C++ Implementation of basic ray tracer based on the book Ray Tracing in One Weekend by Peter Shirley. This project is written in C++ 14 and can be compiled with popular compiler systems such as Clang, MSVC, etc.
This simple renderer contains fundamental features of modern physically based renderers such as
- Abstract Vector3 class for holding & manipulating data of points, colors (RGB), and (obviously) vectors
- Freely movable & rotatable Camera class whose vertical FOV, and DOF can be adjusted by user
- Frequently used materials: Lambertian (Diffuse), Metal, and Dielectric
- Utility functions that come in handy for various tasks (random number generation, converting units)
- A demo code which generates the beautiful image you saw on top of this document
Also, it supports GPU accelerated rendering on Windows having CUDA 10 or higher.
- CPU multi-threading support (OpenMP)
- GPU support (CUDA)
- More geometry
- More materials
- Texture support
- Command-line support
- File I/O (to set up large, complex scene within a file and then manage it easily)
.
├── src # Source files
├── cpu # CPU version
├── gpu # GPU version (Requires CUDA 10.1 or higher)
├── .github/workflows # CI scripts
├── .gitignore # .gitignore file
├── CMakeLists.txt # CMakeLists.txt file containing project settings & build options
├── LICENSE # License info of this project
└── README.md # the file you are reading
under src/cpu directory there are:
.
├── Camera.hpp # Camera class of FirstRayTracer
├── Color.hpp # a function for writing RGB data to a file
├── dielectric.hpp # Dielectric material class
├── hittable.hpp # hittable class of FirstRayTracer
├── hittable_list.hpp # class for managing multiple hittable objects in a scene
├── lambertian.hpp # Lambertian (diffuse) material class
├── main.cpp # a demo code that generates the cover image
├── material.hpp # general form of material class
├── metal.hpp # Metal material class
├── ray.hpp # ray class of FirstRayTracer
├── rtweekend.hpp # a project header defining constants & utility functions
├── sphere.hpp # sphere class which is a derived class of hittable
└── Vector3.hpp # Vector3 class which defines the fundamental ADT of this renderer
and most of files under src/gpu are written based on the CPU implementation, thus structure and design principle are almost identical.