VRS::SceneNode Class Reference
Abstract Base Class for All Types of Scene Graph Nodes. More...
#include <vrs/scenenode.h>
Public Types | |
| enum | State { EvaluationOn = 0x0002, TraversalOn = 0x0004 } |
Public Member Functions | |
| SceneNode () | |
| virtual void | evaluate (Engine *engine) |
| virtual SceneNodeVisitor::TraversalFlag | traverse (SceneNodeVisitor *visitor) |
| virtual Bounds | boundingBox (Engine *engine) const |
| virtual void | install (Engine *engine) |
| virtual void | deinstall (Engine *engine) |
| VRS_SERIALIZABLE_CLASS_ENUM (State) | |
| virtual void | setNodeState (int state) |
| virtual int | getNodeState () const |
| VRS_TYPEINFO (SceneNode, SharedObj) | |
| VRS_SERIALIZABLE_ABSTRACT_CLASS (SceneNode) | |
Detailed Description
Abstract Base Class for All Types of Scene Graph Nodes.Member Enumeration Documentation
Constructor & Destructor Documentation
| VRS::SceneNode::SceneNode | ( | ) |
Member Function Documentation
| virtual void VRS::SceneNode::evaluate | ( | Engine * | engine | ) | [virtual] |
Geometry nodes are parameterized by rendering engines. That is, one scene graph may be traversed by several rendering engines (e.g., an engine for each canvas of a multiview application). Evaluate passes attributes, shapes, and handlers to the rendering engine, and delegates the evaluation to subgraphs.
Reimplemented in VRS::CacheNodeGL, VRS::SceneShapeManagerGL, VRS::CullingSceneThing, VRS::FrameCounter, VRS::LODNode, VRS::SceneAdjuster, VRS::SceneCallback, VRS::SceneConfiguration, VRS::SceneSwitch, VRS::SceneThing, VRS::CurveText, and VRS::TextField.
| virtual SceneNodeVisitor::TraversalFlag VRS::SceneNode::traverse | ( | SceneNodeVisitor * | visitor | ) | [virtual] |
A "visitor" can be sent through a scene graph, e.g., for detecting certain shapes or finding attribute objects etc. The visitor is informed about all shapes, attributes, and scene nodes encountered during a traversal.
Reimplemented in VRS::LODNode, VRS::SceneCallback, VRS::SceneSwitch, and VRS::SceneThing.
Returns the geometry bounding box of the node and all of its subgraphs. The bounding box is expressed in coordinates local to the scene node.
Reimplemented in VRS::CacheNodeGL, VRS::SceneShapeManagerGL, VRS::CullingSceneThing, VRS::LODNode, VRS::SceneAdjuster, VRS::SceneSwitch, VRS::SceneThing, VRS::CurveText, and VRS::TextField.
| virtual void VRS::SceneNode::install | ( | Engine * | engine | ) | [virtual] |
Reimplemented in VRS::SceneCallback, VRS::SceneConfiguration, VRS::SceneSwitch, and VRS::SceneThing.
| virtual void VRS::SceneNode::deinstall | ( | Engine * | engine | ) | [virtual] |
When a new rendering engine gets connected to a geometry graph, an install request is sent to each of the graph's nodes. When an existing rendering engine is going to be destroyed, an uninstall request is sent to each of the graph's nodes.
Reimplemented in VRS::SceneCallback, VRS::SceneConfiguration, VRS::SceneSwitch, and VRS::SceneThing.
| VRS::SceneNode::VRS_SERIALIZABLE_CLASS_ENUM | ( | State | ) |
| virtual void VRS::SceneNode::setNodeState | ( | int | state | ) | [virtual] |
| virtual int VRS::SceneNode::getNodeState | ( | ) | const [virtual] |
A scene node can be disabled for evaluation and traversal. The node state contains these flags.
| VRS::SceneNode::VRS_SERIALIZABLE_ABSTRACT_CLASS | ( | SceneNode | ) |
The documentation for this class was generated from the following file: