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() {
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 (v *Video) Init(t <-chan []uint32, d <-chan []uint32, n string) {
v.tick = t
v.debug = d
if err := glfw.Init(); err != nil {
fmt.Fprintf(os.Stderr, "[e] %v\n", err)
return
}
if err := glfw.OpenWindow(512, 480, 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")
}
gl.Enable(gl.TEXTURE_2D)
glfw.SetWindowTitle(fmt.Sprintf("Fergulator - %s", n))
glfw.SetWindowSizeCallback(reshape)
glfw.SetWindowCloseCallback(quit_event)
glfw.SetKeyCallback(KeyListener)
reshape(512, 480)
v.tex = gl.GenTexture()
v.fpsmanager = gfx.NewFramerate()
v.fpsmanager.SetFramerate(70)
}
func Open(w, h int, sWin string, fullscreen bool) *Window {
if GWindow != nil {
panic("only one Window is allowed")
}
listener.GListener = listener.New()
win := &Window{width: w, height: h, title: sWin, inputListener: listener.GListener}
GWindow = win
var err error
if err = glfw.Init(); err != nil {
panic(fmt.Sprintf("[e] %v\n", err))
}
mode := glfw.Windowed
if fullscreen {
mode = glfw.Fullscreen
}
if err = glfw.OpenWindow(win.width, win.height, 8, 8, 8, 0, 16, 0, mode); err != nil {
panic(fmt.Sprintf("[e] %v\n", err))
}
gl.Init() //WHY?? (shader creation fails when not)
glfw.SetSwapInterval(1) // Enable vertical sync on cards that support it.
glfw.SetWindowTitle(win.title) // Set window title
//CALLBACKS
glfw.SetWindowSizeCallback(func(w, h int) { GWindow.reshape(w, h) })
glfw.SetWindowCloseCallback(listener.OnClose)
glfw.SetMouseButtonCallback(listener.OnMouseButton)
glfw.SetMouseWheelCallback(listener.OnMouseWheel)
glfw.SetKeyCallback(listener.OnKey)
glfw.SetCharCallback(listener.OnChar)
win.initGL()
return win
}
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() {
log.Println("Starting")
flag.Parse()
runtime.GOMAXPROCS(4)
initGLFW()
initGL()
initScene()
initInput()
glfw.SetWindowSizeCallback(resize)
initLua()
// Run the script file if we had one
// TODO: Do this before accepting input from user...
if fScript != "" {
runFile(fScript)
}
for glfw.WindowParam(glfw.Opened) == 1 {
display()
glfw.SwapBuffers()
time.Sleep(10 * time.Millisecond)
}
}
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() {
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() {
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 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() {
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)
}
}
}
// Sets up input handlers
func InitInputHandlers() {
InitKeyHandlers()
glfw.SetMousePosCallback(func(x, y int) {
dx, dy := x-mousePrevX, y-mousePrevY
mousePrevX, mousePrevY = x, y
if mouseButton[0] == 0 {
return
}
Rot[0] += int(deltaLook * float64(dx))
Rot[1] += int(deltaLook * float64(dy))
// limit viewing angles
for i := range Rot {
if Rot[i] > 360 {
Rot[i] = 0
}
if Rot[i] < 0 {
Rot[i] += 360
}
}
log.Println("rot:", Rot)
})
glfw.SetMouseButtonCallback(func(button, state int) {
//log.Println("mousebutton:", button, state)
mouseButton[button] = state
})
glfw.SetMouseWheelCallback(func(delta int) {
//log.Println("mousewheel:", delta)
glfw.SetMouseWheel(0)
})
glfw.SetWindowSizeCallback(func(w, h int) {
Width, Height = w, h
InitViewport()
})
}
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() {
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 initWindow(caption string) {
//glfw stuff
err := glfw.Init()
if err != nil {
panic(err)
}
_w = 500
_h = 500
glfw.OpenWindowHint(glfw.OpenGLVersionMinor, 2)
glfw.OpenWindowHint(glfw.OpenGLVersionMajor, 3)
glfw.OpenWindowHint(glfw.OpenGLProfile, 0) //glfw.OpenGLCoreProfile)
err = glfw.OpenWindow(_w, _h, 0, 0, 0, 0, 0, 0, glfw.Windowed)
if err != nil {
panic(err)
}
glfw.SetWindowTitle(caption)
glfw.Disable(glfw.AutoPollEvents)
glfw.SetWindowSizeCallback(onResize)
}
func NewWindow(r Renderer) (*Window, error) {
w := &Window{r, time.Now()}
var err error
// Fail if the window is in use, even after its
// finalizer has had a change to run.
if busy {
runtime.GC()
runtime.GC()
if busy {
return nil, err
}
}
if err = glfw.Init(); err != nil {
goto abort_with_nothing
}
if err = glfw.OpenWindow(1024, 1024, 0, 0, 0, 0, 0, 0, glfw.Windowed); err != nil {
goto abort_with_glfw_init
}
if gl.Init() != 0 {
goto abort_with_open_window
}
glfw.SetWindowTitle(os.Args[0])
glfw.SetWindowSizeCallback(reshape)
glInit()
reshape(1024, 1024)
runtime.SetFinalizer(w, finalizeWindow)
busy = true
return w, nil
abort_with_open_window:
glfw.CloseWindow()
abort_with_glfw_init:
glfw.Terminate()
abort_with_nothing:
return nil, error(err)
}
func main() {
log.SetFlags(log.Lshortfile)
//parse flags
flag.Parse()
if flags.cpuprofile != "" {
f, err := os.Create(flags.cpuprofile)
if err != nil {
log.Fatal(err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
loadSettingsFile()
Settings.Paused = flags.startPaused
if flags.buildExamples {
allExamples()
return
}
wx, wy := 800, 600
//initialize opengl & glfw
{
//init glfw
if err := glfw.Init(); err != nil {
log.Printf("Error initializing glfw: %v\n", err)
return
}
defer glfw.Terminate()
//set window hints
glfw.OpenWindowHint(glfw.WindowNoResize, 1)
//create the window
if err := glfw.OpenWindow(wx, wy, 8, 8, 8, 8, 0, 8, glfw.Windowed); err != nil {
log.Printf("Error opening Window: %v\n", err)
return
}
defer glfw.CloseWindow()
//init opengl
if gl.Init() != 0 {
panic("gl error")
}
//glfw config
{
glfw.SetSwapInterval(1)
glfw.SetWindowTitle("mater test")
}
//set additional opengl stuff
{
gl.ClearColor(0, 0, 0, 0)
gl.Enable(gl.BLEND)
//gl.BlendFunc (gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA);
gl.Enable(gl.TEXTURE_2D)
}
}
//setup scene related stuff
{
//create empty space
space = collision.NewSpace()
}
//reload settings so they take effect
reloadSettings()
saveSettingsFile()
//set callbacks
{
glfw.SetWindowSizeCallback(OnResize)
glfw.SetKeyCallback(OnKey)
}
//init debug console
console.Init()
//load savefile passed from the commandline if any
if flags.file != "" {
err := loadSpace(flags.file)
Settings.Paused = true
if err != nil {
panic(err)
}
}
//if set to true once a second
printFPS := false
//fix timestep to given fps
const expectedFps = 30.0
const expectedFrameTime = 1.0 / expectedFps
//the time at the start of the last frame
lastTime := 0.0
acc := 0.0
updateAcc := 0.0
frameCount := 0
updateFrameCount := 0
fps := 0
updateFps := 0
Settings.Running = true
for Settings.Running && glfw.WindowParam(glfw.Opened) == 1 {
time := glfw.Time()
//get the time elapsed since the last frame
dt := time - lastTime
lastTime = time
//advance framecount and accumulators
frameCount++
acc += dt
updateAcc += dt
//execute console commands if any
select {
case command := <-console.Command:
console.ExecuteCommand(command)
default:
}
//update the scene at a fixed timestep
for updateAcc >= expectedFrameTime {
updateFrameCount++
//if one second has passed update the fps and reset the framecount
if acc > 1 {
updateFps = updateFrameCount
updateFrameCount = 0
}
//only update if not paused or if set to advance a single frame
if !Settings.Paused || Settings.SingleStep {
space.Step(expectedFrameTime)
Settings.SingleStep = false
}
updateAcc -= expectedFrameTime
}
//draw debug data
Draw()
glfw.SwapBuffers()
//if one second has passed update the fps and reset the framecount
if acc > 1 {
fps = frameCount
frameCount = 0
if printFPS {
fmt.Printf("---\n")
fmt.Printf("FPS: %v\n", fps)
fmt.Printf("Update FPS: %v\n", updateFps)
fmt.Printf("Average frametime: %v\n", acc/float64(fps))
fmt.Printf("---\n")
}
acc -= 1
}
}
}
func setCallbacks() {
glfw.SetWindowSizeCallback(handleResize)
glfw.SetWindowCloseCallback(Cleanup)
}
func (w *window) SetSizeCallback(f func(int, int)) {
glfw.SetWindowSizeCallback(func(width, height int) {
f(width, height)
})
}
func main() {
w := 500
h := 500
fov := 45.0
clip_min := 0.1
clip_max := 1000.0
aspect_ratio := float64(w) / float64(h)
glfw.Init()
glfw.OpenWindow(w, h, 8, 8, 8, 8, 8, 0, glfw.Windowed)
glfw.SetWindowTitle("Shader Test")
glfw.SetWindowSizeCallback(resize_window)
glfw.SetKeyCallback(key_callback)
gl.ClearColor(0.3, 0.3, 0.3, 1.0)
gl.ShadeModel(gl.SMOOTH)
size_window(w, h, fov, aspect_ratio, clip_min, clip_max)
//Testing sprites
test_sprite := sprite{height: 1.0, width: 1.0}
test_sprite.tex = texture("./assets/hedge.gif")
test_sprite.Y = 3
new_guy := sprite{height: 0.5, width: 0.5}
new_guy.tex = texture("./assets/red2.png")
new_guy.Y = 5
renderees := new(list.List)
renderees.PushBack(&new_guy)
renderees.PushBack(&test_sprite)
my_camera.init(Vector{0.0, -1.0, 0.0})
my_camera.front = Vector{0.0, 1.0, 0.0}
my_camera.top = Vector{0.0, 0.0, 1.0}
//End testing sprites
physics_objects := new(list.List)
physics_objects.PushBack(my_camera)
dt, err := time.ParseDuration("16.67ms")
if err != nil {
die(err)
}
fmt.Println("Timestep: ", dt)
var t float64 = 0
running := true
for running {
t0 := time.Now()
update(physics_objects, float64(dt.Nanoseconds())/1e6)
t += 0.025
new_guy.X = math.Cos(t)
new_guy.Y = math.Sin(t) + 3.0
//my_camera.point_at(Vector{new_guy.X, new_guy.Y, new_guy.Z})
general_render(renderees, my_camera)
glfw.SwapBuffers()
dt = time.Since(t0)
rate := time.Microsecond * 16670
if dt < rate {
time.Sleep((rate - dt))
//fmt.Println("This frame took", float64(dt.Nanoseconds())/1000000, "ms to render.")
}
running = glfw.Key(glfw.KeyEsc) == 0 && glfw.WindowParam(glfw.Opened) != 0
}
}
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, 8, 0, glfw.Windowed)
if err != nil {
fmt.Printf("GLFW: %s\n", err)
return
}
defer glfw.CloseWindow()
glfw.SetWindowTitle(WindowTitle)
glfw.SetWindowSizeCallback(onResize)
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.Enable(gl.DEPTH_TEST)
//gl.DepthFunc(gl.LESS)
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
angle := float32(glfw.Time())
anim := math3d.MakeYRotationMatrix(angle)
model := math3d.MakeTranslationMatrix(0, 0, -4)
view := math3d.MakeLookAtMatrix(math3d.Vector3{0, 2, 0}, math3d.Vector3{0, 0, -4}, math3d.Vector3{0, 1, 0})
projection := math3d.MakePerspectiveMatrix(45, float32(ScreenWidth)/float32(ScreenHeight), 0.1, 10.0)
matrix = math3d.MakeIdentity().Multiply(projection).Multiply(view).Multiply(model).Multiply(anim)
program.Use()
uniformMTransform.UniformMatrix4fv(1, false, matrix.Transposed())
display()
}
// Free resources
free()
runtime.UnlockOSThread()
}