void myAuxSolidCylinder(double r,double h) ;
void myAuxSolidCone(double r,double h) ;
void pushLumieres() ;
void popLumieres() ;
void pushMaterial() ;
void popMaterial() ;
void myInit(void) ;
void affecteMaterial(float *ma,float *md,float *me,float *ms,float ref) ;
void affectePointLight(float r,float v,float b,float x,float y,float z,float i) ;
void affecteDirLight(float r,float v,float b,float dx,float dy,float dz,float i) ;
void affecteSpotLight(float r,float v,float b,float x,float y,float z,float dx,float dy,float dz,float i,float o) ;