2003-03-15 04:35:45 +08:00
|
|
|
#include <osg/Group>
|
|
|
|
#include <osg/StateSet>
|
|
|
|
#include <osg/TextureCubeMap>
|
|
|
|
#include <osg/TexGen>
|
|
|
|
#include <osg/TexEnvCombine>
|
|
|
|
|
|
|
|
#include <osgUtil/ReflectionMapGenerator>
|
|
|
|
#include <osgUtil/HighlightMapGenerator>
|
|
|
|
#include <osgUtil/HalfWayMapGenerator>
|
|
|
|
#include <osgUtil/Optimizer>
|
|
|
|
|
|
|
|
#include <osgDB/ReadFile>
|
|
|
|
#include <osgDB/Registry>
|
|
|
|
|
|
|
|
#include <osgGA/TrackballManipulator>
|
|
|
|
#include <osgGA/FlightManipulator>
|
|
|
|
#include <osgGA/DriveManipulator>
|
|
|
|
|
|
|
|
#include <osgProducer/Viewer>
|
|
|
|
|
|
|
|
#include <iostream>
|
|
|
|
#include <string>
|
|
|
|
#include <vector>
|
|
|
|
|
|
|
|
void create_specular_highlights(osg::Node *node)
|
|
|
|
{
|
|
|
|
osg::StateSet *ss = node->getOrCreateStateSet();
|
|
|
|
|
|
|
|
// create and setup the texture object
|
|
|
|
osg::TextureCubeMap *tcm = new osg::TextureCubeMap;
|
|
|
|
tcm->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP);
|
|
|
|
tcm->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP);
|
|
|
|
tcm->setWrap(osg::Texture::WRAP_R, osg::Texture::CLAMP);
|
|
|
|
tcm->setFilter(osg::Texture::MIN_FILTER, osg::Texture::LINEAR_MIPMAP_LINEAR);
|
|
|
|
tcm->setFilter(osg::Texture::MAG_FILTER, osg::Texture::LINEAR);
|
|
|
|
|
|
|
|
// generate the six highlight map images (light direction = [1, 1, -1])
|
|
|
|
osgUtil::HighlightMapGenerator *mapgen = new osgUtil::HighlightMapGenerator(
|
|
|
|
osg::Vec3(1, 1, -1), // light direction
|
|
|
|
osg::Vec4(1, 0.9f, 0.8f, 1), // light color
|
|
|
|
8); // specular exponent
|
|
|
|
|
|
|
|
mapgen->generateMap();
|
|
|
|
|
|
|
|
// assign the six images to the texture object
|
|
|
|
tcm->setImage(osg::TextureCubeMap::POSITIVE_X, mapgen->getImage(osg::TextureCubeMap::POSITIVE_X));
|
|
|
|
tcm->setImage(osg::TextureCubeMap::NEGATIVE_X, mapgen->getImage(osg::TextureCubeMap::NEGATIVE_X));
|
|
|
|
tcm->setImage(osg::TextureCubeMap::POSITIVE_Y, mapgen->getImage(osg::TextureCubeMap::POSITIVE_Y));
|
|
|
|
tcm->setImage(osg::TextureCubeMap::NEGATIVE_Y, mapgen->getImage(osg::TextureCubeMap::NEGATIVE_Y));
|
|
|
|
tcm->setImage(osg::TextureCubeMap::POSITIVE_Z, mapgen->getImage(osg::TextureCubeMap::POSITIVE_Z));
|
|
|
|
tcm->setImage(osg::TextureCubeMap::NEGATIVE_Z, mapgen->getImage(osg::TextureCubeMap::NEGATIVE_Z));
|
|
|
|
|
|
|
|
// enable texturing, replacing any textures in the subgraphs
|
|
|
|
ss->setTextureAttributeAndModes(0, tcm, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON);
|
|
|
|
|
|
|
|
// texture coordinate generation
|
|
|
|
osg::TexGen *tg = new osg::TexGen;
|
|
|
|
tg->setMode(osg::TexGen::REFLECTION_MAP);
|
|
|
|
ss->setTextureAttributeAndModes(0, tg, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON);
|
|
|
|
|
|
|
|
// use TexEnvCombine to add the highlights to the original lighting
|
|
|
|
osg::TexEnvCombine *te = new osg::TexEnvCombine;
|
|
|
|
te->setCombine_RGB(osg::TexEnvCombine::ADD);
|
|
|
|
te->setSource0_RGB(osg::TexEnvCombine::TEXTURE);
|
|
|
|
te->setOperand0_RGB(osg::TexEnvCombine::SRC_COLOR);
|
|
|
|
te->setSource1_RGB(osg::TexEnvCombine::PRIMARY_COLOR);
|
|
|
|
te->setOperand1_RGB(osg::TexEnvCombine::SRC_COLOR);
|
|
|
|
ss->setTextureAttributeAndModes(0, te, osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON);
|
|
|
|
}
|
|
|
|
|
|
|
|
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.
|
2003-04-07 05:32:44 +08:00
|
|
|
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
|
2003-03-15 04:35:45 +08:00
|
|
|
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
|
|
|
|
|
|
|
|
// construct the viewer.
|
|
|
|
osgProducer::Viewer viewer(arguments);
|
|
|
|
|
|
|
|
// set up the value with sensible default event handlers.
|
|
|
|
viewer.setUpViewer(osgProducer::Viewer::STANDARD_SETTINGS);
|
|
|
|
|
|
|
|
// 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;
|
|
|
|
}
|
2003-04-07 05:32:44 +08:00
|
|
|
|
|
|
|
if (arguments.argc()<=1)
|
|
|
|
{
|
|
|
|
arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
|
|
|
|
return 1;
|
|
|
|
}
|
2003-03-15 04:35:45 +08:00
|
|
|
|
|
|
|
// load the nodes from the commandline arguments.
|
|
|
|
osg::Node* rootnode = osgDB::readNodeFiles(arguments);
|
|
|
|
if (!rootnode) {
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
// create specular highlights
|
|
|
|
create_specular_highlights(rootnode);
|
|
|
|
|
|
|
|
// run optimization over the scene graph
|
|
|
|
osgUtil::Optimizer optimzer;
|
|
|
|
optimzer.optimize(rootnode);
|
|
|
|
|
|
|
|
// add a viewport to the viewer and attach the scene graph.
|
|
|
|
viewer.setSceneData(rootnode);
|
|
|
|
|
|
|
|
// create the windows and run the threads.
|
2003-04-08 23:18:45 +08:00
|
|
|
viewer.realize();
|
2003-03-15 04:35:45 +08:00
|
|
|
|
|
|
|
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();
|
|
|
|
|
|
|
|
}
|
2003-03-25 18:05:09 +08:00
|
|
|
|
|
|
|
// wait for all cull and draw threads to complete before exit.
|
|
|
|
viewer.sync();
|
2003-03-15 04:35:45 +08:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|