This work is a video piece that was exhibited and screened as part of an ambient projection-mapping presentation at the EXPO Hall “Shine Hat” and the Popup Stage East Outside at Expo 2025 Osaka, Kansai. Taking as its motif the “EXPO 2025 Design System” IDs, affectionately known as “Komyaku” at Expo 2025 Osaka, Kansai, and with Kohta Hikichi, a representative member of the team that created it, serving as an advisor, we drew on the expertise in artificial-life ecological systems that HiRai has long been researching to create a real-time video simulation system and visuals. In producing the video, we referenced the design system’s history of being prototyped based on metaballs, and developed a real-time simulator in which the Komyaku behave as if they were alive while retaining the identity of the design itself. By using GPGPU to calculate the interactions among large numbers of Komyaku in real time, we built a system that can be flexibly expanded to support a wide range of possibilities, including interaction and the generation of one-of-a-kind videos. At the Popup Stage East Outside, we also took advantage of the architectural characteristics of a structure in which the projected image is interrupted by support columns, and created visuals that made it look as though each steel beam were packed full of Komyaku. We pursued video production that made the most of the characteristics of the projection surface. The name “Komyaku” naturally spread as a nickname referring to the IDs that make up the design system. Taking into account this derivative, fan-created cultural expansion, this work intentionally uses the term “Komyaku.”

I directed, photographed, and composed the music for BEAMS Future Archive × Asahina.

A spring that purifies the environment of our subconscious minds. Created with TouchDesigner. “Ripple Waves” was exhibited at NEW ENERGY (2023) and the Dalbin Table exhibition (2023). Background Music for Videos : https://www.bluetreeaudio.com

This work has been entered in “Shinjuku Creators Festa 2018”. It originated from the abstract image captured from people walking in Shinjuku, visualizing the image freely and flexibly. The city of Shinjuku itself, the buildings and people - they all seem to be heading in a certain direction, growing and developing. Though we are not quite sure what to make of these forms, we are simply struck by the beauty of their silhouette. Seeing that it shares a common concept with a chemical reaction formula called “reaction diffusion”, we have incorporated into this piece of work a spontaneously created cycle pattern using Houdini and TouchDesigner. Three different patterns of the work were presented on “Digital Signage EST VISION by LUMINE EST”. 「新宿クリエイターズ・フェスタ2018」出品作品。 新宿を歩く人々を抽象化して捉えたイメージを元に、自由に視覚化した作品です。 新宿という都市や建物、人々はどこかに向かって成長しているように見えるが、形成された姿はいったい何と言えるのかはまったくわからない、ただシルエットとして美しいと感じます。 その考え方はreaction diffusionという昔からある化学反応式ととても近かったので、自発的に生まれる周期パターンをHoudiniとTouchDesignerを併用し、表現の中に組み込みました。 「デジタルサイネージ EST VISION by LUMINE EST」で、３パターンの違った映像を展開しました。