class SG_EXPORT osg::ClearNode

ClearNode is a Group node which controls the clearing of the color and depth buffers at the start of each frame.

Inheritance:

Public Methods

ClearNode()

ClearNode(const ClearNode& es, const CopyOp& copyop=CopyOp::SHALLOW_COPY)

META_Node(osg, ClearNode)

inline void setRequiresClear(bool requiresClear)

Sets the flag which control whether a glClear is required at the beginning of each frame.

inline bool getRequiresClear() const

Gets the flag which control whether a glClear is required at the beginning of each frame.

inline void setClearColor(const Vec4& color)

Sets the clear color.

inline const Vec4& getClearColor() const

Returns the clear color.

Protected Fields

bool _requiresClear

Vec4 _clearColor

Protected Methods

virtual ~ClearNode()

Inherited from Group:

Public Methods

virtual Group* asGroup()

virtual const Group* asGroup() const

virtual void traverse(NodeVisitor& nv)

virtual bool addChild( Node* child )

virtual bool removeChild( Node* child )

virtual bool replaceChild( Node* origChild, Node* newChild )

inline unsigned int getNumChildren() const

inline Node* getChild( unsigned int i )

inline const Node* getChild( unsigned int i ) const

inline bool containsNode( const Node* node ) const

inline ChildList::iterator findNode( const Node* node )

inline ChildList::const_iterator findNode( const Node* node ) const

inline unsigned int findChildNo( const Node* node ) const

Public Members

typedef std::vector<ref_ptr<Node> > ChildList

Protected Fields

ChildList _children

Protected Methods

virtual bool computeBound() const

Documentation

ClearNode is a Group node which controls the clearing of the color and depth buffers at the start of each frame. The earth sky by default is empty and simply holds the clear color of the background. However, if the uses wants to add their own clearing of the color and depth buffers then the children can be added, and the background clear turned off. The ClearNode by default has StateSet attached to it which sets the default ClearNode bin number to -1, so that all drawables below it are placed in a separate bin from the rest of the scene graph, and are rendered prior to standard opaque and transparent drawables.

ClearNode()

ClearNode(const ClearNode& es, const CopyOp& copyop=CopyOp::SHALLOW_COPY)

META_Node(osg, ClearNode)

inline void setRequiresClear(bool requiresClear)

Sets the flag which control whether a glClear is required at the beginning of each frame.

inline bool getRequiresClear() const

Gets the flag which control whether a glClear is required at the beginning of each frame.

inline void setClearColor(const Vec4& color)

Sets the clear color.

inline const Vec4& getClearColor() const

Returns the clear color.

virtual ~ClearNode()

bool _requiresClear

Vec4 _clearColor

This class has no child classes.

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