112 lines
3.5 KiB
C++
112 lines
3.5 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 occluderNode.h
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* @author jenes
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* @date 2011-03-11
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*/
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#ifndef OCCLUDERNODE_H
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#define OCCLUDERNODE_H
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#include "pandabase.h"
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#include "pandaNode.h"
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#include "nodePath.h"
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#include "pvector.h"
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#include "geom.h"
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#include "texture.h"
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/**
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* A node in the scene graph that can hold an occluder polygon, which must be
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* a rectangle. When the occluder is activated with something like
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* render.set_occluder(), then objects whose bouding volume lies entirely
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* behind the occluder will not be rendered.
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*/
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class EXPCL_PANDA_PGRAPH OccluderNode : public PandaNode {
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PUBLISHED:
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explicit OccluderNode(const std::string &name);
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protected:
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OccluderNode(const OccluderNode ©);
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public:
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virtual ~OccluderNode();
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virtual PandaNode *make_copy() const;
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virtual bool preserve_name() const;
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virtual void xform(const LMatrix4 &mat);
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virtual bool cull_callback(CullTraverser *trav, CullTraverserData &data);
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virtual bool is_renderable() const;
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virtual void output(std::ostream &out) const;
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PUBLISHED:
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INLINE void set_double_sided(bool value);
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INLINE bool is_double_sided();
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INLINE void set_min_coverage(PN_stdfloat value);
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INLINE PN_stdfloat get_min_coverage();
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INLINE void set_vertices(const LPoint3 &v0, const LPoint3 &v1,
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const LPoint3 &v2, const LPoint3 &v3);
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INLINE size_t get_num_vertices() const;
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INLINE const LPoint3 &get_vertex(size_t n) const;
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INLINE void set_vertex(size_t n, const LPoint3 &v);
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MAKE_SEQ(get_vertices, get_num_vertices, get_vertex);
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MAKE_PROPERTY(double_sided, is_double_sided, set_double_sided);
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MAKE_PROPERTY(min_coverage, get_min_coverage, set_min_coverage);
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MAKE_SEQ_PROPERTY(vertices, get_num_vertices, get_vertex, set_vertex);
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protected:
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virtual void compute_internal_bounds(CPT(BoundingVolume) &internal_bounds,
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int &internal_vertices,
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int pipeline_stage,
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Thread *current_thread) const;
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PT(Geom) get_occluder_viz(CullTraverser *trav, CullTraverserData &data);
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CPT(RenderState) get_occluder_viz_state(CullTraverser *trav, CullTraverserData &data);
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CPT(RenderState) get_frame_viz_state(CullTraverser *trav, CullTraverserData &data);
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private:
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bool _double_sided;
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PN_stdfloat _min_coverage;
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typedef pvector<LPoint3> Vertices;
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Vertices _vertices;
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PT(Geom) _occluder_viz, _frame_viz;
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static PT(Texture) _viz_tex;
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public:
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static void register_with_read_factory();
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virtual void write_datagram(BamWriter *manager, Datagram &dg);
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virtual int complete_pointers(TypedWritable **plist, BamReader *manager);
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protected:
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static TypedWritable *make_from_bam(const FactoryParams ¶ms);
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void fillin(DatagramIterator &scan, BamReader *manager);
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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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PandaNode::init_type();
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register_type(_type_handle, "OccluderNode",
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PandaNode::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 "occluderNode.I"
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#endif
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