Hi Christoffer,
The OSG does absolutely nothing with standard input, go have a look at
the whole source code base. standard error and standard output are
used for debug and info messages but nothing is read.
So... this has to be a non OSG specific programming question, which I
suspect is likely to be down to a platform oddity on the platform you
are using.
Using standard input is a bit unusual for a rendering application,
might I suggest you just read the keyboard input from the actual
rendering window itself?
Robert.
On 11 September 2012 09:20, Christoffer Pettersson <hoffe...@hotmail.com> wrote:
> Hello, I'm trying to write a program where the renderer is running on a
> separate thread. On the main thread I want to control the command line inputs
> but as soon as I add scenedata to the osgViewer which is stored in the
> renderer then the renderer takes over the standard input. std::cin in the
> main thread is ignored. If I put std::cin in the renderer thread however the
> program pauses and expects an input from the command line.
>
> Does anyone know how I can prevent osgViewer from taking over the command
> line? I have attached sample code to this post where I demonstrate the
> problem.
>
>
> Code:
>
> #include
> #include
> #include
>
> class MiniRenderer: public OpenThreads::Thread
> {
> public:
> void addModel(osg::Node* node)
> {
> _nodes.push_back(node);
> }
>
> void run()
> {
> _viewer.setUpViewInWindow(0, 0, 640, 480);
> _viewer.realize();
> _sceneRoot = new osg::Group;
> _run = true;
> while(_run)
> {
> if(_nodes.size()>0)
> {
> for(unsigned int i = 0; i < _nodes.size(); ++i)
> _sceneRoot->addChild(_nodes[i]);
> _nodes.clear();
> _viewer.setSceneData(_sceneRoot.get());
> }
> int test = -2;
> std::cout << "In Thread: " << std::endl;
> std::cin >> test;
> std::cout << "In Thread : " << test << std::endl;
> _viewer.frame();
> }
> }
> bool _run;
> osg::ref_ptr _sceneRoot;
> osgViewer::Viewer _viewer;
> std::vector > _nodes;
> };
>
>
> int main( int argc, char **argv )
> {
> std::cout << "Starting thread" << std::endl;
> MiniRenderer *minirenderer = new MiniRenderer();
> mr->startThread();
>
> osg::ref_ptr root = osgDB::readNodeFile("cessna.osg");
> minirenderer->addModel(root);
> int test = -1;
>
> std::cout << "Main cin" << std::endl;
> std::cin >> test;
> std::cout << "Main cin: " << test << std::endl;
>
> while(true)
> {
>
> }
> return 0;
> }
>
>
>
>
> Kind Regards
> Hoffe
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=49913#49913
>
>
>
>
>
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> osg-users mailing list
> osg-users@lists.openscenegraph.org
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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