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Hello, Iโ€™m Changyong ๐Ÿฑโ€๐Ÿ

๐ŸŒŸ
Changyong Song | Ph.D. Candidate @ Vanderbilt | Physics-based Animation, Simulation, AI

Hello, Iโ€™m Changyong Song โ€” or just CHAYO, if you prefer.

I dream of exploring and designing diverse virtual worlds that feel as expressive and dynamic as the real one.
Currently, my research spans visual perception, physics-based animation, and AI-driven simulation, with a focus on bridging low-level physical dynamics and high-level perceptual understanding. I work across multiple modalitiesโ€”including video, simulation outputs, and temporal signalsโ€”to build intelligent systems that not only analyze motion, but also generate physically plausible, perceptually meaningful experiences.
๐Ÿ‘‹ Contact Me!
โœ‰๏ธ Email :
chang-yong.song@vanderbilt.edu
๐Ÿ”—ย LinkedIn :
www.linkedin.com
https://www.linkedin.com/in/chang-yong-song-b77862192/
โฏ๏ธย Media/Code:
Chayoso - Overview
Ph. D. Student @ Vanderbilt (23. Fall ~ ). Chayoso has 3 repositories available. Follow their code on GitHub.
https://github.com/Chayoso
Chang-Yong Song
Share your videos with friends, family, and the world
https://www.youtube.com/@chang-yongsong1997
Education :
๐Ÿซ Vanderbilt Univ. (2023. 8. ~ Current) Ph.D. Candidate, Computer Science
๐Ÿซ Korea Univ. (2021. 3. ~ 2023. 2) Master of Science, Computer Science and Engineering
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Thesis: MPM-Based Angular Animation of Particles using Polar Decomposition Theory
๐Ÿซ Kwangwoon Univ. (2015. 3. ~ 2021. 2) Bachelor of Science, Software
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Grade Scholarship: 6, 7th semester
๐Ÿ“ƒ CV/Resume :
โ–ถ Click to download my full curriculum vitae.
๐Ÿ“ƒ Portfolio:
โ–ถ Click the image below to open the full PDF
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Publications
Phase Field/Manifold-based Gaussian Splats Crack Simulation
On the Structural Failure of Chamfer Distance in 3D Shape Optimization
CulinaryCut-VLAP: A Vision-Language-Action-Physics Framework for Food Cutting via a Force-Aware Material Point Method
PhysMorph-GS: Render-Guided Volumetric Morphing with Differentiable Physics

๐Ÿ‡TVCG Teaser Video:

Rendering results:
Sphere to Bunny & Duck to Cow:
D to Dragon:
A Differentiable Material Point Method Framework for Shape Morphing
Abstract :
Rendering results:
Sand particle example:
Snow with Car:
Primitive Rectangle (vs MPM):
MPM-Based Angular Animation of Particles using Polar Decomposition Theory
Lava Simulation based on Wax
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Working/Internship Experiences
CLO Virtual Fashion, LLC @ NYC
Percept @ Berkeley
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Grad School Projects
Abstract:
Automated Verification of Neural Network-Based Image Classifier for Stability Assurance in Graphics Rendering
Sequence-Based Facial Emotion Recognition using EfficientNet and LSTM
Compressible Flow Implementation with FeniCS
Machine Learning Algorithms Implementation
Volume Rendering using GLSL
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Undergrad School Projects
๐Ÿง  What I Built
Implemented various real-time physics simulations using OpenGL and Unity 3D , focusing on deformable bodies and cloth-like behavior using the Mass-Spring System.
๐Ÿงฑ Key Projects
๐Ÿงต Cloth Simulation
๐ŸŸ  Sphere Deformation
๐Ÿชข Spring-Mass System
Physics Simulation using Mass-Spring System & Deformation
Curve Implementation
๐ŸŽฏ Overview
Developed multiple graphics demos using OpenGL, demonstrating object transformation, lighting, and rendering techniques with various mathematical frameworks.
๐Ÿงฑ Core Features
โœ… Object Transformation & Illumination
๐Ÿ’ก Ray Tracing
OpenGL
๐ŸŽฎ Project Overview
Designed and implemented core gameplay elements in Unity 3D, including character motion, particle effects, and enemy AI behaviors.
๐Ÿงฑ Key Features
๐Ÿงโ€โ™‚๏ธ Character Motion
๐Ÿ’ฅ Particle Effects
๐Ÿ‘น Raid Monster AI (Raid Hunter)
Unity 3D Game Development: Motion & Particle FX Design
๐ŸŽฎ Project Overview
Designed a fully immersive VR gameplay experience using Unreal Engine 4, focusing on monster pattern design, level/map layout, and player-environment interaction in a virtual space.
๐Ÿงฑ Key Features
๐Ÿง  Monster Pattern Design
๐Ÿ—บ๏ธ Map / Level Design
๐Ÿงฉ VR Mechanics
VR Game Design using Unreal Engine 4
๐ŸŽฏ Mission
Clear all dots within the time limit by strategically connecting same-colored dots.
๐Ÿ› ๏ธ What I Built
Developed a real-time puzzle game inspired by Two Dots, where the objective is to reduce all remaining dots to zero.
Implemented core gameplay mechanics: dot matching, chain elimination, combo detection, and time-based challenge system.
Designed intuitive UI and grid system for visualizing dot connections using a custom rendering loop.
Added mission tracking, real-time countdown, and animated feedback for player actions.
Two Dots-Inspired Puzzle Game
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Teaching Assistant
Subject Name
Duration of work
Institution
Computer Graphics
Open
2021/03/02 โ†’ 2021/06/25
Korea Univ.
C Language
Open
2021/03/02 โ†’ 2021/06/25
Korea Univ.
Computer Colloquium
Open
2021/03/02 โ†’ 2021/06/25
Korea Univ.
Special Topic
Open
2023/08/21 โ†’ 2024/12/06
Vanderbilt Univ.
Deep Learning
Open
2024/01/08 โ†’ 2024/05/01
Vanderbilt Univ.
Computer Architecture
Open
2024/08/22 โ†’ 2024/12/10
Vanderbilt Univ.
Aritificial Intelligence
Open
2025/01/07 โ†’ 2025/05/01
Vanderbilt Univ.
Seminars (Korean)
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Stormscapes: simulating cloud dynamics in the now (22. 5)
[220512]_PaperSeminar_.pdf
3074.1KB
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Simulating Fracture with Material Points (22.9)
[220901]_Paper_Seminar_Simulating Brittle Fracture.pdf
2734.8KB
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