// this is the render function. It contains flags to set up the differnt shaders and what
// to draw. One can remove most of is not all of theem
void renderFun() {
// DEBUGGING FLAGS
static int drawTri = 1;
static int drawSkybox = 1;
static int drawLines = 0;
static Vector3f pos=Vector3f(0,0,100);
static Vector3f lookat=Vector3f(0 ,0 ,0);
static Vector3f up=Vector3f(0,1,0);
static int zoom = -70;
static int camZoom = 1;
static int setCam = 0;
// setting up the camera manually if needed
// can be remved
if (setCam) {
cam.setCamera(pos, lookat, up);
setCam = 0;
}
// setting up the camera zoom manually if needed
// can be remved
if (camZoom) {
cam.zoomIn(zoom);
camZoom = 0;
}
// setting opengl - clearing the buffers
glEnable(GL_DEPTH_TEST); // need depth test to correctly draw 3D objects
glClearColor(1.0,1.0,1.0,1);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
if (drawSkybox) {
skybox.displaySkybox(cam);
}
if (drawTri) {
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
displayBoxFun(sphereBoxProg);
}
// if (drawLines) {
// glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
// displayBoxFun(sphereLinesBoxProg);
// }
glutSwapBuffers();
}
int main(int argc, char** argv) {
int rc;
Shader s;
// set the camera to an initial position
cam.setCamera(Vector3f(0,-10,100), Vector3f(0,0,0), Vector3f(0,1,0));
glutInit(&argc, argv);
// glutInitDisplayMode(GLUT_RGBA|GLUT_DOUBLE|GLUT_DEPTH|GLUT_3_2_CORE_PROFILE);
glutInitDisplayMode(GLUT_RGBA|GLUT_DOUBLE|GLUT_DEPTH);
glutInitWindowSize(600,600);
glutInitWindowPosition(10, 10);
glutCreateWindow("skybox");
glutDisplayFunc(renderFun);
glutIdleFunc(idleFun);
// setCallbackFun();
// initialize GLEW
// GLenum err = glewInit();
// if ( err != GLEW_OK) printf(" Error initializing GLEW! \n");
loadTextures();
skybox.init();
// skybox2.init();
Init_Geometry();
InitVBO();
rc = loadShaders(s);
if (rc != 0) {
printf("error after createing shaders rc = %d \n", rc);
getchar();
}
glutMainLoop();
}