Sadashige Ishida

Contact: sdsgisd(at)
Github: here
Linkedin: here
CV: Available, up on request.

More bubbles and curvatures here. [Source code]


About Me

Wecome! I research mathematics, physics, and computer graphics with focus on physics animation and optimization problems arising from nature. My research motivations are to make mathematical models that express fascinating natural phenomena and to open up new mathematical problems. As a game developer, I have developed algorithms for character animation and visual effects, and implement them as custom plugins of DCC tools and game engine features. Previously, I had developed algorithms for analyzing and visualizing microscopic data for microscopy and semiconductor lithography. I’m interested in a career in which I make mathematical models for physics animation or develop a physics/VFX pipeline.

Fields of interest


A Hyperbolic Geometric Flow for Evolving Films and Foams
Sadashige Ishida, Masafumi Yamamoto, Ryoichi Ando, Toshiya Hachisuka
ACM Transactions on Graphics (SIGGRAPH ASIA 2017)
Concept: A reformulation of soap film dynamics as a hyperbolic geometric flow.

Softwares and Demos

Evolving curves under different curvature flows.
[Brouser demo]
[Video (Youtube)]
[Source code (JavaScript)]
Bouncing particles in 2D.
[Video (Youtube)]
[Source code (C++)]
Stickers for LINE app.
In Japanese. It costs 120 yen (1 dollar approximately).
[Line app store]
Stable Fluids, Shallow Water Equations, and other fluid simulators. (Available soon).
Tiny bubbles' action in 2D (Available soon).

Working Experience / Education



Computer Related Natural Languages
Japanese (native), English (advanced), French (intermediate), German (elementary), Finnish (elementary)