glut

问题 Anyone have idea on this? Linker errors are way out of my wheelhouse, especially ones like this. Is there any more info I should include? 1>Linking... 1>freeglut_static.lib(freeglut_window.obj) : warning LNK4075: ignoring '/EDITANDCONTINUE' due to '/OPT:ICF' specification 1>LIBCMTD.lib(dbgheap.obj) : error LNK2005: __heap_alloc already defined in LIBCMT.lib(malloc.obj) 1>LIBCMTD.lib(dbgheap.obj) : error LNK2005: __recalloc already defined in LIBCMT.lib(recalloc.obj) 1>LIBCMTD.lib(dbgheap.obj)

问题 I wrote an OpenGL app in C++ a while ago, back when my operating system was Windows XP. I used GLUT (plane ol' version) to show the window and also used full screen mode. There are times when I displayed a message box (MessageBoxA method, using the MB_TASKMODAL modifier). In windows XP the message box was being displayed nicely over the full screen graphics, but it seems that something has changed in windows 7. Now, the application behaves like the message box is displayed, mainly, the

问题 I have a model that needs to be under a spotlight/directional light, Meaning, I need to switch between the modes (Spotlight and directional). Here is the code with some explanation: I can rotate the model / light source with mouse movements so I am using glRotate and glTranslate for that. Once the user pressed the 'L' key I'm supposed to switch between the modes. here is the code for the lightning: void LightBall::projectLight(void) { if(LIGHT == _lightMode){ printf("Entering LIGHT mode\n");

问题 I'm coding a basic OpenGL game and I've got some code that handles the mouse in terms of moving the camera. I'm using the following method: int windowWidth = 640; int windowHeight = 480; int oldMouseX = -1; int oldMouseY = -1; void mousePassiveHandler(int x, int y) { int snapThreshold = 50; if (oldMouseX != -1 && oldMouseY != -1) { cam.yaw((x - oldMouseX)/10.0); cam.pitch((y - oldMouseY)/10.0); oldMouseX = x; oldMouseY = y; if ((fabs(x - (windowWidth / 2)) > snapThreshold) || (fabs(y -

问题 I know that in order to write a GTK application, I write a bunch of code which describes what is put in the main window, then I call: gtk_main(); Any code statements after this do not get executed. Now let's suppose I'd like my GTK app to display something I wrote with glut, which itself contains a bunch of statements about what graphics need to be set etc. then ends with the statement: glutMainLoop(); Anything after this is not executed. So my problem is that either of these two statements

问题 I want to draw a series of connected lines (GL_LINE_STRIP) in following way. I had tried to code by my own, but not get desired result, so i come here, help me to find out where i was wrong. here i am giving only my draw() function. glBegin(GL_LINE_STRIP); glVertex2f(-4.00, 0.00); glVertex2f(-3.00, 2.00); glVertex2f(-2.00, 0.00); glVertex2f(-1.00, 2.00); glVertex2f(0.0, 0.00); glVertex2f(1.00, 2.00); glVertex2f(2.00, 0.00); glVertex2f(3.00, 2.00); glVertex2f(4.00, 0.00); glEnd(); 回答1: Workin'

问题 I am looking to get started with some 3D programming in C or C++. The problem I have is that it seems like the only tutorials I can find for Mac OS use objective C and Cocoa frameworks. I want to obtain the same environment as Windows users, more or less. If I try to use a text editor and g++ compiler, I am missing headers, but, if I try to use Xcode, I am forced to grapple with Cocoa, which is frustrating to me. I don't really see any reason why the OpenGL/GLUT that comes pre-installed on

问题 I am looking to get started with some 3D programming in C or C++. The problem I have is that it seems like the only tutorials I can find for Mac OS use objective C and Cocoa frameworks. I want to obtain the same environment as Windows users, more or less. If I try to use a text editor and g++ compiler, I am missing headers, but, if I try to use Xcode, I am forced to grapple with Cocoa, which is frustrating to me. I don't really see any reason why the OpenGL/GLUT that comes pre-installed on

问题 I've got a C / C++ (only main file is .cpp so I can use OpenGL) program, I use OpenGL (GLUT, GLUI) in it. It already displays something but I want it to move every x ms. I render some circles (known speed and coordinates) and I have already made the function that computes it's next position knowing the refresh rate. I've tried to put my display callback in a timer callback but the program just freezed. What can I do in order to run the display callback every x ms ? 回答1: I've tried to put my

问题 I am beginner to GLUT in C++. I am using Dev C++ as my IDE. I have this simple triangle drawing code and it produces an error "redeclaration of C++ built-in type short ". But When I put #include<iostream.h> before #include<glut.h> , it compiles and runs. Can anyone explain the logic behind that? #include<glut.h> void renderScene(void) { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glBegin(GL_TRIANGLES); glVertex3f(-0.5,-0.5,0.0); glVertex3f(0.5,0.0,0.0); glVertex3f(0.0,0.5,0.0); glEnd(