Roman Guerin

Developed a custom particle engine designed for scalability and deep understanding of physics programming. Made as a school project, I went beyond and built a fluid simulation and optimized it. The system adapts its execution based on particle count requirements.

• Inside Unreal but using native C++.
• Implemented spatial simulation algorithms for fluid behaviors.
• Dynamic scaling utilizing GPU optimizations including Compute Shaders and GPU Instancing/Batching for massive particle counts.
• Focused on memory alignment and data-locality to ensure high-performance rendering.

An exploratory system evaluating how procedural 3D plant models can mutate and adapt. While the thesis focuses on small-scale individual flora, the ultimate architectural goal is full biome generation.

• Implemented an Interactive Evolutionary Computation approach where the user acts as the fitness function to guide plant mutation.
• Explored Crossover and Procedural Mutation algorithms to create organic variations.
• Studied state-of-the-art scientific papers on algorithmic plant growth.

A puzzle game presented in an isometric view, featuring the unique aspect that allows players to create clones to solve each room. However, the player requires time to generate these clones, and their time is limited.

Architected a system for a 3rd-year student project, focusing heavily on performance constraints and data management.

• Developed a Time Record/Playback system saving velocities and player actions.
• Heavily optimized the recording loop to fluidly support up to 100 simultaneous player clones without frame drops.

I like building tools to help developers and designers. I regularly extend the Unity Editor to solve specific problems.

• Built custom Level Design workflows and gizmos for Storygami, drastically reducing iteration time.
• Developed a Project hierarchy tool allowing custom folder coloring to improve asset management and visual organization.
• Procedural generation of blocs using a propagation style algorithm.
• Deep usage of Unity's Editor GUI scripting.

Built in just 48 hours, this project was an exercise in Game Feel and visual polish. The goal was to transform a basic bouncing mechanic into a sensory experience using procedural effects.

• Implemented dynamic feedback systems: screen shake, time-stop on impact, and procedural particle trails.
• Focused on rapid iteration and "Juice" programming to maximize player engagement with minimal mechanics.
• Managed all post-processing volumes and real-time color grading to maintain a cohesive neon-retro aesthetic.