Open Inventor Release 2024.1.1
 
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SoDistributeAction Class Reference

VSG extension Computes a distribution of the scene graph for use in depth compositing in ScaleViz. More...

#include <Inventor/actions/SoDistributeAction.h>

+ Inheritance diagram for SoDistributeAction:

Public Types

enum  DistributeMethod {
  ROUND_ROBIN ,
  TRIANGLE_COUNT
}
 Algorithms for scene graph distribution. More...
 
- Public Types inherited from SoAction
enum  DistribMode {
  LOCAL_ONLY ,
  CLUSTER_ONLY ,
  ALL
}
 This is used to define the way an action is distributed across a cluster. More...
 
enum  AppliedCode {
  NODE ,
  PATH ,
  PATH_LIST
}
 This enum is used to determine what the action is being applied to. More...
 
enum  PathCode {
  NO_PATH ,
  IN_PATH ,
  BELOW_PATH ,
  OFF_PATH
}
 This enum may be used during traversal of nodes to indicate where the node is with respect to the path being traversed. More...
 

Public Member Functions

virtual SoType getTypeId () const
 Returns the type identifier for this specific instance.
 
 SoDistributeAction ()
 Constructor.
 
void setDistributeMethod (DistributeMethod distribMethod)
 Destructor.
 
DistributeMethod getDistributeMethod ()
 Returns the algorithm used to distribute the scene graph.
 
- Public Member Functions inherited from SoAction
virtual ~SoAction ()
 Destructor.
 
virtual void apply (SoNode *node)
 Initiates an action on the graph defined by a node.
 
virtual void apply (SoPath *path)
 Initiates an action on the graph defined by a path.
 
virtual void apply (const SoPathList &pathList, SbBool obeysRules=FALSE)
 Initiates an action on the graph defined by a list of paths.
 
virtual void clearApplyResult ()
 When applied, an action may reference nodes or create objects (e.g.
 
virtual void invalidateState ()
 Invalidates the current traversal state in the action, forcing it to be recreated when the action is next applied.
 
void stopActionInBranch ()
 This function stops the action in the current Scene Graph branch.
 
SbBool getContinueActionInBranchFlag () const
 This function indicates if the action must stop in the current branch.
 
void resetContinueActionInBranchFlag ()
 This function resets the continue action flag.
 
void useAlternateRep (const SbBool enable)
 Tell the action to use alternate representations during traversal when available.
 
SbBool isUsingAlternateRep () const
 Returns TRUE if current action is using alternate representations.
 
void setSceneManager (SoSceneManager *mgr)
 Set the scene manager associated with this action (if any ).
 
SoSceneManagergetSceneManager () const
 Return the SoSceneManager associated with this action.
 
virtual void forwardTraversal (SoNode *node)
 Traverse a node that is not part of the current scenegraph.
 
virtual void forwardTraversal (SoPath *path)
 Traverse a path that is not part of the current scenegraph.
 
DistribMode getDistribMode () const
 Returns the distribution mode of this action across a cluster (ScaleViz-Cluster only).
 
AppliedCode getWhatAppliedTo () const
 Returns code indicating what action is being applied to.
 
SoNodegetNodeAppliedTo () const
 Returns the node the action is being applied to.
 
SoPathgetPathAppliedTo () const
 Returns the path the action is being applied to.
 
const SoPathListgetPathListAppliedTo () const
 Returns the path list the action is being applied to.
 
const SoPathListgetOriginalPathListAppliedTo () const
 Returns the original path list the action is being applied to.
 
SbBool isLastPathListAppliedTo () const
 Returns TRUE if the current list is the last one from the original.
 
PathCode getPathCode (int &numIndices, const int *&indices)
 Returns path code based on where current node (the node at the end of the current path) lies with respect to the path(s) the action is being applied to.
 
PathCode getPathCodeMI (int &numIndices, const int *&indices, const int *&instanceIndices)
 Extender API: available to programmers who wish to extend the toolkit
 
void traverse (SoNode *node)
 Does traversal of a graph rooted by a node.
 
SbBool hasTerminated () const
 Returns TRUE if the traversal has reached a termination condition.
 
const SoPathgetCurPath ()
 Returns the path accumulated during traversal, i.e., the chain of nodes from the root of the traversed graph to the current node being traversed.
 
SoStategetState () const
 Gets the state from the action.
 
virtual void setUpState ()
 Creates state if it is NULL or it is no longer valid because new elements have been enabled since it was created.
 
void setPipeId (int id)
 Sets pipe identifier in the range [1..N] associated to this render action while running a ScaleViz Multipipe configuration.
 
int getPipeId () const
 Gets pipe identifier in the range [1..N] associated to this render action while running a ScaleViz Multipipe configuration.
 
bool isBeingApplied ()
 Returns TRUE if this action is currently being applied.
 
virtual bool preDelayedTraversal ()
 Method called by SoMultiPassManager before delayed pass traversals.
 
virtual void postDelayedTraversal ()
 Method called by SoMultiPassManager after delayed pass traversals.
 
- Public Member Functions inherited from SoTypedObject
SbBool isOfType (const SoType &type) const
 Returns TRUE if this object is of the type specified in type or is derived from that type.
 
template<typename TypedObjectClass >
SbBool isOfType () const
 Returns TRUE if this object is of the type of class TypedObjectClass or is derived from that class.
 

Static Public Member Functions

static SoType getClassTypeId ()
 Returns the type identifier for this class.
 
- Static Public Member Functions inherited from SoAction
static SoType getClassTypeId ()
 Returns the type identifier for this class.
 
static void nullAction (SoAction *, SoNode *)
 Null action method that can be stored in lookup table when desired.
 
- Static Public Member Functions inherited from SoTypedObject
static SoType getClassTypeId ()
 Returns the type identifier for this class.
 

Detailed Description

VSG extension Computes a distribution of the scene graph for use in depth compositing in ScaleViz.

This class is used to compute a distribution of the scene graph for use in depth compositing in ScaleViz.

In order to simplify the distribution of the scene graph, two different algorithms are supported for the automatic allocation of render unit IDs of each separator in a scene graph:

  • ROUND_ROBIN, which implements a round robin algorithm, does static allocation based on the number of running OIRUs. This algorithm is the fastest way to distribute a scene graph between all running OIRUs, but as it does not take in account the weight of the sub scene graph assigned to each OIRU, it can potentially result in an unbalanced distribution.
  • TRIANGLE_COUNT is a dynamic algorithm that takes in account the weight of each separator, and tries to distribute the scene graph as equally as possible between OIRUs. Compared with the first algorithm, it is more time consuming, but the result is a better balanced scene graph distribution. This is the default.

To specify the desired distribution algorithm, instantiate an SoDistributeAction, specify the the desired algorithm, and apply the action on the scene graph that you want to distribute.

SEE ALSO

SoSeparator, SoDepthComposer

Definition at line 63 of file SoDistributeAction.h.

Member Enumeration Documentation

◆ DistributeMethod

Algorithms for scene graph distribution.

Enumerator
ROUND_ROBIN 
TRIANGLE_COUNT 

Definition at line 71 of file SoDistributeAction.h.

Constructor & Destructor Documentation

◆ SoDistributeAction()

SoDistributeAction::SoDistributeAction ( )

Constructor.

Member Function Documentation

◆ getClassTypeId()

static SoType SoDistributeAction::getClassTypeId ( )
static

Returns the type identifier for this class.


◆ getDistributeMethod()

SoDistributeAction::DistributeMethod SoDistributeAction::getDistributeMethod ( )
inline

Returns the algorithm used to distribute the scene graph.

Definition at line 195 of file SoDistributeAction.h.

◆ getTypeId()

virtual SoType SoDistributeAction::getTypeId ( ) const
virtual

Returns the type identifier for this specific instance.

Implements SoTypedObject.

◆ setDistributeMethod()

void SoDistributeAction::setDistributeMethod ( SoDistributeAction::DistributeMethod  distribMethod)
inline

Destructor.

Specifies the algorithm used to distribute the scene graph.
Default is TRIANGLE_COUNT.

Definition at line 189 of file SoDistributeAction.h.


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