GLenjhin

Some C++/OpenGL rendering practice. It's pronounced "glen jin".

Compiled with MSVC v143, C++17. Using OpenGL 4.6 Core. The rendering pipeline is very object-oriented, which should make the rendering pipeline flexible at the cost of some performance.

It's recommended to compile in Release mode for the fastest performance.

Supports Windows 64-bit only.

Dependencies

• GLFW 3.3.5
• Glad - OpenGL 4.6 Core, no extensions
• Dear ImGui 1.85
• Assimp 5.1.3
• xxHash 0.8.1

Features

• Lighting
  • Physically-Based Rendering (PBR): Lambertian (diffuse term) / GGX + Cook-Torrance (specular term) / Schlick (fresnel approximation)
    • Albedo, Normalmaps, MSA (Metallic/Smoothness/AO), Parallax Occlusion Mapping
  • Real-time shadows with 4x4 PCF (soft filtering)
  • Directional lights
• HDR and post processing effects pipeline
  • FXAA (Fast Approximate Anti-Aliasing)
  • Motion Blur (via motion vectors)
  • Deferred SSAO (Screen Space Ambient Occlusion)
  • Bloom
  • Sun Shafts (God Rays)
  • Tonemapping
  • Fullscreen Gaussian blur
  • Fog
• Shaders
  • Skybox rendered from fullscreen triangle via equirectangular projection
• I/O
  • Custom memory/binary stream implementation with bit-level serialization/deserialization support
  • Custom image library
    • PNG support (WIP; RGB/RGBA, 8-bit support only)
    • Custom DEFLATE/zlib implementation
  • Custom asset cache implementation powered by xxHash. Subsequent app startups will be faster if cache is present.
  • Model import pipeline powered by Assimp
• Primitive meshes generated at runtime (mostly trigonometry): cubes, spheres, capsules, cylinders, quads