public void ChangeRenderSystem(RenderSystem renderSystem)
 {
     this.renderSystem = renderSystem;
     sceneRenderer     = new SceneRenderer(this, renderSystem);
     foreach (var e in entities)
     {
         e.RenderSystemChange();
     }
 }
        public Scene(string name, RenderSystem renderSystem)
        {
            this.Name             = name;
            this.renderSystem     = renderSystem;
            sceneRenderer         = new SceneRenderer(this, renderSystem);
            sceneRenderer.Ambient = Ambient;
            sceneUpdater          = new SceneUpdater(this);

            contentContainer = ContentContainer.Instance();
        }