Work Experience

• JoyFun Game Entertainment | Taiwan | Oct. 2020 - Apr. 2023
  • Game Engine Software Engineer
  • Integrated NVIDIA RTX technologies for our upcoming action RPG Faith of Danschant: Hereafter.
  • Engine-level customizations (on Unreal) for the team, including physically based material, special effect, and tooling.
  • Worked closely with technical artists and applied my knowledge of 3D graphics to identify optimization opportunities for base assets.
• Taiwan ICDF | St. Kitts and Nevis | Sep. 2019 - Jul. 2020
  • Assistant Technician
  • Worked on land administration information system project; handled aid from Taiwan for COVID-19 in cooperation with the Embassy of Taiwan and local government.
  • Maintained and troubleshot IT systems situated in multiple offices nationwide.
  • Research: Generalized Radiant Energy Estimation from Geographic Information
• National Taiwan University | Taipei, Taiwan | Sep. 2017 - Feb. 2018
  • Teaching Assistant of Interactive Computer Graphics (ICG 2017 Fall)
  • Works include teaching, grading and set questions on exams.

Education

• National Taiwan University | Taipei, Taiwan | Feb. 2017 - Aug. 2019
  • M.S., Dept. of Computer Science and Information Engineering
  • Thesis: Density Estimation Techniques for Robust Light Transport Simulation, advisor: Ming Ouhyoung, Ph.D.
  • Proposed a new global illumination algorithm that is able to capture all possible light transport paths.
  • Thesis, PDF (9.4 MB). Note that colleborations are welcomed to further push the performance of the proposed method.
• National Taiwan University | Taipei, Taiwan | Sep. 2012 - Feb. 2017
  • B.S., Dept. of Mechanical Engineering
  • Recipient of the Presidential Award in 2014 and 2016.
  • Research on computational fluid dynamics (vortex method), advisor: Mei-Jiau Huang, Ph.D., and finite element analysis (microfluidic device), advisor: Han-Ming Chen, Ph.D.

Publications & Projects

• Photon: A Modular, Research-Oriented Rendering System | ACM SIGGRAPH 2019 | Aug. 2019
  • Introducing the design of my renderer and comparing it to existing solutions.
  • Link to ACM Digital Library; authors: Tzu-Chieh Chang, Ming Ouhyoung
• Photon Renderer | 2016 - present
  • Non-trivial physically based render engine with advanced materials.
  • Self-designed scene description language and API.
  • With editor for rendering, plugin for Blender, CLI for server and much more.
• Tokzin Game Engine | 2014 - 2016
  • Physically based forward & deferred renderer based on OpenGL.
  • Features include: dynamic light & shadow, IBL, SSAO, FXAA, Lens Flare, HDR bloom, normal & parallax & relief mapping, volumetric lighting, etc.
• Programming Tutorials on YouTube
  • Around 30 episodes of Java programming tutorials (the top search result using “Java Tutorial” in Mandarin as the keyword).
  • One of the most popular tutorials among Taiwanese, Hongkonger, and Chinese viewers.
• More Projects on my Portfolio

Computer Skills

• Programming: C, C++, C#, CUDA, FORTRAN, Graphics APIs, Java, Python, Shading Languages
• Software: Blender, CMake, Git, Perforce, Unreal Engine
• Misc: CI/CD, Computer Graphics, Game/Engine Development, Global Illumination Algorithms, OOP, UI, Unit Testing

Languages

• Mandarin: native speaker
• English: GEPT High-Intermediate Level (2018), Golden Certificate of TOEIC (2010)