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