Shadow Mapping Demo

This project's goal is to demonstrate and visualize the Cascaded Shadow Mapping algorithm for computing shadows in real-time 3D graphics.

Build

1. mkdir build
2. cmake -B build && cmake --build build
3. run with ./build/ShadowMappingDemo

Controls

Most of the controls are located in ImGui windows:

• Rendering
  • various display modes that showcase some part of how the algorithm works, etc.
• Camera
  • it's possible to switch between controlling the Main Camera, Spectator camera and Light using the Tab key
  • the displayed camera is independent and is controlled with number keys at the top of the keyboard (1, 2, 3)
  • options to visualize the cascades light and view (sub)frustums
• Shadow mapping
  • configuration of the shadowmap size (resolution), depth bias, PCF, culling, cascade splits, etc.
  • contains a shadow map inspector that shows the depth map from a specific cascade and allows zooming in
• Scene
  • supports loading scenes from .glb files
    • currently only supports flattened scenes (all nodes on the top level)

Right click in the scene to visualize shadow computation for the given pixel/fragment.

Other controls (mouse and keyboard) are described in the Controls window.

Dependencies

• fmt
• glad
• glfw
• glm
• imgui
• tiny_gltf
  • json
  • stb_image