void GenDodecaHedron(GLuint &DodecaDListID, const unsigned int &radius)
{
	const float			PI				= 3.1415926535897932384626433832795f;
	const float			rads			= float(PI / 180.0f);
	const GLfloat		dist			= cos(36.0f * rads) * radius;	// distance from the center to the bisection of an outer leg
	const GLfloat		dihedral_angle	= 116.565051177f;				// cos^-1(-sqrt(5)/5) ~= 116.565051177
																		// wtf is a dihedral angle? its the angle between any two adjacent faces of a polyhedra.
																		// more info: http://whistleralley.com/polyhedra/platonic.htm and http://whistleralley.com/polyhedra/dodecahedron.htm
	const GLfloat		midradius		= 1.30901699438f * radius;		// ((sqrt(5)+3)/4) ~= 1.30901699438
																		// the midradius (center-edge) is the radius from the center of the dodecahedron to the center of a face
																		// more info on platonic solids: http://davidf.faricy.net/polyhedra/Platonic_Solids.html
	
	GLuint PentDListID = glGenLists(1);
	GLuint HalfDodecaDListID = glGenLists(1);
	if(glIsList(DodecaDListID) == GL_FALSE)
	{
		DodecaDListID = glGenLists(1);
	}
	
	glNewList(PentDListID, GL_COMPILE);

		glBegin(GL_TRIANGLE_FAN);

			glVertex3f(0.0f, 0.0f, 0.0f);
			
			for(unsigned int x = 0; x < 6; ++x)
			{
				glVertex3f(	radius * sin(float(x * 72) * rads),
							radius * cos(float(x * 72) * rads),
							0.0f);
				
			}

		glEnd();

	glEndList();
	
	glNewList(HalfDodecaDListID, GL_COMPILE);
		
		glPushMatrix();
			glRotatef(-90.0f, 1.0f, 0.0f, 0.0f);
			glCallList(PentDListID);
		glPopMatrix();

		glPushMatrix();
			glTranslatef(0.0f, 0.0f, dist);
			glRotatef(dihedral_angle-90.0f, 1.0f, 0.0f, 0.0f);
			glTranslatef(0.0f, dist, 0.0f);
			glCallList(PentDListID);
		glPopMatrix();

		glPushMatrix();
			glRotatef(72.0f, 0.0f, 1.0f, 0.0f);
			glTranslatef(0.0f, 0.0f, dist);
			glRotatef(dihedral_angle-90.0f, 1.0f, 0.0f, 0.0f);
			glTranslatef(0.0f, dist, 0.0f);
			glCallList(PentDListID);
		glPopMatrix();

		glPushMatrix();
			glRotatef(-72.0f, 0.0f, 1.0f, 0.0f);
			glTranslatef(0.0f, 0.0f, dist);
			glRotatef(dihedral_angle-90.0f, 1.0f, 0.0f, 0.0f);
			glTranslatef(0.0f, dist, 0.0f);
			glCallList(PentDListID);
		glPopMatrix();

		glPushMatrix();
			glRotatef(144.0f, 0.0f, 1.0f, 0.0f);
			glTranslatef(0.0f, 0.0f, dist);
			glRotatef(dihedral_angle-90.0f, 1.0f, 0.0f, 0.0f);
			glTranslatef(0.0f, dist, 0.0f);
			glCallList(PentDListID);
		glPopMatrix();

		glPushMatrix();
			glRotatef(-144.0f, 0.0f, 1.0f, 0.0f);
			glTranslatef(0.0f, 0.0f, dist);
			glRotatef(dihedral_angle-90.0f, 1.0f, 0.0f, 0.0f);
			glTranslatef(0.0f, dist, 0.0f);
			glCallList(PentDListID);
		glPopMatrix();

	glEndList();

	glNewList(DodecaDListID, GL_COMPILE);

		glCallList(HalfDodecaDListID);
		glScalef(1.0f, -1.0f, 1.0f);
		glRotatef(180.0f, 0.0f, 1.0f, 0.0f); 
		glTranslatef(	0.0f,
						(midradius * radius) * -2.0f,
						0.0f);
		glCallList(HalfDodecaDListID);

	glEndList();

}