113 lines
3.5 KiB
C
113 lines
3.5 KiB
C
|
/**
|
||
|
|
* PANDA 3D SOFTWARE
|
||
|
|
* Copyright (c) Carnegie Mellon University. All rights reserved.
|
||
|
|
*
|
||
|
|
* All use of this software is subject to the terms of the revised BSD
|
||
|
|
* license. You should have received a copy of this license along
|
||
|
|
* with this source code in a file named "LICENSE."
|
||
|
|
*
|
||
|
|
* @file occluderNode.h
|
||
|
|
* @author jenes
|
||
|
|
* @date 2011-03-11
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef OCCLUDERNODE_H
|
||
|
|
#define OCCLUDERNODE_H
|
||
|
|
|
||
|
|
#include "pandabase.h"
|
||
|
|
|
||
|
|
#include "pandaNode.h"
|
||
|
|
#include "nodePath.h"
|
||
|
|
#include "pvector.h"
|
||
|
|
#include "geom.h"
|
||
|
|
#include "texture.h"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* A node in the scene graph that can hold an occluder polygon, which must be
|
||
|
|
* a rectangle. When the occluder is activated with something like
|
||
|
|
* render.set_occluder(), then objects whose bouding volume lies entirely
|
||
|
|
* behind the occluder will not be rendered.
|
||
|
|
*/
|
||
|
|
class EXPCL_PANDA_PGRAPH OccluderNode : public PandaNode {
|
||
|
|
PUBLISHED:
|
||
|
|
explicit OccluderNode(const std::string &name);
|
||
|
|
|
||
|
|
protected:
|
||
|
|
OccluderNode(const OccluderNode ©);
|
||
|
|
|
||
|
|
public:
|
||
|
|
virtual ~OccluderNode();
|
||
|
|
virtual PandaNode *make_copy() const;
|
||
|
|
virtual bool preserve_name() const;
|
||
|
|
virtual void xform(const LMatrix4 &mat);
|
||
|
|
|
||
|
|
virtual bool cull_callback(CullTraverser *trav, CullTraverserData &data);
|
||
|
|
virtual bool is_renderable() const;
|
||
|
|
|
||
|
|
virtual void output(std::ostream &out) const;
|
||
|
|
|
||
|
|
PUBLISHED:
|
||
|
|
INLINE void set_double_sided(bool value);
|
||
|
|
INLINE bool is_double_sided();
|
||
|
|
INLINE void set_min_coverage(PN_stdfloat value);
|
||
|
|
INLINE PN_stdfloat get_min_coverage();
|
||
|
|
INLINE void set_vertices(const LPoint3 &v0, const LPoint3 &v1,
|
||
|
|
const LPoint3 &v2, const LPoint3 &v3);
|
||
|
|
INLINE size_t get_num_vertices() const;
|
||
|
|
INLINE const LPoint3 &get_vertex(size_t n) const;
|
||
|
|
INLINE void set_vertex(size_t n, const LPoint3 &v);
|
||
|
|
MAKE_SEQ(get_vertices, get_num_vertices, get_vertex);
|
||
|
|
|
||
|
|
MAKE_PROPERTY(double_sided, is_double_sided, set_double_sided);
|
||
|
|
MAKE_PROPERTY(min_coverage, get_min_coverage, set_min_coverage);
|
||
|
|
MAKE_SEQ_PROPERTY(vertices, get_num_vertices, get_vertex, set_vertex);
|
||
|
|
|
||
|
|
protected:
|
||
|
|
virtual void compute_internal_bounds(CPT(BoundingVolume) &internal_bounds,
|
||
|
|
int &internal_vertices,
|
||
|
|
int pipeline_stage,
|
||
|
|
Thread *current_thread) const;
|
||
|
|
PT(Geom) get_occluder_viz(CullTraverser *trav, CullTraverserData &data);
|
||
|
|
CPT(RenderState) get_occluder_viz_state(CullTraverser *trav, CullTraverserData &data);
|
||
|
|
CPT(RenderState) get_frame_viz_state(CullTraverser *trav, CullTraverserData &data);
|
||
|
|
|
||
|
|
private:
|
||
|
|
bool _double_sided;
|
||
|
|
PN_stdfloat _min_coverage;
|
||
|
|
typedef pvector<LPoint3> Vertices;
|
||
|
|
Vertices _vertices;
|
||
|
|
|
||
|
|
PT(Geom) _occluder_viz, _frame_viz;
|
||
|
|
static PT(Texture) _viz_tex;
|
||
|
|
|
||
|
|
public:
|
||
|
|
static void register_with_read_factory();
|
||
|
|
virtual void write_datagram(BamWriter *manager, Datagram &dg);
|
||
|
|
virtual int complete_pointers(TypedWritable **plist, BamReader *manager);
|
||
|
|
|
||
|
|
protected:
|
||
|
|
static TypedWritable *make_from_bam(const FactoryParams ¶ms);
|
||
|
|
void fillin(DatagramIterator &scan, BamReader *manager);
|
||
|
|
|
||
|
|
public:
|
||
|
|
static TypeHandle get_class_type() {
|
||
|
|
return _type_handle;
|
||
|
|
}
|
||
|
|
static void init_type() {
|
||
|
|
PandaNode::init_type();
|
||
|
|
register_type(_type_handle, "OccluderNode",
|
||
|
|
PandaNode::get_class_type());
|
||
|
|
}
|
||
|
|
virtual TypeHandle get_type() const {
|
||
|
|
return get_class_type();
|
||
|
|
}
|
||
|
|
virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
|
||
|
|
|
||
|
|
private:
|
||
|
|
static TypeHandle _type_handle;
|
||
|
|
};
|
||
|
|
|
||
|
|
#include "occluderNode.I"
|
||
|
|
|
||
|
|
#endif
|