https://github.com/ehwan/ehgl

gl c++ wrapper
https://github.com/ehwan/ehgl

Last synced: 10 days ago
JSON representation

gl c++ wrapper

• Host: GitHub
• URL: https://github.com/ehwan/ehgl
• Owner: ehwan
• License: mit
• Created: 2016-09-27T15:25:33.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2024-06-27T11:46:01.000Z (4 months ago)
• Last Synced: 2024-06-27T16:16:26.155Z (4 months ago)
• Language: C++
• Size: 151 KB
• Stars: 0
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# ehgl

header-only OpenGL c++ wrapper

RAII based GL Objects and memory allocation

- This project is using `Eigen` for Perspective & Camera matrix construction ( `eg/math.hpp` )

and `SFML` for debug window creation ( `eg/debug_window.hpp` ).

- comment out those files in `eg.hpp` to remove dependancy.

- for your own OpenGL Loader, include main header file to `eg/gl.hpp`

## Sample Code

```cpp

// example/mandelbrot/mandelbrot.cpp

#include 

// GL Program object

eg::Program program;

// GL VertexArrayObject object

eg::VertexArray varray;

// SFML windows ( for test )

eg::debug::window_context window;

int main()

{

/*

 ...

*/

  std::cout << "OpenGL Version " << eg::context.major_version() << "." << eg::context.minor_version() << std::endl;

  std::cout << "Vendor : " << eg::context.vendor() << std::endl;

  std::cout << "Renderer : " << eg::context.renderer() << std::endl;

  std::cout << "Shader : " << eg::context.shading_version() << std::endl;

  // program creation & linkage

  {

    // make vertex shader

    auto vertex = eg::make_shader( GL_VERTEX_SHADER );

    vertex.source( vertex_shader );

    vertex.compile();

    // make fragment shader

    auto fragment = eg::make_shader( GL_FRAGMENT_SHADER );

    fragment.source( fragment_shader );

    fragment.compile();

    // make program

    program = eg::make_program();

    program.attachShader( vertex );

    program.attachShader( fragment );

    program.bindFragDataLocation( 0, "outcol" );

    if( program.link_detach() == false )

    {

      std::cout << "program link failed : \n" << program.errorMessage() << std::endl;

      return 0;

    }

  }

  varray = eg::make_vertex_array();

  window.run();

  return 0;

}

```