OpenGL

3D Model Loader & Transforms

This project involved a custom OpenGL model loader for .obj files. It included support for material files, textures, and the option to render using EBOs. The demo video below demonstrates a 3D model with textures being loaded and then transformed using MVP matrices.

Interface for model loading:

class Model
{
public:
    Model(const std::string& path);
    ~Model() = default;

    const std::vector<float>& GetVertices();

    std::vector<float>& GetUnique();
    std::vector<unsigned>& GetIndices();
    std::vector<float>& GetVerticesMutable();
    bool HasTextures();
private:
    void LoadMaterials(const std::filesystem::path& path);
    void LoadVertices(const std::filesystem::path& path);

    void Normalize();

    void UpdateEBO();
private:
    std::vector<float> m_Vertices;
    std::vector<float> m_Normals;
    std::vector<float> m_Unique;
    std::vector<unsigned> m_Indices;
    std::vector<float> m_TexCoords;
    std::unordered_map<std::string, Material> m_Materials;
    bool m_TexturesEnabled = false;
};

Lighting Models

This project implemented various forms of lighting in OpenGL. These forms included Phong, Gouraud, and flat shading implemented using shaders. Additionally, there was a mode to visually display the depth buffer. The program allowed for varying 3D models, lights, light colors, and other customization using an ImGui interface that can be seen in the video below.

This program did not use the model loader from the previous project for increased flexibility and instead relied on Assimp.