Toy Renderer(practice rendering using OpenGL 3.3)

• Desktop App

• Language: C++17

• Graphics API: OpenGL 3.3

• Limitations

  • There are some shortcomings in the architecture (e.g., Frame Graph, Resource Alias, Multi-Mesh, Multi-Threading, etc.).
  • The reason is that I decided there would be more to gain by implementing these features later with modern APIs such as Vulkan, Metal, and DX12.
  • So I focused on rendering effects and did not allocate additional time to the architecture before concluding the project.

• Implementing Effects

  • 1 Rasterization Rendering (IBL, Deferred Lighting, Ambient Occlusion, ETC)

    • Render Dependency Graph

    • [Metalic: 0.9 / Roughness: 0.1]

    • [Metalic: 0.6 / Roughness: 0.4]

  • 2 Ray Tracing Rendering (Extensions related to trace and acceleration are not being used.)

    BVH - It is uploaded to GPU via TexelBufferObject (SSBO is currently unavailable.)

• Camera Control UX

  • Mouse: Rotate view-space basis
  • Keybord
    • W: Move to Z of view-space
    • S: Move to -Z of view-space
    • A: Move to -X of view-space
    • D: Move to X of view-space

Build Tools

• CMake 3.2
• vcpkg

Install Dependencies

./vcpkg install glad
./vcpkg install glfw
./vcpkg install ASSIMP
./vcpkg install stb

Build

mkdir build
cd build
cmake .. -DCMAKE_TOOLCHAIN_FILE="{your_vcpkg_path}/scripts/buildsystems/vcpkg.cmake"
make

Run Sample App

Rasterization Rendering

./app_pbr

Ray Tracing Rendering

./app_ray_trace

Reference

Thanks to https://learnopengl.com/