app.start();
}
@Override
public void simpleInitApp() {
Ring r = new Ring(3f, 0.5f);
r.setPointSize(10f);
r.setStatic();
Geometry g = new Geometry("geo_ring", r);
Material mat = new Material(assetManager, "Common/MatDefs/Misc/SolidColor.j3md");
mat.setColor("Color", ColorRGBA.Blue);
mat.getAdditionalRenderState().setFaceCullMode(FaceCullMode.Off);
g.setMaterial(mat);