glutInit() doesn’t create a GL context or make one current. You need a current GL context for glewInit() and glGetString() to work. Try this: #include <GL/glew.h> #include <GL/glut.h> #include <cstdio> int main(int argc, char **argv) { glutInit(&argc, argv); glutCreateWindow(“GLUT”); glewInit(); printf(“OpenGL version supported by this platform (%s): \n”, glGetString(GL_VERSION)); }
Typical CMake scripts like FindGLEW will define variables that specify the paths and files that your project needs. If the script can’t automatically identify the correct paths (usually because of nonstandard install location, which is fine), then it leaves these variables up to you to fill in. With command line CMake, you use the -D … Read more
The syntax for target_link_libraries is: target_link_libraries(your_executable_name libraries_list) And you don’t have to add add_definition statements (target_link_libraries adds this options) There are also some useful variables provided by OpenGL and GLEW packages. Your CMakeLists.txt should be like: cmake_minimum_required (VERSION 2.6) project (test) find_package(OpenGL REQUIRED) find_package(GLEW REQUIRED) include_directories(${OPENGL_INCLUDE_DIR} ${GLEW_INCLUDE_DIRS}) add_executable(test main.cpp ) target_link_libraries(test ${OPENGL_LIBRARIES} ${GLEW_LIBRARIES}) One important … Read more
Before starting, remove the framework and all files you have added while trying to make it work. Then, you have to add the frameworks in the Build Phases of your target. Then go into Link Binary With Libraries and select your framework from there. This should do it. Your headers should be available as auto-completion … Read more
The OpenGL Extension Wrangler (GLEW) is used to access the modern OpenGL API functions(version 3.2 up to latest version).If we use an ancient version of OpenGL then we can access the OpenGL functions simply including as #include <GL/gl.h>.But in modern OpenGL, the API functions are determined at run time, not compile time. GLEW will handle … Read more
libglew is just the library, but not the development files (headers). You need to install those separately. The package name on Debian based systems is libglew-dev and for fedora(and possibly its derivatives) it is glew-devel