func main() {
	var running bool = true

	if err := glfw.Init(); err != nil {
		fmt.Fprintf(os.Stderr, "[e] %v\n", err)
		return
	}

	defer glfw.Terminate()

	if err := glfw.OpenWindow(appWidth, appHeight, 8, 8, 8, 8,
		24, 8, glfw.Windowed); err != nil {
		fmt.Fprintf(os.Stderr, "[e] %v\n", err)
		return
	}
	defer glfw.CloseWindow()

	glfw.SetSwapInterval(1)
	glfw.SetWindowTitle(caption)

	if !horde3d.Init() {
		fmt.Println("Error starting Horde3D. Check Horde3d_log.html for details.")
		horde3d.DumpMessages()
		return
	}

	//horde3d.SetOption(horde3d.Options_DebugViewMode, 1)
	// Add resources
	//pipeline
	pipeRes = horde3d.AddResource(horde3d.ResTypes_Pipeline, "pipelines/hdr.pipeline.xml", 0)

	knightRes := horde3d.AddResource(horde3d.ResTypes_SceneGraph, "models/knight/knight.scene.xml", 0)

	//load resources paths separated by |
	horde3d.LoadResourcesFromDisk("../content")

	model := horde3d.RootNode.AddNodes(knightRes)
	model.SetTransform(0, 0, -30, 0, 0, 0, 0.1, 0.1, 0.1)

	// Add light source
	light := horde3d.RootNode.AddLightNode("Light1", 0, "LIGHTING", "SHADOWMAP")
	light.SetTransform(0, 20, 0, 0, 0, 0, 1, 1, 1)
	light.SetNodeParamF(horde3d.Light_RadiusF, 0, 50)

	//add camera
	cam = horde3d.RootNode.AddCameraNode("Camera", pipeRes)
	glfw.SetWindowSizeCallback(onResize)

	for running {

		horde3d.Render(cam)
		horde3d.FinalizeFrame()
		horde3d.DumpMessages()
		glfw.SwapBuffers()
		running = glfw.Key(glfw.KeyEsc) == 0 &&
			glfw.WindowParam(glfw.Opened) == 1
	}

	horde3d.Release()
}

func main() {
	var err error
	if err = glfw.Init(); err != nil {
		fmt.Fprintf(os.Stderr, "[e] %v\n", err)
		return
	}

	defer glfw.Terminate()

	if err = glfw.OpenWindow(Width, Height, 8, 8, 8, 8, 0, 8, glfw.Windowed); err != nil {
		fmt.Fprintf(os.Stderr, "[e] %v\n", err)
		return
	}

	defer glfw.CloseWindow()

	glfw.SetSwapInterval(1)
	glfw.SetWindowTitle(Title)
	glfw.SetWindowSizeCallback(onResize)
	glfw.SetKeyCallback(onKey)

	initGL()

	running = true
	for running && glfw.WindowParam(glfw.Opened) == 1 {
		drawScene()
	}
}

func main() {
	rand.Seed(time.Now().UnixNano())

	glfw.Init()
	defer glfw.Terminate()
	glfw.OpenWindow(Width, Height, 8, 8, 8, 8, 0, 8, glfw.Windowed)
	defer glfw.CloseWindow()

	glfw.SetSwapInterval(1)
	glfw.SetWindowTitle("Chipmunk demo")
	glfw.SetWindowSizeCallback(onResize)
	glfw.SetKeyCallback(onKey)

	initGL()
	initScene()

	Running = true

	for Running && glfw.WindowParam(glfw.Opened) == 1 {
		drawScene()
		space.Step(1.0 / 20.0 / 3.0)
		space.Step(1.0 / 20.0 / 3.0)
		space.Step(1.0 / 20.0 / 3.0)
	}
}

func main() {
	log.Printf("Starting glfw window")

	err := glfw.Init()
	if err != nil {
		log.Fatalf("Error while starting glfw library: %v", err)
	}
	defer glfw.Terminate()

	err = glfw.OpenWindow(256, 256, 8, 8, 8, 0, 0, 0, glfw.Windowed)
	if err != nil {
		log.Fatalf("Error while opening glfw window: %v", err)
	}
	defer glfw.CloseWindow()

	glfw.SetSwapInterval(1) //vsync on

	glfw.SetWindowTitle("Colored Triangle")

	InitGL()

	glfw.SetWindowSizeCallback(func(w, h int) { InitGLWindow(w, h) })
	glfw.SetKeyCallback(func(key, state int) { HandleKey(key, state) })

	run := true
	for run && glfw.WindowParam(glfw.Opened) == 1 {
		select {
		case exitCode := <-exit:
			log.Printf("Received exit code: %d", exitCode)
			run = false
		default:
			Draw()
		}
	}
}

func main() {
	if err := glfw.Init(); err != nil {
		fmt.Fprintf(os.Stderr, "glfw: %s\n", err)
		return
	}
	defer glfw.Terminate()

	glfw.OpenWindowHint(glfw.WindowNoResize, 0)

	if err := glfw.OpenWindow(Width, Height, 0, 0, 0, 0, 16, 0, glfw.Windowed); err != nil {
		fmt.Fprintf(os.Stderr, "glfw: %s\n", err)
		return
	}
	defer glfw.CloseWindow()

	glfw.SetSwapInterval(60)
	glfw.SetWindowTitle(Title)

	if err := gl.Init(); err != nil {
		fmt.Fprintf(os.Stderr, "gl: %s\n", err)
	}

	keybindings.BindKeyboard()

	gl.ClearColor(0, 0, 0, 1)

	GameLoop()

}

func main() {
	flag.Parse()

	Load(flag.Args())

	Init(800, 600, *flag_smooth, *flag_multisample, true)
	InitInputHandlers()
	defer glfw.CloseWindow()
	defer glfw.Terminate()

	start := time.Now()
	frames := 0

	Viewpos[2] = -20

	for glfw.WindowParam(glfw.Opened) == 1 { // window open
		Render()
		frames++
		if Wantscrot {
			Screenshot()
			Wantscrot = false
		}
		glfw.WaitEvents()
	}

	fps := int((float64(frames) / float64(time.Since(start))) * float64(time.Second))
	log.Println("average FPS:", fps)
}

func main() {
	glfw.Init()
	defer glfw.Terminate()

	glfw.OpenWindow(640, 480, 8, 8, 8, 8, 0, 0, glfw.Windowed)
	defer glfw.CloseWindow()

	glfw.SetWindowTitle("Tile test")
	glfw.Enable(glfw.StickyKeys)
	glfw.SetSwapInterval(1)
	glfw.SetKeyCallback(inputCallback)

	gl.MatrixMode(gl.PROJECTION)
	gl.LoadIdentity()
	gl.Ortho(0, GridWidth, GridHeight, 0, -1, 1)
	gl.MatrixMode(gl.MODELVIEW)
	gl.Disable(gl.DEPTH_TEST)
	gl.Enable(gl.TEXTURE_2D)
	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)

	gl.ClearColor(0.0, 0.0, 0.0, 1.0)
	initResources()
	initWorld()

	for Running {
		if (time.Since(DT).Nanoseconds() / 1000000) > 15 { //don't loop faster than every 15ms
			DT = time.Now()
			gl.Clear(gl.COLOR_BUFFER_BIT)
			player.update()
			renderScene()
			glfw.SwapBuffers()
		}
	}
}

func main() {
	if err := glfw.Init(); err != nil {
		fmt.Fprintf(os.Stderr, "glfw: %s\n", err)
		return
	}
	defer glfw.Terminate()

	glfw.OpenWindowHint(glfw.WindowNoResize, 1)

	if err := glfw.OpenWindow(Width, Height, 0, 0, 0, 0, 0, 0, glfw.Windowed); err != nil {
		fmt.Fprintf(os.Stderr, "glfw: %s\n", err)
		return
	}
	defer glfw.CloseWindow()

	glfw.SetSwapInterval(1)
	glfw.SetWindowTitle(Title)

	if err := gl.Init(); err != nil {
		fmt.Fprintf(os.Stderr, "gl: %s\n", err)
	}

	if err := initScene(); err != nil {
		fmt.Fprintf(os.Stderr, "init: %s\n", err)
		return
	}
	defer destroyScene()

	for glfw.WindowParam(glfw.Opened) == 1 {
		drawScene()
		glfw.SwapBuffers()
	}
}

func main() {
	var err error

	if err = glfw.Init(); err != nil {
		fmt.Fprintf(os.Stderr, "[e] %v\n", err)
		return
	}
	defer glfw.Terminate()

	if err = glfw.OpenWindow(Width, Height, 8, 8, 8, 8, 0, 8, glfw.Windowed); err != nil {
		fmt.Fprintf(os.Stderr, "[e] %v\n", err)
		return
	}
	defer glfw.CloseWindow()

	glfw.SetSwapInterval(1)
	glfw.SetWindowTitle(Title)
	glfw.SetWindowSizeCallback(onResize)
	glfw.SetKeyCallback(onKey)

	gl.ShadeModel(gl.SMOOTH)
	gl.ClearColor(0, 0, 0, 0)
	gl.ClearDepth(1)
	gl.Enable(gl.TEXTURE_2D)

	for running && glfw.WindowParam(glfw.Opened) == 1 {
		update()
		draw()
	}
}

func main() {
	// We need to lock the goroutine to one thread due time.Ticker
	runtime.LockOSThread()

	var err os.Error
	err = glfw.Init()
	if err != nil {
		fmt.Printf("GLFW: %s\n", err)
		return
	}
	defer glfw.Terminate()

	// You could probably change the required versions down
	glfw.OpenWindowHint(glfw.OpenGLVersionMajor, 3)
	glfw.OpenWindowHint(glfw.OpenGLVersionMinor, 3)
	glfw.OpenWindowHint(glfw.OpenGLProfile, 1)

	// Open Window with 8 bit Alpha
	err = glfw.OpenWindow(ScreenWidth, ScreenHeight, 0, 0, 0, 8, 0, 0, glfw.Windowed)
	if err != nil {
		fmt.Printf("GLFW: %s\n", err)
		return
	}
	defer glfw.CloseWindow()

	glfw.SetWindowTitle(WindowTitle)

	major, minor, rev := glfw.GLVersion()
	if major < 3 {
		fmt.Printf("Error your graphic card does not support OpenGL 3.3\n Your GL-Version is: %d, %d, %d\n", major, minor, rev)
		fmt.Println("You can try to lower the settings in glfw.OpenWindowHint(glfw.OpenGLVersionMajor/Minor.")
	}

	initStatus := gl.Init() // Init glew
	if initStatus != 0 {
		fmt.Printf("Error-code: %d Init-Status: %d\n", gl.GetError(), initStatus)
	}

	// Enable transparency in OpenGL
	gl.Enable(gl.BLEND)
	gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)

	initResources()
	// We are limiting the calls to display() (frames per second) to 60. This prevents the 100% cpu usage.
	ticker := time.NewTicker(int64(second) / 60) // max 60 fps
	for {
		<-ticker.C
		move := float32(math.Sin(glfw.Time()))
		angle := float32(glfw.Time())
		matrix = math3d.MakeTranslationMatrix(move, 0.0, 0.0)
		matrix = matrix.Multiply(math3d.MakeZRotationMatrix(angle)).Transposed()
		display()
	}

	// Free resources
	free()

	runtime.UnlockOSThread()
}

func main() {
	globalState.Mouse = make(map[int]bool)
	flag.Parse()
	var err error
	if err = glfw.Init(); err != nil {
		fmt.Fprintf(os.Stderr, "[e] %v\n", err)
		return
	}

	if len(flag.Args()) == 0 {
		old := flag.Usage
		flag.Usage = func() {
			old()
			fmt.Fprintf(os.Stderr, "You MUST pass the name of the file to view\n")
		}
		flag.Usage()
		return
	}

	mesh, err = wfobj.LoadMeshFromFile(flag.Args()[0])
	if err != nil {
		flag.Usage()
		fmt.Fprintf(os.Stderr, "[e] %v\n", err)
		return
	}

	defer glfw.Terminate()

	if err = glfw.OpenWindow(Width, Height, 8, 8, 8, 8, 0, 8, glfw.Windowed); err != nil {
		fmt.Fprintf(os.Stderr, "[e] %v\n", err)
		return
	}

	defer glfw.CloseWindow()

	glfw.SetSwapInterval(1)
	glfw.SetWindowTitle(Title)
	glfw.SetWindowSizeCallback(onResize)
	glfw.SetKeyCallback(onKey)
	glfw.SetCharCallback(onChar)
	glfw.SetMouseWheelCallback(onWheel)
	glfw.SetMouseButtonCallback(onMouseButton)
	glfw.SetMousePosCallback(onMousePos)

	initGL()

	running = true
	for running && glfw.WindowParam(glfw.Opened) == 1 {
		handleInput()
		drawScene()
	}
}

func keyPressListener(key int, action int) {
	if !running {
		return
	}

	if action == glfw.KeyPress {
		width := appWidth
		height := appHeight

		switch key {
		case glfw.KeyEsc:
			running = false
		case glfw.KeyF1:
			app.release()
			glfw.CloseWindow()

			// Toggle fullscreen mode
			fullScreen = !fullScreen

			if fullScreen {
				mode := glfw.DesktopMode()

				aspect := float32(mode.W) / float32(mode.H)
				if int(aspect*100) == 133 || int(aspect*100) == 125 { // Standard
					width = 1280
					height = 1024
				} else if int(aspect*100) == 177 { // Widescreen 16:9
					width = 1280
					height = 720
				} else if int(aspect*100) == 160 { // Widescreen 16:10
					width = 1280
					height = 800
				} else { // Unknown
					// Use desktop resolution
					width = mode.W
					height = mode.H
				}
			}

			if !setupWindow(width, height, fullScreen) {
				glfw.Terminate()
				//exit( -1 );
			}

			app.init()
			app.resize(width, height)
			t0 = glfw.Time()
		}
	}
}

func Live(in_ nimble.ChanN) {
	go func() {
		in := in_.NewReader()

		Frame = new(dump.Frame)
		Frame.Components = in.NComp()
		Frame.MeshSize = in.Mesh().Size()
		Frame.MeshStep = in.Mesh().CellSize()
		Crop2 = Frame.MeshSize
		ncell := in.Mesh().NCell()
		n := ncell * in.NComp()
		Frame.Data = make([]float32, n)

		Init(800, 600, true, 2, true)
		InitInputHandlers()
		defer glfw.CloseWindow()
		defer glfw.Terminate()
		Viewpos[2] = -20

		wantframe := new(atomicbool)
		wantframe.set(true)

		go func() {
			gpu.LockCudaThread()
			for {
				data := in.ReadNext(ncell)
				if wantframe.get() {
					for i, d := range data {
						d.Device().CopyDtoH(Frame.Data[i*ncell : (i+1)*ncell])
					}
					wantframe.set(false)
				}
				in.ReadDone()
			}
		}()

		for glfw.WindowParam(glfw.Opened) == 1 { // window open
			Render()
			if Wantscrot {
				Screenshot()
				Wantscrot = false
			}
			if wantframe.get() == false {
				PreRender(Frame)
				wantframe.set(true)
			}
		}
	}()
}

func main() {
	var err error
	if err = glfw.Init(); err != nil {
		fmt.Fprintf(os.Stderr, "[e] %v\n", err)
		return
	}

	// Ensure glfw is cleanly terminated on exit.
	defer glfw.Terminate()

	if err = glfw.OpenWindow(256, 256, 8, 8, 8, 0, 0, 0, glfw.Windowed); err != nil {
		fmt.Fprintf(os.Stderr, "[e] %v\n", err)
		return
	}

	// Ensure window is cleanly closed on exit.
	defer glfw.CloseWindow()

	// Enable vertical sync on cards that support it.
	glfw.SetSwapInterval(1)

	// Set window title
	glfw.SetWindowTitle("Simple GLFW window")

	// Hook some events to demonstrate use of callbacks.
	// These are not necessary if you don't need them.
	glfw.SetWindowSizeCallback(onResize)
	glfw.SetWindowCloseCallback(onClose)
	glfw.SetMouseButtonCallback(onMouseBtn)
	glfw.SetMouseWheelCallback(onMouseWheel)
	glfw.SetKeyCallback(onKey)
	glfw.SetCharCallback(onChar)

	// Start loop
	running := true
	for running {
		// OpenGL rendering goes here.

		// Swap front and back rendering buffers. This also implicitly calls
		// glfw.PollEvents(), so we have valid key/mouse/joystick states after
		// this. This behavior can be disabled by calling glfw.Disable with the
		// argument glfw.AutoPollEvents. You must be sure to manually call
		// PollEvents() or WaitEvents() in this case.
		glfw.SwapBuffers()

		// Break out of loop when Escape key is pressed, or window is closed.
		running = glfw.Key(glfw.KeyEsc) == 0 && glfw.WindowParam(glfw.Opened) == 1
	}
}

func main() {
	Load(os.Args[1:])

	Init(800, 600, true, Multi, false)
	defer glfw.CloseWindow()
	defer glfw.Terminate()

	Viewpos[2] = -20

	for {
		Render()
		time.Sleep(1 * time.Second)
		Screenshot()
		NextFrame()
	}
}

func main() {
	flag.Parse()

	if *cpuprofile != "" {
		f, err := os.Create(*cpuprofile)
		if err != nil {
			log.Fatal(err)
		}

		pprof.StartCPUProfile(f)
		defer pprof.StopCPUProfile()
	}

	if err := readModel(); err != nil {
		log.Fatal(err)
	}

	if err := glfw.Init(); err != nil {
		log.Fatal(err)
	}
	defer glfw.Terminate()

	glfw.OpenWindowHint(glfw.WindowNoResize, 1)

	if err := glfw.OpenWindow(Width, Height, 0, 0, 0, 0, 16, 0, glfw.Windowed); err != nil {
		log.Fatal(err)
		return
	}
	defer glfw.CloseWindow()

	glfw.SetSwapInterval(1)
	glfw.SetWindowTitle(Title)
	glfw.SetKeyCallback(onKey)

	if err := gl.Init(); err != nil {
		log.Fatal(err)
	}

	initScene()
	defer destroyScene()

	for glfw.WindowParam(glfw.Opened) == 1 {
		applyMove()
		drawScene()
		glfw.SwapBuffers()
	}
}

func (o *OpenGl) Init() {
	if err := glfw.Init(); err != nil {
		fmt.Fprintf(os.Stderr, "glfw: %s\n", err)
		return
	}
	defer glfw.Terminate()

	if err := glfw.OpenWindow(o.width, o.height, 0, 0, 0, 0, 16, 0, glfw.Windowed); err != nil {
		fmt.Fprintf(os.Stderr, "glfw: %s\n", err)
		return
	}
	defer glfw.CloseWindow()

	glfw.SetSwapInterval(1)
	glfw.SetWindowTitle(o.title)

	if err := gl.Init(); err != nil {
		fmt.Fprintf(os.Stderr, "gl: %s\n", err)
	}

	glfw.SetKeyCallback(glfw.KeyHandler(o.keyboard))
	glfw.SetMouseButtonCallback(glfw.MouseButtonHandler(o.mouseClick))
	glfw.SetMousePosCallback(glfw.MousePosHandler(o.mouseMove))
	glfw.SetMouseWheelCallback(glfw.MouseWheelHandler(o.mouseWheel))

	if err := o.initScene(); err != nil {
		fmt.Fprintf(os.Stderr, "init: %s\n", err)
		return
	}

	for glfw.WindowParam(glfw.Opened) == 1 {
		gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)

		if o.display3d != nil {
			o.set3dView()
			o.display3d()
		}
		if o.display2d != nil {
			o.set2dView()
			o.display2d()
		}

		glfw.SwapBuffers()
		time.Sleep(20 * time.Millisecond)
		//<-o.redisplay
	}
}

func main() {

	// Setup the window

	if err := glfw.Init(); err != nil {
		fmt.Fprintf(os.Stderr, "glfw: %s\n", err)
		return
	}
	// Close glfw at the end of main()
	defer glfw.Terminate()

	// Set window properties
	glfw.OpenWindowHint(glfw.WindowNoResize, 0)
	//glfw.OpenWindowHint(glfw.OpenGLForwardCompat, gl.TRUE)
	glfw.OpenWindowHint(glfw.OpenGLDebugContext, gl.TRUE)

	// Actually open the window
	if err := glfw.OpenWindow(initial_width, initial_height, 0, 0, 0, 0, 16, 0, glfw.Windowed); err != nil {
		fmt.Fprintf(os.Stderr, "glfw: %s\n", err)
		return
	}

	// Close the window at the end of main()
	defer glfw.CloseWindow()

	// Only swap buffer once/ draw cycle (30 or 60 fps)
	glfw.SetSwapInterval(1)
	glfw.SetWindowTitle(Title)

	// Apply those settings
	if err := gl.Init(); err != nil {
		fmt.Fprintf(os.Stderr, "gl: %s\n", err)
	}

	// While glfw.Opened is 1 (the window is open), keep swapping buffers
	for glfw.WindowParam(glfw.Opened) == 1 {

		glfw.SwapBuffers()
	}

	setCallbacks()

	// Initialize the openGL settings
	Initialize()
}

func main() {
	if e := glfw.Init(); e != nil {
		panic(e.Error())
	}

	defer glfw.Terminate()

	if e := glfw.OpenWindow(468, 320, 0, 0, 0, 0, 0, 0, glfw.Windowed); e != nil {
		panic(e.Error())
	}

	if gl.Init() != 0 {
		panic("GL Err")
	}

	glfw.SetKeyCallback(escHandler)

	loop()
}

func main() {
	log.Printf("Starting glfw window")

	err := glfw.Init()
	if err != nil {
		log.Fatalf("Error while starting glfw library: %v", err)
	}
	defer glfw.Terminate()

	err = glfw.OpenWindow(256, 256, 8, 8, 8, 0, 0, 0, glfw.Windowed)
	if err != nil {
		log.Fatalf("Error while opening glfw window: %v", err)
	}
	defer glfw.CloseWindow()

	glfw.SetSwapInterval(1) //vsync on

	glfw.SetWindowTitle("Colored Triangle")

	InitGL()

	glfw.SetWindowSizeCallback(func(w, h int) { InitGLWindow(w, h) })
	glfw.SetKeyCallback(func(key, state int) { HandleKey(key, state) })

	// create a mesh with 3 vertices (a triangle)
	m := &Mesh{make([]*Vector, 3)}
	m.V[0] = &Vector{0, 1, 0, color.NRGBA{1, 0, 0, 0}}
	m.V[1] = &Vector{-1, -1, 0, color.NRGBA{0, 1, 0, 0}}
	m.V[2] = &Vector{1, -1, 0, color.NRGBA{0, 0, 1, 0}}

	run := true
	for run && glfw.WindowParam(glfw.Opened) == 1 {
		select {
		case exitCode := <-exit:
			log.Printf("Received exit code: %d", exitCode)
			run = false
		default:
			Draw(m)
		}
	}
}