147 lines
4.4 KiB
C++
147 lines
4.4 KiB
C++
/**
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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 cullTraverser.h
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* @author drose
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* @date 2002-02-23
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*/
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#ifndef CULLTRAVERSER_H
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#define CULLTRAVERSER_H
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#include "pandabase.h"
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#include "geom.h"
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#include "sceneSetup.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 "camera.h"
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#include "drawMask.h"
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#include "typedReferenceCount.h"
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#include "pStatCollector.h"
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#include "fogAttrib.h"
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class GraphicsStateGuardian;
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class PandaNode;
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class CullHandler;
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class CullableObject;
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class CullTraverserData;
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class PortalClipper;
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class NodePath;
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/**
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* This object performs a depth-first traversal of the scene graph, with
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* optional view-frustum culling, collecting CullState and searching for
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* GeomNodes. Each renderable Geom encountered is passed along with its
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* associated RenderState to the CullHandler object.
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*/
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class EXPCL_PANDA_PGRAPH CullTraverser : public TypedReferenceCount {
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PUBLISHED:
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CullTraverser();
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CullTraverser(const CullTraverser ©);
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INLINE GraphicsStateGuardianBase *get_gsg() const;
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INLINE Thread *get_current_thread() const;
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virtual void set_scene(SceneSetup *scene_setup,
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GraphicsStateGuardianBase *gsg,
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bool dr_incomplete_render);
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INLINE SceneSetup *get_scene() const;
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INLINE bool has_tag_state_key() const;
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INLINE const std::string &get_tag_state_key() const;
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INLINE void set_camera_mask(const DrawMask &camera_mask);
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INLINE const DrawMask &get_camera_mask() const;
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INLINE const TransformState *get_camera_transform() const;
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INLINE const TransformState *get_world_transform() const;
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INLINE const RenderState *get_initial_state() const;
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INLINE bool get_depth_offset_decals() const;
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INLINE void set_view_frustum(GeometricBoundingVolume *view_frustum);
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INLINE GeometricBoundingVolume *get_view_frustum() const;
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INLINE void set_cull_handler(CullHandler *cull_handler);
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INLINE CullHandler *get_cull_handler() const;
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INLINE void set_portal_clipper(PortalClipper *portal_clipper);
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INLINE PortalClipper *get_portal_clipper() const;
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INLINE bool get_effective_incomplete_render() const;
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void traverse(const NodePath &root);
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void traverse(CullTraverserData &data);
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virtual void traverse_below(CullTraverserData &data);
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virtual void end_traverse();
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INLINE static void flush_level();
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void draw_bounding_volume(const BoundingVolume *vol,
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const TransformState *internal_transform) const;
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protected:
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INLINE void do_traverse(CullTraverserData &data);
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virtual bool is_in_view(CullTraverserData &data);
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public:
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// Statistics
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static PStatCollector _nodes_pcollector;
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static PStatCollector _geom_nodes_pcollector;
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static PStatCollector _geoms_pcollector;
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static PStatCollector _geoms_occluded_pcollector;
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private:
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void show_bounds(CullTraverserData &data, bool tight);
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static PT(Geom) make_bounds_viz(const BoundingVolume *vol);
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PT(Geom) make_tight_bounds_viz(PandaNode *node) const;
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static LVertex compute_point(const BoundingSphere *sphere,
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PN_stdfloat latitude, PN_stdfloat longitude);
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static CPT(RenderState) get_bounds_outer_viz_state();
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static CPT(RenderState) get_bounds_inner_viz_state();
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static CPT(RenderState) get_depth_offset_state();
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GraphicsStateGuardianBase *_gsg;
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Thread *_current_thread;
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PT(SceneSetup) _scene_setup;
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DrawMask _camera_mask;
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bool _has_tag_state_key;
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std::string _tag_state_key;
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CPT(RenderState) _initial_state;
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PT(GeometricBoundingVolume) _view_frustum;
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CullHandler *_cull_handler;
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PortalClipper *_portal_clipper;
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bool _effective_incomplete_render;
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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TypedReferenceCount::init_type();
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register_type(_type_handle, "CullTraverser",
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TypedReferenceCount::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#include "cullTraverserData.h"
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#include "cullTraverser.I"
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#endif
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