Bio
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I am currently a PhD student at the Center for Visual Computing at UC San Diego, advised by professor Ravi Ramamoorthi and also working with professor Tzu-Mao Li. My research primarily focuses on physically based rendering, especially forward&inverse light transport simulation and sampling problems.
Previously, I obtained my bachelor's degree in CS from the University of Hong Kong and worked a bit on knowledge-based question answering systems.
I have had the fortune to intern at Adobe Graphics Research and Meta Reality Labs for the past couple of summers, working with amazing mentors and colleagues.
Before PhD, I worked as a rendering research engineer at ZJU-Manycore Tech joint Lab of CG&AI, led by Dr. Rui Tang and Prof. Rui Wang, where I mainly worked on our self-developed Render Engine FF (aka fast and furious :P), Monte Carlo sampling, denoising and other graphics related topics. During the interest exploration phase of my undergraduate, I spent half a year in freezing Ottawa, Canada, working on unified model language, and also spent a short time at Alibaba and Sensetime on stream processing and face recognition, respectively.
Research
I am mainly interested in physically-based rendering, especially light transport simulation, stochastic sampling and learning approaches for appearance modelling etc. Recently I'm very interested in optimization problems.![](images/bing_egsr.png)
Bing Xu, Tzu-Mao Li, Iliyan Georgiev, Trevor Hedstrom, Ravi Ramamoorthi
Computer Graphics Forum (Proceedings of Eurographics Symposium on Rendering), 2024
Best Paper Award
project page / paper / code (coming)
Incremental re-rendering of scenes in a common senario where only a small portion is moving or edited (e.g. the main character hanging around in an open world).
Formulating the difference between two frames as a (correlated) light-transport integral.
Devising sampling strategies to focus on paths with non-zero residual-radiance contribution and tailoring appropriate
path mappings.
We welcome increased attention to the exploration and potential optimization of the
residual path integral and, overall, the re-rendering problem.
![](images/yashtog.png)
Yash Belhe, Bing Xu, Sai Praveen Bangaru, Ravi Ramamoorthi, Tzu-Mao Li
ACM Transactions on Graphics (TOG), 2024
project page / paper
Yash's great work on importance sampling real-valued derivates, enabling better recovery of spatially varying textures through GD-based inverse rendering.
![](images/neusample.png)
Bing Xu, Liwen Wu, Miloš Hašan, Fujun Luan, Iliyan Georgiev, Zexiang Xu, Ravi Ramamoorthi
ACM SIGGRAPH, 2023
project page / paper / code
A simple toolbox composed of three approaches to efficiently importance sample neural SVBRDFs, potentially facilitating the broader adoption of neural material models in production.
![](images/teaser.jpg)
Bing Xu, Junfei Zhang, Rui Wang, Kun Xu, Yong-liang Yang, Chuan Li, Rui Tang
ACM Transactions on Graphics (TOG), ACM SIGGRAPH Asia, 2019
project page / paper / code
Denoising Monte Carlo renderings by better utilizing the first bounce auxiliary features and adversarial loss.
Gallery
, if it can be called A Gallery.... I do some drawing and painting when I'm struggling with research. I might stop doing research once my paintings start making money - you know, the best-case scenario I can think of, after the painter's death.
These photos were taken randomly so the resolution may not be good.