historical/toontown-classic.git/panda/include/lightLensNode.h
2024-01-16 11:20:27 -06:00

127 lines
3.4 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 lightLensNode.h
* @author drose
* @date 2002-03-26
*/
#ifndef LIGHTLENSNODE_H
#define LIGHTLENSNODE_H
#include "pandabase.h"
#include "light.h"
#include "camera.h"
#include "graphicsStateGuardianBase.h"
#include "graphicsOutputBase.h"
#include "atomicAdjust.h"
class ShaderGenerator;
class GraphicsStateGuardian;
/**
* A derivative of Light and of Camera. The name might be misleading: it does
* not directly derive from LensNode, but through the Camera class. The
* Camera serves no purpose unless shadows are enabled.
*/
class EXPCL_PANDA_PGRAPHNODES LightLensNode : public Light, public Camera {
PUBLISHED:
explicit LightLensNode(const std::string &name, Lens *lens = new PerspectiveLens());
virtual ~LightLensNode();
INLINE bool has_specular_color() const;
INLINE bool is_shadow_caster() const;
void set_shadow_caster(bool caster);
void set_shadow_caster(bool caster, int buffer_xsize, int buffer_ysize, int sort = -10);
INLINE int get_shadow_buffer_sort() const;
INLINE LVecBase2i get_shadow_buffer_size() const;
INLINE void set_shadow_buffer_size(const LVecBase2i &size);
INLINE GraphicsOutputBase *get_shadow_buffer(GraphicsStateGuardianBase *gsg);
PUBLISHED:
MAKE_PROPERTY(shadow_caster, is_shadow_caster);
MAKE_PROPERTY(shadow_buffer_size, get_shadow_buffer_size, set_shadow_buffer_size);
public:
INLINE void mark_used_by_auto_shader() const;
protected:
LightLensNode(const LightLensNode &copy);
void clear_shadow_buffers();
virtual void setup_shadow_map();
LVecBase2i _sb_size;
bool _shadow_caster;
bool _has_specular_color;
int _sb_sort;
mutable bool _used_by_auto_shader = false;
PT(Texture) _shadow_map;
// This is really a map of GSG -> GraphicsOutput.
typedef pmap<PT(GraphicsStateGuardianBase), PT(GraphicsOutputBase) > ShadowBuffers;
ShadowBuffers _sbuffers;
// This counts how many LightAttribs in the world are referencing this
// LightLensNode object.
AtomicAdjust::Integer _attrib_count;
public:
virtual void attrib_ref();
virtual void attrib_unref();
virtual PandaNode *as_node();
virtual Light *as_light();
PUBLISHED:
// We have to explicitly publish these because they resolve the multiple
// inheritance.
virtual void output(std::ostream &out) const;
virtual void write(std::ostream &out, int indent_level = 0) const;
public:
virtual void write_datagram(BamWriter *manager, Datagram &dg);
protected:
void fillin(DatagramIterator &scan, BamReader *manager);
public:
static TypeHandle get_class_type() {
return _type_handle;
}
static void init_type() {
Light::init_type();
Camera::init_type();
register_type(_type_handle, "LightLensNode",
Light::get_class_type(),
Camera::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;
friend class GraphicsStateGuardian;
};
INLINE std::ostream &operator << (std::ostream &out, const LightLensNode &light) {
light.output(out);
return out;
}
#include "lightLensNode.I"
#endif