text: #ifndef __COLOR_H__
  #define __COLOR_H__
  
  void hsv(double h, double s, double v, double* r, double* g, double* b);
  
  typedef struct {
      double r,g,b;
  } rrColor3f;
  
  typedef struct {
      double r,g,b,a;
  } rrColor4f;
  
  #endif
  