I am Chrystiano Araújo, a Research Scientist at Roblox on the CoreAI team. My work lies at the intersection of Geometry Processing and AI, where I design novel user-centric tools that empower end users to easily create and customize 3D shapes. I have been particularly interested in developing systems that enable users to generate fully customized avatars and their related 3D ecosystem to match personal preferences and style goals. Prior to joining Roblox, I completed my Ph.D. at the University of British Columbia under the supervision of Prof. Alla Sheffer . My doctoral research focused on designing easy-to-use Shape Editing tools, with contributions to 3D and 2D Shape Editing, Decomposition, Computational Manufacturing, VR Drawing, and Parametrization.
News
05-2025
- Our paper, "Intersection-free Garment Retargeting", was accepted at SIGGRAPH 2025.
06-2024
- I am joining Roblox as a Research Scientist on the CoreAI team.
08-2023
- Our paper, "Slippage-Preserving Reshaping Of Human-Made 3D Content", was accepted at SIGGRAPH Asia 2023.
06-2023
- During this summer, I will be working as a Research Intern at ROBLOX Research. I will be mentored by Derek Liu and Victor Zordan on a Geometric Stylization project.
03-2022
- Our paper, "As-Locally-Uniform-As-Possible Reshaping of Vector Clip-Art", was accepted at SIGGRAPH 2022.
09-2021
- Our paper, "AdaptiBrush: Adaptive General and Predictable VR Ribbon Brush", was accepted at SIGGRAPH Asia 2021.
10-2020
- Our paper, "DHFSlicer: Double Height-Field Slicing For Milling Fixed Thickness Materials", was accepted at SIGGRAPH Asia 2020.
04-2020
- During this summer, I will be working as a Research Intern at Adobe Research. I will be mentored by Giorgio Gori on a Shape Deformation project.
07-2019
- Our Surface2Volume paper on assemblable decomposition for fabrication was accepted at SIGGRAPH 2019. Come to our talk on July-31.
Publications
Intersection-free Garment Retargeting
Slippage-Preserving Reshaping of Human-Made 3D Content
As-Locally-Uniform-As-Possible Reshaping of Vector Clip-Art
AdaptiBrush: Adaptive General and Predictable VR Ribbon Brush
DHFSlicer: Double Height-Field Slicing for Milling Fixed-Height Materials
Surface2Volume: surface segmentation conforming assemblable volumetric partition
Methodology for geomechanically controlled transmissibility through active natural fractures in reservoir simulation
Quadrilateral Mesh Generation with Deferred Constraint Insertion
Teaching Experience
CPSC 436D: Game Programming - 2018W (Teaching Assistant)
CPSC 418: Parallel Computation - 2017W (Teaching Assistant)
Professional Experience
Roblox (September, 2024 - Current)
Tecgraf / PUC-Rio (2012 - 2017)
- Mesh Processing
- Computational Geometry
- Mesh Visualization
Tecgraf / PUC-Rio (2010 - 2012)
- 3D Rendering of massive CAD models (desktop)
- 3D Rendering of CAD models in web browsers