Hongtu Xu

Hongtu Xu

Undergraduate in Computer Science and Technology

ShanghaiTech University


I am a fourth-year undergraduate student at ShanghaiTech University majoring in computer science and technology. My research interests lie in computer graphics subfields, particularly physically-based rendering and physical simulation. I have developed a high-performance volume renderer for a new-generation CAE software. Currently, I am working on efficient aeroacoustics simulation at FLARE Lab advised by Prof. Xiaopei Liu and collaborated with Prof. Changxi Zheng.

Download my resumé .

  • Computer Graphics
  • Rendering
  • Physical Simulation
  • High Performance Graphics Systems
  • B.Eng in Computer Science and Technology, 2023

    ShanghaiTech University

Honors and Awards

The 2020 International Collegiate Programming Contest Asia Yinchuan Regional
The 2020 International Collegiate Programming Contest Asia Nanjing Regional


Advisor: [Prof. Xiaopei Liu](https://faculty.sist.shanghaitech.edu.cn/faculty/liuxp/) and [Prof. Changxi Zheng](http://www.cs.columbia.edu/~cxz/)
Computer Graphics Research Asistant
Oct 2021 – Present Shanghai
  • Efficient Aeroacoustics Simulation:
    • Proposed a 3D overset grid method under cumulant LBM by extending a 2D derivation
    • Improved accuracy of transition between grid boundaries using a compact second-order interpolation
    • Improved precision of fictitious force using half-force correction
    • Contributed to the first work that directly simulates acoustics in turbulent flows in computer graphics
    • Preparing for paper submission to a premier venue in computer graphics (e.g. SIGGRAPH 2023)
FLARE Lab @ShanghaiTech University, Advisor: Prof. Xiaopei Liu
Computer Graphics Research Asistant
Jun 2021 – Apr 2022 Shanghai
  • High Performance Realistic Volume Rendering:
    • Led and designed a modularized architecture to support acceleration with CUDA and OptiX
    • Proposed a bitmask-based volume stack to efficiently handle multiple mixing participating media
    • Implemented several state-of-the-art methods in SIGGRAPH papers for transmittance estimation
    • Integrated into a piece of new-generation CAE software in a startup company as its rendering module
ShanghaiTech University
Teaching Assistant (CS171 Computer Graphics I)
Sep 2021 – Jan 2022 Shanghai

Responsibilities include:

  • Writing frameworks of 3 homeworks: OpenGL, basic ray tracing and global illumination
  • Holding recitation classes
ShanghaiTech University
Teaching Assistant (CS100 Introduction to Programming)
Feb 2021 – Jun 2021 Shanghai
ShanghaiTech University
Teaching Assistant (SI100B)
Sep 2020 – Jan 2021 Shanghai
Teaching Assistant of SI100B Introduction to Information Science and Technology