126 lines
3.6 KiB
C++
126 lines
3.6 KiB
C++
// Filename: spotlight.h
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// Created by: mike (09Jan97)
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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 SPOTLIGHT_H
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#define SPOTLIGHT_H
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#include "pandabase.h"
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#include "lightLensNode.h"
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////////////////////////////////////////////////////////////////////
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// Class : Spotlight
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// Description : A light originating from a single point in space, and
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// shining in a particular direction, with a cone-shaped
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// falloff.
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//
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// The Spotlight frustum is defined using a Lens, so it
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// can have any of the properties that a camera lens can
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// have.
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//
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// Note that the class is named Spotlight instead of
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// SpotLight, because "spotlight" is a single English
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// word, instead of two words.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA Spotlight : public LightLensNode {
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PUBLISHED:
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Spotlight(const string &name);
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protected:
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Spotlight(const Spotlight ©);
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public:
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virtual PandaNode *make_copy() const;
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virtual void xform(const LMatrix4f &mat);
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virtual void write(ostream &out, int indent_level) const;
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PUBLISHED:
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INLINE float get_exponent() const;
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INLINE void set_exponent(float exponent);
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INLINE const Colorf &get_specular_color() const;
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INLINE void set_specular_color(const Colorf &color);
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INLINE const LVecBase3f &get_attenuation() const;
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INLINE void set_attenuation(const LVecBase3f &attenuation);
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public:
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virtual void bind(GraphicsStateGuardianBase *gsg, int light_id);
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bool make_image(Texture *texture, float radius);
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protected:
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virtual void fill_viz_geom(GeomNode *viz_geom);
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private:
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CPT(RenderState) get_viz_state();
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private:
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// This is the data that must be cycled between pipeline stages.
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class EXPCL_PANDA CData : public CycleData {
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public:
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INLINE CData();
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INLINE CData(const CData ©);
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virtual CycleData *make_copy() const;
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virtual void write_datagram(BamWriter *manager, Datagram &dg) const;
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virtual void fillin(DatagramIterator &scan, BamReader *manager);
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float _exponent;
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Colorf _specular_color;
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LVecBase3f _attenuation;
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};
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PipelineCycler<CData> _cycler;
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typedef CycleDataReader<CData> CDReader;
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typedef CycleDataWriter<CData> CDWriter;
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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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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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LightLensNode::init_type();
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register_type(_type_handle, "Spotlight",
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LightLensNode::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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INLINE ostream &operator << (ostream &out, const Spotlight &light) {
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light.output(out);
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return out;
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}
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#include "spotlight.I"
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#endif
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