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() {
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(640, 480, 8, 8, 8, 8, 0, 0, glfw.Windowed); err != nil {
fmt.Fprintf(os.Stderr, "[e] %v\n", err)
return
}
defer glfw.CloseWindow()
glfw.SetWindowTitle("Draw")
glfw.SetSwapInterval(1)
glfw.SetKeyCallback(onKey)
glfw.SetMouseButtonCallback(onMouseBtn)
glfw.SetWindowSizeCallback(onResize)
running = true
for running && glfw.WindowParam(glfw.Opened) == 1 {
if mouse[0] != 0 {
pen.lineTo(glfw.MousePos())
} else {
pen.moveTo(glfw.MousePos())
}
glfw.SwapBuffers()
}
}
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() {
var err error
if err = glfw.Init(); err != nil {
fmt.Fprintf(os.Stderr, "[e] %v\n", err)
return
}
defer glfw.Terminate()
// Open window with FSAA samples (if possible).
glfw.OpenWindowHint(glfw.FsaaSamples, 4)
if err = glfw.OpenWindow(400, 400, 0, 0, 0, 0, 0, 0, glfw.Windowed); err != nil {
fmt.Fprintf(os.Stderr, "[e] %v\n", err)
return
}
defer glfw.CloseWindow()
glfw.SetWindowTitle("Aliasing Detector")
glfw.SetSwapInterval(1)
if samples := glfw.WindowParam(glfw.FsaaSamples); samples != 0 {
fmt.Fprintf(os.Stdout, "Context reports FSAA is supported with %d samples\n", samples)
} else {
fmt.Fprintf(os.Stdout, "Context reports FSAA is unsupported\n")
}
gl.MatrixMode(gl.PROJECTION)
glu.Perspective(0, 1, 0, 1)
for glfw.WindowParam(glfw.Opened) == 1 {
time := float32(glfw.Time())
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.LoadIdentity()
gl.Translatef(0.5, 0, 0)
gl.Rotatef(time, 0, 0, 1)
gl.Enable(GL_MULTISAMPLE_ARB)
gl.Color3f(1, 1, 1)
gl.Rectf(-0.25, -0.25, 0.25, 0.25)
gl.LoadIdentity()
gl.Translatef(-0.5, 0, 0)
gl.Rotatef(time, 0, 0, 1)
gl.Disable(GL_MULTISAMPLE_ARB)
gl.Color3f(1, 1, 1)
gl.Rectf(-0.25, -0.25, 0.25, 0.25)
glfw.SwapBuffers()
}
}
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 main() {
var err os.Error
err = glfw.Init()
if err != nil {
fmt.Printf("GLFW: %s\n", err)
return
}
defer glfw.Terminate()
glfw.OpenWindowHint(glfw.WindowNoResize, 1)
glfw.OpenWindowHint(glfw.OpenGLDebugContext, 1)
// 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()
for {
display()
}
// Free resources
free()
}
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() {
fmt.Println("OpenGL Programming/Modern OpenGL Introduction")
fmt.Println("Tutorial taken from http://en.wikibooks.org/wiki/OpenGL_Programming/Modern_OpenGL_Introduction")
var err error
err = glfw.Init()
if err != nil {
fmt.Printf("GLFW: %s\n", err)
return
}
defer glfw.Terminate()
glfw.OpenWindowHint(glfw.OpenGLVersionMajor, 3)
glfw.OpenWindowHint(glfw.OpenGLVersionMinor, 3)
glfw.OpenWindowHint(glfw.OpenGLProfile, 1)
err = glfw.OpenWindow(ScreenWidth, ScreenHeight, 0, 0, 0, 0, 0, 0, glfw.Windowed)
if err != nil {
fmt.Printf("GLFW: %s\n", err)
return
}
defer glfw.CloseWindow()
glfw.SetWindowTitle(WindowTitle)
// Init extension loading
err = gl.Init()
if err != nil {
fmt.Printf("Init OpenGL extension loading failed with %s.\n", err)
}
initResources()
// Render loop
for glfw.WindowParam(glfw.Opened) == 1 {
display()
}
// Free resources
free()
}
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)
}
}
}
func main() {
// Set width and height.
WIDTH := 960
HEIGHT := 720
// Open up a Window (that would potentially be used for OpenGL) with glfw
if err := glfw.Init(); err != nil {
// Error.
fmt.Fprintf(os.Stderr, "Error: %v\n", err)
return
}
defer glfw.Terminate()
if err := glfw.OpenWindow(WIDTH, HEIGHT, 0, 0, 0, 0, 0, 0, glfw.Windowed); err != nil {
// Error.
fmt.Fprintf(os.Stderr, "Error: %v\n", err)
return
}
glfw.SetWindowTitle("LifePack")
// Initialize.
// Initialize (pseudo) random number generator (used in other files).
rand.Seed(time.Now().Unix())
// We need a way for the user to exit the program.
// This will be accomplished by making it so, when the user presses
// the [ESC] key, that the program exists.
//
// The keyHandler function makes this happen, and will exit this
// program if [ESC] is pressed.
glfw.SetKeyCallback(keyHandler)
// Set up OpenGL in a way that we can do 2D graphics (as opposed to 3D graphics).
initialize(WIDTH, HEIGHT)
// Run.
run(WIDTH, HEIGHT)
}
func main() {
var err os.Error
if err = glfw.Init(); err != nil {
fmt.Fprintf(os.Stderr, "%v\n", err)
return
}
// Ensure glfw is cleanly terminated on exit.
defer glfw.Terminate()
if err = glfw.OpenWindow(300, 300, 0, 0, 0, 0, 0, 0, glfw.Windowed); err != nil {
fmt.Fprintf(os.Stderr, "%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")
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() {
flag.Parse()
var done bool
var err os.Error
if err = glfw.Init(); err != nil {
fmt.Fprintf(os.Stderr, "[e] %v\n", err)
return
}
defer glfw.Terminate()
if err = glfw.OpenWindow(300, 300, 0, 0, 0, 0, 0, 0, glfw.Windowed); err != nil {
fmt.Fprintf(os.Stderr, "[e] %v\n", err)
return
}
if gl.Init() != 0 {
panic("gl error")
}
defer glfw.CloseWindow()
glfw.SetWindowTitle("gears")
glfw.SetWindowSizeCallback(reshape)
init_()
reshape(300, 300)
done = false
for !done {
idle()
draw()
done = glfw.Key(glfw.KeyEsc) != 0 || glfw.WindowParam(glfw.Opened) == 0
}
}
func main() {
runtime.GOMAXPROCS(runtime.NumCPU())
flag.Parse()
if *flagListRules {
for _, name := range automata.Rulers() {
fmt.Println(name)
}
return
}
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, 0, 0, glfw.Windowed); err != nil {
log.Fatal(err)
}
defer glfw.CloseWindow()
glfw.SetSwapInterval(1)
glfw.SetWindowTitle(Title)
if err := gl.Init(); err != nil {
log.Fatal(err)
}
initScene()
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
}
path, err := gas.Abs("github.com/andrebq/wfobj/testdata/complex/complex.obj")
if err != nil {
fmt.Fprintf(os.Stderr, "[e] %v\n", err)
return
}
mesh, err = wfobj.LoadMeshFromFile(path)
if 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 setupWindow(width int, height int, fullscreen bool) bool {
// Create OpenGL window
var windowType int
if fullScreen {
windowType = glfw.Fullscreen
} else {
windowType = glfw.Windowed
}
if err := glfw.OpenWindow(width, height, 8, 8, 8, 8, 24, 8, windowType); err != nil {
glfw.Terminate()
return false
}
// Disable vertical synchronization
glfw.SetSwapInterval(0)
// Set listeners
glfw.SetWindowCloseCallback(windowCloseListener)
glfw.SetKeyCallback(keyPressListener)
glfw.SetMousePosCallback(mouseMoveListener)
return true
}