Pathtracer

Project: Path Tracer Implementation

Overview

A path tracer developed from scratch as part of computer graphics course at Chalmers University of Technology. This physically-based rendering engine simulates light behavior in 3D scenes to generate realistic images, demonstrating my understanding of ray tracing, material modeling, and advanced rendering techniques.

Key Features

• Ray Tracing Core: Implemented ray generation, intersection testing, and recursive shading for global illumination.
• Material Models: Developed diffuse, metal, and dielectric materials using BSDFs, including Fresnel reflections for glass-like surfaces.
• Lighting: Calculated direct illumination from point lights and indirect illumination through path tracing. Integrated environment maps for realistic lighting.
• Importance Sampling: Improved efficiency with cosine-weighted sampling (diffuse) and microfacet sampling (glossy/metals).
• Optimizations: Used Russian Roulette for path termination and epsilon offsets to avoid numerical instability.

Technologies

• Languages: C++
• Libraries: GLM for vector/matrix math.
• Algorithms: Custom ray tracing, path tracing, and importance sampling.

Results

• Produced realistic images with accurate lighting, reflections, and refractions.
• Achieved efficient rendering through advanced sampling techniques.

Relevance

This project showcases my ability to implement complex rendering algorithms and my understanding of computer graphics principles. It highlights my skills in C++, mathematics, and problem-solving, making it a strong addition to my portfolio.