Re: [osg-users] [3rdparty] OSG and SDL
Hi Matt, I'd recommend using SDL for joystick input and osgViewer for windowing as the later has far more flexible and powerful windowing and threading support. An example of mixing SDL for joystick input and osgViewer for windowing can be found in the applications/present3D application. Robert. On Tue, Sep 28, 2010 at 6:33 PM, Matt Caron mcindafi...@gmail.com wrote: Hi, I am using SDL to get input from a joystick so that I can integrate joystick control in OSG (I have tried the VRPN approach and right now SDL is looking better for my needs). I have searched for as much information about integrating OSG and SDL as possible, and so far it appears that I must use SDL windows and have OSG draw to SDL windows, instead of OSG using its own windowing system. Does anyone know if this assertion is accurate? Is there any way to connect SDL through an OSG Viewer? All I care about are the input events associated with the joystick... Thank you! Cheers, Matt -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=32147#32147 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [3rdparty] OSG and SDL
Hi, I am using SDL to get input from a joystick so that I can integrate joystick control in OSG (I have tried the VRPN approach and right now SDL is looking better for my needs). I have searched for as much information about integrating OSG and SDL as possible, and so far it appears that I must use SDL windows and have OSG draw to SDL windows, instead of OSG using its own windowing system. Does anyone know if this assertion is accurate? Is there any way to connect SDL through an OSG Viewer? All I care about are the input events associated with the joystick... Thank you! Cheers, Matt -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=32147#32147 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [3rdparty] OSG and SDL
If you just want to use SDL to read joystick inputs, you don't have to use SDL windows. You can use SDL for joystick inputs, and render OGS to windows managed by Qt, CEGUI, or whatever meets your needs. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [3rdparty] OSG and SDL
Perhaps I just don't know enough about whats going on in my OSG build...but
right now I can just instantiate and start a Viewer in OSG and it automatically
opens a window and handles drawing for me. Is there a way to go about using
OSG this same way but to incorporate SDL?
Right now when I try to grab SDL events while also running an osgViewer, my
main function just exits as if the osgViewer isn't blocking the thread.
My main function has the following code:
Code:
if( SDL_Init(SDL_INIT_JOYSTICK) 0)
{
std::cerr unable to init SDL: SDL_GetError() '\n';
return false;
}else{
std::clog Init'd Joystick :) std::endl;
}
std::atexit(SDL_Quit);
if( SDL_NumJoysticks() == 0 )
{
std::cerr no joysticks found\n;
return false;
}else{
std::clog Found SDL_NumJoysticks() joysticks :)
std::endl std::endl;
for(int i = 0; i SDL_NumJoysticks(); ++i)
{
std::clog Joystick (i + 1) :
SDL_JoystickName(i) std::endl std::endl;
}
}
SDL_Joystick *joystick;
SDL_JoystickEventState(SDL_ENABLE);
joystick = SDL_JoystickOpen(0);
int running = true;
SDL_Event event;
std::clog Left/Right axis: SDL_JoystickGetAxis(joystick, 0)
std::endl;
std::clog Up/Down axis: SDL_JoystickGetAxis(joystick, 1)
std::endl;
// construct the viewer
osg::ref_ptrosgViewer::Viewer viewer = new osgViewer::Viewer;
// make the viewer create a 512x512 window and position it at 32, 32
viewer-setUpViewInWindow( 32, 32, 512, 512 );
// set the scene-graph data the viewer will render
viewer-setSceneData( CreateScene() );
// execute main loop
return viewer-run();
I'm just trying to initialize SDL, grab initial joystick data to prove I am
connected to it, then start the osgViewer. However, the OSG window never pops
up...
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=32151#32151
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