Re: [osg-users] 2D orthographic view with panning and zooming
Hi,
If think if you set viewer-setCameraManipulator( 0 ) the view matrix won't be
overwritten by any camera manipulator. I haven't tried it recently but I think
that's how it works.
Otherwise maybe this could work:
Code:
while( !viewer-done() )
{
viewer-advance();
viewer-eventTraversal();
viewer-updateTraversal();
// Modify view matrix here
viewer-renderingTraversals();
}
Thank you!
Cheers,
David
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Re: [osg-users] Calculating variables for setProjectionMatrixAsOrtho2D
Hi,
I made a small test application. Try it out if you want to and see it it works
and does what you want.
Code:
int main( int argc, char **argv )
{
osg::Group *root = new osg::Group;
osg::Group *scene = GetScene(); // - Cows, planes and stuff
root-addChild( scene );
// Graphics Context and Traits
osg::ref_ptrosg::GraphicsContext::Traits traits = new
osg::GraphicsContext::Traits;
traits-windowName = Test app;
traits-screenNum = 0;
traits-x = 0;
traits-y = 0;
traits-width = WIDTH;
traits-height = HEIGHT;
traits-windowDecoration = false;
traits-doubleBuffer = true;
traits-sharedContext = 0;
traits-samples = 8;
traits-useCursor = true;
traits-alpha = 1.0;
const std::string version( 3.1 );
traits-glContextVersion = version;
osg::ref_ptrosg::GraphicsContext gc =
osg::GraphicsContext::createGraphicsContext( traits.get() );
// Viewer
osg::ref_ptrosgViewer::Viewer viewer = new osgViewer::Viewer();
viewer-getCamera()-setProjectionMatrixAsOrtho( -100, 100, -100, 100,
-100, 100 );
viewer-getCamera()-setCullingMode( osg::CullSettings::NO_CULLING );
viewer-getCamera()-setComputeNearFarMode(
osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR );
viewer-getCamera()-setGraphicsContext( gc.get() );
viewer-getCamera()-setViewport( new osg::Viewport( 0, 0, WIDTH,
HEIGHT) );
viewer-setThreadingModel( osgViewer::ViewerBase::SingleThreaded );
viewer-setCameraManipulator( new osgGA::TrackballManipulator );
viewer-setSceneData( root );
viewer-realize();
while( !viewer-done() )
{
viewer-advance();
viewer-eventTraversal();
viewer-updateTraversal();
viewer-renderingTraversals();
}
return 0;
}
Thank you!
Cheers,
David
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Re: [osg-users] Calculating variables for setProjectionMatrixAsOrtho2D
Hi, Maybe it's your near far values. Your model might be placed in origo with bounds smaller than 1. And your near value starts at 1. Try: Code: Viewer-getCamera()-setProjectionMatrixAsOrtho(bb.xMin(),bb.xMax(),bb.yMin(),bb.yMax(),-100,100); Thank you! Cheers, David -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=59677#59677 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Problem with fullscreen hiding dialog window
Hi, I run my osg program in fullscreen mode by setting traits width height to the same as desktop, x and y position to 0 and disabling window decoration. This prevents my windows file input dialog to show (it opens behind the osg window and I need to alt+tab to it). It shows at top level when running in a smaller osg window that doesn't cover the the whole desktop. Can I set the osg window options to have full screen specifications without the program going into fullscreen mode? Just having the window floating on top. I use http://msdn.microsoft.com/en-us/library/windows/desktop/bb776913%28v=vs.85%29.aspx to open the file dialog on Windows 7 x64 and OSG version 3.1.3. Maybe there are better approaches to do this? Thank you! Cheers, David -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53075#53075 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Problem with fullscreen hiding dialog window
It doesn't seem to be a flag for that, not that I can see. But I don't have any experince of the windows api. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=53080#53080 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Problem with fullscreen hiding dialog window
Here's the code which is basically the same as in the link in my initial post,
slightly modified.
Code:
// Indices of file types
#define INDEX_COLLADA 1
#define INDEX_OPENSCENEGRAPH 2
#define INDEX_KEYHOLEMARKUPLANGUAGE 3
#define INDEX_ALLFILES 4
#define FILE_TYPE_MODELS 1
#define FILE_TYPE_IMAGES 2
#define FILE_TYPE_TERRAFORM 3
class CDialogEventHandler : public IFileDialogEvents,
public
IFileDialogControlEvents
{
public:
// IUnknown methods
IFACEMETHODIMP QueryInterface(REFIID riid, void** ppv)
{
static const QITAB qit[] = {
QITABENT(CDialogEventHandler, IFileDialogEvents),
QITABENT(CDialogEventHandler, IFileDialogControlEvents),
{ 0 },
};
return QISearch(this, qit, riid, ppv);
}
IFACEMETHODIMP_(ULONG) AddRef()
{
return InterlockedIncrement(_cRef);
}
IFACEMETHODIMP_(ULONG) Release()
{
long cRef = InterlockedDecrement(_cRef);
if (!cRef)
delete this;
return cRef;
}
// IFileDialogEvents methods
IFACEMETHODIMP OnFileOk(IFileDialog *) { return S_OK; };
IFACEMETHODIMP OnFolderChange(IFileDialog *) { return S_OK; };
IFACEMETHODIMP OnFolderChanging(IFileDialog *, IShellItem *) { return
S_OK; };
IFACEMETHODIMP OnHelp(IFileDialog *) { return S_OK; };
IFACEMETHODIMP OnSelectionChange(IFileDialog *) { return S_OK; };
IFACEMETHODIMP OnShareViolation(IFileDialog *, IShellItem *,
FDE_SHAREVIOLATION_RESPONSE *) { return S_OK; };
IFACEMETHODIMP OnTypeChange(IFileDialog *pfd) { return S_OK; };
IFACEMETHODIMP OnOverwrite(IFileDialog *, IShellItem *,
FDE_OVERWRITE_RESPONSE *) { return S_OK; };
// IFileDialogControlEvents methods
IFACEMETHODIMP OnItemSelected(IFileDialogCustomize *pfdc, DWORD
dwIDCtl, DWORD dwIDItem) { return S_OK; };
IFACEMETHODIMP OnButtonClicked(IFileDialogCustomize *, DWORD) { return
S_OK; };
IFACEMETHODIMP OnCheckButtonToggled(IFileDialogCustomize *, DWORD,
BOOL) { return S_OK; };
IFACEMETHODIMP OnControlActivating(IFileDialogCustomize *, DWORD) {
return S_OK; };
CDialogEventHandler() : _cRef(1) { };
private:
~CDialogEventHandler() { };
long _cRef;
};
// Instance creation helper
HRESULT CDialogEventHandler_CreateInstance(REFIID riid, void **ppv)
{
*ppv = NULL;
CDialogEventHandler *pDialogEventHandler = new (std::nothrow)
CDialogEventHandler();
HRESULT hr = pDialogEventHandler ? S_OK : E_OUTOFMEMORY;
if (SUCCEEDED(hr))
{
hr = pDialogEventHandler-QueryInterface(riid, ppv);
pDialogEventHandler-Release();
}
return hr;
}
HRESULT basicFileOpen(std::wstring foundPath, int fileTypes )
{
// CoCreate the File Open Dialog object.
IFileDialog *pfd = NULL;
HRESULT hr = CoCreateInstance(CLSID_FileOpenDialog,
NULL,
CLSCTX_INPROC_SERVER,
IID_PPV_ARGS(pfd));
pfd-SetTitle( LUrban Explorer - Open );
const COMDLG_FILTERSPEC modelSaveTypes[] =
{
{LCOLLADA (*.dae), L*.dae},
{LOpenSceneGraph (*.osg; *.osgb), L*.osg;*.osgb},
{LKeyhole Markup Language (*.kmz), L*.kmz},
{LAll Files (*.*), L*.*}
};
const COMDLG_FILTERSPEC imageSaveTypes[] =
{
{LPNG (*.png), L*.png},
{LJPG (*.jpg), L*.jpg},
{LAll Files (*.*), L*.*}
};
const COMDLG_FILTERSPEC terraformSaveTypes[] =
{
{LTFI (*.terraformImage), L*.terraformImage},
{LAll Files (*.*), L*.*}
};
if (SUCCEEDED(hr))
{
// Create an event handling object, and hook it up to
the dialog.
IFileDialogEvents *pfde = NULL;
hr =
CDialogEventHandler_CreateInstance(IID_PPV_ARGS(pfde));
if (SUCCEEDED(hr))
{
// Hook up the event handler.
DWORD dwCookie;
hr = pfd-Advise(pfde, dwCookie);
if (SUCCEEDED(hr))
Re: [osg-users] Uniform arrays not working for me using Visual Studio 2010
Version 3.1.3 worked! Thank you everyone for your help. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50860#50860 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Uniform arrays not working for me using Visual Studio 2010
Hi,
I ported my program from mingw and Code Blocks to Visual Studio 2010 Express
and found that I couldn't get uniform arrays to work. Has anyone experienced
this? I'm new to Visual Studio so I might have missed something.
I made a small test program that works on my old system but not on my new
system:
(sorry for the weird symbols and that the include dirs fell off)
Code:
#include osg/Group
#include osgDB/ReadFile
#include osgViewer/Viewer
#include osgGA/TrackballManipulator
int main( int argc, char **argv )
{
osg::setNotifyLevel( osg::WARN );
osg::Group *root = new osg::Group;
std::string url = cow.osg;
osg::Node* modelNode = osgDB::readNodeFile( url );
//setup shaders
osg::Shader *vertshader = new osg::Shader( osg::Shader::VERTEX );
vertshader-loadShaderSourceFromFile( uniformarray.vert );
osg::Shader *fragshader = new osg::Shader( osg::Shader::FRAGMENT );
fragshader-loadShaderSourceFromFile( uniformarray.frag );
osg::Program *shaderprog = new osg::Program();
shaderprog-addShader( vertshader );
shaderprog-addShader( fragshader );
modelNode-getOrCreateStateSet()-setAttributeAndModes( shaderprog );
// Array uniform
osg::Uniform *arrayUFM = new osg::Uniform( osg::Uniform::FLOAT, array, 2
);
arrayUFM-setElement( 0, 0.5f );
arrayUFM-setElement( 1, 1.0f );
modelNode-getOrCreateStateSet()-addUniform( arrayUFM );
root-addChild( modelNode );
// Graphics Context and Traits
osg::ref_ptrosg::GraphicsContext::Traits traits = new
osg::GraphicsContext::Traits;
traits-x = 10;
traits-y = 10;
traits-width = 800;
traits-height = 600;
traits-doubleBuffer = true;
const std::string version( 3.1 );
traits-glContextVersion = version;
osg::ref_ptrosg::GraphicsContext gc =
osg::GraphicsContext::createGraphicsContext( traits.get() );
// Viewer
osg::ref_ptrosgViewer::Viewer viewer = new osgViewer::Viewer();
viewer-getCamera()-setGraphicsContext( gc.get() );
viewer-getCamera()-setViewport( new osg::Viewport( 0, 0, traits-width,
traits-height ) );
viewer-setSceneData( root );
viewer-setCameraManipulator( new osgGA::TrackballManipulator() );
viewer-run();
return 0;
}
Vertex shader:
Code:
#version 140
uniform mat4 osg_ModelViewProjectionMatrix;
in vec4 osg_Vertex;
void main()
{
gl_Position = osg_ModelViewProjectionMatrix * osg_Vertex;
};
Fragment shader using the array:
Code:
#version 140
uniform float array[2];
out vec4 fragData;
void main()
{
fragData = vec4( 1.0, array[0], array[1], 1.0 );
}
Old system:
OSG 3.0 (revision 12753)
MinGW and Code Blocks
NVIDIA GEFORCE 260
WIN 7
New system
OSG 3.0.1 (stable release)
Visual C++ 2010 Express
NVIDIA GEFORCE 680
WIN 7
Thank you!
Cheers,
David[/code]
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Re: [osg-users] Problem DatabasePager, setTargetFrameRate and setMaximumNumOfObjectsToCompilePerFrame with osg 2.9.11
Hi, DanDan, what graphics card do you use? I've experienced the same problem when running my application with NVIDIA Quadro FX cards (4800 and 5800), but never with GeForce cards. Unfortunately, I have very limited debugging possibilities on the deployment system where this problem occurs. There's one machine (out of 11) not having this problem and it uses a GeForce card instead of a Quadro. Also, my development machines use GeForce cards and works fine too. If you solve anything, please let me know! I'll do the same. Thank you! Cheers, David -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=40658#40658 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Multiple UV-sets
Ok, found it. Simply the unit parameter in voidsetTexCoordArray (unsigned int unit, Array *) I will continue to look for the problem in the COLLADA-plugin -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34253#34253 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Multiple UV-sets
Hi, Is it possible to have more than 1 UV-set assigned to a geometry? I loaded a COLLADA-file, exported from Maya, with osgviewer but all textures use the first UV-set. Thank you! Cheers, David -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34221#34221 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] DatabasePager random crash
Ok, I'll upgrade as soon as possible then. Thank you! Cheers, David -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=28170#28170 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] DatabasePager random crash
Hi, I have a program that uses a paged database for rendering a terrain. It works great on my own computer using Windows 7 and compiling with mingw. But when running it on the deployment environment that uses windows XP machines (with high quality hardware) it crashes randomly. I get a windows error message, the program continues, but the database paging stops. It feels like the poor threading capabilities of windows XP could be the problem. There is a lot of settings that can be investigated in the DatabasePager class, and wonder which ones that could make a difference? Has anyone experienced anything similar? I use OSG 2.9.6, and am not able to upgrade to a later version at this point. Unfortunately, I have limited access and debugging possibilities to the environment where the problem occurs. Thank you! Cheers, David -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=28151#28151 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Mouse movement to control camera yaw and pitch
I think the FRAME event is detected when no other input is. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=24983#24983 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
