func main() {
err := glfw.Init()
if err != nil {
panic(err)
}
defer glfw.Terminate()
w, err := glfw.CreateWindow(640, 480, "Testing 3+", nil, nil)
if err != nil {
panic(err)
}
w.MakeContextCurrent()
glfw.SwapInterval(1)
w.SetCharCallback(charCallBack)
if err := gl.Init(); err != nil {
panic(err)
}
r := makeResources()
gl.ClearColor(.5, .5, .5, 0)
fmt.Println("Press 'q' to quit")
for !w.ShouldClose() {
time.Sleep(10 * time.Millisecond)
render(w, r)
w.SwapBuffers()
glfw.PollEvents()
}
}
func (glr *GlRenderer) initSystem() {
// Lock goroutine to main thread - required for GL
runtime.LockOSThread()
var err error
if err = glfw.Init(); err != nil {
panic(err)
}
glfw.WindowHint(glfw.Resizable, glfw.False)
glfw.WindowHint(glfw.ContextVersionMajor, 3)
glfw.WindowHint(glfw.ContextVersionMinor, 3)
glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
glfw.WindowHint(glfw.OpenGLForwardCompatible, glfw.True)
glr.window, err = glfw.CreateWindow(glr.width, glr.height, "rt", nil, nil)
if err != nil {
panic(err)
}
glr.window.MakeContextCurrent()
if err = gl.Init(); err != nil {
panic(err)
}
version := gl.GoStr(gl.GetString(gl.VERSION))
fmt.Println("OpenGL version", version)
}
func CreateRenderer(windowWidth, windowHeight int) *Renderer {
if err := glfw.Init(); err != nil {
log.Fatalln("failed to initialize glfw:", err)
}
// defer glfw.Terminate()
glfw.WindowHint(glfw.Resizable, glfw.False)
glfw.WindowHint(glfw.ContextVersionMajor, 4)
glfw.WindowHint(glfw.ContextVersionMinor, 1)
glfw.WindowHint(glfw.OpenGLProfile, glfw.OpenGLCoreProfile)
glfw.WindowHint(glfw.OpenGLForwardCompatible, glfw.True)
if windowWidth == 0 && windowHeight == 0 {
windowWidth, windowHeight = glfw.GetPrimaryMonitor().GetPhysicalSize()
}
fmt.Println("Window Width -", windowWidth, "Window Height -", windowHeight)
window, err := glfw.CreateWindow(windowWidth, windowHeight, "Karma", glfw.GetPrimaryMonitor(), nil)
if err != nil {
panic(err)
}
window.MakeContextCurrent()
window.SetKeyCallback(testCallback)
// Initialize Glow
if err := gl.Init(); err != nil {
panic(err)
}
version := gl.GoStr(gl.GetString(gl.VERSION))
fmt.Println("OpenGL version", version)
shaders := Shaders{}
textureFlatUniforms := []string{"projection", "camera", "modelView", "tex"}
textureFlatAttributes := []string{"vert", "vertTexCoord"}
fmt.Println(textureFlatUniforms)
fmt.Println(textureFlatAttributes)
shader, err := createProgram("./assets/shaders/texture_flat.vs", "./assets/shaders/texture_flat.fs", textureFlatUniforms, textureFlatAttributes)
if err != nil {
panic(err)
}
shaders.textureFlat = shader
meshes := []*Mesh{}
previousTime := glfw.GetTime()
return &Renderer{
PreviousTime: previousTime,
Window: window,
Shaders: &shaders,
Meshes: meshes,
}
}
func main() {
err := glfw.Init()
if err != nil {
panic(err)
}
defer glfw.Terminate()
glfw.WindowHint(glfw.Resizable, glfw.False)
w, err := glfw.CreateWindow(400, 300, "Hello World", nil, nil)
if err != nil {
panic(err)
}
w.MakeContextCurrent()
glfw.SwapInterval(1)
w.SetCharCallback(charCallBack)
if err := gl.Init(); err != nil {
panic(err)
}
r := makeResources()
gl.ClearColor(1, 1, 1, 0)
fmt.Println("Press 'q' to quit")
for !w.ShouldClose() {
time.Sleep(10 * time.Millisecond)
updateFadeFactor(r)
render(w, r)
w.SwapBuffers()
glfw.PollEvents()
}
}
//
// Create Window
// This creates a window, initiates GL and sets the event listeners
//
// @return window (*glfw.Window) pointer to the window
//
func (glw *Glw) CreateWindow() *glfw.Window {
// Init GLFW
if err := glfw.Init(); err != nil {
log.Fatalln("failed to initialize glfw:", err)
}
// Sets the OpenGL Version
setOpenGlVersion()
// Creates the Window
win, err := glfw.CreateWindow(glw.Width, glw.Height, glw.Title, nil, nil)
if err != nil {
panic(err)
}
// Prints the OpenGL Versions at the end
defer printOpenGlVersionInfo()
// Sets this context as the current context
win.MakeContextCurrent()
// Initiates GL
if err := gl.Init(); err != nil {
panic(err)
}
// Enables Depth
gl.Enable(gl.DEPTH_TEST)
gl.DepthFunc(gl.LESS)
win.SetInputMode(glfw.StickyKeysMode, 1)
// Sets the Window to the Wrapper
glw.SetWindow(win)
return win
}