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Added osgSim library which encapulsulates light points.

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Added osglightpoint demo.
This commit is contained in:
Robert Osfield
2002-11-19 10:57:40 +00:00
parent 5fca8ea229
commit e02ae73edc
19 changed files with 1618 additions and 4 deletions
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16
src/Demos/osglightpoint/Makefile Normal file
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TOPDIR = ../../..
include $(TOPDIR)/Make/makedefs
CXXFILES =\
osglightpoint.cpp\
LIBS += -losgSim $(OSG_LIBS) $(GLUT_LIB) $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
INSTFILES = \
$(CXXFILES)\
Makefile.inst=Makefile
EXEC = osglightpoint
include $(TOPDIR)/Make/makerules

12
src/Demos/osglightpoint/Makefile.inst Normal file
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TOPDIR = ../..
include $(TOPDIR)/Make/makedefs
CXXFILES =\
osglightpoint.cpp\
LIBS += -losgSim $(OSG_LIBS) $(GLUT_LIB) $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
EXEC = osglightpoint
include $(TOPDIR)/Make/makerules

201
src/Demos/osglightpoint/osglightpoint.cpp Normal file
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#include <osg/GL>
#include <osgGLUT/glut>
#include <osgGLUT/Viewer>
#include <osg/Transform>
#include <osg/Billboard>
#include <osg/Geode>
#include <osg/Group>
#include <osg/Notify>
#include <osgDB/Registry>
#include <osgDB/ReadFile>
#include <osgGA/TrackballManipulator>
#include <osgGA/FlightManipulator>
#include <osgGA/DriveManipulator>
#include <osgUtil/Optimizer>
#include <osgSim/LightPointNode>
void write_usage(std::ostream& out,const std::string& name)
{
out << std::endl;
out <<"usage:"<< std::endl;
out <<" "<<name<<" [options] infile1 [infile2 ...]"<< std::endl;
out << std::endl;
out <<"options:"<< std::endl;
out <<" -l libraryName - load plugin of name libraryName"<< std::endl;
out <<" i.e. -l osgdb_pfb"<< std::endl;
out <<" Useful for loading reader/writers which can load"<< std::endl;
out <<" other file formats in addition to its extension."<< std::endl;
out <<" -e extensionName - load reader/wrter plugin for file extension"<< std::endl;
out <<" i.e. -e pfb"<< std::endl;
out <<" Useful short hand for specifying full library name as"<< std::endl;
out <<" done with -l above, as it automatically expands to"<< std::endl;
out <<" the full library name appropriate for each platform."<< std::endl;
out <<std::endl;
out <<" -stereo - switch on stereo rendering, using the default of,"<< std::endl;
out <<" ANAGLYPHIC or the value set in the OSG_STEREO_MODE "<< std::endl;
out <<" environmental variable. See doc/stereo.html for "<< std::endl;
out <<" further details on setting up accurate stereo "<< std::endl;
out <<" for your system. "<< std::endl;
out <<" -stereo ANAGLYPHIC - switch on anaglyphic(red/cyan) stereo rendering."<< std::endl;
out <<" -stereo QUAD_BUFFER - switch on quad buffered stereo rendering."<< std::endl;
out <<std::endl;
out <<" -stencil - use a visual with stencil buffer enabled, this "<< std::endl;
out <<" also allows the depth complexity statistics mode"<< std::endl;
out <<" to be used (press 'p' three times to cycle to it)."<< std::endl;
out << std::endl;
}
#define INTERPOLATE(member) lp.member = start.member*rstart + end.member*rend;
void addToLightPointNode(osgSim::LightPointNode& lpn,osgSim::LightPoint& start,osgSim::LightPoint& end,unsigned int noSteps)
{
if (noSteps<=1)
{
lpn.addLightPoint(start);
return;
}
float rend = 0.0f;
float rdelta = 1.0f/((float)noSteps-1.0f);
lpn._lightPointList.reserve(noSteps);
for(unsigned int i=0;i<noSteps;++i,rend+=rdelta)
{
float rstart = 1.0f-rend;
osgSim::LightPoint lp(start);
INTERPOLATE(_position)
INTERPOLATE(_intensity);
INTERPOLATE(_color);
INTERPOLATE(_radius);
//INTERPOLATE(_minPixelSize);
//INTERPOLATE(_maxPixelSize);
// INTERPOLATE(_maxVisibileDistance2);
lpn.addLightPoint(lp);
}
}
#undef INTERPOLATE
osg::Node* createLightPointsDatabase()
{
osgSim::LightPoint start;
osgSim::LightPoint end;
start._position.set(0.0f,0.0f,0.0f);
start._color.set(1.0f,0.0f,0.0f,1.0f);
end._position.set(1000.0f,0.0f,0.0f);
end._color.set(1.0f,1.0f,1.0f,1.0f);
osg::Transform* transform = osgNew osg::Transform;
osg::Vec3 start_delta(0.0f,10.0f,0.0f);
osg::Vec3 end_delta(0.0f,10.0f,1.0f);
int noStepsX = 100;
int noStepsY = 100;
// osgSim::BlinkSequence* bs = osgNew osgSim::BlinkSequence;
// bs->addPulse(1.0,osg::Vec4(1.0f,0.0f,0.0f,1.0f));
// bs->addPulse(0.5,osg::Vec4(0.0f,0.0f,0.0f,0.0f)); // off
// bs->addPulse(1.5,osg::Vec4(1.0f,1.0f,0.0f,1.0f));
// bs->addPulse(0.5,osg::Vec4(0.0f,0.0f,0.0f,0.0f)); // off
// bs->addPulse(1.0,osg::Vec4(1.0f,1.0f,1.0f,1.0f));
// bs->addPulse(0.5,osg::Vec4(0.0f,0.0f,0.0f,0.0f)); // off
// osgSim::Sector* sector = osgNew osgSim::ConeSector(osg::Vec3(0.0f,0.0f,1.0f),osg::inDegrees(45.0),osg::inDegrees(45.0));
// osgSim::Sector* sector = osgNew osgSim::ElevationSector(-osg::inDegrees(45.0),osg::inDegrees(45.0),osg::inDegrees(45.0));
// osgSim::Sector* sector = osgNew osgSim::AzimSector(-osg::inDegrees(45.0),osg::inDegrees(45.0),osg::inDegrees(90.0));
// osgSim::Sector* sector = osgNew osgSim::AzimElevationSector(osg::inDegrees(180),osg::inDegrees(90), // azim range
// osg::inDegrees(0.0),osg::inDegrees(90.0), // elevation range
// osg::inDegrees(5.0));
for(int i=0;i<noStepsY;++i)
{
// osgSim::BlinkSequence* local_bs = osgNew osgSim::BlinkSequence(*bs);
// local_bs->setSequenceGroup(osgNew osgSim::BlinkSequence::SequenceGroup((double)i*0.1));
// start._blinkSequence = local_bs;
// start._sector = sector;
osgSim::LightPointNode* lpn = osgNew osgSim::LightPointNode;
addToLightPointNode(*lpn,start,end,noStepsX);
start._position += start_delta;
end._position += end_delta;
transform->addChild(lpn);
}
osg::Group* group = osgNew osg::Group;
group->addChild(transform);
return group;
}
int main( int argc, char **argv )
{
// initialize the GLUT
glutInit( &argc, argv );
// create the commandline args.
std::vector<std::string> commandLine;
for(int i=1;i<argc;++i) commandLine.push_back(argv[i]);
// initialize the viewer.
osgGLUT::Viewer viewer;
viewer.setWindowTitle(argv[0]);
// configure the viewer from the commandline arguments, and eat any
// parameters that have been matched.
viewer.readCommandLine(commandLine);
// configure the plugin registry from the commandline arguments, and
// eat any parameters that have been matched.
osgDB::readCommandLine(commandLine);
osg::Group* rootnode = osgNew osg::Group;
// load the nodes from the commandline arguments.
rootnode->addChild(osgDB::readNodeFiles(commandLine));
rootnode->addChild(createLightPointsDatabase());
if (!rootnode)
{
return 1;
}
// run optimization over the scene graph
osgUtil::Optimizer optimzer;
optimzer.optimize(rootnode);
// add a viewport to the viewer and attach the scene graph.
viewer.addViewport( rootnode );
// register trackball, flight and drive.
viewer.registerCameraManipulator(new osgGA::TrackballManipulator);
viewer.registerCameraManipulator(new osgGA::FlightManipulator);
viewer.registerCameraManipulator(new osgGA::DriveManipulator);
// open the viewer window.
viewer.open();
// fire up the event loop.
viewer.run();
return 0;
}