Enables user-specific evaluations of the scene representation. More...
#include <iscene_visitor.h>
Public Types | |
| enum | Scene_evaluation_mode |
| The scene representation can be traversed depth-first order only today. More... | |
Public Member Functions | |
| virtual void | evaluate (mi::neuraylib::Tag scene_element, const mi::base::Uuid &uuid, IScene_visitor::Scene_evaluation_mode evaluation_mode, mi::neuraylib::IDice_transaction *transaction)=0 |
| When traversing the scene representation each scene element is visited. More... | |
Enables user-specific evaluations of the scene representation.
The scene visitor applies to the root of the scene and will be passed through the entire scene representation. In this way, the visitor visits all scene elements (e.g., scene groups, attributes and shapes) contained in the scene automatically. When visiting a scene element, the evaluate method is called. Deriving from the visitor enables the implementation of user-specific evaluations of the scene representation. Common use-cases include the logging of the scene representation or determining the path (IScene_path) from the root to some given scene element.
The scene representation can be traversed depth-first order only today.
When traversing in depth-first order, each node is visited twice i.e., in forward or backward directions.
Traversing the scene in breadth-first order is not yet supported.
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pure virtual |
When traversing the scene representation each scene element is visited.
When visiting the scene element, the evaluate method is called by the NVIDIA IndeX library to enable application-side inspections of the scene elements.
| scene_element | The tag of the visited scene element. |
| uuid | The unique identifier that represents the type of the visited class. |
| evaluation_mode | The scene representation can be traversed depth-first order and a node is evaluated twice in, i.e., in forward or backward directions. The method can handle the evaluation based on either one appropriately. |
| transaction | The transaction used when traversing the scene. |
