osg::Texture2D* backgroundTexture =
AssetLibrary::instance()-getTexture(healthbar/test.png);
// Declare and initialize geometry
backgroundGeometry = new osg::Geometry();
//add vertices and texture
osg::Vec3Array* verts = new osg::Vec3Array(4);
(*verts)[0] = osg::Vec3( -width/2, 0, -height/2);
(*verts)[1] = osg::Vec3( +width/2, 0, -height/2);
(*verts)[2] = osg::Vec3( +width/2, 0, +height/2);
(*verts)[3] = osg::Vec3( -width/2, 0, +height/2);
backgroundGeometry-setVertexArray(verts);
osg::Vec2Array* texCoords = new osg::Vec2Array(4);
(*texCoords)[0].set(0.0f, 0.0f);
(*texCoords)[1].set(1.0f, 0.0f);
(*texCoords)[2].set(1.0f, 1.0f);
(*texCoords)[3].set(0.0f, 1.0f);
backgroundGeometry-setTexCoordArray(0, texCoords);
osg::StateSet* stateSet = new osg::StateSet();
stateSet-setTextureAttributeAndModes(0, backgroundTexture,
osg::StateAttribute::ON);
backgroundGeometry-setStateSet(stateSet);
// Add a primitive set (QUADS) to the geometry
backgroundGeometry-addPrimitiveSet(new
osg::DrawArrays(osg::PrimitiveSet::QUADS,0,4));
osg::Vec4Array* colors = new osg::Vec4Array;
colors-push_back(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f));
backgroundGeometry-setColorArray(colors);
backgroundGeometry-setColorBinding(osg::Geometry::BIND_OVERALL);
return backgroundGeometry;
}
Thank you!
Cheers,
Heiko
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Re: [osg-users] LineSegmentIntersector which objects are returned?
Hi Robert,
robertosfield wrote:
Secondly the intersections you get returned return the leaf node and
drawable that is intersected along with the node path from the root of
the intersection traversal down to the leaf node that was intersected.
you found my problem: I forgot that the demo access only the leaf node, so I
can solve may problem by searching right node on nodePath.
But I can't use nodePath like expected. To play a little bit with the nodePath
I wanted to print all names of nodes
So my first try was:
Code:
bool nodeFound = false;
for(osgUtil::LineSegmentIntersector::Intersections::iterator hitr =
intersections.begin(); hitr != intersections.end(); ++hitr)
{
osg::NodePath path = hitr-nodePath;
for(osg::NodePath::iterator hitNodeIt = path = hitr-nodePath.begin();
hitNodeIt != path = hitr-nodePath.end(); ++hitNodeIt)
{
if (hitNodeIt-getName())
{
nodeFound = true;
std::cout hitNodeIt-getName();
}
}
if (nodeFound) break;
}
Then I got:
IntelliSense: Es ist keine passende benutzerdefinierte Konvertierung von
std::_Vector_const_iteratorstd::_Vector_valosg::Node *,
std::allocatorosg::Node * in
std::_Vector_iteratorstd::_Vector_valosg::Node *,
std::allocatorosg::Node * vorhanden.
So I tried this:
Code:
bool nodeFound = false;
for(osgUtil::LineSegmentIntersector::Intersections::iterator hitr =
intersections.begin(); hitr != intersections.end(); ++hitr)
{
for(osg::NodePath::const_iterator hitNodeIt = hitr-nodePath.begin();
hitNodeIt != hitr-nodePath.end(); ++hitNodeIt)
{
if (hitNodeIt-getName())
{
nodeFound = true;
std::cout hitNodeIt-getName();
}
}
if (nodeFound) break;
}
But this won't compile too:
error C2039: 'getName': Ist kein Element von
'std::_Vector_const_iterator_Myvec'
error C2839: Ungültiger Rückgabetyp 'osg::Node *const *' für überladenen
Operator '-'
IntelliSense: Der Ausdruck muss den Typ pointer-to-class aufweisen.
Any idea?
Heiko
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Re: [osg-users] LineSegmentIntersector which objects are returned?
Hi, you are right :). I tried this myself before and saw that VS show me nevertheless an error. But didnt seen that the error message changed (I had forgot the .empty() on comparism) ;) Thank you! Cheers, Heiko -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=36562#36562 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] LineSegmentIntersector which objects are returned?
Hi, I have a simple question to LineSegmentIntersector: Which objects can be intersect with the test ray? I ask because I have following problem: I have following osg tree: - Geode -Field - Node (Model loaded from disc) - Contains Name obj1 by Model (so not set by my - don't want to presume that the name is everytime same) - Geode (single quad of the ground of terrain) - Name: Ground - Geometry (4 vertices) If I do now a klick I got following names returned: obj1, obj1, obj, ..., Ground (Model is a Firetree - many intersections). But never the name Field. So the problem is: I can't assume that the Model has name obj1. That is why I think I must additional geode around it with an extra class, so I can check with dynamic_cast if the test ray had found an interesting object or not. But this don't work, if I dont get the Field-Geode returned. How to handle this problem? (osgPick-Demo is to simple to see a solution :( ) Thank you! Cheers, Heiko -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=36399#36399 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] setNumMultiSamples not independ to setUpViewInWindow ?
Hi, I have wondered me on my project, why antialising, which I had activated, was broken. Now I found the resolution, but I don't know why this fixed it. When I call: Code: _viewer.setUpViewInWindow( 100, 100, 1024, 768 ); osg::DisplaySettings::instance()-setNumMultiSamples(4); it don't works. But if I use Code: osg::DisplaySettings::instance()-setNumMultiSamples(4); _viewer.setUpViewInWindow( 100, 100, 1024, 768 ); it works. But why? Or is it a bug? Thank you! Cheers, Heiko -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=36151#36151 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [build] Can't compile own project as release build
Hi, since some SVN versions i'm not anymore able to compile my project as release build. Debug build works without problems. I get following error by VS 2010: Fehler2 error LNK2001: Nicht aufgelöstes externes Symbol public: virtual void __thiscall osg::BufferData::releaseGLObjects(class osg::State *)const (?releaseglobje...@bufferdata@osg@@ubexpavst...@2@@Z). C:\Users\SunBlack\Desktop\GP\build\main.obj Towerdefense Fehler1 error LNK2001: Nicht aufgelöstes externes Symbol public: virtual void __thiscall osg::BufferData::resizeGLObjectBuffers(unsigned int) (?resizeglobjectbuff...@bufferdata@osg@@ua...@z). C:\Users\SunBlack\Desktop\GP\build\main.obj Towerdefense Interesting is: Notepad++ found releaseglobje...@bufferdata in osgd.lib and osgrd.lib, but not in osg.lib and osgr.lib. Any idea why? Thank you! Cheers, Heiko -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35148#35148 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [build] Can't compile own project as release build
You are right. It looks like a mistaken by me. I had compile osg two times: Debug and RelWithDbgInfo. I had think, that Debug creates osgd.lib and RelWithDbgInfo osg.lib with additional debug files (pdm and so on). But it seems RelWithDbgInfo is not that, what I have expected, so I must compile RelWithDbgInfo and Release to get libs for both versions. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35152#35152 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
