bool SDLViewer::setUpViewerAsOSGGraphicsWindow(const char *caption, const ScreenSettings & screenSettings)
{
if ( screenSettings.fullScreen )
{
setUpViewOnSingleScreen();
}
else
{
setUpViewInWindow(50, 50, screenSettings.width, screenSettings.height);
}
return true;
}
void
TestScene3::runOsg()
{
// open window
auto viewer = new osgViewer::Viewer();
viewer->setUpViewInWindow(560, 240, 800, 600);
// adjust camera
auto camera = viewer->getCamera();
camera->setViewMatrixAsLookAt(osg::Vec3d(100, 100, 100), osg::Vec3d(0, 0, 0), osg::Vec3d(0, 1, 0));
// loop
runOsgLoop(viewer);
}
void
TestScene5::runOsg()
{
// open window
auto viewer = new osgViewer::Viewer();
viewer->setUpViewInWindow(560, 240, 800, 600);
// adjust camera
auto camera = viewer->getCamera();
camera->setViewMatrixAsLookAt(osg::Vec3d(100, 100, 100), osg::Vec3d(0, 0, 0), osg::Vec3d(0, 1, 0));
// load & integrate model
auto modelNode = osgDB::readNodeFile("/home/soulmerge/projects/Diplomarbeit/Prototype/resources/Ogre/alexandria.3ds");
auto modelPositioner = new osg::PositionAttitudeTransform();
modelPositioner->addChild(modelNode);
modelPositioner->setPosition(osg::Vec3(-100, -100, -100));
viewer->setSceneData(modelPositioner);
// loop
runOsgLoop(viewer);
}
ViewerWidget::ViewerWidget():
osgViewer::Viewer()
{
osg::setNotifyLevel( osg::NOTICE );
//osg::DisplaySettings::instance()->setNumMultiSamples( 4 );
setThreadingModel( osgViewer::Viewer::SingleThreaded );
osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits;
{
osg::DisplaySettings* ds = osg::DisplaySettings::instance().get();
traits->windowName = "Simple Viewer";
traits->windowDecoration = true;
traits->x = 0;
traits->y = 0;
traits->width = WINDOW_WIDTH;
traits->height = WINDOW_HEIGHT;
traits->doubleBuffer = true;
traits->alpha = ds->getMinimumNumAlphaBits();
traits->stencil = ds->getMinimumNumStencilBits();
traits->sampleBuffers = ds->getMultiSamples();
traits->samples = ds->getNumMultiSamples();
}
setUpViewInWindow( 0, 0, traits->width, traits->height );
{
osg::Camera* camera = getCamera();
camera->setClearColor( osg::Vec4( 204.0/255, 204.0/255, 204.0/255, 1 ) );
//camera->setViewport( new osg::Viewport( 0, 0, traits->width, traits->height ) );
//camera->setProjectionMatrixAsPerspective( 30.0f, double( traits->width )/double( traits->height ), 1.0f, 100000.0f );
//camera->setComputeNearFarMode(osg::CullSettings::COMPUTE_NEAR_FAR_USING_BOUNDING_VOLUMES);
//camera->setComputeNearFarMode(osg::CullSettings::COMPUTE_NEAR_FAR_USING_BOUNDING_VOLUMES);
_root = new osg::Group;
// create sunlight
//setLightingMode( osg::View::SKY_LIGHT );
//getLight()->setPosition(osg::Vec4(1000,2000,3000,0));
//getLight()->setDirection(osg::Vec3(-1,-2,-3));
//getLight()->setAmbient(osg::Vec4( 0.6,0.6,0.6,1 ));
//getLight()->setDiffuse(osg::Vec4( 0.6,0.6,0.6,1 ));
//getLight()->setSpecular(osg::Vec4( 0.9,0.9,0.9,1 ));
osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
keyswitchManipulator->addMatrixManipulator( '1', "Terrain", new osgGA::TerrainManipulator() );
keyswitchManipulator->addMatrixManipulator( '2', "Orbit", new osgGA::OrbitManipulator() );
keyswitchManipulator->addMatrixManipulator( '3', "Trackball", new osgGA::TrackballManipulator() );
setCameraManipulator( keyswitchManipulator.get() );
addEventHandler( new osgViewer::WindowSizeHandler );
addEventHandler( new osgViewer::StatsHandler );
addEventHandler( new osgGA::StateSetManipulator( getCamera()->getOrCreateStateSet() ) );
addEventHandler( new osgViewer::ScreenCaptureHandler );
setFrameStamp( new osg::FrameStamp );
setSceneData( _root.get() );
}
// back alpha blending for "transparency"
{
osg::StateSet* ss = _root->getOrCreateStateSet();
ss->setAttributeAndModes( new osg::CullFace( osg::CullFace::BACK ), osg::StateAttribute::ON );
ss->setMode( GL_BLEND, osg::StateAttribute::ON );
}
// SSAO
if( 0 ) {
osg::StateSet* stateset = _root->getOrCreateStateSet();
//osg::ref_ptr<osg::Program> program = new osg::Program;
//program->addShader( new osg::Shader(osg::Shader::VERTEX, vertSourceSSAO) );
//program->addShader( new osg::Shader(osg::Shader::FRAGMENT, fragSourceSSAO) );
//stateset->setAttributeAndModes( program.get() );
stateset->addUniform( new osg::Uniform( "m_SubPixelShift", .5f ) );
stateset->addUniform( new osg::Uniform( "m_SpanMax", 5.f ) );
stateset->addUniform( new osg::Uniform( "m_ReduceMul", 1.f ) );
stateset->addUniform( new osg::Uniform( "g_Resolution", osg::Vec2( WINDOW_WIDTH, WINDOW_HEIGHT ) ) );
osg::Texture2D* texture = new osg::Texture2D();
texture->setTextureSize( WINDOW_WIDTH,WINDOW_HEIGHT );
texture->setInternalFormat( GL_RGBA );
texture->setWrap( osg::Texture2D::WRAP_S,osg::Texture2D::CLAMP_TO_EDGE );
texture->setWrap( osg::Texture2D::WRAP_T,osg::Texture2D::CLAMP_TO_EDGE );
texture->setFilter( osg::Texture2D::MIN_FILTER,osg::Texture2D::LINEAR );
texture->setFilter( osg::Texture2D::MAG_FILTER,osg::Texture2D::LINEAR );
osg::Camera* camera = new osg::Camera;
camera->addChild( _root.get() );
osg::Group* newRoot = new osg::Group;
newRoot->addChild( camera );
setSceneData( newRoot );
camera->setRenderOrder( osg::Camera::PRE_RENDER );
camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
//camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
camera->attach( osg::Camera::COLOR_BUFFER, texture );
camera->setClearMask( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
//camera->setProjectionMatrixAsOrtho2D(0, 0, WINDOW_HEIGHT, WINDOW_WIDTH);
//setCameraManipulator( new osgGA::OrbitManipulator );
stateset->addUniform( new osg::Uniform( "m_Texture", texture ) );
// original image view
if( 1 ) {
//osg::Texture2D* tex = new osg::Texture2D;
osg::Geode* geode = new osg::Geode();
osg::Geometry* geom = new osg::Geometry();
geode->addDrawable( geom );
osg::Vec3Array* vtx = new osg::Vec3Array;
vtx->push_back( osg::Vec3( 0, 0, 0 ) ); // front left
vtx->push_back( osg::Vec3( WINDOW_WIDTH, 0, 0 ) ); // front right
vtx->push_back( osg::Vec3( WINDOW_WIDTH, WINDOW_HEIGHT, 0 ) ); // back right
vtx->push_back( osg::Vec3( 0,WINDOW_HEIGHT, 0 ) ); // back left
geom->setVertexArray( vtx );
osg::DrawElementsUInt* quads = new osg::DrawElementsUInt( osg::PrimitiveSet::QUADS, 0 );
quads->push_back( 0 );
quads->push_back( 1 );
quads->push_back( 2 );
quads->push_back( 3 );
geom->addPrimitiveSet( quads );
osg::Vec2Array* texcoords = new osg::Vec2Array( 5 );
( *texcoords )[0].set( 0.f,0.f ); // tex coord for vertex 0
( *texcoords )[1].set( 1.f,0.f ); // tex coord for vertex 1
( *texcoords )[2].set( 1.f,1.f ); // tex coord for vertex 1
( *texcoords )[3].set( 0.f,1.f ); // tex coord for vertex 1
geom->setTexCoordArray( 0,texcoords );
geode->getOrCreateStateSet()->setTextureAttributeAndModes( 0,texture,osg::StateAttribute::ON );
osg::Camera* normalCamera = new osg::Camera();
normalCamera->setClearColor( osg::Vec4( 0.4f,0.4f,0.4f,1.0f ) );
normalCamera->setClearMask( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT );
normalCamera->setViewport( 0,0,WINDOW_WIDTH,WINDOW_HEIGHT );
normalCamera->setProjectionMatrixAsOrtho2D( 0,WINDOW_HEIGHT,0,WINDOW_HEIGHT );
normalCamera->setReferenceFrame( osg::Transform::ABSOLUTE_RF );
normalCamera->setViewMatrix( osg::Matrix::identity() );
normalCamera->setComputeNearFarMode( osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR );
normalCamera->addChild( geode );
//textureGroup->addChild( normalCamera );
newRoot->addChild( normalCamera );
}
}
realize();
}
