Guangyan Cai

Guangyan Cai

Ph.D. Student in Computer Science

University of California, Irvine


I am a first year Ph.D. student in Computer Science at UC Irvine School of Information and Computer Science, working with Prof. Shuang Zhao. I am interested in physics-based rendering and differentiable rendering.

I hold a B.S. degree in Computer Science from UC San Diego, where I worked with Prof. Ravi Ramamoorthi.


  • Computer Graphics


  • Ph.D. in Computer Science, 2020 - Present

    University of California, Irvine

  • B.S. in Computer Science, 2016 - 2020

    University of California, San Diego


Analytic Spherical Harmonic Gradients for Real-Time Rendering with Many Polygonal Area Lights

In this paper, we develop a novel analytic formula for the spatial gradients of the spherical harmonic coefficients for uniform polygonal area lights.