Polygons

#VRML V2.0 utf8

Shape {
   appearance Appearance { 
      material Material { diffuseColor 1 0 0 } 
   }
   geometry IndexedFaceSet { 
      coord Coordinate {
	 point [ 1 0 1, -1 0 1, -1 0 -1, 1 0 -1,
		 0 2 0 ]
      }
      coordIndex [ 0 1 2 3 -1, 
		   1 0 4 -1, 2 1 4 -1, 3 2 4 -1, 0 3 4 -1 ]
   }
}

NavigationInfo { type "EXAMINE" }

Viewpoint { description "start" position 0 1 5 }

Background { skyColor 1 1 1 }