Light System base on OpenGl

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A simple demo about some basic light base on OpenGL.

Includes:

• Blinn-Phong model.
• Multiple light sources:
  • Theory Light: Directional, Point, Spot
  • Area Light: Rect, Disk, Circle, Cylinder
  • IBL (See my final project about PBR on CS6610)
  • Volumetric Light
• Updated and rebuild the old OpenGL render framework

Third-party libraries

• GLFW (GLFW provides a simple API for creating windows, contexts, and surfaces, receiving input and events.)
• GLAD (GLAD is a Multi-Language GL/GLES/EGL/GLX/WGL Loader-Generator based on the official specs.)
• ImGui (ImGui is a bloat-free graphical user interface library for C++.)
• GLM (OpenGL Mathematics (GLM) is a header-only C++ mathematics library for graphics software based on the OpenGL Shading Language (GLSL) specifications.
• stb_image (Decoding different type images like JPG, PNG)
• ASSIMP (A library to import and export various 3d-model-formats including scene-post-processing to generate missing render data.)

Some Reslut:

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TODO:

• Another way to render area light on Real-Time Rendering. Chapter 10. Local illumination
• Better shadow optimization.