143 lines
3.6 KiB
C++
143 lines
3.6 KiB
C++
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#pragma once
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#include <cgv/math/fvec.h>
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#include <cgv/media/color.h> //@<
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//#include <cgv/gui/provider.h>
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#include "lib_begin.h" //@<
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namespace cgv { //@<
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namespace media { //@<
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namespace illum { //@<
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///@>different light source types
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enum LightType { LT_DIRECTIONAL, LT_POINT, LT_SPOT };
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///@>simple class to hold the properties of a light source
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class CGV_API light_source
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{
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public: //@<
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///@>used color type
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typedef color<float,RGB> color_type;
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///@>type of homogeneous locations
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typedef cgv::math::fvec<float,4> hvec_type;
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///@>type of vector used for directions
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typedef cgv::math::fvec<float,3> vec_type;
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protected: //@<
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///@>type of light source
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LightType type;
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///@>whether location is relative to eye coordinate system, i.e. model view is identity
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bool local_to_eye_coordinates;
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///@>homogeneous location of light source
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hvec_type location;
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///@>ambient color component
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color_type ambient;
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///@>diffuse color component
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color_type diffuse;
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///@>specular color component
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color_type specular;
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///@>attenuation coefficients used for positional light sources only
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vec_type attenuation;
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///@>direction of spot light
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vec_type spot_direction;
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///@>splot exponent
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float spot_exponent;
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///@>spot cutoff
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float spot_cutoff;
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public: //@<
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/// init with default values
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light_source(LightType _t = LT_DIRECTIONAL);
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/**name getter and setters for members*/
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///
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void set_type(LightType t) { type = t; }
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///
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LightType get_type() const { return type; }
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///
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LightType& ref_type() { return type; }
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///
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void set_local_to_eye(bool l) { local_to_eye_coordinates = l; }
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///
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bool is_local_to_eye() const { return local_to_eye_coordinates; }
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///
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bool& ref_local_to_eye() { return local_to_eye_coordinates; }
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///
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void set_location(const hvec_type& loc) { location = loc; }
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///
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const hvec_type& get_location() const { return location; }
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///
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hvec_type& ref_location() { return location; }
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///
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void set_ambient(const color_type& c) { ambient = c; }
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///
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const color_type& get_ambient() const { return ambient; }
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///
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color_type& ref_ambient() { return ambient; }
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///
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void set_diffuse(const color_type& c) { diffuse = c; }
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///
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const color_type& get_diffuse() const { return diffuse; }
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///
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color_type& ref_diffuse() { return diffuse; }
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///
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void set_specular(const color_type& c) { specular = c; }
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///
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const color_type& get_specular() const { return specular; }
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///
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color_type& ref_specular() { return specular; }
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///
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void set_attenuation(const vec_type& a) { attenuation = a; }
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///
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const vec_type& get_attenuation() const { return attenuation; }
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///
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vec_type& ref_attenuation() { return attenuation; }
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///
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void set_spot_direction(const vec_type& d) { spot_direction = d; }
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///
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const vec_type& get_spot_direction() const { return spot_direction; }
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///
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vec_type& ref_spot_direction() { return spot_direction; }
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///
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void set_spot_exponent(float e) { spot_exponent = e; }
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///
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float get_spot_exponent() const { return spot_exponent; }
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///
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float& ref_spot_exponent() { return spot_exponent; }
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///
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void set_spot_cutoff(float c) { spot_cutoff = c; }
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///
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float get_spot_cutoff() const { return spot_cutoff; }
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///
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float& ref_spot_cutoff() { return spot_cutoff; }
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}; //@<
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} //@<
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} //@<
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} //@<
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#include <cgv/type/info/type_name.h>
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namespace cgv {
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namespace type {
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namespace info {
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template <>
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struct type_name<cgv::media::illum::light_source>
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{
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static const char* get_name() { return "light_source"; }
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};
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}
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}
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}
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#include <cgv/config/lib_end.h>
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