void Demo3::initShaders()
{
addResPath("shaders/");
initShaderProgram("simple_v3_c4.vert", "simple_v3_c4.frag", 0);
initShaderProgram("lambert_v3_c4_n3.vert", "lambert_v3_c4_n3.frag", 0);
initShaderProgram("phong_v3_v4_n3.vert", "phong_v3_v4_n3.frag", 0);
resetResPath();
}
void billboard_tech::init(){
//load and compile shaders
loadShaders();
//link all shaders together
initShaderProgram();
//get the variables from the shaders
initShaderLocations();
//create the VAO
glUseProgram(program);
}
void grass_tech::init(){
//load and compile shaders
loadShaders();
//link all shaders together
initShaderProgram();
//get the variables from the shaders
initShaderLocations();
tex = new Texture("../bin/terrain/grass.png", GL_TEXTURE_2D);
pathTex = new Texture("../bin/terrain/path3.jpg", GL_TEXTURE_2D);
//create the VAO
glUseProgram(program);
}
void initOpenGL()
{
glfwSetErrorCallback(error_callback);
if (!glfwInit()) {
printf("Failed to initialize GLFW\n");
exit(EXIT_FAILURE);
}
window = glfwCreateWindow(windowWidth, windowHeight, "OpenGL", NULL, NULL);
if (!window) {
printf("Could not open window with GLFW\n");
glfwTerminate();
exit(EXIT_FAILURE);
}
glfwMakeContextCurrent(window);
// Callbacks
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
glfwSetWindowCloseCallback(window, window_close_callback);
glfwSetKeyCallback(window, key_callback);
glfwSetCursorPosCallback(window, cursor_pos_callback);
glfwSetMouseButtonCallback(window, mouse_button_callback);
// start GLEW extension handler
glewInit();
if (glewInit() != GLEW_OK) {
printf("Failed to initialize GLEW\n");
exit(EXIT_FAILURE);
}
glEnable(GL_DEPTH_TEST); // enable depth-testing
trackball(curquat, 0.0f, 0.0f, 0.0f, 0.0f);
glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
program = initShaderProgram();
}
