Tiny Obj Loader is a lightweight, header-only C++ library for loading 3D models in the OBJ file format. It is commonly used in graphics programming with OpenGL to easily integrate 3D models into your projects. Here's a basic guide on how to use Tiny Obj Loader:

1. Download Tiny Obj Loader: Start by downloading the Tiny Obj Loader header file from its official repository or using a package manager like vcpkg.

2. Include the Header File: Once you have the header file, include it in your C++ project using #include at the top of your source file.

3. Load the OBJ Model: Use the tinyobj::attrib_t and tinyobj::shape_t to store the attributes and shapes of the OBJ model after parsing it using the tinyobj::LoadObj function.

4. Access Model Data: With the model loaded, you can access its vertex positions, texture coordinates, normals, and faces to render it in your OpenGL application.

5. Error Handling: Lastly, don't forget to handle any errors that may occur during the model loading process using the error messages provided by Tiny Obj Loader.

With these simple steps, you can quickly integrate 3D models into your OpenGL projects using Tiny Obj Loader. It's a handy tool for graphics programming that simplifies the process of working with 3D assets and helps you focus on the overall visual experience of your application.