This collects together the pieces of data that are accumulated for each node while walking the scene graph during the cull traversal. More...
#include "cullTraverserData.h"
Public Member Functions | |
| CullTraverserData (const CullTraverserData &parent, PandaNode *child) | |
| This constructor creates a CullTraverserData object that reflects the next node down in the traversal. | |
| CullTraverserData (const NodePath &start, const TransformState *net_transform, const RenderState *state, GeometricBoundingVolume *view_frustum, Thread *current_thread) | |
| void | apply_transform (const TransformState *node_transform) |
| Applies the indicated transform changes onto the current data. | |
| void | apply_transform_and_state (CullTraverser *trav) |
| Applies the transform and state from the current node onto the current data. | |
| ConstPointerTo< TransformState > | get_internal_transform (const CullTraverser *trav) const |
| ConstPointerTo< TransformState > | get_modelview_transform (const CullTraverser *trav) const |
| const TransformState * | get_net_transform (const CullTraverser *trav) const |
| NodePath | get_node_path () const |
| bool | is_in_view (const DrawMask &camera_mask) |
| bool | is_this_node_hidden (const DrawMask &camera_mask) const |
| Returns true if this particular node is hidden, even though we might be traversing past this node to find a child node that has had show_through() called for it. | |
| PandaNode * | node () const |
| Returns the node traversed to so far. | |
| PandaNodePipelineReader * | node_reader () |
| Returns the PipelineReader for the node traversed to so far. | |
| const PandaNodePipelineReader * | node_reader () const |
| Returns the PipelineReader for the node traversed to so far. | |
Public Attributes | |
| ConstPointerTo< CullPlanes > | _cull_planes |
| DrawMask | _draw_mask |
| ConstPointerTo< TransformState > | _net_transform |
| PandaNodePipelineReader | _node_reader |
| int | _portal_depth |
| ConstPointerTo< RenderState > | _state |
| PointerTo< GeometricBoundingVolume > | _view_frustum |
| get_node_path | |
| Constructs and returns an actual NodePath that represents the same path we have just traversed. | |
Detailed Description
This collects together the pieces of data that are accumulated for each node while walking the scene graph during the cull traversal.
Having this as a separate object simplifies the parameter list to CullTraverser::r_traverse(), as well as to other functions like PandaNode::cull_callback(). It also makes it easier to add cull parameters, and provides a place to abstract out some of the cull behavior (like view-frustum culling).
Definition at line 40 of file cullTraverserData.h.
Constructor & Destructor Documentation
◆ CullTraverserData() [1/2]
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inline |
Definition at line 17 of file cullTraverserData.I.
◆ CullTraverserData() [2/2]
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inline |
This constructor creates a CullTraverserData object that reflects the next node down in the traversal.
Definition at line 42 of file cullTraverserData.I.
Member Function Documentation
◆ apply_transform()
| void CullTraverserData::apply_transform | ( | const TransformState * | node_transform | ) |
Applies the indicated transform changes onto the current data.
Definition at line 77 of file cullTraverserData.cxx.
References TransformState::is_identity(), TransformState::is_singular(), and CullPlanes::make_empty().
Referenced by apply_transform_and_state().
◆ apply_transform_and_state()
| void CullTraverserData::apply_transform_and_state | ( | CullTraverser * | trav | ) |
Applies the transform and state from the current node onto the current data.
This also evaluates billboards, etc.
Definition at line 34 of file cullTraverserData.cxx.
References apply_transform(), RenderEffects::cull_callback(), SceneSetup::get_camera_node(), RenderEffects::get_effect(), CullTraverser::get_scene(), Camera::get_tag_state, CullTraverser::get_tag_state_key(), RenderEffects::has_cull_callback(), and CullTraverser::has_tag_state_key().
◆ is_this_node_hidden()
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inline |
Returns true if this particular node is hidden, even though we might be traversing past this node to find a child node that has had show_through() called for it.
If this returns true, the node should not be rendered.
Definition at line 159 of file cullTraverserData.I.
◆ node()
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inline |
Returns the node traversed to so far.
Definition at line 65 of file cullTraverserData.I.
◆ node_reader() [1/2]
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inline |
Returns the PipelineReader for the node traversed to so far.
Definition at line 73 of file cullTraverserData.I.
◆ node_reader() [2/2]
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inline |
Returns the PipelineReader for the node traversed to so far.
Definition at line 81 of file cullTraverserData.I.
Member Data Documentation
◆ _cull_planes
| ConstPointerTo< CullPlanes > CullTraverserData::_cull_planes |
Definition at line 83 of file cullTraverserData.h.
◆ _draw_mask
| DrawMask CullTraverserData::_draw_mask |
Definition at line 84 of file cullTraverserData.h.
◆ _net_transform
| ConstPointerTo< TransformState > CullTraverserData::_net_transform |
Definition at line 80 of file cullTraverserData.h.
◆ _node_reader
| PandaNodePipelineReader CullTraverserData::_node_reader |
Definition at line 79 of file cullTraverserData.h.
◆ _portal_depth
| int CullTraverserData::_portal_depth |
Definition at line 85 of file cullTraverserData.h.
◆ _state
| ConstPointerTo< RenderState > CullTraverserData::_state |
Definition at line 81 of file cullTraverserData.h.
◆ _view_frustum
| PointerTo< GeometricBoundingVolume > CullTraverserData::_view_frustum |
Definition at line 82 of file cullTraverserData.h.
◆ get_node_path
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inline |
Constructs and returns an actual NodePath that represents the same path we have just traversed.
Definition at line 70 of file cullTraverserData.h.
The documentation for this class was generated from the following files:
- panda/src/pgraph/cullTraverserData.h
- panda/src/pgraph/cullTraverserData.cxx
- panda/src/pgraph/cullTraverserData.I
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