glut

问题 Yesterday I asked: How could simply calling Pitch and Yaw cause the camera to roll? Basically, I found out because of "Gimbal Lock" that if you pitch + yaw you will inevitably produce a rolling effect. For more information you can read that question. I'm trying to stop this from happening. When you look around in a normal FPS shooter you don't have your camera rolling all over the place! Here is my current passive mouse func: int windowWidth = 640; int windowHeight = 480; int oldMouseX = -1;

问题 I am taking a computer graphics class that teaches us how to use OpenGL with the glut libraries. I have an idea for a final project that involves lighting and textures being put on a dinosaur model that I found online. My first step is to simplify the existing online code so I can begin working on my project. Unfortunately, the online code for this model is broken, and I cannot seem to figure it out. I am not sure what gluTessCallback does, but my program is very upset with two lines of this

问题 I have code from the OpenGLBook (openglbook.com) which compiles, but does not load. I have absolutely no idea why it's not loading. The code is as follows: main.cpp #include "main.h" /// Methods /// ----------------------------- int main(int argc, char* argv[]) { Initialize(argc, argv); glutMainLoop(); exit(EXIT_SUCCESS); } main.h #ifndef main_h #define main_h #include <cstdlib> #include <cstdio> #include <cstring> #include <GL/glew.h> #include <GL/freeglut.h> #define WINDOW_TITLE_PREFIX

问题 I am writing a simple glut Application, and my teacher wants me to create a top menu bar, as in any windows app(you know, file\edit etc, the ruler on the window's top). I looked in glut documentation and googled, all I can find is a popup menu that opens with mouse's right button - not what was defined. 回答1: GLUT library provide service like creating window, callback functions, timer, mouse event and key press. But you want to make window menu bar for which GLUT does not provide the built in

问题 I am writing a simple glut Application, and my teacher wants me to create a top menu bar, as in any windows app(you know, file\edit etc, the ruler on the window's top). I looked in glut documentation and googled, all I can find is a popup menu that opens with mouse's right button - not what was defined. 回答1: GLUT library provide service like creating window, callback functions, timer, mouse event and key press. But you want to make window menu bar for which GLUT does not provide the built in

问题 I tried a lot of examples for loading and displaying images in openGL using SOIL. while running the source code below, it displays just a wite quad without an image. I tried to open an image called: foto. I placed the image-file in the folder of the program. bool* keyStates = new bool[256]; GLuint texture[0]; void resize(int height, int width) { const float ar = (float) width / (float) height; glViewport(0, 10, width, height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); glFrustum(-ar, ar,

问题 i'm using OpenGL 3.2 and GLUT on OSX, and compiling on the command line like such: gcc test.c -framework OpenGL -framework GLUT at the top of my source file, i manually include two headers: #include <OpenGL/OpenGL.h> #include <GLUT/GLUT.h> so far, everything has been fine and dandy. but today i noticed that using GL_PRIMITIVE_RESTART gives me an undeclared identifier error... are there other headers i need to include or other frameworks? or does apple just not support GL_PRIMITIVE_RESTART in

问题 i'm using OpenGL 3.2 and GLUT on OSX, and compiling on the command line like such: gcc test.c -framework OpenGL -framework GLUT at the top of my source file, i manually include two headers: #include <OpenGL/OpenGL.h> #include <GLUT/GLUT.h> so far, everything has been fine and dandy. but today i noticed that using GL_PRIMITIVE_RESTART gives me an undeclared identifier error... are there other headers i need to include or other frameworks? or does apple just not support GL_PRIMITIVE_RESTART in

问题 As far as I know the .lib file is some sort of compiled file and of course the dll file contains all the functions in it anyway. Why can't I just do with the .lib file or just the .dll file? Why do the instructions tell me to get all three of them? By the way, are openGL files not free anyway that we have a "freeGLut"?? 回答1: As far as I know the .lib file is some sort of compiled file and of course the dll file contains all the functions in it anyway. No, it's not that simple. A DLL is a

问题 I want to use GLUT to simplify my code and work. I'm using windows 7 (64 bit) and Visual Studio 2010. I did everything like in this tutorial and still can't compile my code... I get these errors: Error 2 error LNK1120: 1 unresolved externals <path> Error 1 error LNK2019: unresolved external symbol _WinMain@16 referenced in function ___tmainCRTStartuL The code I use: #include <GL/glew.h> #include <GL/glut.h> void display (void) { glClearColor(1.0f, 0.0f, 0.0f, 1.0f); glClear(GL_COLOR_BUFFER