int main( int argc, char **argv )
{
osg::ArgumentParser arguments(&argc,argv);
osgViewer::Viewer viewer(arguments);
viewer.setThreadingModel(osgViewer::Viewer::SingleThreaded);
// use new #pragma(tic) shader composition.
osg::ref_ptr<osg::Node> scenegraph = createNewShaderCompositionScene(arguments);
if (!scenegraph) return 1;
osg::ref_ptr<osg::StateSet> stateSet = scenegraph->getOrCreateStateSet();
osg::MatrixfArrayUniform* LRuniform = stateSet->getOrCreateUniform<osg::MatrixfArrayUniform>("transform_block");
LRuniform->resize(2);
viewer.setSceneData(scenegraph.get());
viewer.realize();
double width = viewer.getCamera()->getViewport()->width();
double height = viewer.getCamera()->getViewport()->height();
stateSet->setAttribute(new osg::ViewportIndexed(0, 0.0, 0.0, width * 0.5, height)); // left
stateSet->setAttribute(new osg::ViewportIndexed(1, width * 0.5, 0.0, width * 0.5, height)); // right
osg::Camera *cam = viewer.getCamera();
osg::Matrix matrixL = cam->getProjectionMatrix();
LRuniform->setElement(0, matrixL);
double l, r, b, t, n, f;
matrixL.getFrustum(l, r, b, t, n, f);
osg::Matrix matrixR;
matrixR.makeFrustum(l * 2.0, r* 2.0, b* 2.0, t* 2.0, n, f);
LRuniform->setElement(1, matrixR);
return viewer.run();
}
int main( int argc, char **argv )
{
osg::ArgumentParser arguments(&argc,argv);
osgViewer::Viewer viewer(arguments);
viewer.setThreadingModel(osgViewer::Viewer::SingleThreaded);
if (arguments.read("--old"))
{
// use deprecated shader composition infrastructure
osg::ref_ptr<osg::Node> scenegraph = createOldShaderCompositionScene(arguments);
if (!scenegraph) return 1;
viewer.setSceneData(scenegraph.get());
viewer.realize();
// enable shader composition
osgViewer::Viewer::Windows windows;
viewer.getWindows(windows);
for(osgViewer::Viewer::Windows::iterator itr = windows.begin();
itr != windows.end();
++itr)
{
(*itr)->getState()->setShaderCompositionEnabled(true);
}
}
else
{
// use new #pragma(tic) shader composition.
osg::ref_ptr<osg::Node> scenegraph = createNewShaderCompositionScene(arguments);
if (!scenegraph) return 1;
viewer.setSceneData(scenegraph.get());
}
return viewer.run();
}
