Xiaohan's portfolio

About me

Hello, I'm Xiaohan (pronounced as "see-ow han"), a Unity XR developer, game developer, and software engineer. Originally trained as an astrophysics PhD, I wrote pipelines for analyzing astronomical data as well as performed large-scale MPI + OpenMP simulations on the evolution of the universe. Now as a Unity developer, I have written numerous XR games and apps, mainly for oculus quest 2 and quest 3, and am also developing non-XR games. With almost 10 years of coding and version control experience, I am capable of adapting to any programming language and writing clean, scalable, and maintainable codes very efficiently.

what i have worked on

XR projects

non-xr games

software development

XR Projects

Asian mom is watching you

Built in Unity and deployed in oculus quest 3
Solo developer; capstone project created during circuitsteam game development bootcamp
My contributions: crafted the entire game flow using a scalable, modular, and easily maintainable observer code design pattern in 3 weeks, and performed optimizations for oculus quest 3

a gamified math learning experience in mr

Built in Unity and deployed in oculus quest 3
Lead developer in team of 5 during the 2024 XR hack in London
My contributions: lead developer that created the entire game flow in less than 2 days using an observer code design

learn japanese alphabet in MR

Built in Unity and deployed in oculus quest 3
Lead developer in team of 4 during the 2024 Meta Hackathon in NYC
My contributions: lead developer that implemented a scalable game architecture using the state machine design pattern

data visualization in vr

Built in Unity and developed for the VizLab at Carnegie Observatories
Solo project
My contributions: developed VizLab's first project that allows users to interact with astronomical data in realtime

the vasly different scales of the universe

Built in Unity and deployed in oculus quest 2
Lead developer in team of 3 during the 2023 Metaverse Creators VR Hackathon
My contribution: lead designer and developer that oversaw all tasks and integration of work, and crafted 2 out of the 4 scenes in the experience

vr safe space to chat with ai listener

Built in Unity and deployed in oculus quest 2
Lead developer in team of 5 during the 2023 XR brain jam
My contribution: coordinated the design of the app with other teammates and engineered the fine-tuning of an AI NPC that listens without judging

learn about colonizing saturn's moon

Built in Unity and deployed in oculus quest 2
Developer in team of 5 during the 2023 NASA Space Apps Challenge
My contributions: restructured the game design and programmed the core game loop and UI flow

learn about reducing carbon emission in ar

Built in Unity using Niantic ARDK 3.0 and deployed in iOS
Developer in team of 4 during the Niantic Real-World AR Challenge 2023
My contributions: prototyped the core game features in single player mode

vr travel agency

Built in Unity deployed in oculus quest 2
Developer in team of 3 for the final project of CircuitStream XR development course in 2022
My contributions: designed and developed one of the 3 scenes and integrated everone's work together

non-XR game Projects

the puzzle room

Built in Unity; click here to play 1/4 of the whole game in web browser
Team project with 3 other developers made during Unity Game Development Bootcamp
My contributions: designed and created 2 of the 5 scenes, including lifelike visual and sound effects, and led the integration of all team member's work

space shooter

Built in Unity; click here to play in web browser
Solo project made during Unity Game Development Bootcamp

jump guy

Built in Unity; click here to play in web browser
Solo project made during Unity Game Development Bootcamp

Bowling game

Built in Unity; click here to play in web browser
Solo project made during Unity Game Development Bootcamp

tic tac toe

Built in Unity; click here to play in web browser
Solo project made during Unity Game Development Bootcamp

software development Projects

pipeline for generating synthetic spctra

C++
In collaboration with the original author of the package
My contributions: transformed the package without affecting its original capabilities to extend its functionalities to hydrodynamical simulations with more complicated voxels

pipeline for measuring scintillation

Python
Solo project, done for a project within the Canadian Hydrogen Intensity Mapping Experiment Collaborations
Highlight: programmed the whole pipeline in an object-oriented, modular manner

citation search engine

Python
Solo project submitted for the streamlit hackathon
Techniques used: gpt3.5 API, similarity search