void IntersectionVisitor::apply(osg::Camera& camera)
{
// osg::notify(osg::NOTICE)<<"apply(Camera&)"<<std::endl;
// note, commenting out right now because default Camera setup is with the culling active. Should this be changed?
// if (!enter(camera)) return;
// osg::notify(osg::NOTICE)<<"inside apply(Camera&)"<<std::endl;
if (camera.getViewport()) pushWindowMatrix( camera.getViewport() );
pushProjectionMatrix( new osg::RefMatrix(camera.getProjectionMatrix()) );
pushViewMatrix( new osg::RefMatrix(camera.getViewMatrix()) );
pushModelMatrix( new osg::RefMatrix() );
// now push an new intersector clone transform to the new local coordinates
push_clone();
traverse(camera);
// pop the clone.
pop_clone();
popModelMatrix();
popViewMatrix();
popProjectionMatrix();
if (camera.getViewport()) popWindowMatrix();
// leave();
}
void RemoveQueries::apply( osg::Camera& node )
{
osg::Camera::DrawCallback* cb = node.getPostDrawCallback();
CameraResetCallback* crc = dynamic_cast< CameraResetCallback* >( cb );
if( crc != NULL )
node.setPostDrawCallback( NULL );
traverse( node );
}
void MinimalDrawBoundsShadowMap::ViewData::performBoundAnalysis( const osg::Camera& camera )
{
if( !_projection.valid() )
return;
osg::Camera::BufferAttachmentMap & bam
= const_cast<osg::Camera&>( camera ).getBufferAttachmentMap();
#if ANALYSIS_DEPTH
osg::Camera::Attachment & attachment = bam[ osg::Camera::DEPTH_BUFFER ];
#else
osg::Camera::Attachment & attachment = bam[ osg::Camera::COLOR_BUFFER ];
#endif
const osg::ref_ptr< osg::Image > image = attachment._image.get();
if( !image.valid() )
return;
osg::Matrix m;
m.invert( *_modellingSpaceToWorldPtr *
camera.getViewMatrix() *
camera.getProjectionMatrix() );
m.preMult( osg::Matrix::scale( osg::Vec3( 2.f, 2.f, 2.f ) ) *
osg::Matrix::translate( osg::Vec3( -1.f, -1.f, -1.f ) ) );
osg::BoundingBox bb = scanImage( image.get(), m );
if( getDebugDraw() ) {
ConvexPolyhedron p;
p.setToBoundingBox( bb );
p.transform( *_modellingSpaceToWorldPtr,
osg::Matrix::inverse( *_modellingSpaceToWorldPtr ) );
setDebugPolytope( "scan", p,
osg::Vec4( 0,0,0,1 ), osg::Vec4( 0,0,0,0.1 ) );
}
cutScenePolytope( *_modellingSpaceToWorldPtr,
osg::Matrix::inverse( *_modellingSpaceToWorldPtr ), bb );
frameShadowCastingCamera( _mainCamera.get(), _camera.get() );
_projection->set( _camera->getProjectionMatrix( ) );
BaseClass::ViewData::_texgen->setPlanesFromMatrix(
_camera->getProjectionMatrix() *
osg::Matrix::translate(1.0,1.0,1.0) *
osg::Matrix::scale(0.5,0.5,0.5) );
updateDebugGeometry( _mainCamera.get(), _camera.get() );
}
void AddQueries::apply( osg::Camera& node )
{
if( node.getCullCallback() != NULL )
{
traverse( node );
return;
}
CameraResetCallback* crc = new CameraResetCallback();
// TBD use the osgWorks composite post-draw callback.
node.setPostDrawCallback( crc );
traverse( node );
}
void CompileSlideCallback::operator()(const osg::Camera & camera) const
{
osg::GraphicsContext* context = const_cast<osg::GraphicsContext*>(camera.getGraphicsContext());
if (!context) return;
osg::State* state = context->getState();
if (!state) return;
const osg::FrameStamp* fs = state->getFrameStamp();
if (!fs) return;
if (_needCompile)
{
_frameNumber = fs->getFrameNumber();
_needCompile = false;
}
if (_frameNumber!=fs->getFrameNumber()) return;
osgUtil::GLObjectsVisitor globjVisitor(osgUtil::GLObjectsVisitor::COMPILE_DISPLAY_LISTS|
osgUtil::GLObjectsVisitor::COMPILE_STATE_ATTRIBUTES);
globjVisitor.setTraversalMode(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN);
globjVisitor.setNodeMaskOverride(0xffffffff);
globjVisitor.setState(state);
_sceneToCompile->accept(globjVisitor);
}
void HeadPositionManipulator::updateCamera(osg::Camera & camera)
{
double x = 0.0;
double y = 0.0;
double z = 1.0;
double w = 2.0;
if (_tracker.valid()) {
osg::Vec3 position = _tracker->position();
x = position.x();
y = position.y();
z = position.z() * _depth;
if (z < 1.0) z = 1.0;
}
camera.setViewMatrixAsLookAt(osg::Vec3(x, y, z), osg::Vec3(x, y, 0.0), osg::Vec3(0.0, 1.0, 0.0));
camera.setProjectionMatrixAsFrustum(-1.0 - x , 1.0 - x, -1.0 - y, 1.0 - y, z, z + w);
}
virtual void operator () (const osg::Camera& camera) const
{
if (!_snapImageOnNextFrame) return;
int x = static_cast<int>(camera.getViewport()->x());
int y = static_cast<int>(camera.getViewport()->y());
unsigned int width = static_cast<unsigned int>(camera.getViewport()->width());
unsigned int height = static_cast<unsigned int>(camera.getViewport()->height());
osg::ref_ptr<osg::Image> image = new osg::Image;
image->readPixels(x,y,width,height,
GL_RGB,GL_UNSIGNED_BYTE);
if (osgDB::writeImageFile(*image,_filename))
{
osg::notify(osg::NOTICE) << "Saved screen image to `"<<_filename<<"`"<< std::endl;
}
_snapImageOnNextFrame = false;
}
virtual void operator () (const osg::Camera& camera) const
{
if (!_snapImageOnNextFrame) return;
int x,y,width,height;
x = camera.getViewport()->x();
y = camera.getViewport()->y();
width = camera.getViewport()->width();
height = camera.getViewport()->height();
osg::ref_ptr<osg::Image> image = new osg::Image;
image->readPixels(x,y,width,height,GL_RGB,GL_UNSIGNED_BYTE);
if (osgDB::writeImageFile(*image,_filename))
{
std::cout << "Saved screen image to `"<<_filename<<"`"<< std::endl;
}
_snapImageOnNextFrame = false;
}
void daeWriter::apply( osg::Camera &node )
{
debugPrint( node );
updateCurrentDaeNode();
domInstance_camera *ic = daeSafeCast< domInstance_camera >( currentNode->add( COLLADA_ELEMENT_INSTANCE_CAMERA ) );
std::string name = node.getName();
if ( name.empty() )
{
name = uniquify( "camera" );
}
std::string url = "#" + name;
ic->setUrl( url.c_str() );
if ( lib_cameras == NULL )
{
lib_cameras = daeSafeCast< domLibrary_cameras >( dom->add( COLLADA_ELEMENT_LIBRARY_CAMERAS ) );
}
domCamera *cam = daeSafeCast< domCamera >( lib_cameras->add( COLLADA_ELEMENT_CAMERA ) );
cam->setId( name.c_str() );
traverse( node );
}
void ScreenMVCullVisitor::apply(osg::Camera& camera)
{
//std::cerr << "MVCV camera" << std::endl;
// push the node's state.
StateSet* node_state = camera.getStateSet();
if(node_state)
pushStateSet(node_state);
//#define DEBUG_CULLSETTINGS
#ifdef DEBUG_CULLSETTINGS
if (osg::isNotifyEnabled(osg::NOTICE))
{
notify(osg::NOTICE)<<std::endl<<std::endl<<"CullVisitor, before : ";
write(osg::notify(osg::NOTICE));
}
#endif
// Save current cull settings
CullSettings saved_cull_settings(*this);
#ifdef DEBUG_CULLSETTINGS
if (osg::isNotifyEnabled(osg::NOTICE))
{
osg::notify(osg::NOTICE)<<"CullVisitor, saved_cull_settings : ";
saved_cull_settings.write(osg::notify(osg::NOTICE));
}
#endif
#if 1
// set cull settings from this Camera
setCullSettings(camera);
#ifdef DEBUG_CULLSETTINGS
osg::notify(osg::NOTICE)<<"CullVisitor, after setCullSettings(camera) : ";
write(osg::notify(osg::NOTICE));
#endif
// inherit the settings from above
inheritCullSettings(saved_cull_settings,camera.getInheritanceMask());
#ifdef DEBUG_CULLSETTINGS
osg::notify(osg::NOTICE)<<"CullVisitor, after inheritCullSettings(saved_cull_settings,"<<camera.getInheritanceMask()<<") : ";
write(osg::notify(osg::NOTICE));
#endif
#else
// activate all active cull settings from this Camera
inheritCullSettings(camera);
#endif
// set the cull mask.
unsigned int savedTraversalMask = getTraversalMask();
bool mustSetCullMask = (camera.getInheritanceMask()
& osg::CullSettings::CULL_MASK) == 0;
if(mustSetCullMask)
setTraversalMask(camera.getCullMask());
RefMatrix& originalModelView = *getModelViewMatrix();
osg::RefMatrix* projection = 0;
osg::RefMatrix* modelview = 0;
if(camera.getReferenceFrame() == osg::Transform::RELATIVE_RF)
{
if(camera.getTransformOrder() == osg::Camera::POST_MULTIPLY)
{
projection = createOrReuseMatrix(
*getProjectionMatrix() * camera.getProjectionMatrix());
modelview = createOrReuseMatrix(
*getModelViewMatrix() * camera.getViewMatrix());
}
else // pre multiply
{
projection = createOrReuseMatrix(
camera.getProjectionMatrix() * (*getProjectionMatrix()));
modelview = createOrReuseMatrix(
camera.getViewMatrix() * (*getModelViewMatrix()));
}
}
else
{
// an absolute reference frame
projection = createOrReuseMatrix(camera.getProjectionMatrix());
modelview = createOrReuseMatrix(camera.getViewMatrix());
}
if(camera.getViewport())
pushViewport(camera.getViewport());
// record previous near and far values.
float previous_znear = _computed_znear;
float previous_zfar = _computed_zfar;
// take a copy of the current near plane candidates
DistanceMatrixDrawableMap previousNearPlaneCandidateMap;
previousNearPlaneCandidateMap.swap(_nearPlaneCandidateMap);
_computed_znear = FLT_MAX;
_computed_zfar = -FLT_MAX;
pushProjectionMatrix(projection);
pushModelViewMatrix(modelview,camera.getReferenceFrame());
if(camera.getRenderOrder() == osg::Camera::NESTED_RENDER)
{
handle_cull_callbacks_and_traverse(camera);
}
else
{
// set up lighting.
// currently ignore lights in the scene graph itself..
// will do later.
osgUtil::RenderStage* previous_stage =
getCurrentRenderBin()->getStage();
// unsigned int contextID = getState() ? getState()->getContextID() : 0;
// use render to texture stage.
// create the render to texture stage.
osg::ref_ptr<osgUtil::RenderStageCache> rsCache =
dynamic_cast<osgUtil::RenderStageCache*>(camera.getRenderingCache());
if(!rsCache)
{
rsCache = new osgUtil::RenderStageCache;
camera.setRenderingCache(rsCache.get());
}
osg::ref_ptr < osgUtil::RenderStage > rtts = rsCache->getRenderStage(
this);
if(!rtts)
{
OpenThreads::ScopedLock < OpenThreads::Mutex
> lock(*(camera.getDataChangeMutex()));
rtts = new osgUtil::RenderStage;
rsCache->setRenderStage(this,rtts.get());
rtts->setCamera(&camera);
if(camera.getInheritanceMask() & DRAW_BUFFER)
{
// inherit draw buffer from above.
rtts->setDrawBuffer(previous_stage->getDrawBuffer(),
previous_stage->getDrawBufferApplyMask());
}
else
{
rtts->setDrawBuffer(camera.getDrawBuffer());
}
if(camera.getInheritanceMask() & READ_BUFFER)
{
// inherit read buffer from above.
rtts->setReadBuffer(previous_stage->getReadBuffer(),
previous_stage->getReadBufferApplyMask());
}
else
{
rtts->setReadBuffer(camera.getReadBuffer());
}
}
else
{
// reusing render to texture stage, so need to reset it to empty it from previous frames contents.
rtts->reset();
}
// set up clera masks/values
rtts->setClearDepth(camera.getClearDepth());
rtts->setClearAccum(camera.getClearAccum());
rtts->setClearStencil(camera.getClearStencil());
rtts->setClearMask(camera.getClearMask());
// set up the background color and clear mask.
if(camera.getInheritanceMask() & CLEAR_COLOR)
{
rtts->setClearColor(previous_stage->getClearColor());
}
else
{
rtts->setClearColor(camera.getClearColor());
}
if(camera.getInheritanceMask() & CLEAR_MASK)
{
rtts->setClearMask(previous_stage->getClearMask());
}
else
{
rtts->setClearMask(camera.getClearMask());
}
// set the color mask.
osg::ColorMask* colorMask =
camera.getColorMask() != 0 ?
camera.getColorMask() : previous_stage->getColorMask();
rtts->setColorMask(colorMask);
// set up the viewport.
osg::Viewport* viewport =
camera.getViewport() != 0 ?
camera.getViewport() : previous_stage->getViewport();
rtts->setViewport(viewport);
// set up to charge the same PositionalStateContainer is the parent previous stage.
osg::Matrix inheritedMVtolocalMV;
inheritedMVtolocalMV.invert(originalModelView);
inheritedMVtolocalMV.postMult(*getModelViewMatrix());
rtts->setInheritedPositionalStateContainerMatrix(inheritedMVtolocalMV);
rtts->setInheritedPositionalStateContainer(
previous_stage->getPositionalStateContainer());
// record the render bin, to be restored after creation
// of the render to text
osgUtil::RenderBin* previousRenderBin = getCurrentRenderBin();
// set the current renderbin to be the newly created stage.
setCurrentRenderBin(rtts.get());
// traverse the subgraph
{
handle_cull_callbacks_and_traverse(camera);
}
// restore the previous renderbin.
setCurrentRenderBin(previousRenderBin);
if(rtts->getStateGraphList().size() == 0
&& rtts->getRenderBinList().size() == 0)
{
// getting to this point means that all the subgraph has been
// culled by small feature culling or is beyond LOD ranges.
}
// and the render to texture stage to the current stages
// dependancy list.
switch(camera.getRenderOrder())
{
case osg::Camera::PRE_RENDER:
getCurrentRenderBin()->getStage()->addPreRenderStage(rtts.get(),
camera.getRenderOrderNum());
break;
default:
getCurrentRenderBin()->getStage()->addPostRenderStage(
rtts.get(),camera.getRenderOrderNum());
break;
}
}
// restore the previous model view matrix.
popModelViewMatrix();
// restore the previous model view matrix.
popProjectionMatrix();
// restore the original near and far values
_computed_znear = previous_znear;
_computed_zfar = previous_zfar;
// swap back the near plane candidates
previousNearPlaneCandidateMap.swap(_nearPlaneCandidateMap);
if(camera.getViewport())
popViewport();
// restore the previous traversal mask settings
if(mustSetCullMask)
setTraversalMask(savedTraversalMask);
// restore the previous cull settings
setCullSettings(saved_cull_settings);
// pop the node's state off the render graph stack.
if(node_state)
popStateSet();
}
virtual void operator()(const osg::Camera& cam) const
{
SDCars * cars = (SDCars*)getCars();
osg::Matrixf mat = cam.getViewMatrix();
cars->updateShadingParameters(mat);
}
void PickVisitor::apply(osg::Camera& camera)
{
if (!camera.isRenderToTextureCamera())
{
if (camera.getReferenceFrame()==osg::Camera::RELATIVE_RF)
{
if (camera.getTransformOrder()==osg::Camera::POST_MULTIPLY)
{
runNestedPickVisitor( camera,
camera.getViewport() ? camera.getViewport() : _lastViewport.get(),
_lastProjectionMatrix * camera.getProjectionMatrix(),
_lastViewMatrix * camera.getViewMatrix(),
_mx, _my );
}
else // PRE_MULTIPLY
{
runNestedPickVisitor( camera,
camera.getViewport() ? camera.getViewport() : _lastViewport.get(),
camera.getProjectionMatrix() * _lastProjectionMatrix,
camera.getViewMatrix() * _lastViewMatrix,
_mx, _my );
}
}
else
{
runNestedPickVisitor( camera,
camera.getViewport() ? camera.getViewport() : _lastViewport.get(),
camera.getProjectionMatrix(),
camera.getViewMatrix(),
_mx, _my );
}
}
}
