Black Screen of Despair in Simple Atomic Example

HelloAtomic.cs

using AtomicEngine;

public class GameRoot : AppDelegate
{
    public override void Start()
    {
        // We will be needing to load resources.
        // All the resources used in this example comes with Urho3D.
        // If the engine can't find them, check the ResourcePrefixPath.
        var cache = GetSubsystem<ResourceCache>();

        // Let's setup a scene to render.
        var scene = new Scene();
        // Let the scene have an Octree component!
        scene.CreateComponent<Octree>();
        // Let's add an additional scene component for fun.
        scene.CreateComponent<DebugRenderer>();

        // Let's put some sky in there.
        // Again, if the engine can't find these resources you need to check
        // the "ResourcePrefixPath". These files come with Urho3D.
        Node skyNode=scene.CreateChild("Sky");
        skyNode.SetScale(500.0f); // The scale actually does not matter
        Skybox skybox=skyNode.CreateComponent<Skybox>();
        skybox.SetModel(cache.GetResource<Model>("Models/Box.mdl"));
        skybox.SetMaterial(cache.GetResource<Material>("Materials/Skybox.xml"));

        // Let's put a box in there.
        Node box = scene.CreateChild();
        box.SetPosition(new Vector3(0,0,5));
        StaticModel model = box.CreateComponent<StaticModel>();
        model.SetModel(cache.GetResource<Model>("Models/Box.mdl"));
        model.SetMaterial(cache.GetResource<Material>("Materials/Stone.xml"));

        // We need a camera from which the viewport can render.
        Camera camera = scene.CreateChild().CreateComponent<Camera>();
        camera.SetFarClip(2000);

        // Add one light to the camera Node
        //Light light = camera.Node.CreateComponent<Light>();
        //light.SetLightType(LightType.LIGHT_POINT);
        //light.SetRange(1000);
        //light.SetBrightness(2);
        //light.SetColor(Color.White);
        
        // Now we setup the viewport. Ofcourse, you can have more than one!
        var renderer = AtomicNET.GetSubsystem<Renderer>();
        var viewport = new Viewport(scene,camera);
        renderer.SetViewport(0,viewport);
    }
}