You have to compute the matrix manually and then pass it to OpenGL. Computing the matrix This snippet of code is based on the gluPerspective documentation. void BuildPerspProjMat(float *m, float fov, float aspect, float znear, float zfar) { float f = 1/tan(fov * PI_OVER_360); m[0] = f/aspect; m[1] = 0; m[2] = 0; m[3] = … 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
FreeGLUT: Based on the GLUT API. GLUT has been around for about as long as OpenGL itself. Many tutorials and examples out there use GLUT. Takes care of implementing the event loop and works through callbacks (good for simple stuff, makes things like precisely timed animation loops and low latency input much harder though). GLFW: … Read more
mingw32 exists as a package for Linux. You can cross-compile and -link Windows applications with it. There’s a tutorial here at the Code::Blocks forum. Mind that the command changes to x86_64-w64-mingw32-gcc-win32, for example. Ubuntu, for example, has MinGW in its repositories: $ apt-cache search mingw […] g++-mingw-w64 – GNU C++ compiler for MinGW-w64 gcc-mingw-w64 – … Read more