pyramidSceneObjectSet = new HashSet<>();
Point point1 = new Point(-1.8, -1.8, 0);
Point point2 = new Point(1.8, -1.8, 0);
Point point3 = new Point(0, 1.8, 0);
Point point4 = new Point(0, 0, 1.2);
Face face1 = new Face(point1, point2, point3);
Face face2 = new Face(point1, point2, point4);
Face face3 = new Face(point1, point4, point3);
Face face4 = new Face(point4, point3, point2);
Polygon polygon1 = new Polygon(face1);
Polygon polygon2 = new Polygon(face2);
Polygon polygon3 = new Polygon(face3);
Polygon polygon4 = new Polygon(face4);
pyramidSceneObjectSet.add(new PolygonalSceneObject("pyramid",