Ray Tracing

A rudimentary (and slow) software ray(path)tracer. Made from scratch in C++

Features

• Live ECS based editor.
• Scene system with json based load/save
• GPU accelerated (compute shader) raytracer with Spheres, Boxes and Triangle intersections
• .obj model loading
• Depth of Field
• Naive, ray diverge based Anti-Aliasing

Planned

• SAH BVH (see: https://jacco.ompf2.com/2022/04/13/how-to-build-a-bvh-part-1-basics/)
• Multiple Importance Sampling (see: https://lisyarus.github.io/blog/posts/multiple-importance-sampling.html / https://www.youtube.com/watch?v=p772XkEnEIU)

Dependencies

• spdlog - 1.16.0
• glad - 0.1.36
• glm - 1.0.2
• glfw - 3.4
• entt - 3.16.0
• nlohmann_json - 3.12.0
• tinyobjloader - 2.0.0rc13
• ImGui - 1.91.9
• portable-file-dialogs - 0.1.0

Dependencies are managed using Vcpkg and CMake

Resources Used

• The only, "Ray Tracing in One Weekend": https://raytracing.github.io/books/RayTracingInOneWeekend.html
• Sebastian Lague's raytracing serie: https://www.youtube.com/playlist?list=PLFt_AvWsXl0dlgwe4JQ0oZuleqOTjmox3
• PCG random number generators in glsl: https://observablehq.com/@riccardoscalco/pcg-random-number-generators-in-glsl
• DomNomNom's Ray-AABB intersection: https://gist.github.com/DomNomNom/46bb1ce47f68d255fd5d
• Jacob Gordiak's raytracing serie: https://www.youtube.com/@JacobGordiak
• The Cherno's game engine youtube serie: https://www.youtube.com/playlist?list=PLlrATfBNZ98dC-V-N3m0Go4deliWHPFwT