FGFS-4.1/OpenSceneGraph
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Ported osgcopy, osgcubemap, osgdelaunay, osgdepthpartion, osgdistortion, osgfadetext, osgforest and osgfxbrowser to osgViewer

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This commit is contained in:
Robert Osfield
2007-01-06 21:35:57 +00:00
parent 0cd64c8c4f
commit 19a7ec0f6b
33 changed files with 160 additions and 607 deletions
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125
examples/osgfadetext/osgfadetext.cpp
View File

@@ -1,4 +1,4 @@
#include <osgProducer/Viewer>
#include <osgViewer/Viewer>
#include <osg/Group>
#include <osg/Geode>
@@ -19,25 +19,48 @@
#include <osgSim/OverlayNode>
#include <osgSim/SphereSegment>
#include <osgGA/NodeTrackerManipulator>
#include <osgGA/TerrainManipulator>
class GraphicsContext {
#include <iostream>
class MyGraphicsContext {
public:
GraphicsContext()
MyGraphicsContext()
{
rs = new Producer::RenderSurface;
rs->setWindowRectangle(0,0,1,1);
rs->useBorder(false);
rs->useConfigEventThread(false);
rs->realize();
}
osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits;
traits->x = 0;
traits->y = 0;
traits->width = 1;
traits->height = 1;
traits->windowDecoration = false;
traits->doubleBuffer = false;
traits->sharedContext = 0;
traits->pbuffer = true;
virtual ~GraphicsContext()
{
_gc = osg::GraphicsContext::createGraphicsContext(traits.get());
if (!_gc)
{
osg::notify(osg::NOTICE)<<"Failed to create pbuffer, failing back to normal graphics window."<<std::endl;
traits->pbuffer = false;
_gc = osg::GraphicsContext::createGraphicsContext(traits.get());
}
if (_gc.valid())
{
_gc->realize();
_gc->makeCurrent();
std::cout<<"Realized window"<<std::endl;
}
}
bool valid() const { return _gc.valid() && _gc->isRealized(); }
private:
Producer::ref_ptr<Producer::RenderSurface> rs;
osg::ref_ptr<osg::GraphicsContext> _gc;
};
osg::Node* createEarth()
@@ -59,8 +82,8 @@ osg::Node* createEarth()
source->setCoordinateSystemPolicy(osgTerrain::DataSet::Source::PREFER_CONFIG_SETTINGS);
source->setCoordinateSystem(osgTerrain::DataSet::coordinateSystemStringToWTK("WGS84"));
source->setGeoTransformPolicy(osgTerrain::DataSet::Source::PREFER_CONFIG_SETTINGS_BUT_SCALE_BY_FILE_RESOLUTION);
source->setGeoTransformFromRange(-180.0, 180.0, -90.0, 90.0);
source->setGeoTransformPolicy(osgTerrain::DataSet::Source::PREFER_CONFIG_SETTINGS_BUT_SCALE_BY_FILE_RESOLUTION);
source->setGeoTransformFromRange(-180.0, 180.0, -90.0, 90.0);
dataSet->addSource(source);
}
@@ -73,7 +96,7 @@ osg::Node* createEarth()
// load the source data and record sizes.
dataSet->loadSources();
GraphicsContext context;
MyGraphicsContext context;
dataSet->createDestination(30);
if (dataSet->getDatabaseType()==osgTerrain::DataSet::LOD_DATABASE) dataSet->buildDestination();
@@ -152,46 +175,13 @@ osg::Node* createFadeText(osg::EllipsoidModel* ellipsoid)
}
int main(int argc, char **argv)
int main(int, char**)
{
// use an ArgumentParser object to manage the program arguments.
osg::ArgumentParser arguments(&argc,argv);
// set up the usage document, in case we need to print out how to use this program.
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the example which demonstrates use of node tracker.");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName());
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
// construct the viewer.
osgProducer::Viewer viewer(arguments);
osgViewer::Viewer viewer;
// set up the value with sensible default event handlers.
viewer.setUpViewer(osgProducer::Viewer::STANDARD_SETTINGS);
viewer.getCullSettings().setComputeNearFarMode(osg::CullSettings::COMPUTE_NEAR_FAR_USING_PRIMITIVES);
viewer.getCullSettings().setNearFarRatio(0.00001f);
// get details on keyboard and mouse bindings used by the viewer.
viewer.getUsage(*arguments.getApplicationUsage());
// if user request help write it out to cout.
if (arguments.read("-h") || arguments.read("--help"))
{
arguments.getApplicationUsage()->write(std::cout);
return 1;
}
// any option left unread are converted into errors to write out later.
arguments.reportRemainingOptionsAsUnrecognized();
// report any errors if they have occured when parsing the program aguments.
if (arguments.errors())
{
arguments.writeErrorMessages(std::cout);
return 1;
}
viewer.getCamera()->setComputeNearFarMode(osg::CullSettings::COMPUTE_NEAR_FAR_USING_PRIMITIVES);
viewer.getCamera()->setNearFarRatio(0.00001f);
// read the scene from the list of file specified commandline args.
osg::ref_ptr<osg::Node> root = createEarth();
@@ -207,33 +197,8 @@ int main(int argc, char **argv)
// add fade text around the globe
csn->addChild(createFadeText(csn->getEllipsoidModel()));
}
// create the windows and run the threads.
viewer.realize();
viewer.setCameraManipulator(new osgGA::TerrainManipulator);
while( !viewer.done() )
{
// wait for all cull and draw threads to complete.
viewer.sync();
// update the scene by traversing it with the the update visitor which will
// call all node update callbacks and animations.
viewer.update();
// fire off the cull and draw traversals of the scene.
viewer.frame();
}
// wait for all cull and draw threads to complete.
viewer.sync();
// run a clean up frame to delete all OpenGL objects.
viewer.cleanup_frame();
// wait for all the clean up frame to complete.
viewer.sync();
return 0;
return viewer.run();
}