97 lines
2.4 KiB
C++
97 lines
2.4 KiB
C++
// Filename: fog.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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#ifndef FOG_H
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#define FOG_H
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//
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////////////////////////////////////////////////////////////////////
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// Includes
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////////////////////////////////////////////////////////////////////
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#include <pandabase.h>
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#include <graphicsStateGuardianBase.h>
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#include <typedReferenceCount.h>
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#include <luse.h>
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#include <pointerToArray.h>
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////////////////////////////////////////////////////////////////////
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// Defines
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////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////
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// Class : Fog
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// Description : Specifies atmospheric fog parameters
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA Fog : public TypedReferenceCount {
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PUBLISHED:
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enum Mode {
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M_linear, // f = (end - z) / (end - start)
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M_exponential, // f = e^(-density * z)
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M_exponential_squared // f = e^((-density * z)^2)
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};
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Fog(Mode mode = M_linear, int bits_per_color_channel = 8);
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INLINE ~Fog(void) {};
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INLINE Mode get_mode(void) const;
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INLINE void set_mode(Mode mode);
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INLINE Colorf get_color(void) const;
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INLINE void set_color(const Colorf &color);
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INLINE void get_range(float &onset, float &opaque) const;
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INLINE void set_range(float onset, float opaque);
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INLINE float get_density(void) const;
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INLINE void set_density(float fDensity);
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void output(ostream &out) const;
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public:
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INLINE void apply(GraphicsStateGuardianBase *gsg);
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protected:
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void compute_density(void);
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protected:
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Mode _mode;
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int _bits_per_color_channel;
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Colorf _color;
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float _onset_distance;
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float _opaque_distance;
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float _density;
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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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TypedReferenceCount::init_type();
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register_type(_type_handle, "Fog",
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TypedReferenceCount::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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ostream &operator << (ostream &out, Fog::Mode mode);
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INLINE ostream &operator << (ostream &out, const Fog &fog) {
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fog.output(out);
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return out;
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}
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#include "fog.I"
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#endif
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