podsvirov / osgqtquick

Intergation OpenSceneGraph to Qt Quick

osgQtQuick - OpenSceneGraph QML Modules

Intergation OpenSceneGraph to Qt Quick.

Reference Documentation

Please visit documentation pages.

Source Code

Actual development code avaliable in develop branch.

Prebuilt Binaries

MSYS2 Project

Now it's distributed as package of MSYS2 distro. Type in the appropriate shell:

pacman -S mingw-w64-i686-osgQtQuick

or

pacman -S mingw-w64-x86_64-osgQtQuick

or

pacman -S mingw-w64-ucrt-x86_64-osgQtQuick

Dependencies

• Qt >= 5.0.0
• OpenSceneGraph >= 3.3.2

Threaded Rendering

The osgQtQuick is now support all QtQuick render loop types. But if your application has problems on startup or resize the window, try to set a environment variable "QSG_RENDER_LOOP" to the value of "basic", "windows" or "threaded".

Related Links

• The wiki pages.
• The library page at inqlude project.
• The discussion thread at Qt forum.

Similar Projects

• qmlosg - Integration test of osg and qt quick + qml framework
• QtQuick2OSGItem - small package allowing to embed OpenSceneGraph scenes as visual items in Qt Quick 2 applications

osgqtquick's Issues

View doesn't work in a QQuickWidget

Hi,

I'm unable to add a view to a QML file shown in a QQuickWidget. It either crashes the application (by default, as it detects the renderloop type to be threaded), or it cannot render properly. I've tested only on windows. I guess the reason is because QQuickWidget has a different rendering loop than the ones supported by OsgQtQuick. In their implementation, threaded renderloop is actually disabled. It'd be wonderful if the support for QQuickWidget can be added.

Thanks,
Piyoosh

building in linux

I've built the library in Ubuntu 16.04, Qt version 5.9.6 and OSG version 3.4.0
When trying the test view.qml I get the following error

Automatic type dump of QML module failed.
Errors:
"/home/mnana/Qt/5.9.6/gcc_64/bin/qmlplugindump" returned exit code 2.
Arguments: -nonrelocatable osg 2.0 .
Error: SEGV
While processing the property 'osg::ShapeDrawableQtQml::shape', which probably has uninitialized data.


QML module does not contain information about components contained in plugins.

Module path: /home/mnana/dev/osgqtquick/build/qml/osgText
See "Using QML Modules with Plugins" in the documentation.

Automatic type dump of QML module failed.
Errors:
"/home/mnana/Qt/5.9.6/gcc_64/bin/qmlplugindump" returned exit code 2.
Arguments: -nonrelocatable osgText 2.0 .
Error: SEGV
While processing the property 'osgText::Text3DQtQml::style', which probably has uninitialized data.

Do you know what could be the problem?

Android build.

I've faced with problem building Android version of this library. At least this library requires osgQt but OpenSceneGraph (at least since version 3.4.0) doesn't contain osgQt library for Android builds.

Is it possible to build this library for Android?

Failed to build because OSG 3.6.2 remove some of osgText::Font methods

Hello,

Since OSG 3.6.2 (this commit), the osgText::Font does not contain methods getGlyphImageMargin and setGlyphImageMargin anymore.
They move theses methods to osgText::Glyph with : setTexelMargin and getTexelMargin.

The building of osgqtquick fails due to these changes.
Is it possible to fix this ? I tried myself but I was not able to understand how to deal with the new class osgText::Glyph which is used now.

Thanks for all your work :)

Regards,
Tom

HUD camera doesn't work in osgqtquick

Hi,
I try to use StatsHandler to handle for adding on screen stats reporting to Viewers. but it doesn't work, there are nothing display in screen when I pressed 's' key, I also tried others feature that need HUD camera like HUD text, it doesn't work too.
Hope you can solve this problem, thanks!

How To Enable Anti-Aliasing in View Components

Scenes rendered within OSG View QML components do not have anti-aliasing applied. What is the correct way to enable anti-aliasing for such scenes?

I have tried the following approaches but to no avail:

• Enable multi-sampling on default QSurfaceFormat (see https://stackoverflow.com/a/49576756).
• Call osg::DisplaySettings::setNumMultiSamples() in main function of application.

Adding nodes over the map causes glitching.

I wrote a sample application that shows the Earth in two views, using the sample QML from tests/earth.qml and tests/multiview.qml. When I added some nodes from C++ (not QML) over the map, it started to glitch. If I rotate the Earth in a view so that the text label (annotation) becomes invisible, the Earth in other view becomes black, see video. See the link to the source code.

Crash QML window on creating osgViewer.View object

Segmentation fault error on creating osgViewer.View object caused by null current QOpenGLContext.

https://github.com/podsvirov/osgqtquick/blob/develop/src/quick/window.cpp#L60

OS Windows x64, compiler mingw492_32 from Qt5.5.

The osgQtQuick project source code does not contain license text

I'm not well versed in licensing issues. The osgQtQuick project is developed on the basis of OpenSceneGraph and Qt projects.

It seems to me that LGPLv2.1 licensing is appropriate in the general case, but, maybe, there are exceptions.

I just want the project to be useful.

I will be grateful if someone will help me on this matter.

osgQtQuick can use .earth file, but when i use earth's some Advanced Features. find error

hi:
osgQtQuick can use .earth file, but when I use earth's some Advanced Features. such as "terrain-gpu", or "terrain-drape", viewport don't display anything, just black。 with osgearth/tests/feature_draped_polygons.earth can reappear this issue.

thanks

Rendering outside a View Glitches

Hello,

I try to embed a View in application with Quick Controls 2, but they are some glitches :

• The ApplicationWindow rendering fails : it has black background (and I cannot change it)
• Widgets are correctly rendering when they are inside a View, but if I put them outside the rendering is not correct. (See Video.zip)

You can find the minimal example I use in video here

I tried to change the QSG_RENDER_LOOP both to threaded and basic but same results happened.

May be the rendering process has some difficulties to sync Qt rendering loop with osg rendering loop ?
I use Qt 5.9 on Windows 10.

Thanks :)

Drawing overlapping rectangles over a View freezes the application

I've been displaying an OSG View and I was able to paint a rectangle over it fine. However, when that rectangle has another rectangle in it, the application freezes.
Just found this issue. Will post more details once I investigate it further.

undeclared identifier 'loopType'

when build in OSX it error with below log:
/Volumes/Work/OSG/osgqtquick-2.0.0.8/src/quick/window.cpp:62:13: error: use of
undeclared identifier 'loopType'
loopType = ThreadedRenderLoop;

It build success after replacing loopType with renderLoopType
is it a bug?

Changing the camera in a view

I tried to set a view's camera to a different one that I configured in C++, but it didn't work. I get a grey blank display. Also, for a custom HUD camera kind of object (to render axes), I tried to use the view's camera for, but again it causes some crashes. I'll probably need some help with understanding the issue and then resolving it. This issue may be similar to #13. I hope we can discuss this soon.

how can i get osgViewer ptr?

i want use c++ code add some feature, in this way, it must get osgviewer pointer, how can i get it?

osgqtquick does not build with latest osgQt

As of openscenegraph/osgQt#22 as far as I can tell which is effectively a full rewrite.