glut

问题 I am doing a simple OpenGL freeglut project where I need to close an OpenGL window and when given a command, reopen it in the initial state (Like a game staring again when the replay button is pressed). I want to do something like this - while (c == 'y') { glutDisplayFunc(display); glutMouseFunc(mouse); glutMainLoop(); printf ("Want to play again? (y/n)\n"); scanf ("%c", &c); } How can I do this? I saw about glutDestroyWindow() somewhere but couldn't figure out how to use that in my case. 来源：

问题 Visual Studio Code highlights all my glut functions as undefined, but compiles flawlessly. How can I get rid of the red underlining, without deactivating the syntax highlighting? Includes of main.h : #include <stdlib.h> #include <GL/glew.h> #include <GL/glut.h> #include <math.h> #include <string> I added all paths I could think of to the include path and browse path section in the c_cpp_properties.json file. { "name": "Linux", "includePath": [ "/usr/include", "/usr/include/GL", "/usr/local

问题 I'm just starting out with freeglut and glew and getting it running was already quite hard for me. So now I started coding with tutorials from swiftless and I had a square displayed worked fine. Now I got to the point where I want to make the square move with the arrow keys. From the point I inserted the glutIdleFunc it started lagging. I cant move the window or click on anything else for about a minute. If I try draging the window then it moves after about 2 min. I tried doing this with the

问题 I'm separating my code into multiple files, but this is one thing I don't get. In graphics.h: ... class graphics { public: virtual void SizeMod(int w, int h); ... } In graphics.cpp: ... void SizeMod(int w, int h) { //Code here. } ... In main.cpp: ... graphics g; ... int main (int argc, char **argv) { ... glutReshapeFunc(g.SizeMod); ... } Error: error C3867: 'graphics::SizeMod': function call missing argument list; use &graphics::SizeMod to create a pointer to member And so I did that: ...

问题 I am trying to write a GLUT application in C++ that requires some simple user interface. I need to be able to input text(in fact double values), click radio buttons and check boxes. The application I am bulding needs to be platform-independent so I am looking for a UI library that also is. Searching through the internet I found quite a few possibilities but I think it will take some time to discover their pros and cons. Could someone share previous experience with that sort of thing? Some of

问题 I am trying to set up a Picture in picture style "map" display for a graphics program that displays a car. (Just shows the view from top again in a smaller view port.) However, the second viewport seems to flicker. I thought I was doing this correctly, but I may be not conceptualizing this correctly. void display(void) { glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT); // Set Perspective glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(fov, aspect, near,

问题 In my project i want to display a two different menus based on where user press the right mouse button. I implemented picking. There is no problem here. I want to display a menu when user right clicks an object, and a different menu when right click does not match any object(empty area in screen). Is this possible with GLUT? 回答1: If your application is getting sophisticated enough to require this, then you need to stop using GLUT. You've simply out-grown its capabilities. GLUT is for simple

问题 When i try to run this code after compiling it, i got only a window border without content, so where is the error? Note: i am using ubuntu and gcc for compiling gcc -lglut Simple.c -o Simple The output #include <GL/glut.h> // Header File For The GLUT Library #include <GL/gl.h> // Header File For The OpenGL Library #include <GL/glu.h> // Header File For The GLu Library void SetupRC(void); void RenderScene(void); void ChangeSize(GLsizei w, GLsizei h); // Called to draw scene void RenderScene

问题 For the entire night, I've been looking around the internet, both stackoverflow and elsewhere, to find something to say how to print text on GLUT. While I've found places that say how, none have explained it well, saying which parts of the function is neccessary, which parts aren't. I've also tried to copy in some of the code with the closest to a success is something that made my entire screen white except for some blue pixels. So I've given up, and I'm hoping this will clear up confusion

问题 I would like to zoom in on an object for as long as I hold the right mouse button down. The issue right now is that I have to click it every time I want to zoom. Is there a way I can modify my code so that it will zoom while I hold the button, rather than clicking it? void mouse(int button, int state, int x, int y) { // Save the left button state if (button == GLUT_LEFT_BUTTON) { leftMouseButtonDown = (state == GLUT_DOWN); zMovement += 0.1f; } else if (button == GLUT_RIGHT_BUTTON) {