root/OpenSceneGraph/trunk/examples/osgvirtualprogram/osgvirtualprogram.cpp @ 14226

Revision 12292, 2.8 kB (checked in by robert, 4 years ago)

Ran svn propset -R svn:eol-style native . on the OpenSceneGraph

  • Property svn:eol-style set to native
Line 
1#include <iostream>
2#include <osg/Geode>
3#include <osg/TexGen>
4#include <osg/Texture2D>
5#include <osg/MatrixTransform>
6#include <osgDB/ReadFile>
7#include <osgViewer/Viewer>
8#include <osg/ShapeDrawable>
9#include <osg/Material>
10
11extern osg::Node * CreateSimpleHierarchy( osg::Node * model );
12extern osg::Node * CreateAdvancedHierarchy( osg::Node * model );
13
14////////////////////////////////////////////////////////////////////////////////
15osg::Node * CreateGlobe( void )
16{
17    // File not found - create textured sphere
18    osg::Geode * geode = new osg::Geode;
19    osg::ref_ptr<osg::TessellationHints> hints = new osg::TessellationHints;
20    hints->setDetailRatio( 0.3 );
21
22#if 1
23    osg::ref_ptr<osg::ShapeDrawable> shape = new osg::ShapeDrawable
24        ( new osg::Sphere(osg::Vec3(0.0f, 0.0f, 0.0f), 4.0 ), hints.get() );
25#else
26    osg::ref_ptr<osg::ShapeDrawable> shape = new osg::ShapeDrawable
27        ( new osg::Box( osg::Vec3(-1.0f, -1.0f, -1.0f), 2.0, 2.0, 2.0 ) );
28#endif
29
30    shape->setColor(osg::Vec4(0.8f, 0.8f, 0.8f, 1.0f));
31
32    geode->addDrawable( shape.get() );
33
34    osg::StateSet * stateSet = new osg::StateSet;
35
36    osg::Texture2D * texture =  new osg::Texture2D(
37        osgDB::readImageFile("Images/land_shallow_topo_2048.jpg")
38    );
39
40    osg::Material * material = new osg::Material;
41
42    material->setAmbient
43        ( osg::Material::FRONT_AND_BACK, osg::Vec4( 0.9, 0.9, 0.9, 1.0 ) );
44
45    material->setDiffuse
46        ( osg::Material::FRONT_AND_BACK, osg::Vec4( 0.9, 0.9, 0.9, 1.0 ) );
47
48#if 1
49    material->setSpecular
50        ( osg::Material::FRONT_AND_BACK, osg::Vec4( 0.7, 0.3, 0.3, 1.0 ) );
51
52    material->setShininess( osg::Material::FRONT_AND_BACK, 25 );
53
54#endif
55
56    stateSet->setAttributeAndModes( material );
57    stateSet->setTextureAttributeAndModes( 0,texture, osg::StateAttribute::ON );
58
59    geode->setStateSet( stateSet );
60    return geode;
61}
62////////////////////////////////////////////////////////////////////////////////
63int main( int argc, char **argv )
64{
65    // construct the viewer.
66    osg::ArgumentParser arguments( &argc, argv );
67    osgViewer::Viewer viewer( arguments );
68
69    bool useSimpleExample = arguments.read("-s") || arguments.read("--simple") ;
70
71    osg::Node * model = NULL;
72
73    if (arguments.argc()>1 && !arguments.isOption(1) ) {
74        std::string filename = arguments[1];
75        model = osgDB::readNodeFile( filename );
76        if ( !model ) {
77            osg::notify( osg::NOTICE )
78                << "Error, cannot read " << filename
79                << ". Loading default earth model instead." << std::endl;
80        }
81    }
82
83    if( model == NULL )
84        model = CreateGlobe( );
85
86    osg::Node * node = useSimpleExample ?       
87        CreateSimpleHierarchy( model ):
88        CreateAdvancedHierarchy( model );
89
90    viewer.setSceneData( node );
91    viewer.realize(  );
92    viewer.run();
93
94    return 0;
95}
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