public void Save(string fileName)
{
XDocument xmlDoc = new XDocument();
xmlDoc.Declaration = new XDeclaration("1.0", "UTF-8", "yes");
XElement xmlScene = new XElement("scene");
xmlScene.SetAttributeValue("desc", "Scene generated by kEditor");
xmlScene.SetAttributeValue("author", "Lukas Jech");
XElement background = new XElement("background");
background.Add(MathUtils.GetRGBElement("color", new Vector()));
background.Add(MathUtils.GetRGBElement("ambientLight", new Vector(0.1, 0.1, 0.1)));
xmlScene.Add(background);
SceneCamera.Save(xmlScene);
SaveLights(xmlScene);
SaveMaterials(xmlScene);
SaveFigures(xmlScene);
xmlDoc.Add(xmlScene);
xmlDoc.Save(fileName);
}