saiday

    func fetchUserId() -> Observable<String> {
        return create{ (observer) -> Disposable in
            Client.fetchUserId() { [unowned self]
                 (userId: String?, err: ErrorType?) -> Void in
                    if let _ = err{
                        observer.on(Event.Error(err!))
                    } else {
                        observer.on(Event.Next(userId))
                        observer.on(Event.Completed)
                    }

onedayitwillmake

// Simple Lambertian lighting
// Mario Gonzalez
//
// Based on 'WebGL - A Beginners Guide'

attribute vec3 aVertexPosition;
attribute vec3 aVertexNormal;

uniform vec3 rotation;
uniform mat4 uMVMatrix;