glut

I'm working on a project using PyOpenGL, and I'm currently attempting to get OpenGL to render a kind of splash screen. My decided solution to this is to draw a textured 2D rectangle. Unfortunately, it appears that no matter what I do, nothing is ever drawn, I just get a black screen (So I guess something is drawn, otherwise it would be a transparent window, but it's definitely not what I want). Here is the pertinent code for my class: class ClassThing: def __init__(self): self.Splash = True glutInit(sys.argv) def TexFromPNG(self, filename): img = Image.open(filename) img_data = numpy.array

I have an OpenGL project which uses GLUT (not freeglut) wherein I would like to display 2D text on the viewport at a fixed location. The rest of my objects are in 3D world co-ordinates. This answer to a related old question says that, the bitmap fonts which ship with GLUT are simple 2D fonts and are not suitable for display inside your 3D environment. However, they're perfect for text that needs to be overlayed on the display window. I've tried the approach outlined in the accepted answer, but it does not give me the desired output. Following is a code snippet of the display function: void

I'm trying to build a very simple OpenGL-app under Ubuntu 10.04 (I have a 32 bit system). When I'm trying to compile the file, I get the error message: g++ -L/usr/lib simple.cpp -lglut /usr/bin/ld: /tmp/ccoPczAo.o: undefined reference to symbol 'glEnd' /usr/bin/ld: note: 'glEnd' is defined in DSO //usr/lib/libGL.so.1 so try adding it to the linker command line //usr/lib/libGL.so.1: could not read symbols: Invalid operation collect2: ld returned 1 exit status Does anybody know what I'm doing wrong? You need to include the opengl library on the command line as well as the glut library/. Try

I'm really having trouble closing my console application with FreeGLUT. I would like to know what the best way is to take every possible closing, because I don't want any memory leaks (I'm pretty afraid of those). So I already tried the following, which is giving me an exception like this: First-chance exception at 0x754e6a6f in myProject.exe: 0x40010005: Control-C. int main(int argc, char **argv) { if( SetConsoleCtrlHandler( (PHANDLER_ROUTINE) CtrlHandler, true) ) { // more code here as well .... glutCloseFunc(close); // set the window closing function of opengl glutMainLoop(); close(); //

i just started off using OpenGL and it seems it is not easy to understand the working of the glutMainLoop() what really happens there? Does it stay there doing nothing till any of the function calls responds? It calls your display callback over and over, calling idle between so that it can maintain a specific framerate if possible, and others if necessary (such as if you resize the window or trigger an input event). Essentially, within this function is the main program loop, where GLUT does most of the work for you and allows you to simply set up the specific program logic in these callbacks.

i'm making a car race for the first time using opengl,the first problem i face is how to make the camera follow the car with constant distance..here is the code for keyboard function.V is the velocity of the car. void OnSpecial(int key, int x, int y) { float step = 5; switch(key) { case GLUT_KEY_LEFTa: carAngle = step; V.z = carAngle ; camera.Strafe(-step/2); break; case GLUT_KEY_RIGHT: carAngle = -step; V.z = carAngle ; camera.Strafe(step/2); break; case GLUT_KEY_UP: V.x += (-step); camera.Walk(step/2); break; case GLUT_KEY_DOWN: if(V.x<0) { V.x += step; camera.Walk(-step/2); } break; } }