glad

Vulkan/GL/GLES/EGL/GLX/WGL Loader-Generator based on the official specifications for multiple languages.

Check out the webservice for glad2 to generate the files you need!

NOTE: This is the 2.0 branch, which adds more functionality but changes the API.

Some languages are only available in the glad1 generator.

Examples

#include <glad/gl.h>
// GLFW (include after glad)
#include <GLFW/glfw3.h>


int main() {
    // -- snip --

    GLFWwindow* window = glfwCreateWindow(WIDTH, HEIGHT, "LearnOpenGL", NULL, NULL);
    glfwMakeContextCurrent(window);

    int version = gladLoadGL(glfwGetProcAddress);
    if (version == 0) {
        printf("Failed to initialize OpenGL context\n");
        return -1;
    }

    // Successfully loaded OpenGL
    printf("Loaded OpenGL %d.%d\n", GLAD_VERSION_MAJOR(version), GLAD_VERSION_MINOR(version));

    // -- snip --
}

The full code: hellowindow2.cpp

More examples in the examples directory of this repository.

Plugins

Glad plugins maintained by the community to add support for more languages:

• Fortran.

Documentation

The documentation can be found in the wiki.

Examples can be found in the example directory. Some examples:

• C/C++
  • GL GLFW
  • GL GLFW On-Demand loading
  • GL GLFW Multiple Windows/Contexts
  • GL SDL3 Callbacks
  • GL SDL3
  • GL SDL2
  • Vulkan GLFW
  • GLX
  • GLX Modern
  • WGL
  • EGL X11
• Rust
  • GL GLFW
  • GL GLFW Multiple Windows/Contexts

License

For the source code and various Khronos files see LICENSE.

The generated code from glad is any of Public Domain, WTFPL or CC0. Now Khronos has some of their specifications under Apache Version 2.0 license which may have an impact on the generated code, see this clarifying comment on the Khronos / OpenGL-Specification issue tracker.