128 lines
3.9 KiB
C++
128 lines
3.9 KiB
C++
// Filename: cullTraverser.h
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// Created by: drose (23Feb02)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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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 "drawMask.h"
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#include "typedObject.h"
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#include "pStatCollector.h"
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class PandaNode;
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class CullHandler;
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class CullTraverserData;
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class CullableObject;
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class NodePath;
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////////////////////////////////////////////////////////////////////
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// Class : CullTraverser
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// Description : This object performs a depth-first traversal of the
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// scene graph, with optional view-frustum culling,
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// collecting CullState and searching for GeomNodes.
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// Each renderable Geom encountered is passed along with
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// its associated RenderState to the CullHandler object.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA CullTraverser : public TypedObject {
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public:
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CullTraverser();
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CullTraverser(const CullTraverser ©);
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INLINE void set_scene(SceneSetup *scene_setup);
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INLINE SceneSetup *get_scene() 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_render_transform() const;
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INLINE void set_initial_state(const RenderState *initial_state);
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INLINE const RenderState *get_initial_state() const;
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INLINE void set_depth_offset_decals(bool flag);
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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_guard_band(GeometricBoundingVolume *guard_band);
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INLINE GeometricBoundingVolume *get_guard_band() 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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void traverse(const NodePath &root);
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void traverse(CullTraverserData &data);
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void traverse_below(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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private:
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void show_bounds(CullTraverserData &data);
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PT(Geom) make_bounds_viz(const BoundingVolume &vol);
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CPT(RenderState) get_bounds_outer_viz_state();
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CPT(RenderState) get_bounds_inner_viz_state();
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CPT(RenderState) get_depth_offset_state();
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void start_decal(const CullTraverserData &data);
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CullableObject *r_get_decals(CullTraverserData &data,
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CullableObject *decals);
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PT(SceneSetup) _scene_setup;
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DrawMask _camera_mask;
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CPT(RenderState) _initial_state;
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bool _depth_offset_decals;
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PT(GeometricBoundingVolume) _view_frustum;
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PT(GeometricBoundingVolume) _guard_band;
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CullHandler *_cull_handler;
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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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TypedObject::init_type();
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register_type(_type_handle, "CullTraverser",
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TypedObject::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 "cullTraverser.I"
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#endif
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