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/* OpenSceneGraph example, osgmultitexture.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <osgViewer/Viewer>
#include <osg/Notify>
#include <osg/Texture2D>
#include <osg/TexEnv>
#include <osg/TexGen>
#include <osgDB/Registry>
#include <osgDB/ReadFile>
#include <osgGA/TrackballManipulator>
#include <osgGA/FlightManipulator>
#include <osgGA/DriveManipulator>
#include <osgUtil/Optimizer>
#include <iostream>
int main( int argc, char **argv )
{
// use an ArgumentParser object to manage the program arguments.
osg::ArgumentParser arguments(&argc,argv);
// construct the viewer.
osgViewer::Viewer viewer;
// load the nodes from the commandline arguments.
osg::Node* rootnode = osgDB::readNodeFiles(arguments);
// if not loaded assume no arguments passed in, try use default mode instead.
if (!rootnode) rootnode = osgDB::readNodeFile("cessnafire.osgt");
if (!rootnode)
{
osg::notify(osg::NOTICE)<<"Please specify a model filename on the command line."<<std::endl;
return 1;
}
osg::Image* image = osgDB::readImageFile("Images/reflect.rgb");
if (image)
{
osg::Texture2D* texture = new osg::Texture2D;
texture->setImage(image);
osg::TexGen* texgen = new osg::TexGen;
texgen->setMode(osg::TexGen::SPHERE_MAP);
osg::TexEnv* texenv = new osg::TexEnv;
texenv->setMode(osg::TexEnv::BLEND);
texenv->setColor(osg::Vec4(0.3f,0.3f,0.3f,0.3f));
osg::StateSet* stateset = new osg::StateSet;
stateset->setTextureAttributeAndModes(1,texture,osg::StateAttribute::ON);
stateset->setTextureAttributeAndModes(1,texgen,osg::StateAttribute::ON);
stateset->setTextureAttribute(1,texenv);
rootnode->setStateSet(stateset);
}
else
{
osg::notify(osg::NOTICE)<<"unable to load reflect map, model will not be mutlitextured"<<std::endl;
}
// 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.
viewer.realize();
for(unsigned int contextID = 0;
contextID<osg::DisplaySettings::instance()->getMaxNumberOfGraphicsContexts();
++contextID)
{
osg::Texture::Extensions* textExt = osg::Texture::getExtensions(contextID,false);
if (textExt)
{
if (!textExt->isMultiTexturingSupported())
{
std::cout<<"Warning: multi-texturing not supported by OpenGL drivers, unable to run application."<<std::endl;
return 1;
}
}
}
return viewer.run();
}
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