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Added the beginings of new osgParticle Explosion, Fire and SmokeEffects.

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Added support for generation explosion, fire and smoke effects in osgsimulation
This commit is contained in:
Robert Osfield
2004-05-13 22:09:23 +00:00
parent 45998cfdf7
commit ae5aefac0e
16 changed files with 1091 additions and 176 deletions
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108
examples/osgsimulation/osgsimulation.cpp
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@@ -1,51 +1,54 @@
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield
*
* This application is open source and may be redistributed and/or modified
* freely and without restriction, both in commericial and non commericial applications,
* as long as this copyright notice is maintained.
*
* This application is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <osgDB/ReadFile>
#include <osgUtil/Optimizer>
#include <osgProducer/Viewer>
#include <osg/Group>
#include <osg/Geode>
#include <osgSim/SphereSegment>
#include <osgParticle/ExplosionEffect>
#include <osgParticle/SmokeEffect>
#include <osgParticle/FireEffect>
#include <osgParticle/ParticleSystemUpdater>
using namespace osgSim;
osg::Node* createSphereSegment()
//////////////////////////////////////////////////////////////////////////////
// MAIN SCENE GRAPH BUILDING FUNCTION
//////////////////////////////////////////////////////////////////////////////
void build_world(osg::Group *root)
{
osgSim::SphereSegment* ss = new osgSim::SphereSegment(osg::Vec3(0.0f,0.0f,0.0f), 1.0f,
osg::Vec3(0.0f,1.0f,0.0f),
osg::DegreesToRadians(360.0f),
osg::DegreesToRadians(45.0f),
40);
ss->setAllColors(osg::Vec4(1.0f,1.0f,1.0f,0.5f));
return ss;
}
osgParticle::ExplosionEffect* explosion = new osgParticle::ExplosionEffect;
osgParticle::SmokeEffect* smoke = new osgParticle::SmokeEffect;
osgParticle::FireEffect* fire = new osgParticle::FireEffect;
root->addChild(explosion);
root->addChild(smoke);
root->addChild(fire);
osgParticle::ParticleSystemUpdater *psu = new osgParticle::ParticleSystemUpdater;
psu->addParticleSystem(explosion->getParticleSystem());
psu->addParticleSystem(smoke->getParticleSystem());
psu->addParticleSystem(fire->getParticleSystem());
// add the updater node to the scene graph
root->addChild(psu);
osg::Node* createModel()
{
return createSphereSegment();
}
int main( int argc, char **argv )
{
//////////////////////////////////////////////////////////////////////////////
// main()
//////////////////////////////////////////////////////////////////////////////
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()->setApplicationName(arguments.getApplicationName());
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the standard OpenSceneGraph example which loads and visualises 3d models.");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the example which demonstrates use of particle systems.");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] image_file_left_eye image_file_right_eye");
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
@@ -75,40 +78,12 @@ int main( int argc, char **argv )
return 1;
}
if (arguments.argc()<=1)
{
arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
return 1;
}
// osg::Timer timer;
// osg::Timer_t start_tick = timer.tick();
//
// // read the scene from the list of file specified commandline args.
// osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(arguments);
//
// // if no model has been successfully loaded report failure.
// if (!loadedModel)
// {
// std::cout << arguments.getApplicationName() <<": No data loaded" << std::endl;
// return 1;
// }
//
// osg::Timer_t end_tick = timer.tick();
//
// std::cout << "Time to load = "<<timer.delta_s(start_tick,end_tick)<<std::endl;
osg::ref_ptr<osg::Node> loadedModel = createModel();
// optimize the scene graph, remove rendundent nodes and state etc.
osgUtil::Optimizer optimizer;
optimizer.optimize(loadedModel.get());
// set the scene to render
viewer.setSceneData(loadedModel.get());
osg::Group *root = new osg::Group;
build_world(root);
// add a viewport to the viewer and attach the scene graph.
viewer.setSceneData(root);
// create the windows and run the threads.
viewer.realize();
@@ -131,4 +106,3 @@ int main( int argc, char **argv )
return 0;
}