{\rtf1\ansi\deff0{\fonttbl{\f0\fnil\fcharset0 Courier New;}}
{\*\generator Msftedit 5.41.15.1507;}\viewkind4\uc1\pard\lang1033\f0\fs20 /* \par
 *  lighttool.c\par
 *  This program demonstrates the use of the GL lighting model.\par
 *  Menus allow selection of all kinds of lights and the\par
 *  number of polygons making up the plane and sphere.\par
 *  \par
 *  Objects are drawn using a grey material characteristic. \par
 *  A single light source illuminates the objects.\par
 */\par
#include <stdlib.h>\par
#include <GL/glut.h>\par
\par
  int MAXY=10;\par
  int MAXX=10;\par
  int shade_model=GL_FLAT;\par
  int wire_frame = 0;\par
  int wire_overlay = 0;\par
  int spot_on = 0;\par
  int regular_on = 1;\par
  int LightMode = 3;\par
  GLfloat light_position[] = \{ 0.0, 0.0, 10.0, 1.0 \};\par
  GLfloat light_off[] = \{0.0, 0.0, 0.0, 1.0\};\par
  GLfloat light_ambient[] = \{ 0.3, 0.3, 0.3, 1.0 \};\par
  GLfloat light_diffuse[] = \{ 1.0, 1.0, 1.0, 1.0 \};\par
\par
  GLfloat spot_diffuse[] = \{1.0, 1.0, 0.0, 1.0 \};\par
  GLfloat spot_position[] = \{ 0.0, 0.0, 10.0, 1.0 \};\par
  GLfloat spot_direction[] = \{ 0.0, 0.0, -1.0, 0.0 \};\par
\par
  GLfloat spot_cutoff = 45.0;\par
  GLfloat spot_exponent = 2.0;\par
\par
/* text: draws a string of text with an 18 point helvetica bitmap font\par
   at position (x,y) in window space (bottom left corner is (0,0). */\par
void\par
text(int x, int y, char* s) \par
\{\par
    int lines;\par
    char* p;\par
\par
    glDisable(GL_DEPTH_TEST);\par
    glDisable(GL_LIGHTING);\par
    glMatrixMode(GL_PROJECTION);\par
    glPushMatrix();\par
    glLoadIdentity();\par
    glOrtho(0, glutGet(GLUT_WINDOW_WIDTH), \par
\tab     0, glutGet(GLUT_WINDOW_HEIGHT), -1, 1);\par
    glMatrixMode(GL_MODELVIEW);\par
    glPushMatrix();\par
    glLoadIdentity();\par
    glColor3ub(255, 255, 255);\par
    glRasterPos2i(x+1, y-1);\par
    for(p = s, lines = 0; *p; p++) \{\par
\tab if (*p == '\\n') \{\par
\tab     lines++;\par
\tab     glRasterPos2i(x+1, y-1-(lines*18));\par
\tab\}\par
\tab glutBitmapCharacter(GLUT_BITMAP_TIMES_ROMAN_24, *p);\par
    \}\par
    glColor3ub(255, 255, 255);\par
    glRasterPos2i(x, y);\par
    for(p = s, lines = 0; *p; p++) \{\par
\tab if (*p == '\\n') \{\par
\tab     lines++;\par
\tab     glRasterPos2i(x, y-(lines*18));\par
\tab\}\par
\tab glutBitmapCharacter(GLUT_BITMAP_TIMES_ROMAN_24, *p);\par
    \}\par
    glMatrixMode(GL_MODELVIEW);\par
    glPopMatrix();\par
    glMatrixMode(GL_PROJECTION);\par
    glPopMatrix();\par
    glEnable(GL_DEPTH_TEST);\par
    glEnable(GL_LIGHTING);\par
\}\par
\par
/*  Initialize material property and light source.\par
 */\par
void plane(int wire)\par
\{\par
   int i,j;\par
   float llx, lly;\par
   float urx, ury; \par
   \par
   float inc_y, inc_x;\par
\par
   /* calculate size of individual rectangle */\par
   inc_y = 20.0/(float)MAXY;\par
   inc_x = 20.0/(float)MAXX; \par
\par
   llx = -10.0 - inc_x;\par
   lly = -10.0 - inc_y;\par
\par
   urx = -10.0;\par
   ury = -10.0;\par
\par
   for(i=0; i<MAXX; i++)\par
    \{\par
     llx += inc_x;\par
     urx += inc_x;\par
    for(j=0; j<MAXY; j++)\par
     \{\par
      lly += inc_y;\par
      ury += inc_y;\par
      glNormal3f(0.05*(float)lly, 0.05*(float)ury, 1.0);\par
\par
      if(wire == 1)\par
      glBegin(GL_LINE_LOOP);\par
      else\par
      glBegin(GL_QUADS);\par
\par
       glVertex3f(llx, lly, 0.0);\par
       glVertex3f(urx, lly, 0.0);\par
       glVertex3f(urx, ury, 0.0);\par
       glVertex3f(llx, ury, 0.0);\par
      glEnd();\par
\par
      if(wire_overlay != 0)\par
       \{\par
\tab        glDisable(GL_LIGHTING);\par
\tab        glColor3f(1.0, 1.0, 0.0);\par
        glBegin(GL_LINE_LOOP);\par
        glVertex3f(llx, lly, 0.1);\par
        glVertex3f(urx, lly, 0.1);\par
        glVertex3f(urx, ury, 0.1);\par
        glVertex3f(llx, ury, 0.1);\par
        glEnd();\par
\tab        glEnable(GL_LIGHTING);\par
       \}\par
     \};\par
    lly = -10.0 - inc_y;\par
    ury = -10.0;\par
    \};\par
\}\par
\par
\par
void myinit (void)\par
\{\par
\par
    glMatrixMode (GL_PROJECTION);\par
    glLoadIdentity ();\par
    gluPerspective(25.0, 1.0, 1.0, 2000.0);\par
\par
    glMatrixMode (GL_MODELVIEW);\par
    glLoadIdentity();\par
    gluLookAt(0.0, 0.0, 100.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);\par
\par
    glLightfv (GL_LIGHT0, GL_POSITION, light_position);\par
\par
\par
    glLightfv (GL_LIGHT1, GL_DIFFUSE, spot_diffuse);\par
    glLightfv (GL_LIGHT1, GL_POSITION, spot_position);\par
    glLightfv (GL_LIGHT1, GL_SPOT_DIRECTION, spot_direction);\par
    glLightf (GL_LIGHT1, GL_SPOT_CUTOFF, spot_cutoff);\par
    glLightf (GL_LIGHT1, GL_SPOT_EXPONENT, spot_exponent);\par
\par
\par
    glEnable (GL_LIGHTING);\par
    glEnable (GL_LIGHT0);\par
    glDisable (GL_LIGHT1);\par
    glEnable(GL_DEPTH_TEST);\par
\}\par
\par
void display (void)\par
\{\par
\par
    glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);\par
    glShadeModel(shade_model);\par
\par
    glPushMatrix();\par
    plane(wire_frame);\par
    glTranslatef(0.0, -15.0, 0.0);\par
     if(wire_frame == 1)\par
      glutWireSphere(5.0, MAXX, MAXY);\par
     else\par
      glutSolidSphere(5.0, MAXX, MAXY);\par
    glPopMatrix();\par
    glPushMatrix();\par
    glTranslatef(-15.0, 0.0, 0.0);\par
     if(wire_frame == 1)\par
      glutWireSphere(5.0, MAXX, MAXY);\par
     else\par
      glutSolidSphere(5.0, MAXX, MAXY);\par
    glPopMatrix();\par
    glPushMatrix();\par
    glTranslatef(15.0, 0.0, 0.0);\par
     if(wire_frame == 1)\par
      glutWireSphere(5.0, MAXX, MAXY);\par
     else\par
      glutSolidSphere(5.0, MAXX, MAXY);\par
    glPopMatrix();\par
    glPushMatrix();\par
    glTranslatef(0.0, 15.0, 0.0);\par
     if(wire_frame == 1)\par
      glutWireSphere(5.0, MAXX, MAXY);\par
     else\par
      glutSolidSphere(5.0, MAXX, MAXY);\par
    glPopMatrix();\par
    switch(MAXX) \{\par
\tab\tab case 2:\par
                text(5,45,"#sides:2");\par
\tab\tab break;\par
\par
\tab\tab case 3:\par
                text(5,45,"#sides:3");\par
\tab\tab break;\par
\par
\tab\tab case 4:\par
                text(5,45,"#sides:4");\par
\tab\tab break;\par
\par
\tab\tab case 5:\par
                text(5,45,"#sides:5");\par
\tab\tab break;\par
\par
\tab\tab case 6:\par
                text(5,45,"#sides:6");\par
\tab\tab break;\par
\par
\tab\tab case 7:\par
                text(5,45,"#sides:7");\par
\tab\tab break;\par
\par
\tab\tab case 8:\par
                text(5,45,"#sides:8");\par
\tab\tab break;\par
\par
\tab\tab case 9:\par
                text(5,45,"#sides:9");\par
\tab\tab break;\par
\par
\tab\tab case 10:\par
                text(5,45,"#sides:10");\par
\tab\tab break;\par
\par
\tab\tab case 20:\par
                text(5,45,"#sides:20");\par
\tab\tab break;\par
\par
\tab\tab case 40:\par
                text(5,45,"#sides:40");\par
\tab\tab break;\par
\tab\tab\};\par
\par
    switch(shade_model) \{\par
            case GL_FLAT:\par
\tab\tab text(5,25,"flat");\par
            \tab break;\par
\par
            case GL_SMOOTH:\par
\tab\tab text(5,25,"smooth");\par
\tab\tab break;\par
            \};\par
\par
    switch(LightMode) \{\par
\tab     case 1:\par
\tab\tab     text(5,5,"ambient");\par
\tab\tab     break;\par
\tab     case 2:\par
\tab\tab     text(5,5,"diffuse");\par
\tab\tab     break;\par
\tab     case 3:\par
\tab\tab     text(5,5,"ambient & diffuse");\par
\tab\tab     break;\par
\tab\tab    \};\par
    glFlush ();\par
\}\par
\par
void number_sides(int value)\par
\{\par
   MAXX = value;\par
   MAXY = value;\par
   glutPostRedisplay();\par
\}\par
\par
void light_mode(int value)\par
\{\par
  switch(value)\par
  \{\par
   case 1:\par
    glLightfv (GL_LIGHT0, GL_AMBIENT, light_ambient);\par
    glLightfv (GL_LIGHT0, GL_DIFFUSE, light_off);\par
    LightMode = 1;\par
    break;\par
\par
   case 2:\par
    glLightfv (GL_LIGHT0, GL_AMBIENT, light_off);\par
    glLightfv (GL_LIGHT0, GL_DIFFUSE, light_diffuse);\par
    LightMode = 2;\par
    break;\par
\par
   case 3:\par
    glLightfv (GL_LIGHT0, GL_AMBIENT, light_ambient);\par
    glLightfv (GL_LIGHT0, GL_DIFFUSE, light_diffuse);\par
    LightMode = 3;\par
    break;\par
  \};\par
\par
  glutPostRedisplay();\par
\}\par
\par
void position(int value)\par
\{\par
   switch(value)\par
   \{\par
    case 1:\par
     if(regular_on)\par
      \{\par
       light_position[0] = 0.0;\par
       light_position[1] = 0.0;\par
       light_position[2] = 1.0;\par
       light_position[3] = 1.0;\par
      \};\par
     if(spot_on)\par
      \{\par
       spot_position[2] = 1.0;\par
       spot_position[3] = 1.0;\par
      \};\par
     break;\par
\par
    case 2:\par
     if(regular_on)\par
      \{\par
       light_position[0] = 0.0;\par
       light_position[1] = 0.0;\par
       light_position[2] = 5.0;\par
       light_position[3] = 1.0;\par
      \};\par
     if(spot_on)\par
      \{\par
       spot_position[2] = 5.0;\par
       spot_position[3] = 1.0;\par
      \};\par
     break;\par
\par
    case 3:\par
     if(regular_on)\par
      \{\par
       light_position[0] = 0.0;\par
       light_position[1] = 0.0;\par
       light_position[2] = 10.0;\par
       light_position[3] = 1.0;\par
      \};\par
     if(spot_on)\par
      \{\par
       spot_position[2] = 10.0;\par
       spot_position[3] = 1.0;\par
      \};\par
     break;\par
\par
    case 4:\par
     if(regular_on)\par
      \{\par
       light_position[0] = 0.0;\par
       light_position[1] = 0.0;\par
       light_position[2] = 20.0;\par
       light_position[3] = 1.0;\par
      \};\par
     if(spot_on)\par
      \{\par
       spot_position[2] = 20.0;\par
       spot_position[3] = 1.0;\par
      \};\par
     break;\par
\par
      case 5:\par
     if(regular_on)\par
      \{\par
       light_position[0] = -10.0;\par
       light_position[1] = -10.0;\par
       light_position[2] = 1.0;\par
       light_position[3] = 1.0;\par
      \};\par
     break;\par
\par
      case 6:\par
     if(regular_on)\par
     \{\par
        light_position[0] = 0.0;\par
        light_position[1] = 0.0;\par
\tab light_position[2] = 1.0;\par
\tab light_position[3] = 0.0;\par
     \};\par
     break;\par
\par
  \}\par
  glLightfv (GL_LIGHT0, GL_POSITION, light_position);\par
  glLightfv (GL_LIGHT1, GL_POSITION, spot_position);\par
  glutPostRedisplay();\par
\}\par
\par
\par
void light_color(int value)\par
\{\par
   switch(value)\par
    \{\par
/* ambient light */\par
     case 1:\par
      light_ambient[0] = 1.0;\par
      light_ambient[1] = 0.0;\par
      light_ambient[2] = 0.0;\par
      glLightfv (GL_LIGHT0, GL_AMBIENT, light_ambient);\par
      break;\par
\par
     case 2:\par
      light_ambient[0] = 0.0;\par
      light_ambient[1] = 1.0;\par
      light_ambient[2] = 0.0;\par
      glLightfv (GL_LIGHT0, GL_AMBIENT, light_ambient);\par
      break;\par
\par
     case 3:\par
      light_ambient[0] = 0.0;\par
      light_ambient[1] = 0.0;\par
      light_ambient[2] = 1.0;\par
      glLightfv (GL_LIGHT0, GL_AMBIENT, light_ambient);\par
      break;\par
\par
     case 4:\par
      light_ambient[0] = 1.0;\par
      light_ambient[1] = 1.0;\par
      light_ambient[2] = 1.0;\par
      glLightfv (GL_LIGHT0, GL_AMBIENT, light_ambient);\par
      break;\par
\par
/* diffuse light */\par
      break;\par
     case 5:\par
      light_diffuse[0] = 1.0;\par
      light_diffuse[1] = 0.0;\par
      light_diffuse[2] = 0.0;\par
      glLightfv (GL_LIGHT0, GL_DIFFUSE, light_diffuse);\par
      break;\par
\par
     case 6:\par
      light_diffuse[0] = 0.0;\par
      light_diffuse[1] = 1.0;\par
      light_diffuse[2] = 0.0;\par
      glLightfv (GL_LIGHT0, GL_DIFFUSE, light_diffuse);\par
      break;\par
\par
     case 7:\par
      light_diffuse[0] = 0.0;\par
      light_diffuse[1] = 0.0;\par
      light_diffuse[2] = 1.0;\par
      glLightfv (GL_LIGHT0, GL_DIFFUSE, light_diffuse);\par
      break;\par
     case 8:\par
      light_diffuse[0] = 1.0;\par
      light_diffuse[1] = 1.0;\par
      light_diffuse[2] = 1.0;\par
      glLightfv (GL_LIGHT0, GL_DIFFUSE, light_diffuse);\par
      break;\par
  \};\par
  glutPostRedisplay();\par
\}\par
\par
void overlay(int value)\par
\{\par
  switch(value)\par
  \{\par
   case 1:\par
    wire_overlay = 1;\par
    break;\par
  \par
   case 2:\par
    wire_overlay = 0;\par
    break;\par
  \};\par
  glutPostRedisplay();\par
\}\par
\par
void draw_mode(int value)\par
\{\par
  switch(value)\par
   \{\par
    case 1:\par
    wire_frame = 1;\par
    break;\par
\par
    case 2:\par
    wire_frame = 0;\par
    break;\par
   \}\par
  glutPostRedisplay();\par
\}\par
\par
void spot(int value)\par
\{\par
  switch(value)\par
  \{\par
   case 1:\par
    glEnable(GL_LIGHT1);\par
    glDisable(GL_LIGHT0);\par
    spot_on = 1;\par
    regular_on = 0;\par
    break;\par
\par
   case 2:\par
    glEnable(GL_LIGHT0);\par
    glDisable(GL_LIGHT1);\par
    spot_on = 0;\par
    regular_on = 1;\par
    break;\par
\par
   case 3:\par
    glEnable(GL_LIGHT0);\par
    regular_on = 1;\par
    glEnable(GL_LIGHT1);\par
    spot_on = 1;\par
    break;\par
  \}\par
  glutPostRedisplay();\par
\}\par
\par
void spotcut(int value)\par
\{\par
  switch(value)\par
   \{\par
    case 1:\par
    spot_cutoff = 1.0;\par
    break;\par
\par
    case 2:\par
    spot_cutoff = 5.0;\par
    break;\par
\par
    case 3:\par
    spot_cutoff = 10.0;\par
    break;\par
\par
    case 4:\par
    spot_cutoff = 20.0;\par
    break;\par
\par
    case 5:\par
    spot_cutoff = 30.0;\par
    break;\par
\par
    case 6:\par
    spot_cutoff = 40.0;\par
    break;\par
\par
    case 7:\par
    spot_cutoff = 60.0;\par
    break;\par
\par
    case 8:\par
    spot_cutoff = 90.0;\par
    break;\par
\par
    case 9:\par
    spot_cutoff = 180.0;\par
    break;\par
   \}\par
\par
 glLightf (GL_LIGHT1, GL_SPOT_CUTOFF, spot_cutoff);\par
 glutPostRedisplay();\par
\}\par
\par
void shademodel(int value)\par
\{\par
  switch(value)\par
  \{\par
    case 1:\par
      shade_model=GL_FLAT;\par
      break;\par
\par
    case 2:\par
      shade_model=GL_SMOOTH;\par
      break;\par
  \}\par
\}\par
\par
void spotexp(int value)\par
\{\par
  switch(value)\par
   \{\par
    case 1:\par
    spot_exponent = 1.0;\par
    break;\par
\par
    case 2:\par
    spot_exponent = 2.0;\par
    break;\par
\par
    case 3:\par
    spot_exponent = 4.0;\par
    break;\par
\par
    case 4:\par
    spot_exponent = 8.0;\par
    break;\par
\par
    case 5:\par
    spot_exponent = 10.0;\par
    break;\par
   \}\par
\par
 glLightf (GL_LIGHT1, GL_SPOT_EXPONENT, spot_exponent);\par
 glutPostRedisplay();\par
\}\par
     \par
\par
void choice_selected(int value)\par
\{\par
  if(value == 666) exit(-1);\par
\}\par
\par
void myReshape(int w, int h)\par
\{\par
    glViewport (0, 0, w, h);\par
\}\par
\par
void keyboard(unsigned char key, int x, int y)\par
\{\par
   switch (key) \{\par
      case 27:    /* escape key */\par
         exit(0);\par
         break;\par
   \}\par
\}\par
\par
/*  Main Loop\par
 *  Open window with initial window size, title bar, \par
 *  RGBA display mode, and handle input events.\par
 */\par
int main(int argc, char** argv)\par
\{\par
    int submenu1, submenu2, submenu3, submenu4, submenu5;\par
    int submenu6, submenu7, submenu8, submenu9, submenu10;\par
\par
    glutInit(&argc, argv);\par
    glutInitDisplayMode (GLUT_SINGLE | GLUT_RGBA | GLUT_DEPTH);\par
    glutInitWindowSize (500, 500);\par
    glutCreateWindow (argv[0]);\par
    myinit ();\par
\par
    submenu1 = glutCreateMenu(light_mode);\par
    glutAddMenuEntry("Ambient Only", 1);\par
    glutAddMenuEntry("Diffuse Only", 2);\par
    glutAddMenuEntry("Ambient & Diffuse", 3);\par
 \par
    submenu2 = glutCreateMenu(light_color);\par
    glutAddMenuEntry("Ambient->Red", 1);\par
    glutAddMenuEntry("Ambient->Green", 2);\par
    glutAddMenuEntry("Ambient->Blue", 3);\par
    glutAddMenuEntry("Ambient->White", 4);\par
    glutAddMenuEntry("Diffuse->Red", 5);\par
    glutAddMenuEntry("Diffuse->Green", 6);\par
    glutAddMenuEntry("Diffuse->Blue", 7);\par
    glutAddMenuEntry("Diffuse->White", 8);\par
   \par
    submenu3 = glutCreateMenu(draw_mode);\par
    glutAddMenuEntry("Wire Frame", 1);\par
    glutAddMenuEntry("Solid", 2);\par
\par
    submenu4 = glutCreateMenu(number_sides);\par
     glutAddMenuEntry("2", 2);\par
     glutAddMenuEntry("3", 3);\par
     glutAddMenuEntry("4", 4);\par
     glutAddMenuEntry("5", 5);\par
     glutAddMenuEntry("6", 6);\par
     glutAddMenuEntry("7", 7);\par
     glutAddMenuEntry("8", 8);\par
     glutAddMenuEntry("9", 9);\par
     glutAddMenuEntry("10", 10);\par
     glutAddMenuEntry("20", 20);\par
     glutAddMenuEntry("40", 40);\par
    \par
    submenu5 = glutCreateMenu(position);\par
     glutAddMenuEntry("pos @ (0,0,1)", 1);\par
     glutAddMenuEntry("pos @ (0,0,5)", 2);\par
     glutAddMenuEntry("pos @ (0,0,10)", 3);\par
     glutAddMenuEntry("pos @ (0,0,20)", 4);\par
     glutAddMenuEntry("pos @ (-10,-10,5)", 5);\par
     glutAddMenuEntry("dir @ (0,0,1)", 6);\par
\par
    submenu6 = glutCreateMenu(overlay);\par
     glutAddMenuEntry("overlay grid", 1);\par
     glutAddMenuEntry("remove overlay", 2);\par
\par
    submenu7 = glutCreateMenu(spot);\par
     glutAddMenuEntry("spot light", 1);\par
     glutAddMenuEntry("regular light", 2);\par
     glutAddMenuEntry("both on", 3);\par
\par
    submenu8 = glutCreateMenu(spotcut);\par
     glutAddMenuEntry("cutoff 1.0", 1);\par
     glutAddMenuEntry("cutoff 5.0", 2);\par
     glutAddMenuEntry("cutoff 10.0", 3);\par
     glutAddMenuEntry("cutoff 20.0", 4);\par
     glutAddMenuEntry("cutoff 30.0", 5);\par
     glutAddMenuEntry("cutoff 40.0", 6);\par
     glutAddMenuEntry("cutoff 60.0", 7);\par
     glutAddMenuEntry("cutoff 90.0", 8);\par
     glutAddMenuEntry("cutoff 180.0", 9);\par
\par
    submenu9 = glutCreateMenu(spotexp);\par
     glutAddMenuEntry("exponent 1.0", 1);\par
     glutAddMenuEntry("exponent 2.0", 2);\par
     glutAddMenuEntry("exponent 4.0", 3);\par
     glutAddMenuEntry("exponent 8.0", 4);\par
     glutAddMenuEntry("exponent 10.0", 5);\par
\par
    submenu10 = glutCreateMenu(shademodel);\par
     glutAddMenuEntry("flat", 1);\par
     glutAddMenuEntry("smooth", 2);\par
   \par
    glutCreateMenu(choice_selected);\par
    glutAddMenuEntry("Quit", 666);\par
    glutAddSubMenu("Light Mode", submenu1);\par
    glutAddSubMenu("Light Color", submenu2);\par
    glutAddSubMenu("Draw Mode", submenu3);\par
    glutAddSubMenu("Number Sides", submenu4);\par
    glutAddSubMenu("Light Position", submenu5);\par
    glutAddSubMenu("Grid Overlay", submenu6);\par
    glutAddSubMenu("Spotlight", submenu7);\par
    glutAddSubMenu("Spot Cutoff", submenu8);\par
    glutAddSubMenu("Spot Exponent", submenu9);\par
    glutAddSubMenu("Shade Model", submenu10);\par
\par
    glutAttachMenu(GLUT_RIGHT_BUTTON);\par
\par
    glutKeyboardFunc(keyboard);\par
    glutReshapeFunc (myReshape);\par
    glutDisplayFunc(display);\par
    glutMainLoop();\par
    return 0;             /* ANSI C requires main to return int. */\par
\}\par
\par
}