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00035 #ifndef __CLIGHTSOURCE_H
00036 #define __CLIGHTSOURCE_H
00037
00038
00039
00041 #include "CV3D.h"
00042 #include "CP3D.h"
00043 #include "GeoGeneric.h"
00044
00045
00046
00048
00049
00055 class CLightSource
00056
00057 {
00058 public:
00059 enum LightStatus {
00060 ON,
00061 OFF
00062 };
00063
00064 enum LightSourceType {
00065 DIRECTIONAL,
00066 POINT,
00067 CONE,
00068 CONE_DIFFUSE
00069 };
00070
00071
00072
00077 CLightSource()
00078 : m_LightSourceType(POINT),
00079 m_LightStatus(ON),
00080 m_Point(CP3D(0,0,0)),
00081 m_Direction(CV3D(0,0,-1)),
00082 m_rfIntensity(1.0),
00083 m_rfAngle(180.0),
00084 m_rfExponent(0.0),
00085 m_rfConstantAttenuation(1.0),
00086 m_rfLinearAttenuation(0.0),
00087 m_rfQuadraticAttenuation(0.0)
00088
00089 {
00090 setColor(1.0, 1.0, 1.0);
00091 };
00092
00094 CLightSource(const CLightSource &);
00095
00097 CLightSource(LightSourceType nType);
00098
00100 CLightSource(const CV3D &direction, float rfIntensity=1.0);
00101
00103 CLightSource(const CP3D &point, float rfIntensity=1.0);
00104
00106 CLightSource(const CP3D &point, const CV3D &direction,
00107 float rfAngle, float rfIntensity=1.0);
00108
00110 CLightSource(const CP3D &point, const CV3D &direction, float rfAngle,
00111 float rfExponent=50.0, float rfIntensity=1.0);
00112
00113
00114
00115
00116 virtual ~CLightSource() { ;};
00117
00118
00119
00121 LightSourceType getType() const { return m_LightSourceType; };
00122
00124 LightStatus getStatus() const { return m_LightStatus; };
00125
00127 const float* getColor() const { return m_arfColor; };
00128
00130 const CP3D &getPosition() const { return m_Point; };
00131
00133 CV3D getDirection(const CP3D &point) const;
00134
00136 const CV3D &getDirection() const { return m_Direction; };
00137
00139 CV3D getDirectionToLight() const { return -1 * m_Direction; };
00140
00142 float getIntensity() const { return m_rfIntensity; };
00143
00145 float getIntensity(const CP3D &point) const;
00146
00150 float getExponent() const { return m_rfExponent; };
00151
00153 float getAngle() const { return m_rfAngle; };
00154
00156 float getConstantAttenuation() const { return m_rfConstantAttenuation; };
00157
00159 float getLinearAttenuation() const { return m_rfLinearAttenuation; };
00160
00162 float getQuadraticAttenuation() const { return m_rfQuadraticAttenuation; };
00163
00165 void setType(LightSourceType nType) { m_LightSourceType = nType; };
00166
00168 int setStatus(LightStatus status) { m_LightStatus = status; return 1; };
00169
00171 int setPosition(const CP3D &point);
00172
00174 int setDirection(const CV3D &direction);
00175
00177 int setAngle(float rfAngle);
00178
00182 int setExponent(float rfExponent);
00183
00185 int setIntensity(float rfIntensity);
00186
00188 void setColor(float rfRed, float rfGreen, float rfBlue);
00189
00191 void setConstantAttenuation(float rfValue) { m_rfConstantAttenuation = rfValue; };
00192
00194 void setLinearAttenuation(float rfValue) { m_rfLinearAttenuation = rfValue; };
00195
00197 void setQuadraticAttenuation(float rfValue) { m_rfQuadraticAttenuation = rfValue; };
00198
00199 protected:
00200
00201
00202 private:
00203
00204 LightSourceType m_LightSourceType;
00205 LightStatus m_LightStatus;
00206
00207 CP3D m_Point;
00208 CV3D m_Direction;
00209
00210 float m_arfColor[3];
00211 float m_rfIntensity;
00212 float m_rfAngle;
00213 float m_rfExponent;
00214 float m_rfConstantAttenuation;
00215 float m_rfLinearAttenuation;
00216 float m_rfQuadraticAttenuation;
00217 };
00218 #endif