From Fredric Mammond, addid osgblendequation and osglogicop examples.
This commit is contained in:
Robert Osfield
17
examples/osgblendequation/GNUmakefile
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17
examples/osgblendequation/GNUmakefile
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@@ -0,0 +1,17 @@
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TOPDIR = ../..
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include $(TOPDIR)/Make/makedefs
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CXXFILES =\
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osgblendequation.cpp\
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LIBS += -losgProducer -lProducer -losgText -losgGA -losgDB -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
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INSTFILES = \
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$(CXXFILES)\
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GNUmakefile.inst=GNUmakefile
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EXEC = osgblendequation
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INC += $(X_INC)
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include $(TOPDIR)/Make/makerules
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13
examples/osgblendequation/GNUmakefile.inst
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13
examples/osgblendequation/GNUmakefile.inst
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@@ -0,0 +1,13 @@
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TOPDIR = ../..
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include $(TOPDIR)/Make/makedefs
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CXXFILES =\
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osgblendequation.cpp\
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LIBS += -losgProducer -lProducer -losgDB -losgText -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
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EXEC = osgblendequation
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INC += $(X_INC)
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include $(TOPDIR)/Make/makerules
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211
examples/osgblendequation/osgblendequation.cpp
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211
examples/osgblendequation/osgblendequation.cpp
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@@ -0,0 +1,211 @@
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#include <osg/Geode>
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#include <osg/Group>
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#include <osg/Notify>
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#include <osg/BlendEquation>
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#include <osgDB/Registry>
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#include <osgDB/ReadFile>
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#include <osgProducer/Viewer>
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#include <osgUtil/Optimizer>
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class TechniqueEventHandler : public osgGA::GUIEventHandler, public osg::NodeCallback
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{
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public:
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TechniqueEventHandler(osg::BlendEquation* blendEq) { _blendEq=blendEq; _eq_index=0;}
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TechniqueEventHandler() { std::cerr<<"Error, can't initialize it!";}
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META_Object(osgBlendEquationApp,TechniqueEventHandler);
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virtual void accept(osgGA::GUIEventHandlerVisitor& v) { v.visit(*this); }
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virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&);
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virtual void getUsage(osg::ApplicationUsage& usage) const;
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protected:
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~TechniqueEventHandler() {}
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TechniqueEventHandler(const TechniqueEventHandler&,const osg::CopyOp&) {}
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osg::BlendEquation* _blendEq;
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static const int _eq_nb=8;
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int _eq_index;
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static const unsigned int _equations[_eq_nb];
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static const char* _equations_name[_eq_nb];
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};
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const unsigned int TechniqueEventHandler::_equations[_eq_nb]={
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osg::BlendEquation::FUNC_ADD_EXT,
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osg::BlendEquation::FUNC_SUBTRACT_EXT,
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osg::BlendEquation::FUNC_REVERSE_SUBTRACT_EXT,
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osg::BlendEquation::MIN_EXT,
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osg::BlendEquation::MAX_EXT,
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osg::BlendEquation::ALPHA_MIN_SGIX,
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osg::BlendEquation::ALPHA_MAX_SGIX,
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osg::BlendEquation::LOGIC_OP
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};
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const char* TechniqueEventHandler::_equations_name[_eq_nb]={
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"osg::BlendEquation::FUNC_ADD_EXT",
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"osg::BlendEquation::FUNC_SUBTRACT_EXT",
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"osg::BlendEquation::FUNC_REVERSE_SUBTRACT_EXT",
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"osg::BlendEquation::MIN_EXT",
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"osg::BlendEquation::MAX_EXT",
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"osg::BlendEquation::ALPHA_MIN_SGIX",
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"osg::BlendEquation::ALPHA_MAX_SGIX",
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"osg::BlendEquation::LOGIC_OP"
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};
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bool TechniqueEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&)
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{
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switch(ea.getEventType())
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{
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case(osgGA::GUIEventAdapter::KEYDOWN):
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{
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if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Right ||
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ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_Right)
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{
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_eq_index++;
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if (_eq_index>=_eq_nb)
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_eq_index=0;
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_blendEq->setEquation(_equations[_eq_index]);
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std::cout<<"Equation name = "<<_equations_name[_eq_index]<<std::endl;
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return true;
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}
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else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Left ||
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ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_Left)
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{
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_eq_index--;
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if (_eq_index<0)
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_eq_index=_eq_nb-1;
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_blendEq->setEquation(_equations[_eq_index]);
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std::cout<<"Operation name = "<<_equations_name[_eq_index]<<std::endl;
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return true;
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}
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return false;
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}
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default:
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return false;
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}
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}
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void TechniqueEventHandler::getUsage(osg::ApplicationUsage& usage) const
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{
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usage.addKeyboardMouseBinding("Left Arrow","Advance to next equation");
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usage.addKeyboardMouseBinding("Right Array","Move to previous equation");
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}
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int main( int argc, char **argv )
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{
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// use an ArgumentParser object to manage the program arguments.
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osg::ArgumentParser arguments(&argc,argv);
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// set up the usage document, in case we need to print out how to use this program.
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arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the example which demonstrates how to use glBlendEquation for mixing rendered scene and the frame-buffer.");
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arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
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arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
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// construct the viewer.
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osgProducer::Viewer viewer(arguments);
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// load the nodes from the commandline arguments.
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osg::Node* loadedModel = osgDB::readNodeFiles(arguments);
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if (!loadedModel)
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{
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return 1;
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}
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osg::Group* root = new osg::Group;
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root->addChild(loadedModel);
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osg::StateSet* stateset = new osg::StateSet;
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osg::BlendEquation* blendEquation = new osg::BlendEquation(osg::BlendEquation::FUNC_ADD_EXT);
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stateset->setAttributeAndModes(blendEquation,osg::StateAttribute::OVERRIDE|osg::StateAttribute::ON);
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//tell to sort the mesh before displaying it
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stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
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loadedModel->setStateSet(stateset);
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// set up the value with sensible default event handlers.
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viewer.setUpViewer(osgProducer::Viewer::STANDARD_SETTINGS);
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viewer.getEventHandlerList().push_front(new TechniqueEventHandler(blendEquation));
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// get details on keyboard and mouse bindings used by the viewer.
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viewer.getUsage(*arguments.getApplicationUsage());
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// if user request help write it out to cout.
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if (arguments.read("-h") || arguments.read("--help"))
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{
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arguments.getApplicationUsage()->write(std::cout);
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return 1;
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}
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// any option left unread are converted into errors to write out later.
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arguments.reportRemainingOptionsAsUnrecognized();
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// report any errors if they have occured when parsing the program aguments.
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if (arguments.errors())
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{
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arguments.writeErrorMessages(std::cout);
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return 1;
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}
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if (arguments.argc()<=1)
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{
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arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
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return 1;
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}
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// run optimization over the scene graph
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osgUtil::Optimizer optimzer;
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optimzer.optimize(root);
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// add a viewport to the viewer and attach the scene graph.
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viewer.setSceneData( root );
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// create the windows and run the threads.
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viewer.realize();
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while( !viewer.done() )
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{
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// wait for all cull and draw threads to complete.
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viewer.sync();
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// update the scene by traversing it with the the update visitor which will
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// call all node update callbacks and animations.
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viewer.update();
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// fire off the cull and draw traversals of the scene.
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viewer.frame();
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}
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// wait for all cull and draw threads to complete before exit.
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viewer.sync();
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return 0;
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}
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17
examples/osglogicop/GNUmakefile
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17
examples/osglogicop/GNUmakefile
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@@ -0,0 +1,17 @@
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TOPDIR = ../..
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include $(TOPDIR)/Make/makedefs
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CXXFILES =\
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osglogicop.cpp\
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LIBS += -losgProducer -lProducer -losgText -losgGA -losgDB -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
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INSTFILES = \
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$(CXXFILES)\
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GNUmakefile.inst=GNUmakefile
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EXEC = osglogicop
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INC += $(X_INC)
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include $(TOPDIR)/Make/makerules
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13
examples/osglogicop/GNUmakefile.inst
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13
examples/osglogicop/GNUmakefile.inst
Normal file
@@ -0,0 +1,13 @@
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TOPDIR = ../..
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include $(TOPDIR)/Make/makedefs
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CXXFILES =\
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osglogicop.cpp\
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LIBS += -losgProducer -lProducer -losgDB -losgText -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
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EXEC = osglogicop
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INC += $(X_INC)
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include $(TOPDIR)/Make/makerules
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227
examples/osglogicop/osglogicop.cpp
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227
examples/osglogicop/osglogicop.cpp
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@@ -0,0 +1,227 @@
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#include <osg/Geode>
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#include <osg/Group>
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#include <osg/Notify>
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#include <osg/LogicOp>
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#include <osgDB/Registry>
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#include <osgDB/ReadFile>
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#include <osgProducer/Viewer>
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#include <osgUtil/Optimizer>
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class TechniqueEventHandler : public osgGA::GUIEventHandler, public osg::NodeCallback
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{
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public:
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TechniqueEventHandler(osg::LogicOp* logicOp) { _logicOp =logicOp;_ops_index=_ops_nb-1;}
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TechniqueEventHandler() { std::cerr<<"Error, can't initialize it!";}
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META_Object(osglogicopApp,TechniqueEventHandler);
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virtual void accept(osgGA::GUIEventHandlerVisitor& v) { v.visit(*this); }
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virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&);
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virtual void getUsage(osg::ApplicationUsage& usage) const;
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protected:
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~TechniqueEventHandler() {}
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TechniqueEventHandler(const TechniqueEventHandler&,const osg::CopyOp&) {}
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osg::LogicOp* _logicOp;
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static const int _ops_nb=16;
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int _ops_index;
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static const unsigned int _operations[_ops_nb];
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static const char* _ops_name[_ops_nb];
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};
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const unsigned int TechniqueEventHandler::_operations[_ops_nb]={
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osg::LogicOp::CLEAR,
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osg::LogicOp::SET,
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osg::LogicOp::COPY,
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osg::LogicOp::COPY_INVERTED,
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osg::LogicOp::NOOP,
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osg::LogicOp::INVERT,
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osg::LogicOp::AND,
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osg::LogicOp::NAND,
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osg::LogicOp::OR,
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osg::LogicOp::NOR,
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osg::LogicOp::XOR,
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osg::LogicOp::EQUIV,
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osg::LogicOp::AND_REVERSE,
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osg::LogicOp::AND_INVERTED,
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osg::LogicOp::OR_REVERSE,
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osg::LogicOp::OR_INVERTED
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};
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const char* TechniqueEventHandler::_ops_name[_ops_nb]={
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"osg::LogicOp::CLEAR",
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"osg::LogicOp::SET",
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"osg::LogicOp::COPY",
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"osg::LogicOp::COPY_INVERTED",
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"osg::LogicOp::NOOP",
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"osg::LogicOp::INVERT",
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"osg::LogicOp::AND",
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"osg::LogicOp::NAND",
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"osg::LogicOp::OR",
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"osg::LogicOp::NOR",
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"osg::LogicOp::XOR",
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"osg::LogicOp::EQUIV",
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"osg::LogicOp::AND_REVERSE",
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"osg::LogicOp::AND_INVERTED",
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"osg::LogicOp::OR_REVERSE",
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"osg::LogicOp::OR_INVERTED"
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};
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bool TechniqueEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&)
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{
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switch(ea.getEventType())
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{
|
||||
case(osgGA::GUIEventAdapter::KEYDOWN):
|
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{
|
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if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Right ||
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ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_Right)
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{
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_ops_index++;
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if (_ops_index>=_ops_nb)
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_ops_index=0;
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_logicOp->setOpcode(_operations[_ops_index]);
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std::cout<<"Operation name = "<<_ops_name[_ops_index]<<std::endl;
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return true;
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}
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else if (ea.getKey()==osgGA::GUIEventAdapter::KEY_Left ||
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ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_Left)
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{
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_ops_index--;
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if (_ops_index<0)
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_ops_index=_ops_nb-1;
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_logicOp->setOpcode(_operations[_ops_index]);
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std::cout<<"Operation name = "<<_ops_name[_ops_index]<<std::endl;
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return true;
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}
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return false;
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||||
}
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default:
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return false;
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||||
}
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}
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void TechniqueEventHandler::getUsage(osg::ApplicationUsage& usage) const
|
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{
|
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usage.addKeyboardMouseBinding("- or Left Arrow","Advance to next opcode");
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||||
usage.addKeyboardMouseBinding("+ or Right Array","Move to previous opcode");
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
int main( int argc, char **argv )
|
||||
{
|
||||
|
||||
// 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 how to use glLogicOp for mixing rendered scene and the frame-buffer.");
|
||||
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
|
||||
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
|
||||
|
||||
// construct the viewer.
|
||||
osgProducer::Viewer viewer(arguments);
|
||||
|
||||
// load the nodes from the commandline arguments.
|
||||
osg::Node* loadedModel = osgDB::readNodeFiles(arguments);
|
||||
if (!loadedModel)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
osg::Group* root = new osg::Group;
|
||||
root->addChild(loadedModel);
|
||||
|
||||
|
||||
osg::StateSet* stateset = new osg::StateSet;
|
||||
osg::LogicOp* logicOp = new osg::LogicOp(osg::LogicOp::OR_INVERTED);
|
||||
|
||||
stateset->setAttributeAndModes(logicOp,osg::StateAttribute::OVERRIDE|osg::StateAttribute::ON);
|
||||
|
||||
|
||||
//tell to sort the mesh before displaying it
|
||||
stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
|
||||
|
||||
|
||||
loadedModel->setStateSet(stateset);
|
||||
|
||||
|
||||
|
||||
|
||||
// set up the value with sensible default event handlers.
|
||||
viewer.setUpViewer(osgProducer::Viewer::STANDARD_SETTINGS);
|
||||
|
||||
viewer.getEventHandlerList().push_front(new TechniqueEventHandler(logicOp));
|
||||
|
||||
// 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;
|
||||
}
|
||||
|
||||
if (arguments.argc()<=1)
|
||||
{
|
||||
arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
|
||||
// run optimization over the scene graph
|
||||
osgUtil::Optimizer optimzer;
|
||||
optimzer.optimize(root);
|
||||
|
||||
// add a viewport to the viewer and attach the scene graph.
|
||||
viewer.setSceneData( root );
|
||||
|
||||
// create the windows and run the threads.
|
||||
viewer.realize();
|
||||
|
||||
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 before exit.
|
||||
viewer.sync();
|
||||
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user