About

I am a senior research scientist at Google Zurich, where I work on inverse rendering, digital humans and optical simulation. Before joining Google, I completed my PhD at EPFL's Realistic Graphics Lab, working under the supervision of Wenzel Jakob. My PhD thesis is on efficient and accurate physically-based differentiable rendering algorithms.

I obtained my bachelor at the University of Bern and my master from ETH Zurich, where I completed my master thesis at Disney Research. I worked as an intern for Facebook Reality Labs, Walt Disney Animation Studios and Disney Research.

Publications

GNM Head: A Generative aNthropometric Model of the human head

Stylianos Ploumpis, Jan Bednarik, Gaspard Zoss, Ruslan Guseinov, Luca Prasso, Prashanth Chandran, Oliver Boyne, Vasileios Choutas, Timo Bolkart, Daoye Wang, Menglei Chai, Di Qiu, Sebastian Winberg, Gilles Rainer, Lewis Bridgeman, Leonhard Helminger, Edo Collins, Delio Vicini, Jérémy Riviere, Yannick Boetzel, Alexander Koumis, Stylianos Moschoglou, Jay Busch, Cynthia Herrera, Jacob Still, Scott Ysebert, Peter Lincoln, Sergio Orts Escolano, Christoph Rhemann, Erroll Wood, Thabo Beeler, Stefanos Zafeiriou.

arXiv preprint arXiv:2607.23687, 2026.

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Radiance Caching for Differentiable Path Tracing

Ziyi Zhang, Delio Vicini, Sebastian Winberg, Stephan Garbin, Wenzel Jakob.

ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2026.

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Differentiable Polarized Path Tracing

Pramod Rao, Jérémy Riviere, Xilong Zhou, Abhijeet Ghosh, Abhimitra Meka, Thabo Beeler, Marc Habermann, Christian Theobalt, Delio Vicini.

European Conference on Computer Vision (ECCV), 2026.

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VEPHand: View-Efficient Photometric Hand Performance Capture at Scale

Zhengyang Shen, Kai-Hung Chang, Erroll Wood, Deying Kong, Bo Peng, Timo Bolkart, Jinlong Yang, Bowen Zhao, Danhang Tang, Sasa Petrovic, Emre Aksan, Jérémy Riviere, Vassilis Choutas, Delio Vicini, Jay Busch, Shichen Liu, Zhe Cao, Hugh Liu, JingJing Shen, Jonathan Taylor, Mingsong Dou.

arXiv preprint arXiv:2606.15966, 2026.

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Automated design of compound lenses with discrete-continuous optimization

Arjun Teh, Delio Vicini, Bernd Bickel, Ioannis Gkioulekas, Matthew O'Toole.

ACM SIGGRAPH Asia Conference Papers, 2025.

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StochasticSplats: Stochastic Rasterization for Sorting-Free 3D Gaussian Splatting

Shakiba Kheradmand*, Delio Vicini*, George Kopanas, Dmitry Lagun, Kwang Moo Yi, Mark Matthews, Andrea Tagliasacchi.

International Conference on Computer Vision (ICCV), 2025.

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Practical Inverse Rendering of Textured and Translucent Appearance

Philippe Weier, Jérémy Riviere, Ruslan Guseinov, Stephan Garbin, Philipp Slusallek, Bernd Bickel, Thabo Beeler, Delio Vicini.

ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2025.

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Vector-Valued Monte Carlo Integration Using Ratio Control Variates

Haolin Lu, Delio Vicini, Wesley Chang, Tzu-Mao Li.

ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2025.

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GroomLight: Hybrid Inverse Rendering for Relightable Human Hair Appearance Modeling

Yang Zheng, Menglei Chai, Delio Vicini, Yuxiao Zhou, Yinghao Xu, Leonidas Guibas, Gordon Wetzstein, Thabo Beeler.

Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2025.

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Solving Inverse PDE Problems using Monte Carlo Estimators

Ekrem Fatih Yilmazer, Delio Vicini, Wenzel Jakob.

ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia), 2024.

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LitNeRF: Intrinsic Radiance Decomposition for High-Quality View Synthesis and Relighting of Faces

Kripasindhu Sarkar, Marcel C. Bühler, Gengyan Li, Daoye Wang, Delio Vicini, Jérémy Riviere, Yinda Zhang, Sergio Orts-Escolano, Paulo Gotardo, Thabo Beeler, Abhimitra Meka.

ACM SIGGRAPH Asia Conference Papers, 2023.

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Differentiable Signed Distance Function Rendering

Delio Vicini, Sébastien Speierer, Wenzel Jakob.

ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2022.

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Dr.Jit: A Just-In-Time Compiler for Differentiable Rendering

Wenzel Jakob, Sébastien Speierer, Nicolas Roussel, Delio Vicini.

ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2022.

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Path Replay Backpropagation: Differentiating Light Paths using Constant Memory and Linear Time

Delio Vicini, Sébastien Speierer, Wenzel Jakob.

ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2021.

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A Non-Exponential Transmittance Model for Volumetric Scene Representations

Delio Vicini, Wenzel Jakob, Anton Kaplanyan.

ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2021.

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Mitsuba 2: A Retargetable Forward and Inverse Renderer

Merlin Nimier-David*, Delio Vicini*, Tizian Zeltner, Wenzel Jakob.

ACM Transactions on Graphics (Proceedings of SIGGRAPH Asia), 2019.

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A Learned Shape-Adaptive Subsurface Scattering Model

Delio Vicini, Vladlen Koltun, Wenzel Jakob.

ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2019.

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Denoising Deep Monte Carlo Renderings

Delio Vicini, David Adler, Jan Novák, Fabrice Rousselle, Brent Burley.

Computer Graphics Forum, 2019.

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Regularizing Image Reconstruction for Gradient-Domain Rendering with Feature Patches

Marco Manzi, Delio Vicini, Matthias Zwicker.

Computer Graphics Forum (Proceedings of Eurographics), 2016.

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