glew

问题 I am trying to play with couple of OpenGL on my laptop. As the fastest method, I installed an MSYS2. I installed mingw-w64-x86_64-gcc , mingw-w64-x86_64-glew , mingw-w64-x86_64-glfw3 etc. I think I installed all the required packages. My programs are giving me segmentation fault as soon as I call an OpenGL routine. To make a minimal working example, I am copying the Hello, Triangle example from LearnOpenGL.com so that things will be kept small. I get the same problem in this program as well.

问题 just wondering how someone would go about dragging 4 different objects in openGL. I have very simple code to draw these objects: glPushMatrix(); glTranslatef(mouse_x, mouse_y, 0); glutSolidIcosahedron(); glPopMatrix(); glPushMatrix(); glTranslatef(mouse_x2, mouse_y2, 0); glutSolidIcosahedron(); glPopMatrix(); glPushMatrix(); glTranslatef(mouse_x3, mouse_y3, 0); glutSolidIcosahedron(); glPopMatrix(); glPushMatrix(); glTranslatef(mouse_x4, mouse_y4, 0); glutSolidIcosahedron(); glPopMatrix(); I

问题 I want to use the cygwin32 compiler instead of mingw32. According to http://web.eecs.umich.edu/~sugih/courses/eecs487/glut-howto/glfw/ , the GLX programs of gl on cygwin don't work with glfw. So I tried to use mingw32 binaries of glfw3 in cygwin32, which gave errors like 'GL_ARRAY_BUFFER' was not declared in this scope. I solved that by linking with mingw32 binaries of glew32, which gave /usr/include/w32api/GL/glu.h:68:79: error: expected ')' before '*' token which I solved two different ways

问题 I want to draw a circle in a specific position using the coordinates of the centre of the circle and its radius. All the methods that i found are using glut and none of them position the circle in a specific point. I wanna mention that I'm new to this things and if I'm doing something wrong, I would be happy to know it. This is what I did so far: class Constructor Mesh::Mesh(Vertex * vertices, unsigned int numVertices) { m_drawCont = numVertices; glGenVertexArrays(1, &m_vertexArrayObject);

问题 I'm at the initialization phase of my OpenGL application, and I'm adding some code to check for various extensions. Immediately I hit a stumbling point: /* Check for EXT_texture_compression_s3tc */ if (GLEW_EXT_texture_compression_s3tc) infomore("GL_EXT_texture_compression_s3tc supported.\n"); else errormore("GL_EXT_texture_compression_s3tc unsupported.\n"); /* Check for anisotropic filtering */ if (GLEW_EXT_texture_filter_anisotropic) infomore("GL_EXT_texture_filter_anisotropic supported.\n"

问题 I am trying to run a simple code for paraview from jupyter notebook as following: from paraview.simple import * cone = Cone() Show(cone) Render() But this gives me an error ERROR:In/home/conda/feedstock_root/build_artifacts/paraview_1532760595263/work/VTK/Rendering/OpenGL2/vtkOpenGLRenderWindow.cxx, line 781 vtkOSOpenGLRenderWindow (0x556661755060): GLEW could not be initialized. The error remains the same when I run it from a python shell. I also installed paraview using conda. I am using

问题 I’m currently working on a final programming project for a games development course, and chose to make use of C++ and OpenGL for the 3D rendering side of the program (despite the fact I have little experience with it). I was working with it until now absolutely fine with no serious errors, and then left it for a few days. But when I returned I started to get various "C4430 - Missing Type Specifier" errors with the few GLfloat variables I had used. This was my previous definitions, which

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 using Eclipse, I had originally downloaded the binary from the website until someone pointed out that I needed to build it from source to make it work with mingw, so I did and I got these files: glew32.dll , libglew32.a , and libglew32.dll.a I dropped the glew32.dll into the debug folder, and linked the libraries but it did not work. The weird part: GLenum status = glewInit(); works but glClearColor and glClear do not work and I get a undefined reference to error when I try to call them.

问题 Let's consider the following program and try to compile it under Cygwin: #include <GL/glut.h> int main(int argc, char** argv) { glutInit(&argc, argv); glLoadIdentity(); } It compiles and runs just fine. -I/usr/include/opengl seems to be terribly important. g++ -I/usr/include/opengl -I../include/cygwin -L../lib/cygwin test.cpp -o test.exe -lglut32 -lglu32 -lglew32 -lopengl32 Now, #include <GL/glew.h> // from newest NVIDIA SDK #include <GL/glut.h> int main(int argc, char** argv) { glewInit();