100 lines
3 KiB
C
100 lines
3 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file cullTraverserData.h
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* @author drose
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* @date 2002-03-06
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*/
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#ifndef CULLTRAVERSERDATA_H
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#define CULLTRAVERSERDATA_H
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#include "pandabase.h"
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#include "cullPlanes.h"
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#include "workingNodePath.h"
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#include "renderState.h"
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#include "transformState.h"
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#include "geometricBoundingVolume.h"
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#include "pointerTo.h"
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#include "drawMask.h"
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#include "pvector.h"
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class PandaNode;
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class CullTraverser;
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/**
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* This collects together the pieces of data that are accumulated for each
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* node while walking the scene graph during the cull traversal.
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*
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* Having this as a separate object simplifies the parameter list to
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* CullTraverser::r_traverse(), as well as to other functions like
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* PandaNode::cull_callback(). It also makes it easier to add cull
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* parameters, and provides a place to abstract out some of the cull behavior
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* (like view-frustum culling).
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*/
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class EXPCL_PANDA_PGRAPH CullTraverserData {
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public:
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INLINE CullTraverserData(const NodePath &start,
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const TransformState *net_transform,
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const RenderState *state,
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GeometricBoundingVolume *view_frustum,
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Thread *current_thread);
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INLINE CullTraverserData(const CullTraverserData &parent,
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PandaNode *child);
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PUBLISHED:
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INLINE PandaNode *node() const;
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public:
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INLINE PandaNodePipelineReader *node_reader();
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INLINE const PandaNodePipelineReader *node_reader() const;
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INLINE NodePath get_node_path() const;
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PUBLISHED:
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INLINE CPT(TransformState) get_modelview_transform(const CullTraverser *trav) const;
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INLINE CPT(TransformState) get_internal_transform(const CullTraverser *trav) const;
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INLINE const TransformState *get_net_transform(const CullTraverser *trav) const;
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INLINE bool is_in_view(const DrawMask &camera_mask);
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INLINE bool is_this_node_hidden(const DrawMask &camera_mask) const;
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void apply_transform_and_state(CullTraverser *trav);
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void apply_transform(const TransformState *node_transform);
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MAKE_PROPERTY(node_path, get_node_path);
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private:
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// We store a chain leading all the way to the root, so that we can compose
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// a NodePath. We may be able to eliminate this requirement in the future.
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const CullTraverserData *_next;
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NodePathComponent *_start;
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public:
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PandaNodePipelineReader _node_reader;
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CPT(TransformState) _net_transform;
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CPT(RenderState) _state;
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PT(GeometricBoundingVolume) _view_frustum;
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CPT(CullPlanes) _cull_planes;
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DrawMask _draw_mask;
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int _portal_depth;
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private:
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PT(NodePathComponent) r_get_node_path() const;
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bool is_in_view_impl();
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static const RenderState *get_fake_view_frustum_cull_state();
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};
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/* okcircular */
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#include "cullTraverser.h"
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#include "cullTraverserData.I"
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#endif
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