02/06/2003
15-462 Graphics I
24
Drawing the Icosahedron
•Normal vector calculation next
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•Should be encapsulated in display list
glBegin(GL_TRIANGLES);
for (i = 0; i < 20; i++) {
  icoNormVec(i);
  glVertex3fv(&vdata[tindices[i][0]] [0]);
  glVertex3fv(&vdata[tindices[i][1]] [0]);
  glVertex3fv(&vdata[tindices[i][2]] [0]);
}
glEnd();