🎓 Fundamentals of Computer Graphics – Full Projects

This repository contains three assignments developed by Edoardo Papa (Matricola 1962169) during the Fundamentals of Computer Graphics course. Each project demonstrates a specific set of graphics techniques using C++ and CMake, ranging from ray tracing to advanced shading and complex scene rendering.

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🗂 Project Overview

GITHUB/
├── Homework1/ – Ray Tracing with Toon and Refraction Effects
├── Homework2/ – Path Tracing, Refraction, and Large Scenes
├── Homework3/ – 

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🧪 Homework 1 – Basic Raytracing with Shader Effects

✨ Features Implemented

• Toon Shader (Cell Shading) using light quantization and custom shader logic
• Refraction Shader simulating Fresnel effect with reflect and refract blending
• Configurable resolution and samples

🧠 Implementation Notes

For the Refraction Shader, a new refractor shader was added to the raytrace_shader_type enum. The shader computes reflection and transmission based on the Fresnel term and uses random sampling to switch between them.

For the Toon Shader, the logic from the shade_raytrace was adapted, and a get_toon_magic() function was created based on the algorithm from:

🔗 https://roystan.net/articles/toon-shader.html

🖼 Example Outputs

• Refraction Example
  

• Toon Effect Example
  

▶️ Run Examples

./bin/yraytrace --scene tests/08_glass/glass.json --output out/lowres/0x_refract_720_9.jpg --samples 256 --shader refractor --resolution 720

./bin/yraytrace --scene tests/07_plastic/plastic.json --output out/lowres/0x_ownshader_720_9.jpg --samples 256 --shader ownshader --resolution 720

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🔬 Homework 2 – Path Tracing, Large Scenes, and MYOS

✨ Extra Features

• Refraction in Path Tracing: integrated into eval_bsdfcos, eval_delta, sample_delta, and others
• Large Scene Rendering: scenes like San Miguel, Bistro, Classroom rendered at 1280px with 1024 samples
• Custom Scene (MYOS): built using Blender, JSON editing, and texture mapping

🖼 Example Outputs

• Refraction Cornell Box
  out/path/01_cornellbox_refractive_s512_r1024.jpg

• San Miguel Scene
  out/path/sanmiguel_s1024_r1280.jpg

• Custom MYOS Scene
  out/path/myos.jpg

▶️ Run Examples

./bin/ypathtrace --scene tests/01_cornellbox_refractive/cornellbox.json --output out/path/01_cornellbox_refractive_s512_r1024.jpg --shader pathtrace --samples 512 --resolution 1024 --bounces 8

./bin/ypathtrace --scene tests/sanmiguel/sanmiguel.json --output out/path/sanmiguel_s1024_r1280.jpg --shader pathtrace --samples 1024 --resolution 1280 --bounces 8

./bin/ypathtrace --scene tests/MYOS/myos.json --output out/path/myos.jpg --shader pathtrace --samples 1024 --resolution 1024 --bounces 8

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🛠 Requirements

• CMake ≥ 3.10
• C++17 compatible compiler
• OpenCV (optional, for image handling)
• Blender (for model prep)

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👤 Author

Edoardo Papa
Matricola: 1962169
📘 Course: Fundamentals of Computer Graphics

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📄 License

This project is intended for educational and academic use only.