// the program starts here
void AppMain() {
// initialise GLFW
glfwSetErrorCallback(OnError);
if(!glfwInit())
throw std::runtime_error("glfwInit failed");
// open a window with GLFW
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
gWindow = glfwCreateWindow((int)SCREEN_SIZE.x, (int)SCREEN_SIZE.y, "OpenGL Tutorial", NULL, NULL);
if(!gWindow)
throw std::runtime_error("glfwCreateWindow failed. Can your hardware handle OpenGL 3.2?");
// GLFW settings
glfwMakeContextCurrent(gWindow);
// initialise GLEW
glewExperimental = GL_TRUE; //stops glew crashing on OSX :-/
if(glewInit() != GLEW_OK)
throw std::runtime_error("glewInit failed");
// print out some info about the graphics drivers
std::cout << "OpenGL version: " << glGetString(GL_VERSION) << std::endl;
std::cout << "GLSL version: " << glGetString(GL_SHADING_LANGUAGE_VERSION) << std::endl;
std::cout << "Vendor: " << glGetString(GL_VENDOR) << std::endl;
std::cout << "Renderer: " << glGetString(GL_RENDERER) << std::endl;
// make sure OpenGL version 3.2 API is available
if(!GLEW_VERSION_3_2)
throw std::runtime_error("OpenGL 3.2 API is not available.");
// OpenGL settings
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// load vertex and fragment shaders into opengl
LoadShaders();
// load the texture
LoadTexture();
// create buffer and fill it with the points of the triangle
LoadTriangle();
// run while the window is open
while(!glfwWindowShouldClose(gWindow)){
// process pending events
glfwPollEvents();
// draw one frame
Render();
}
// clean up and exit
glfwTerminate();
}
void AppMain() {
if(!glfwInit())
throw std::runtime_error("glfwInit failed");
glfwOpenWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwOpenWindowHint(GLFW_OPENGL_VERSION_MAJOR, 3);
glfwOpenWindowHint(GLFW_OPENGL_VERSION_MINOR, 2);
glfwOpenWindowHint(GLFW_WINDOW_NO_RESIZE, GL_FALSE);
if(!glfwOpenWindow(SCREEN_SIZE.x, SCREEN_SIZE.y, 8, 8, 8, 8, 0, 0, GLFW_WINDOW))
throw std::runtime_error("glfwOpenWindow failed. Can your hardware handle OpenGL 3.2?");
glewExperimental = GL_TRUE; //stops glew crashing on OSX :-/
if(glewInit() != GLEW_OK)
throw std::runtime_error("glewInit failed");
std::cout << "OpenGL version: " << glGetString(GL_VERSION) << std::endl;
std::cout << "GLSL version: " << glGetString(GL_SHADING_LANGUAGE_VERSION) << std::endl;
std::cout << "Vendor: " << glGetString(GL_VENDOR) << std::endl;
std::cout << "Renderer: " << glGetString(GL_RENDERER) << std::endl;
if(!GLEW_VERSION_3_2)
throw std::runtime_error("OpenGL 3.2 API is not available.");
glfwDisable(GLFW_MOUSE_CURSOR);
glfwSetMousePos(0,0);
glfwSetMouseWheel(0);
LoadShaders();
LoadTriangle();
//intialise the Camera position
gCamera.setPosition(glm::vec3(0,0,4));
gCamera.setViewportAspectRatio(SCREEN_SIZE.x / SCREEN_SIZE.y);
gCamera.setNearAndFarPlanes(0.5, 100.0f);
Axis = glm::vec3(0,1,0);
//intialise the Light attribute
gLight.position = glm::vec3(0.0f,0.1f,-0.1f);
gLight.intensities = glm::vec3(0.8,0.78,1); // white light
gLight.attenuation = 0.2f;
gLight.ambientCoefficient = 0.005f;
double lastTime = glfwGetTime();
while(glfwGetWindowParam(GLFW_OPENED)){
double thisTime = glfwGetTime();
Update(thisTime - lastTime);
lastTime = thisTime;
Render();
}
glfwTerminate();
}
// the program starts here
void MainAppFunc() {
// initialise GLFW
if(!glfwInit())
throw std::runtime_error("glfwInit failed");
// open a window with GLFW
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint(GLFW_RESIZABLE, GL_TRUE);
MainWindow = glfwCreateWindow((int)SCREEN_SIZE.x, (int)SCREEN_SIZE.y,"Draw Basic Shapes",NULL,NULL);
if(!MainWindow)
throw std::runtime_error("glfwOpenWindow failed. Can your hardware handle OpenGL 4.2?");
// GLFW settings
glfwMakeContextCurrent(MainWindow);
// initialise GLEW
glewExperimental = GL_TRUE; //stops glew crashing on OSX :-/
if(glewInit() != GLEW_OK)
throw std::runtime_error("glewInit failed");
// print out some info about the graphics drivers
std::cout << "OpenGL version: " << glGetString(GL_VERSION) << std::endl;
std::cout << "GLSL version: " << glGetString(GL_SHADING_LANGUAGE_VERSION) << std::endl;
std::cout << "Vendor: " << glGetString(GL_VENDOR) << std::endl;
std::cout << "Renderer: " << glGetString(GL_RENDERER) << std::endl;
// make sure OpenGL version 3.2 API is available
if(!GLEW_VERSION_4_2)
throw std::runtime_error("OpenGL 4.2 API is not available.");
// load vertex and fragment shaders into opengl
//LoadShaders();
if(!createShaderProgram())
{
std::cerr << "Could not create the shaders";
}
// create buffer and fill it with the points of the triangle
LoadTriangle();
// run while the window is open
while(!glfwWindowShouldClose(MainWindow)){
// process pending events
glfwPollEvents();
// draw one frame
Render(MainWindow);
}
// clean up and exit
glfwTerminate();
}
// the program starts here
void AppMain() {
// initialise GLFW
if(!glfwInit())
throw std::runtime_error("glfwInit failed");
// open a window with GLFW
glfwOpenWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwOpenWindowHint(GLFW_OPENGL_VERSION_MAJOR, 3);
glfwOpenWindowHint(GLFW_OPENGL_VERSION_MINOR, 2);
glfwOpenWindowHint(GLFW_WINDOW_NO_RESIZE, GL_TRUE);
if(!glfwOpenWindow((int)SCREEN_SIZE.x, (int)SCREEN_SIZE.y, 8, 8, 8, 8, 0, 0, GLFW_WINDOW))
throw std::runtime_error("glfwOpenWindow failed. Can your hardware handle OpenGL 3.2?");
// initialise GLEW
glewExperimental = GL_TRUE; //stops glew crashing on OSX :-/
if(glewInit() != GLEW_OK)
throw std::runtime_error("glewInit failed");
// print out some info about the graphics drivers
std::cout << "OpenGL version: " << glGetString(GL_VERSION) << std::endl;
std::cout << "GLSL version: " << glGetString(GL_SHADING_LANGUAGE_VERSION) << std::endl;
std::cout << "Vendor: " << glGetString(GL_VENDOR) << std::endl;
std::cout << "Renderer: " << glGetString(GL_RENDERER) << std::endl;
// make sure OpenGL version 3.2 API is available
if(!GLEW_VERSION_3_2)
throw std::runtime_error("OpenGL 3.2 API is not available.");
// OpenGL settings
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// load vertex and fragment shaders into opengl
LoadShaders();
// load the texture
LoadTexture();
// create buffer and fill it with the points of the triangle
LoadTriangle();
// run while the window is open
while(glfwGetWindowParam(GLFW_OPENED)){
// draw one frame
Render();
}
// clean up and exit
glfwTerminate();
}
Asset::Asset(Shape s, Texture* tex, Program* prog)
{
program = prog;
texture = tex;
shape = s;
switch(shape){
case Triangle:
LoadTriangle();
break;
case Cube:
LoadCube();
break;
}
}
int main(int argc, char **argv)
{
Initialize(argc, argv);
InitializeUI();
glutReshapeFunc(ResizeFunction);
glutDisplayFunc(RenderFunction);
glutIdleFunc(RenderFunction);
glewInit();
programID = LoadShaders("shader.vert", "shader.frag");
LoadTriangle();
CreateGeometry();
glutMainLoop();
TwTerminate();
}
// the program starts here
void MainApplication() {
// initialise GLFW
if(!glfwInit())
throw std::runtime_error("glfwInit failed");
// open a window with GLFW
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint(GLFW_RESIZABLE, GL_TRUE);
MainWindow = glfwCreateWindow((int)SCREEN_SIZE.x, (int)SCREEN_SIZE.y,"Rotation",NULL,NULL);
if(!MainWindow)
throw std::runtime_error("glfwOpenWindow failed. Can your hardware handle OpenGL 4.2?");
glfwSetWindowSizeCallback(MainWindow,handleResize); //callback function of GLFW to handle window resize
glfwSetKeyCallback(MainWindow,handleKeypress); //callback function to handle keypress
glfwMakeContextCurrent(MainWindow);
// initialise GLEW
glewExperimental = GL_TRUE; //stops glew crashing on OSX :-/
if(glewInit() != GLEW_OK)
throw std::runtime_error("glewInit failed");
// print out some info about the graphics drivers
std::cout << "OpenGL version: " << glGetString(GL_VERSION) << std::endl;
std::cout << "GLSL version: " << glGetString(GL_SHADING_LANGUAGE_VERSION) << std::endl;
std::cout << "Vendor: " << glGetString(GL_VENDOR) << std::endl;
std::cout << "Renderer: " << glGetString(GL_RENDERER) << std::endl;
// make sure OpenGL version 3.2 API is available
if(!GLEW_VERSION_4_2)
throw std::runtime_error("OpenGL 4.2 API is not available.");
// load vertex and fragment shaders into opengl
LoadShaders();
// create buffer and fill it with the points of the triangle
LoadTriangle();
// run while the window is open
double lastTime = glfwGetTime();
while(!glfwWindowShouldClose(MainWindow)){
// update the scene based on the time elapsed since last update
double thisTime = glfwGetTime();
Update(thisTime - lastTime);
lastTime = thisTime;
// process pending events
glfwPollEvents();
// draw one frame
Render(MainWindow);
// check for errors
GLenum error = glGetError();
if(error != GL_NO_ERROR)
std::cerr << "OpenGL Error " << error /*<< ": " << (const GLubyte)gluErrorString(error)*/ << std::endl;
}
// clean up and exit
glfwTerminate();
}
