Ported osgGLUT based src/Demos across to being osgProducer based, and placed

them in the new examples/ directory.

examples/osgshape/osgshape.cpp

@@ -0,0 +1,143 @@
+#include <osg/Geode>
+#include <osg/ShapeDrawable>
+#include <osg/Material>
+#include <osg/Texture2D>
+
+#include <osgGA/TrackballManipulator>
+
+#include <osgProducer/Viewer>
+
+#include <osgDB/ReadFile>
+
+#include <osg/Math>
+
+// for the grid data..
+#include "../osghangglide/terrain_coords.h"
+
+osg::Geode* createShapes()
+{
+    osg::Geode* geode = new osg::Geode();
+
+    // ---------------------------------------
+    // Set up a StateSet to texture the objects
+    // ---------------------------------------
+    osg::StateSet* stateset = new osg::StateSet();
+
+    osg::Image* image = osgDB::readImageFile("Images/lz.rgb");
+    if (image)
+    {
+	osg::Texture2D* texture = new osg::Texture2D;
+	texture->setImage(image);
+	stateset->setTextureAttributeAndModes(0,texture,osg::StateAttribute::ON);
+    }
+    
+    geode->setStateSet( stateset );
+    
+    float radius = 0.8f;
+    float height = 1.0f;
+    
+    geode->addDrawable(new osg::ShapeDrawable(new osg::Sphere(osg::Vec3(0.0f,0.0f,0.0f),radius)));
+    geode->addDrawable(new osg::ShapeDrawable(new osg::Box(osg::Vec3(2.0f,0.0f,0.0f),2*radius)));
+    geode->addDrawable(new osg::ShapeDrawable(new osg::Cone(osg::Vec3(4.0f,0.0f,0.0f),radius,height)));
+    geode->addDrawable(new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(6.0f,0.0f,0.0f),radius,height)));
+
+    osg::Grid* grid = new osg::Grid;
+    grid->allocateGrid(38,39);
+    grid->setXInterval(0.28f);
+    grid->setYInterval(0.28f);
+    
+    for(unsigned int r=0;r<39;++r)
+    {
+	for(unsigned int c=0;c<38;++c)
+	{
+	    grid->setHeight(c,r,vertex[r+c*39][2]);
+	}
+    }
+    geode->addDrawable(new osg::ShapeDrawable(grid));
+    
+    osg::ConvexHull* mesh = new osg::ConvexHull;
+    osg::Vec3Array* vertices = new osg::Vec3Array(4);
+    (*vertices)[0].set(7.0+0.0f,-1.0f+2.0f,-1.0f+0.0f);
+    (*vertices)[1].set(7.0+1.0f,-1.0f+0.0f,-1.0f+0.0f);
+    (*vertices)[2].set(7.0+2.0f,-1.0f+2.0f,-1.0f+0.0f);
+    (*vertices)[3].set(7.0+1.0f,-1.0f+1.0f,-1.0f+2.0f);
+    osg::UByteArray* indices = new osg::UByteArray(12);
+    (*indices)[0]=0;
+    (*indices)[1]=2;
+    (*indices)[2]=1;
+    (*indices)[3]=0;
+    (*indices)[4]=1;
+    (*indices)[5]=3;
+    (*indices)[6]=1;
+    (*indices)[7]=2;
+    (*indices)[8]=3;
+    (*indices)[9]=2;
+    (*indices)[10]=0;
+    (*indices)[11]=3;
+    mesh->setVertices(vertices);
+    mesh->setIndices(indices);
+    geode->addDrawable(new osg::ShapeDrawable(mesh));
+    
+    return geode;
+}
+
+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()->setCommandLineUsage(arguments.getProgramName()+" [options] filename ...");
+    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;
+    }
+    
+    osg::Node* node = createShapes();
+
+    // add model to viewer.
+    viewer.setSceneData( node );
+
+    // create the windows and run the threads.
+    viewer.realize(Producer::CameraGroup::ThreadPerCamera);
+
+    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();
+        
+    }
+
+    return 0;
+}