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()->setDescription(arguments.getApplicationName() + " is the example which demonstrates using of GL_ARB_shadow extension implemented in osg::Texture class");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName());
arguments.getApplicationUsage()->addCommandLineOption("-h or --help", "Display this information");
arguments.getApplicationUsage()->addCommandLineOption("--positionalLight", "Use a positional light.");
arguments.getApplicationUsage()->addCommandLineOption("--directionalLight", "Use a direction light.");
arguments.getApplicationUsage()->addCommandLineOption("--noUpdate", "Disable the updating the of light source.");
arguments.getApplicationUsage()->addCommandLineOption("--castsShadowMask", "Override default castsShadowMask (default - 0x2)");
arguments.getApplicationUsage()->addCommandLineOption("--receivesShadowMask", "Override default receivesShadowMask (default - 0x1)");
arguments.getApplicationUsage()->addCommandLineOption("--base", "Add a base geometry to test shadows.");
arguments.getApplicationUsage()->addCommandLineOption("--sv", "Select ShadowVolume implementation.");
arguments.getApplicationUsage()->addCommandLineOption("--ssm", "Select SoftShadowMap implementation.");
arguments.getApplicationUsage()->addCommandLineOption("--sm", "Select ShadowMap implementation.");
arguments.getApplicationUsage()->addCommandLineOption("--pssm", "Select ParallelSplitShadowMap implementation.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--mapcount", "ParallelSplitShadowMap texture count.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--mapres", "ParallelSplitShadowMap texture resolution.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--debug-color", "ParallelSplitShadowMap display debugging color (only the first 3 maps are color r=0,g=1,b=2.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--minNearSplit", "ParallelSplitShadowMap shadow map near offset.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--maxFarDist", "ParallelSplitShadowMap max far distance to shadow.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--moveVCamFactor", "ParallelSplitShadowMap move the virtual frustum behind the real camera, (also back ground object can cast shadow).");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--PolyOffset-Factor", "ParallelSplitShadowMap set PolygonOffset factor.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--PolyOffset-Unit", "ParallelSplitShadowMap set PolygonOffset unit.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--lispsm", "Select LightSpacePerspectiveShadowMap implementation.");
arguments.getApplicationUsage()->addCommandLineOption("--msm", "Select MinimalShadowMap implementation.");
arguments.getApplicationUsage()->addCommandLineOption("--ViewBounds", "MSM, LiSPSM optimize shadow for view frustum (weakest option)");
arguments.getApplicationUsage()->addCommandLineOption("--CullBounds", "MSM, LiSPSM optimize shadow for bounds of culled objects in view frustum (better option).");
arguments.getApplicationUsage()->addCommandLineOption("--DrawBounds", "MSM, LiSPSM optimize shadow for bounds of predrawn pixels in view frustum (best & default).");
arguments.getApplicationUsage()->addCommandLineOption("--mapres", "MSM, LiSPSM & texture resolution.");
arguments.getApplicationUsage()->addCommandLineOption("--maxFarDist", "MSM, LiSPSM max far distance to shadow.");
arguments.getApplicationUsage()->addCommandLineOption("--moveVCamFactor", "MSM, LiSPSM move the virtual frustum behind the real camera, (also back ground object can cast shadow).");
arguments.getApplicationUsage()->addCommandLineOption("--minLightMargin", "MSM, LiSPSM the same as --moveVCamFactor.");
arguments.getApplicationUsage()->addCommandLineOption("-1", "Use test model one.");
arguments.getApplicationUsage()->addCommandLineOption("-2", "Use test model two.");
arguments.getApplicationUsage()->addCommandLineOption("-3", "Use test model three (default).");
arguments.getApplicationUsage()->addCommandLineOption("-4", "Use test model four - island scene.");
arguments.getApplicationUsage()->addCommandLineOption("--two-sided", "Use two-sided stencil extension for shadow volumes.");
arguments.getApplicationUsage()->addCommandLineOption("--two-pass", "Use two-pass stencil for shadow volumes.");
arguments.getApplicationUsage()->addCommandLineOption("--near-far-mode","COMPUTE_NEAR_USING_PRIMITIVES, COMPUTE_NEAR_FAR_USING_PRIMITIVES, COMPUTE_NEAR_FAR_USING_BOUNDING_VOLUMES, DO_NOT_COMPUTE_NEAR_FAR");
arguments.getApplicationUsage()->addCommandLineOption("--max-shadow-distance","<float> Maximum distance that the shadow map should extend from the eye point.");
// construct the viewer.
osgViewer::Viewer viewer(arguments);
// if user request help write it out to cout.
if (arguments.read("-h") || arguments.read("--help"))
{
arguments.getApplicationUsage()->write(std::cout);
return 1;
}
double zNear=1.0, zMid=10.0, zFar=1000.0;
if (arguments.read("--depth-partition",zNear, zMid, zFar))
{
// set up depth partitioning
osg::ref_ptr<osgViewer::DepthPartitionSettings> dps = new osgViewer::DepthPartitionSettings;
dps->_mode = osgViewer::DepthPartitionSettings::FIXED_RANGE;
dps->_zNear = zNear;
dps->_zMid = zMid;
dps->_zFar = zFar;
viewer.setUpDepthPartition(dps.get());
}
if (arguments.read("--dp"))
{
// set up depth partitioning
viewer.setUpDepthPartition();
}
float fov = 0.0;
while (arguments.read("--fov",fov)) {}
osg::Vec4 lightpos(0.0,0.0,1,0.0);
bool spotlight = false;
while (arguments.read("--positionalLight")) { lightpos.set(0.5,0.5,1.5,1.0); }
while (arguments.read("--directionalLight")) { lightpos.set(0.0,0.0,1,0.0); }
while (arguments.read("--spotLight")) { lightpos.set(0.5,0.5,1.5,1.0); spotlight = true; }
bool keepLightPos = false;
osg::Vec3 spotLookat(0.0,0.0,0.0);
while ( arguments.read("--light-pos", lightpos.x(), lightpos.y(), lightpos.z(), lightpos.w())) { keepLightPos = true; }
while ( arguments.read("--light-pos", lightpos.x(), lightpos.y(), lightpos.z())) { lightpos.w()=1.0; keepLightPos = true; }
while ( arguments.read("--light-dir", lightpos.x(), lightpos.y(), lightpos.z())) { lightpos.w()=0.0; keepLightPos = true; }
while ( arguments.read("--spot-lookat", spotLookat.x(), spotLookat.y(), spotLookat.z())) { }
while (arguments.read("--castsShadowMask", CastsShadowTraversalMask ));
while (arguments.read("--receivesShadowMask", ReceivesShadowTraversalMask ));
bool updateLightPosition = true;
while (arguments.read("--noUpdate")) updateLightPosition = false;
// set up the camera manipulators.
{
osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
keyswitchManipulator->addMatrixManipulator( '1', "Trackball", new osgGA::TrackballManipulator() );
keyswitchManipulator->addMatrixManipulator( '2', "Flight", new osgGA::FlightManipulator() );
keyswitchManipulator->addMatrixManipulator( '3', "Drive", new osgGA::DriveManipulator() );
keyswitchManipulator->addMatrixManipulator( '4', "Terrain", new osgGA::TerrainManipulator() );
std::string pathfile;
char keyForAnimationPath = '5';
while (arguments.read("-p",pathfile))
{
osgGA::AnimationPathManipulator* apm = new osgGA::AnimationPathManipulator(pathfile);
if (apm || !apm->valid())
{
unsigned int num = keyswitchManipulator->getNumMatrixManipulators();
keyswitchManipulator->addMatrixManipulator( keyForAnimationPath, "Path", apm );
keyswitchManipulator->selectMatrixManipulator(num);
++keyForAnimationPath;
}
}
viewer.setCameraManipulator( keyswitchManipulator.get() );
}
// add the state manipulator
viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
// add stats
viewer.addEventHandler( new osgViewer::StatsHandler() );
// add the record camera path handler
viewer.addEventHandler(new osgViewer::RecordCameraPathHandler);
// add the window size toggle handler
viewer.addEventHandler(new osgViewer::WindowSizeHandler);
// add the threading handler
viewer.addEventHandler( new osgViewer::ThreadingHandler() );
osg::ref_ptr<osgShadow::ShadowedScene> shadowedScene = new osgShadow::ShadowedScene;
osgShadow::ShadowSettings* settings = shadowedScene->getShadowSettings();
settings->setReceivesShadowTraversalMask(ReceivesShadowTraversalMask);
settings->setCastsShadowTraversalMask(CastsShadowTraversalMask);
std::string nearFarMode("");
if (arguments.read("--near-far-mode",nearFarMode))
{
if (nearFarMode=="COMPUTE_NEAR_USING_PRIMITIVES") settings->setComputeNearFarModeOverride(osg::CullSettings::COMPUTE_NEAR_USING_PRIMITIVES);
else if (nearFarMode=="COMPUTE_NEAR_FAR_USING_PRIMITIVES") settings->setComputeNearFarModeOverride(osg::CullSettings::COMPUTE_NEAR_FAR_USING_PRIMITIVES);
else if (nearFarMode=="DO_NOT_COMPUTE_NEAR_FAR") settings->setComputeNearFarModeOverride(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
else if (nearFarMode=="COMPUTE_NEAR_FAR_USING_BOUNDING_VOLUMES") settings->setComputeNearFarModeOverride(osg::CullSettings::COMPUTE_NEAR_FAR_USING_BOUNDING_VOLUMES);
OSG_NOTICE<<"ComputeNearFarModeOverride set to ";
switch(settings->getComputeNearFarModeOverride())
{
case(osg::CullSettings::COMPUTE_NEAR_FAR_USING_BOUNDING_VOLUMES): OSG_NOTICE<<"COMPUTE_NEAR_FAR_USING_BOUNDING_VOLUMES"; break;
case(osg::CullSettings::COMPUTE_NEAR_USING_PRIMITIVES): OSG_NOTICE<<"COMPUTE_NEAR_USING_PRIMITIVES"; break;
case(osg::CullSettings::COMPUTE_NEAR_FAR_USING_PRIMITIVES): OSG_NOTICE<<"COMPUTE_NEAR_FAR_USING_PRIMITIVES"; break;
case(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR): OSG_NOTICE<<"DO_NOT_COMPUTE_NEAR_FAR"; break;
}
OSG_NOTICE<<std::endl;
}
double distance;
if (arguments.read("--max-shadow-distance",distance))
{
settings->setMaximumShadowMapDistance(distance);
OSG_NOTICE<<"MaximumShadowMapDistance set to "<<settings->getMaximumShadowMapDistance()<<std::endl;
}
osg::ref_ptr<osgShadow::MinimalShadowMap> msm = NULL;
if (arguments.read("--no-shadows"))
{
OSG_NOTICE<<"Not using a ShadowTechnique"<<std::endl;
shadowedScene->setShadowTechnique(0);
}
else if (arguments.read("--sv"))
{
// hint to tell viewer to request stencil buffer when setting up windows
osg::DisplaySettings::instance()->setMinimumNumStencilBits(8);
osg::ref_ptr<osgShadow::ShadowVolume> sv = new osgShadow::ShadowVolume;
sv->setDynamicShadowVolumes(updateLightPosition);
while (arguments.read("--two-sided")) sv->setDrawMode(osgShadow::ShadowVolumeGeometry::STENCIL_TWO_SIDED);
while (arguments.read("--two-pass")) sv->setDrawMode(osgShadow::ShadowVolumeGeometry::STENCIL_TWO_PASS);
shadowedScene->setShadowTechnique(sv.get());
}
else if (arguments.read("--st"))
{
osg::ref_ptr<osgShadow::ShadowTexture> st = new osgShadow::ShadowTexture;
shadowedScene->setShadowTechnique(st.get());
}
else if (arguments.read("--stsm"))
{
osg::ref_ptr<osgShadow::StandardShadowMap> st = new osgShadow::StandardShadowMap;
shadowedScene->setShadowTechnique(st.get());
}
else if (arguments.read("--pssm"))
{
int mapcount = 3;
while (arguments.read("--mapcount", mapcount));
osg::ref_ptr<osgShadow::ParallelSplitShadowMap> pssm = new osgShadow::ParallelSplitShadowMap(NULL,mapcount);
int mapres = 1024;
while (arguments.read("--mapres", mapres))
pssm->setTextureResolution(mapres);
while (arguments.read("--debug-color")) { pssm->setDebugColorOn(); }
int minNearSplit=0;
while (arguments.read("--minNearSplit", minNearSplit))
if ( minNearSplit > 0 ) {
pssm->setMinNearDistanceForSplits(minNearSplit);
std::cout << "ParallelSplitShadowMap : setMinNearDistanceForSplits(" << minNearSplit <<")" << std::endl;
}
int maxfardist = 0;
while (arguments.read("--maxFarDist", maxfardist))
if ( maxfardist > 0 ) {
pssm->setMaxFarDistance(maxfardist);
std::cout << "ParallelSplitShadowMap : setMaxFarDistance(" << maxfardist<<")" << std::endl;
}
int moveVCamFactor = 0;
while (arguments.read("--moveVCamFactor", moveVCamFactor))
if ( maxfardist > 0 ) {
pssm->setMoveVCamBehindRCamFactor(moveVCamFactor);
std::cout << "ParallelSplitShadowMap : setMoveVCamBehindRCamFactor(" << moveVCamFactor<<")" << std::endl;
}
double polyoffsetfactor = pssm->getPolygonOffset().x();
double polyoffsetunit = pssm->getPolygonOffset().y();
while (arguments.read("--PolyOffset-Factor", polyoffsetfactor));
while (arguments.read("--PolyOffset-Unit", polyoffsetunit));
pssm->setPolygonOffset(osg::Vec2(polyoffsetfactor,polyoffsetunit));
shadowedScene->setShadowTechnique(pssm.get());
}
else if (arguments.read("--ssm"))
{
osg::ref_ptr<osgShadow::SoftShadowMap> sm = new osgShadow::SoftShadowMap;
shadowedScene->setShadowTechnique(sm.get());
}
else if( arguments.read("--vdsm") )
{
while( arguments.read("--debugHUD") ) settings->setDebugDraw( true );
if (arguments.read("--persp")) settings->setShadowMapProjectionHint(osgShadow::ShadowSettings::PERSPECTIVE_SHADOW_MAP);
if (arguments.read("--ortho")) settings->setShadowMapProjectionHint(osgShadow::ShadowSettings::ORTHOGRAPHIC_SHADOW_MAP);
unsigned int unit=1;
if (arguments.read("--unit",unit)) settings->setBaseShadowTextureUnit(unit);
double n=0.0;
if (arguments.read("-n",n)) settings->setMinimumShadowMapNearFarRatio(n);
unsigned int numShadowMaps;
if (arguments.read("--num-sm",numShadowMaps)) settings->setNumShadowMapsPerLight(numShadowMaps);
if (arguments.read("--parallel-split") || arguments.read("--ps") ) settings->setMultipleShadowMapHint(osgShadow::ShadowSettings::PARALLEL_SPLIT);
if (arguments.read("--cascaded")) settings->setMultipleShadowMapHint(osgShadow::ShadowSettings::CASCADED);
int mapres = 1024;
while (arguments.read("--mapres", mapres))
settings->setTextureSize(osg::Vec2s(mapres,mapres));
osg::ref_ptr<osgShadow::ViewDependentShadowMap> vdsm = new osgShadow::ViewDependentShadowMap;
shadowedScene->setShadowTechnique(vdsm.get());
}
else if ( arguments.read("--lispsm") )
{
if( arguments.read( "--ViewBounds" ) )
msm = new osgShadow::LightSpacePerspectiveShadowMapVB;
else if( arguments.read( "--CullBounds" ) )
msm = new osgShadow::LightSpacePerspectiveShadowMapCB;
else // if( arguments.read( "--DrawBounds" ) ) // default
msm = new osgShadow::LightSpacePerspectiveShadowMapDB;
}
else if( arguments.read("--msm") )
{
if( arguments.read( "--ViewBounds" ) )
msm = new osgShadow::MinimalShadowMap;
else if( arguments.read( "--CullBounds" ) )
msm = new osgShadow::MinimalCullBoundsShadowMap;
else // if( arguments.read( "--DrawBounds" ) ) // default
msm = new osgShadow::MinimalDrawBoundsShadowMap;
}
else /* if (arguments.read("--sm")) */
{
osg::ref_ptr<osgShadow::ShadowMap> sm = new osgShadow::ShadowMap;
shadowedScene->setShadowTechnique(sm.get());
int mapres = 1024;
while (arguments.read("--mapres", mapres))
sm->setTextureSize(osg::Vec2s(mapres,mapres));
}
if( msm )// Set common MSM & LISPSM arguments
{
shadowedScene->setShadowTechnique( msm.get() );
while( arguments.read("--debugHUD") ) msm->setDebugDraw( true );
float minLightMargin = 10.f;
float maxFarPlane = 0;
unsigned int texSize = 1024;
unsigned int baseTexUnit = 0;
unsigned int shadowTexUnit = 1;
while ( arguments.read("--moveVCamFactor", minLightMargin ) );
while ( arguments.read("--minLightMargin", minLightMargin ) );
while ( arguments.read("--maxFarDist", maxFarPlane ) );
while ( arguments.read("--mapres", texSize ));
while ( arguments.read("--baseTextureUnit", baseTexUnit) );
while ( arguments.read("--shadowTextureUnit", shadowTexUnit) );
msm->setMinLightMargin( minLightMargin );
msm->setMaxFarPlane( maxFarPlane );
msm->setTextureSize( osg::Vec2s( texSize, texSize ) );
msm->setShadowTextureCoordIndex( shadowTexUnit );
msm->setShadowTextureUnit( shadowTexUnit );
msm->setBaseTextureCoordIndex( baseTexUnit );
msm->setBaseTextureUnit( baseTexUnit );
}
OSG_INFO<<"shadowedScene->getShadowTechnique()="<<shadowedScene->getShadowTechnique()<<std::endl;
osg::ref_ptr<osg::Node> model = osgDB::readNodeFiles(arguments);
if (model.valid())
{
model->setNodeMask(CastsShadowTraversalMask | ReceivesShadowTraversalMask);
}
else
{
model = createTestModel(arguments);
}
// get the bounds of the model.
osg::ComputeBoundsVisitor cbbv;
model->accept(cbbv);
osg::BoundingBox bb = cbbv.getBoundingBox();
if (lightpos.w()==1.0 && !keepLightPos)
{
lightpos.x() = bb.xMin()+(bb.xMax()-bb.xMin())*lightpos.x();
lightpos.y() = bb.yMin()+(bb.yMax()-bb.yMin())*lightpos.y();
lightpos.z() = bb.zMin()+(bb.zMax()-bb.zMin())*lightpos.z();
}
if ( arguments.read("--base"))
{
osg::Geode* geode = new osg::Geode;
osg::Vec3 widthVec(bb.radius(), 0.0f, 0.0f);
osg::Vec3 depthVec(0.0f, bb.radius(), 0.0f);
osg::Vec3 centerBase( (bb.xMin()+bb.xMax())*0.5f, (bb.yMin()+bb.yMax())*0.5f, bb.zMin()-bb.radius()*0.1f );
geode->addDrawable( osg::createTexturedQuadGeometry( centerBase-widthVec*1.5f-depthVec*1.5f,
widthVec*3.0f, depthVec*3.0f) );
geode->setNodeMask(shadowedScene->getReceivesShadowTraversalMask());
geode->getOrCreateStateSet()->setTextureAttributeAndModes(0, new osg::Texture2D(osgDB::readImageFile("Images/lz.rgb")));
shadowedScene->addChild(geode);
}
osg::ref_ptr<osg::LightSource> ls = new osg::LightSource;
ls->getLight()->setPosition(lightpos);
if (spotlight)
{
osg::Vec3 center = spotLookat;
osg::Vec3 lightdir = center - osg::Vec3(lightpos.x(), lightpos.y(), lightpos.z());
lightdir.normalize();
ls->getLight()->setDirection(lightdir);
ls->getLight()->setSpotCutoff(25.0f);
//set the LightSource, only for checking, there is only 1 light in the scene
osgShadow::ShadowMap* shadowMap = dynamic_cast<osgShadow::ShadowMap*>(shadowedScene->getShadowTechnique());
if( shadowMap ) shadowMap->setLight(ls.get());
}
if ( arguments.read("--coloured-light"))
{
ls->getLight()->setAmbient(osg::Vec4(1.0,0.0,0.0,1.0));
ls->getLight()->setDiffuse(osg::Vec4(0.0,1.0,0.0,1.0));
}
else
{
ls->getLight()->setAmbient(osg::Vec4(0.2,0.2,0.2,1.0));
ls->getLight()->setDiffuse(osg::Vec4(0.8,0.8,0.8,1.0));
}
shadowedScene->addChild(model.get());
shadowedScene->addChild(ls.get());
viewer.setSceneData(shadowedScene.get());
osg::ref_ptr< DumpShadowVolumesHandler > dumpShadowVolumes = new DumpShadowVolumesHandler;
viewer.addEventHandler(new ChangeFOVHandler(viewer.getCamera()));
viewer.addEventHandler( dumpShadowVolumes.get() );
// create the windows and run the threads.
viewer.realize();
if (fov!=0.0)
{
double fovy, aspectRatio, zNear, zFar;
viewer.getCamera()->getProjectionMatrix().getPerspective(fovy, aspectRatio, zNear, zFar);
std::cout << "Setting FOV to " << fov << std::endl;
viewer.getCamera()->getProjectionMatrix().makePerspective(fov, aspectRatio, zNear, zFar);
}
// it is done after viewer.realize() so that the windows are already initialized
if ( arguments.read("--debugHUD"))
{
osgViewer::Viewer::Windows windows;
viewer.getWindows(windows);
if (windows.empty()) return 1;
osgShadow::ShadowMap* sm = dynamic_cast<osgShadow::ShadowMap*>(shadowedScene->getShadowTechnique());
if( sm ) {
osg::ref_ptr<osg::Camera> hudCamera = sm->makeDebugHUD();
// set up cameras to rendering on the first window available.
hudCamera->setGraphicsContext(windows[0]);
hudCamera->setViewport(0,0,windows[0]->getTraits()->width, windows[0]->getTraits()->height);
viewer.addSlave(hudCamera.get(), false);
}
}
osg::ref_ptr<LightAnimationHandler> lightAnimationHandler = updateLightPosition ? new LightAnimationHandler : 0;
if (lightAnimationHandler) viewer.addEventHandler(lightAnimationHandler.get());
// osgDB::writeNodeFile(*group,"test.osgt");
while (!viewer.done())
{
{
osgShadow::MinimalShadowMap * msm = dynamic_cast<osgShadow::MinimalShadowMap*>( shadowedScene->getShadowTechnique() );
if( msm ) {
// If scene decorated by CoordinateSystemNode try to find localToWorld
// and set modellingSpaceToWorld matrix to optimize scene bounds computation
osg::NodePath np = viewer.getCoordinateSystemNodePath();
if( !np.empty() ) {
osg::CoordinateSystemNode * csn =
dynamic_cast<osg::CoordinateSystemNode *>( np.back() );
if( csn ) {
osg::Vec3d pos =
viewer.getCameraManipulator()->getMatrix().getTrans();
msm->setModellingSpaceToWorldTransform
( csn->computeLocalCoordinateFrame( pos ) );
}
}
}
}
if (lightAnimationHandler.valid() && lightAnimationHandler ->getAnimating())
{
float t = viewer.getFrameStamp()->getSimulationTime();
if (lightpos.w()==1.0)
{
lightpos.set(bb.center().x()+sinf(t)*bb.radius(), bb.center().y() + cosf(t)*bb.radius(), bb.zMax() + bb.radius()*3.0f ,1.0f);
}
else
{
lightpos.set(sinf(t),cosf(t),1.0f,0.0f);
}
ls->getLight()->setPosition(lightpos);
osg::Vec3f lightDir(-lightpos.x(),-lightpos.y(),-lightpos.z());
if(spotlight)
lightDir = osg::Vec3(bb.center().x()+sinf(t)*bb.radius()/2.0, bb.center().y() + cosf(t)*bb.radius()/2.0, bb.center().z())
- osg::Vec3(lightpos.x(), lightpos.y(), lightpos.z()) ;
lightDir.normalize();
ls->getLight()->setDirection(lightDir);
}
if( dumpShadowVolumes->get() )
{
dumpShadowVolumes->set( false );
static int dumpFileNo = 0;
dumpFileNo ++;
char filename[256];
std::sprintf( filename, "shadowDump%d.osgt", dumpFileNo );
osgShadow::MinimalShadowMap * msm = dynamic_cast<osgShadow::MinimalShadowMap*>( shadowedScene->getShadowTechnique() );
if( msm ) msm->setDebugDump( filename );
}
viewer.frame();
}
return 0;
}
/**
* GeometryUtils
*/
JNIEXPORT jlong JNICALL Java_org_openscenegraph_osg_util_GeometryUtils_nativeCreateScreenQuad(JNIEnv *env, jclass,
jint x, jint y, jint w, jint h, jboolean isBackGround)
{
osg::Camera *hud = new osg::Camera();
float z=-1.0f;
osg::Vec4 color((float)(rand()%10)/10.0,1,(float)(rand()%10)/10.0,1);
hud->setProjectionMatrix(osg::Matrix::ortho2D(0,w,0,h));
hud->setViewport(x,y,w,h);
hud->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
hud->setViewMatrix(osg::Matrix::identity());
hud->setInheritanceMask(hud->getInheritanceMask() & ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE);
hud->setAllowEventFocus(false);
hud->getOrCreateStateSet()->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
if(isBackGround == JNI_TRUE)
{
hud->setRenderOrder(osg::Camera::NESTED_RENDER);
//hud->getOrCreateStateSet()->setRenderBinDetails(1,"DepthSortedBin");
hud->getOrCreateStateSet()->setMode(GL_DEPTH_TEST,osg::StateAttribute::OFF);
hud->getOrCreateStateSet()->setTextureMode(0,GL_TEXTURE_2D,osg::StateAttribute::ON);
}
osg::ref_ptr<osg::Geode> geode = new osg::Geode();
osg::ref_ptr<osg::Geometry> plane = new osg::Geometry;
osg::Vec3 corner(0,0,z);
osg::Vec3 widthVec(w, 0.0, z);
osg::Vec3 heightVec(0.0, h, z);
float l = 0.0f;
float b = 0.0f;
float r = 1.0;
float t = 1.0;
osg::Vec3Array* coords = new osg::Vec3Array(4);
(*coords)[0] = corner+heightVec;
(*coords)[1] = corner;
(*coords)[2] = corner+widthVec;
(*coords)[3] = corner+widthVec+heightVec;
plane->setVertexArray(coords);
osg::Vec2Array* tcoords = new osg::Vec2Array(4);
(*tcoords)[0].set(l,t);
(*tcoords)[1].set(l,b);
(*tcoords)[2].set(r,b);
(*tcoords)[3].set(r,t);
plane->setTexCoordArray(0,tcoords);
osg::Vec4Array* colours = new osg::Vec4Array(1);
(*colours)[0] = color;
plane->setColorArray(colours);
plane->setColorBinding(osg::Geometry::BIND_OVERALL);
osg::Vec3Array* normals = new osg::Vec3Array(1);
(*normals)[0] = widthVec^heightVec;
(*normals)[0].normalize();
plane->setNormalArray(normals);
plane->setNormalBinding(osg::Geometry::BIND_OVERALL);
plane->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS,0,4));
geode->addDrawable(plane.get());
hud->addChild(geode.get());
hud->ref();
return reinterpret_cast<jlong>(hud);
}
/*! \internal
Draws the line ending with the specified \a painter at the position \a pos. The direction of the
line ending is controlled with \a dir.
*/
void QCPLineEnding::draw(QCPPainter *painter, const QVector2D &pos, const QVector2D &dir) const
{
if (mStyle == esNone)
return;
QVector2D lengthVec(dir.normalized());
if (lengthVec.isNull())
lengthVec = QVector2D(1, 0);
QVector2D widthVec(-lengthVec.y(), lengthVec.x());
lengthVec *= (float)(mLength*(mInverted ? -1 : 1));
widthVec *= (float)(mWidth*0.5*(mInverted ? -1 : 1));
QPen penBackup = painter->pen();
QBrush brushBackup = painter->brush();
QPen miterPen = penBackup;
miterPen.setJoinStyle(Qt::MiterJoin); // to make arrow heads spikey
QBrush brush(painter->pen().color(), Qt::SolidPattern);
switch (mStyle)
{
case esNone: break;
case esFlatArrow:
{
QPointF points[3] = {pos.toPointF(),
(pos-lengthVec+widthVec).toPointF(),
(pos-lengthVec-widthVec).toPointF()
};
painter->setPen(miterPen);
painter->setBrush(brush);
painter->drawConvexPolygon(points, 3);
painter->setBrush(brushBackup);
painter->setPen(penBackup);
break;
}
case esSpikeArrow:
{
QPointF points[4] = {pos.toPointF(),
(pos-lengthVec+widthVec).toPointF(),
(pos-lengthVec*0.8f).toPointF(),
(pos-lengthVec-widthVec).toPointF()
};
painter->setPen(miterPen);
painter->setBrush(brush);
painter->drawConvexPolygon(points, 4);
painter->setBrush(brushBackup);
painter->setPen(penBackup);
break;
}
case esLineArrow:
{
QPointF points[3] = {(pos-lengthVec+widthVec).toPointF(),
pos.toPointF(),
(pos-lengthVec-widthVec).toPointF()
};
painter->setPen(miterPen);
painter->drawPolyline(points, 3);
painter->setPen(penBackup);
break;
}
case esDisc:
{
painter->setBrush(brush);
painter->drawEllipse(pos.toPointF(), mWidth*0.5, mWidth*0.5);
painter->setBrush(brushBackup);
break;
}
case esSquare:
{
QVector2D widthVecPerp(-widthVec.y(), widthVec.x());
QPointF points[4] = {(pos-widthVecPerp+widthVec).toPointF(),
(pos-widthVecPerp-widthVec).toPointF(),
(pos+widthVecPerp-widthVec).toPointF(),
(pos+widthVecPerp+widthVec).toPointF()
};
painter->setPen(miterPen);
painter->setBrush(brush);
painter->drawConvexPolygon(points, 4);
painter->setBrush(brushBackup);
painter->setPen(penBackup);
break;
}
case esDiamond:
{
QVector2D widthVecPerp(-widthVec.y(), widthVec.x());
QPointF points[4] = {(pos-widthVecPerp).toPointF(),
(pos-widthVec).toPointF(),
(pos+widthVecPerp).toPointF(),
(pos+widthVec).toPointF()
};
painter->setPen(miterPen);
painter->setBrush(brush);
painter->drawConvexPolygon(points, 4);
painter->setBrush(brushBackup);
painter->setPen(penBackup);
break;
}
case esBar:
{
painter->drawLine((pos+widthVec).toPointF(), (pos-widthVec).toPointF());
break;
}
case esHalfBar:
{
painter->drawLine((pos+widthVec).toPointF(), pos.toPointF());
break;
}
case esSkewedBar:
{
if (qFuzzyIsNull(painter->pen().widthF()) && !painter->modes().testFlag(QCPPainter::pmNonCosmetic))
{
// if drawing with cosmetic pen (perfectly thin stroke, happens only in vector exports), draw bar exactly on tip of line
painter->drawLine((pos+widthVec+lengthVec*0.2f*(mInverted?-1:1)).toPointF(),
(pos-widthVec-lengthVec*0.2f*(mInverted?-1:1)).toPointF());
} else
{
// if drawing with thick (non-cosmetic) pen, shift bar a little in line direction to prevent line from sticking through bar slightly
painter->drawLine((pos+widthVec+lengthVec*0.2f*(mInverted?-1:1)+dir.normalized()*qMax(1.0f, (float)painter->pen().widthF())*0.5f).toPointF(),
(pos-widthVec-lengthVec*0.2f*(mInverted?-1:1)+dir.normalized()*qMax(1.0f, (float)painter->pen().widthF())*0.5f).toPointF());
}
break;
}
}
}
