- <tt>q Q </tt> Quit
- <tt>i I </tt> Show info
- <tt>p P </tt> Toggle perspective or orthographic projection
+ - <tt>r R </tt> Toggle fixed or animated rotation around model X-axis
- <tt>= + </tt> Increase \a slices
- <tt>- _ </tt> Decreate \a slices
- <tt>, < </tt> Decreate \a stacks
static GLboolean show_info = GL_TRUE;
static float ar;
static GLboolean persProject = GL_TRUE;
+static GLboolean animateXRot = GL_FALSE;
/*
* These one-liners draw particular objects, fetching appropriate
static void drawWireIcosahedron(void) { glutWireIcosahedron (); }
static void drawSolidSierpinskiSponge(void) { glutSolidSierpinskiSponge (depth, offset, orad);} /* orad doubles as size input */
static void drawWireSierpinskiSponge(void) { glutWireSierpinskiSponge (depth, offset, orad); } /* orad doubles as size input */
-static void drawSolidTeapot(void) { glutSolidTeapot(orad); } /* orad doubles as size input */
-static void drawWireTeapot(void) { glutWireTeapot(orad); } /* orad doubles as size input */
static void drawSolidTorus(void) { glutSolidTorus(irad,orad,slices,stacks); }
static void drawWireTorus(void) { glutWireTorus (irad,orad,slices,stacks); }
static void drawSolidSphere(void) { glutSolidSphere(orad,slices,stacks); } /* orad doubles as size input */
static void drawWireCone(void) { glutWireCone(orad,orad,slices,stacks); } /* orad doubles as size input */
static void drawSolidCylinder(void) { glutSolidCylinder(orad,orad,slices,stacks); } /* orad doubles as size input */
static void drawWireCylinder(void) { glutWireCylinder(orad,orad,slices,stacks); } /* orad doubles as size input */
+static void drawSolidTeapot(void)
+{
+ /* per Glut manpage, it should be noted that the teapot is rendered
+ * with clockwise winding for front facing polygons...
+ */
+ glFrontFace(GL_CW);
+ glutSolidTeapot(orad); /* orad doubles as size input */
+ glFrontFace(GL_CCW);
+}
+static void drawWireTeapot(void)
+{
+ /* per Glut manpage, it should be noted that the teapot is rendered
+ * with clockwise winding for front facing polygons...
+ */
+ glFrontFace(GL_CW);
+ glutWireTeapot(orad); /* orad doubles as size input */
+ glFrontFace(GL_CCW);
+}
#define RADIUS 1.0f
{
const double t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
const double a = t*90.0;
+ const double b = (animateXRot?t:1)*60.0;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glPushMatrix();
glTranslated(0,1.2,-6);
- glRotated(60,1,0,0);
+ glRotated(b,1,0,0);
glRotated(a,0,0,1);
table [function_index].solid ();
glPopMatrix();
glPushMatrix();
glTranslated(0,-1.2,-6);
- glRotated(60,1,0,0);
+ glRotated(b,1,0,0);
glRotated(a,0,0,1);
table [function_index].wire ();
glPopMatrix();
case 'P':
case 'p': persProject=!persProject; break;
+ case 'R':
+ case 'r': animateXRot=!animateXRot; break;
+
default:
break;
}