int doMain (int argc, char **argv)
{
OSG::osgInit(argc,argv);
// GLUT init
glutInit(&argc, argv);
glutInitDisplayMode( GLUT_RGBA | GLUT_DEPTH | GLUT_DOUBLE);
glutInitWindowSize(800, 800);
int winid = glutCreateWindow("OpenSG");
glutKeyboardFunc(key);
glutVisibilityFunc(vis);
glutReshapeFunc(reshape);
glutDisplayFunc(display);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutIdleFunc(display);
// OSG
OSG::SceneFileHandler::the()->print();
// create the graph
// beacon for camera and light
OSG::NodeUnrecPtr b1n = OSG::Node::create();
OSG::GroupUnrecPtr b1 = OSG::Group::create();
fprintf(stderr, "Create b1n %p %d %d \n",
b1n.get(),
b1n->getRefCount(),
b1n->getWeakRefCount());
b1n->setCore( b1 );
// transformation
OSG::NodeUnrecPtr t1n = OSG::Node::create();
OSG::TransformUnrecPtr t1 = OSG::Transform::create();
t1n->setCore (t1 );
t1n->addChild(b1n);
fprintf(stderr, "Create t1n %p %d %d \n",
t1n.get(),
t1n->getRefCount(),
t1n->getWeakRefCount());
cam_trans = t1;
// light
OSG::NodeUnrecPtr dlight = OSG::Node::create();
OSG::DirectionalLightUnrecPtr dl = OSG::DirectionalLight::create();
{
dlight->setCore(dl);
dl->setAmbient( .3f, .3f, .3f, 1 );
dl->setDiffuse( .8f, .8f, .8f, .8f );
dl->setDirection(0,0,1);
dl->setBeacon( b1n);
}
fprintf(stderr, "Create dlight %p %d %d \n",
dlight.get(),
dlight->getRefCount(),
dlight->getWeakRefCount());
hdrroot = OSG::Node::create();
hdrroot->editVolume().setInfinite();
hdrroot->editVolume().setStatic ();
createHDRCore(hdrroot);
// root
root = OSG::Node:: create();
OSG::GroupUnrecPtr gr1 = OSG::Group::create();
root->setCore(gr1);
hdrroot->addChild(root);
root->addChild(t1n );
root->addChild(dlight);
fprintf(stderr, "Create root %p %d %d \n",
root.get(),
root->getRefCount(),
root->getWeakRefCount());
// Load the file
OSG::NodeUnrecPtr file = NULL;
if(argc > 1)
{
file = OSG::SceneFileHandler::the()->read(argv[1], NULL);
}
if(file == NULL)
{
std::cerr << "Couldn't load file, ignoring" << std::endl;
// file = makeBox(2.f, 2.f, 2.f, 2, 2, 2);
file = OSG::makeSphere(4, 2.0);
}
OSG::NodeUnrecPtr pCubeRoot = OSG::Node::create();
OSG::CubeMapGeneratorUnrecPtr pCubeGen = OSG::CubeMapGenerator::create();
pCubeRoot->addChild(file);
pCubeRoot->setCore(pCubeGen);
// pCubeRoot->setCore(Group::create());
OSG::NodeUnrecPtr pCubeSceneRoot = OSG::Node::create();
OSG::VisitSubTreeUnrecPtr pCubeVisit = OSG::VisitSubTree::create();
pCubeSceneRoot->setCore(pCubeVisit);
pCubeVisit->setSubTreeRoot(root);
pCubeGen->setRoot (pCubeSceneRoot);
pCubeGen->setTextureFormat(GL_RGB32F_ARB );
pCubeGen->setSize (512,
512 );
pCubeGen->setTexUnit (3);
OSG::NodeUnrecPtr pAnimRoot = setupAnim();
scene_trans = OSG::Transform::create();
OSG::NodeUnrecPtr sceneTrN = OSG::Node::create();
scene_trans->editMatrix()[3][2] = -50.f;
sceneTrN->setCore (scene_trans);
sceneTrN->addChild(pCubeRoot );
sceneTrN->addChild(pAnimRoot );
OSG::Thread::getCurrentChangeList()->commitChanges();
OSG::Vec3f min,max;
sceneTrN->updateVolume();
sceneTrN->getVolume().getBounds(min, max);
std::cout << "Volume: from " << min << " to " << max << std::endl;
dlight->addChild(sceneTrN);
// Camera
cam = OSG::PerspectiveCamera::create();
{
cam->setBeacon( b1n );
cam->setFov( OSG::osgDegree2Rad( 90 ) );
cam->setNear( 0.1f );
cam->setFar( 100000 );
}
// Background
OSG::SkyBackgroundUnrecPtr bkgnd = OSG::SkyBackground::create();
{
OSG::ImageUnrecPtr pBackImg =
OSG::ImageFileHandler::the()->read("data/grace_cross.chdr");
OSG::TextureObjChunkUnrecPtr pBackTex = OSG::TextureObjChunk::create();
pBackTex->setImage (pBackImg );
pBackTex->setInternalFormat(GL_RGB32F_ARB );
pBackTex->setWrapS (GL_CLAMP_TO_EDGE);
pBackTex->setWrapT (GL_CLAMP_TO_EDGE);
bkgnd->setBackTexture (pBackTex);
bkgnd->setFrontTexture (pBackTex);
bkgnd->setLeftTexture (pBackTex);
bkgnd->setRightTexture (pBackTex);
bkgnd->setTopTexture (pBackTex);
bkgnd->setBottomTexture(pBackTex);
}
// Viewport
vp = OSG::Viewport::create();
{
vp->setCamera( cam );
vp->setBackground( bkgnd );
vp->setRoot( hdrroot );
// vp->setRoot( root );
vp->setSize( 0,0, 1,1 );
}
// Window
OSG::GLUTWindowUnrecPtr gwin;
GLint glvp[4];
glGetIntegerv(GL_VIEWPORT, glvp);
gwin = OSG::GLUTWindow::create();
{
gwin->setGlutId(winid);
gwin->setSize( glvp[2], glvp[3] );
win = gwin;
win->addPort( vp );
win->init();
}
// Action
rentravact = OSG::RenderAction::create();
rentravact->setVolumeDrawing(true);
// rentravact->setFrustumCulling(false);
// tball
OSG::Vec3f pos;
pos.setValues(min[0] + ((max[0] - min[0]) * 0.5),
min[1] + ((max[1] - min[1]) * 0.5),
max[2] + ( max[2] - min[2] ) * 1.5 );
float scale = (max[2] - min[2] + max[1] - min[1] + max[0] - min[0]) / 6;
OSG::Pnt3f tCenter(min[0] + (max[0] - min[0]) / 2,
min[1] + (max[1] - min[1]) / 2,
min[2] + (max[2] - min[2]) / 2);
fprintf(stderr, "Startpos : %f %f %f\n", pos[0], pos[1], pos[2]);
tball.setMode (OSG::Trackball::OSGObject);
tball.setStartPosition (pos, true );
tball.setSum (true );
tball.setTranslationMode (OSG::Trackball::OSGFree );
tball.setTranslationScale(scale );
tball.setRotationCenter (tCenter );
fprintf(stderr, "Create b1n %p %d %d \n",
b1n.get(),
b1n->getRefCount(),
b1n->getWeakRefCount());
fprintf(stderr, "Create t1n %p %d %d \n",
t1n.get(),
t1n->getRefCount(),
t1n->getWeakRefCount());
fprintf(stderr, "Create dlight %p %d %d \n",
dlight.get(),
dlight->getRefCount(),
dlight->getWeakRefCount());
fprintf(stderr, "Create hdrroot %p %d %d \n",
hdrroot.get(),
hdrroot->getRefCount(),
hdrroot->getWeakRefCount());
fprintf(stderr, "Create root %p %d %d \n",
root.get(),
root->getRefCount(),
root->getWeakRefCount());
return 0;
}
void initPlaneSetup(void)
{
// beacon for camera and light
OSG::GroupNodeRefPtr beacon = OSG::GroupNodeRefPtr::create();
// transformation
OSG::TransformNodeRefPtr cam_transPlane =
OSG::TransformNodeRefPtr::create();
cam_transPlane.node()->addChild(beacon);
// light
OSG::DirectionalLightNodeRefPtr dl =
OSG::DirectionalLightNodeRefPtr::create();
dl->setAmbient (.3f, .3f, .3f, 1);
dl->setDiffuse ( 1, 1, 1, 1);
dl->setDirection( 0, 0, 1 );
dl->setBeacon (beacon );
// planeRoot
planeRoot = OSG::GroupNodeRefPtr::create();
planeRoot.node()->addChild(cam_transPlane);
planeRoot.node()->addChild(animRoot);
planeRoot.node()->addChild(dl);
// Create plane to project the staged render
OSG::NodeUnrecPtr plane_node = OSG::makePlane(10, 10, 5, 5);
// Setup the shared texture and texture environment
// - Create an empty image so texture can allocate size and memory
OSG::ImageUnrecPtr pImg = OSG::Image::create();
pImg->set(OSG::Image::OSG_RGB_PF, 512, 512);
tx1o->setImage (pImg );
tx1o->setMinFilter(GL_LINEAR );
tx1o->setMagFilter(GL_LINEAR );
tx1o->setWrapS (GL_REPEAT );
tx1o->setWrapT (GL_REPEAT );
tx1e->setEnvMode (GL_REPLACE);
#ifdef USE_DEPTH_TEXTURE
OSG::ImageUnrecPtr dImg = OSG::Image::create();
dImg->set(Image::OSG_L_PF, 512, 512);
txDepth->setImage (dImg);
txDepth->setMinFilter(GL_NEAREST );
txDepth->setMagFilter(GL_LINEAR );
txDepth->setWrapS (GL_CLAMP_TO_EDGE );
txDepth->setWrapT (GL_CLAMP_TO_EDGE );
txDepth->setExternalFormat(GL_DEPTH_COMPONENT);
txDepth->setInternalFormat(GL_DEPTH_COMPONENT32);
#endif
// Material for plane
// - Create a material that will reference the texture and render
// it on the plane
OSG::SimpleMaterialUnrecPtr mat = OSG::SimpleMaterial::create();
mat->setDiffuse(OSG::Color3f(1,1,1));
mat->setLit (false );
#ifdef USE_DEPTH_TEXTURE
mat->addChunk (txDepth );
#else
mat->addChunk (tx1o );
#endif
mat->addChunk (tx1e );
OSG::GeometryUnrecPtr pGeo =
dynamic_cast<OSG::Geometry *>(plane_node->getCore());
pGeo->setMaterial(mat);
// Finish connecting graph
OSG::TransformNodeRefPtr scene_trans = OSG::TransformNodeRefPtr::create();
scene_trans.node()->addChild(plane_node );
dl.node()->addChild(scene_trans);
}