C++ Raytracer

Description

This is a C++ implementation of a raytracer, a computer graphics technique for simulating the way light interacts with objects to generate realistic images. This raytracer supports features like basic shapes (spheres), reflections, shadows, and basic materials.

Features

• Sphere primitive
• Materials (Matte, Specular, Dielectric)
• Shadows
• Reflections
• Anti-aliasing
• Depth of Field
• PNG output
• Multi-threading

Getting Started

Prerequisites

• C++17 or higher
• CMake (for building)

Building

1. Clone this repository:

   git clone https://github.com/PotatoPresident/Ray-Tracer
   cd Ray-Tracer

2. Create a build directory and generate build files with CMake:

   mkdir build
   cd build
   cmake ..

3. Build the project:

   cmake --build .

Usage

./raytracer.exe

./raytracer.exe <image_width> <image_height> <samples_per_pixel> <max_depth> <threads>

Options

• image_width : Set the width of the output image (default: 100).
• image_height : Set the height of the output image (default: 100).
• samples_per_pixel : Specify amount of samples for each pixel (default: 10).
• max_depth : Set the maximum amount of times a ray can bounce (default: 10).
• threads : Set the number of threads to use for rendering. Set to 0 to use maximum suggested (default: 0).

Scene File Format

The scene file is a text file containing a description of the objects and their properties. Here is an example:

Examples

./raytracer.exe
./raytracer.exe 1920 1080 100 50 0

Acknowledgments

This project was inspired by Peter Shirley's "Ray Tracing in One Weekend" series.

License

This project is licensed under the MIT License - see the LICENSE file for details.