Overview

This is a basic raytracer written from scratch in C++. It is designed to be cross-platform. Despite its simplicity, this raytracer can produce basic images with reflections and shading.

Features

• Basic raytracing capabilities
• Scene confiugration using Lua
• Phong Lighting
• Shadow
• Reflections

Supported Shapes (more to be added)

• Sphere

Building and Compiling

Prerequisites

• A C++ compiler (e.g., GCC, Clang, MSVC)
• Premake5
• Lua

Building

• Get the code git clone https://github.com/CatB1t/raytracer.git
• Clone Lua source code into the directory vendor/lua/
• In the project directory, run premake5 [action], e.g. premake vs2022
• For toolsets like Visual Studio, you can simply load the generated solution IDE and build as you normally would
• If you have generated makefiles, run make
• You will find the executable in the build/bin/ directory, if you have a scene config, simply run ./raytracer
• To generate a scene configuration file, use ./raytracer -g scene.lua

Options

• -w to specify width. default 800
• -h to specify height. default 800
• -o to specify output file. default image
• -c to specify scene configuration file, default scene.lua
• -g name.lua to generate example scene configuration to name.lua