The DtRenderer owns the component systems that draw. This class is a group node which serves as a node in the OSG scenegraph that will allow the component systems to cull and draw.

There is only one of these nodes created by DtOsgRenderer and it is connected to the OSG scenegraph near the top of the graph.

When it's time to cull, this node will provide camera data to each system so that each system can collect items to be rendered.

When it's time to render, this node will provide camera data to each system so that each system can render the items that were visible during cull. It also provides backing GPU buffers to systems.

For example, a system's staging buffer(s) will be transfered to a backing GPU buffer when the staging data changes, and then finally submitted to opengl. A backing GPU buffer(s) will be created for each unique system.

This DtOsgComponentSystemNode has drawables underneath it in the osg scenegraph. Each drawable represents a render state and a specific point in the osg scenegraph. Currently only 1 drawable is required and that drawable is for the alpha-to-coverage draw bin. If more drawables are required in the future, then each drawable should maintain a list of systems that use it, or the system itself should define which draw bins it wants to use.

Inheritance diagram for makVrv::DtOsgComponentSystemNode:

[legend]

Public Member Functions
	DtOsgComponentSystemNode (DtDe &de)

	DtOsgComponentSystemNode (const DtOsgComponentSystemNode &orig, const osg::CopyOp &opr)

virtual	~DtOsgComponentSystemNode ()

	DtOsgComponentSystemNode ()=delete

	DtOsgComponentSystemNode (const DtOsgComponentSystemNode &other)=delete

DtOsgComponentSystemNode &	operator= (const DtOsgComponentSystemNode &other)=delete

virtual void	releaseGLObjects (osg::State *state=0) const override

virtual osg::Object *	clone (const osg::CopyOp &copyop) const

virtual osg::Object *	cloneType () const

virtual void	deleteGeode ()

virtual void	drawObjects (osg::RenderInfo &renderInfo, const DtOsgComponentSystemDrawable &drawable)

Protected Member Functions
virtual void	slot_reloadShaders ()

virtual void	traverse (osg::NodeVisitor &nv)

virtual bool	cullObjects (osg::Camera *cam, const DtModelSetId modelSetId)

virtual void	restoreOsgState (osg::State *state)

virtual bool	drawGeom3dLinesSystem (osg::RenderInfo &renderInfo, osg::Camera *camera, bool skyRendering)

virtual bool	drawGeom3dSpheresSystem (osg::RenderInfo &renderInfo, osg::Camera *camera, bool skyRendering)

Protected Attributes
DtDe &	myDe

DtSignalConnectionManager	myConnections

osg::ref_ptr< osg::Geode >	myGeode

osg::ref_ptr< osg::Drawable >	myDrawable

Frustum_64	myFrustum

Dt3dLinesCameraRenderer *	myGeom3dLinesCameraRenderer

Dt3dSpheresCameraRenderer *	myGeom3dSpheresCameraRenderer

Private Member Functions
osg::Node *	getChildNodeByName (osg::Group parent, const char name)

void	connectSignals ()

Constructor & Destructor Documentation

makVrv::DtOsgComponentSystemNode::DtOsgComponentSystemNode ( DtDe & de )

CTOR.

makVrv::DtOsgComponentSystemNode::DtOsgComponentSystemNode	(	const DtOsgComponentSystemNode &	orig,
		const osg::CopyOp &	opr
	)

Copy constructor needed because it is derived from osg::Group.

virtual makVrv::DtOsgComponentSystemNode::~DtOsgComponentSystemNode ( )

virtual

DTOR.

makVrv::DtOsgComponentSystemNode::DtOsgComponentSystemNode ( )

delete

Default Constructor not implemented.

makVrv::DtOsgComponentSystemNode::DtOsgComponentSystemNode ( const DtOsgComponentSystemNode & other )

delete

Copy Constructor not implemented - Copy not allowed.

Member Function Documentation

DtOsgComponentSystemNode& makVrv::DtOsgComponentSystemNode::operator= ( const DtOsgComponentSystemNode & other )

delete

Assignment Operator not implemented - Assignment not allowed.

virtual void makVrv::DtOsgComponentSystemNode::releaseGLObjects ( osg::State * state = 0 ) const

overridevirtual

release gl for fog patch and fog effect

virtual osg::Object* makVrv::DtOsgComponentSystemNode::clone ( const osg::CopyOp & copyop ) const

inlinevirtual

required functions for derriving from osg::Group

virtual osg::Object* makVrv::DtOsgComponentSystemNode::cloneType ( ) const

inlinevirtual

virtual void makVrv::DtOsgComponentSystemNode::deleteGeode ( )

virtual

Tell the group to delete its specific children.

virtual void makVrv::DtOsgComponentSystemNode::drawObjects	(	osg::RenderInfo &	renderInfo,
		const DtOsgComponentSystemDrawable &	drawable
	)

virtual

Draw all objects for the given drawable. The drawable represents a render state and a specific point in the osg scenegraph. For example, there is a drawable for systems that need to be drawn in the alpha-to-coverage bin. This is called from the drawable itself during draw.

virtual void makVrv::DtOsgComponentSystemNode::slot_reloadShaders ( )

protectedvirtual

Signal handler to reload the shaders.

virtual void makVrv::DtOsgComponentSystemNode::traverse ( osg::NodeVisitor & nv )

protectedvirtual

Traverse.

virtual bool makVrv::DtOsgComponentSystemNode::cullObjects	(	osg::Camera *	cam,
		const DtModelSetId	modelSetId
	)

protectedvirtual

Cull objects for current camera. Returns true is there is something to draw. Returns false if all object were culled.

Parameters

cam	The current camera.

virtual void makVrv::DtOsgComponentSystemNode::restoreOsgState ( osg::State * state )

protectedvirtual

Called after all objects have been drawn to restore the osg state and/or flag osg state objects dirty so they can be applied later.

virtual bool makVrv::DtOsgComponentSystemNode::drawGeom3dLinesSystem	(	osg::RenderInfo &	renderInfo,
		osg::Camera *	camera,
		bool	skyRendering
	)

protectedvirtual

Helper for drawObjects to specifically draw the Geom3dLinesSystem. returns true if objects were drawn/processed.

virtual bool makVrv::DtOsgComponentSystemNode::drawGeom3dSpheresSystem	(	osg::RenderInfo &	renderInfo,
		osg::Camera *	camera,
		bool	skyRendering
	)

protectedvirtual

Helper for drawObjects to specifically draw the Geom3dSpheresSystem. returns true if objects were drawn/processed.

osg::Node* makVrv::DtOsgComponentSystemNode::getChildNodeByName	(	osg::Group *	parent,
		const char *	name
	)

private

This is private and non-virtual because it's used in the constructor. This method returns the first child node that matches the given name.

void makVrv::DtOsgComponentSystemNode::connectSignals ( )

private

This is private and non-virtual because it's used in the constructor.

Connects all the signals.

Member Data Documentation

DtDe& makVrv::DtOsgComponentSystemNode::myDe

protected

DtSignalConnectionManager makVrv::DtOsgComponentSystemNode::myConnections

protected

osg::ref_ptr<osg::Geode> makVrv::DtOsgComponentSystemNode::myGeode

protected

osg::ref_ptr<osg::Drawable> makVrv::DtOsgComponentSystemNode::myDrawable

protected

Frustum_64 makVrv::DtOsgComponentSystemNode::myFrustum

protected

Dt3dLinesCameraRenderer* makVrv::DtOsgComponentSystemNode::myGeom3dLinesCameraRenderer

protected

Dt3dSpheresCameraRenderer* makVrv::DtOsgComponentSystemNode::myGeom3dSpheresCameraRenderer

protected

The documentation for this class was generated from the following file:

/data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-2-branch/include/vrvOsg/DtOsgComponentSystemNode.h

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation