# 아웃풋 자체가 일종의 시스템으로

Canonical URL: https://jeanyoon.ch/oi/texts/banpo-xism-artist-notes-2025-07-07
Type: essay / research note
Author: Jeanyoon Choi (최정윤)
Date: 2025-07-07

## Full text

A summary

Interaction on the phone

A high-precision 3D digital twin map is given. When you put a finger on each location and touch or move it, the city and its buildings grow (flat 2D to 3D). Like an instrument. And every interaction leaves parameters (like an instrument: (a, b, c)). These parameters are combinations of location, building and interaction coordinates. They combine with one another in different ways and affect each output screen sporadically.

The 3D model surveys an intersection. A slight bird's-eye POV: not a street view stuck to the ground, but surveying the intersection from 10 to 20 metres (TBD) above the ground. I touch this city (I stroke the city). Then the city, flat at first like a 2D map, gradually gains volume. And I play this city. Reference: Christian Marclay and the AR examples, "instrumental interaction".

Output screens

Several, multi-channel. Affected in real time by the mobile interaction. Not using every coordinate and aspect of the mobile interaction, but carefully combining specific coordinates well.

The output channel: temporal, cumulative (TBD). "Going Forward": every interface keeps moving forward, existing on a time axis. Route 66: a desert road, a POV that keeps moving forward, gradually accumulating spectacle. Maps stacking up layer upon layer. Words and strings moving forward. CCTV plus conveyor.
- Advantage: an intuitive expression of "temporality".
- Disadvantage: how do I express "systemic-ness"? The time axis restricts the visual options.

The superposition and systematisation of multiple interactions

The most important thing is that the output must not react passively to the user's interaction; the output itself must work as a kind of system. Continuous emergence, updating, an ecosystem. One interaction: an immediate response. Two or more interactions: the system gradually grows more complex.

The superposition of waves; complex patterns generated from combinations of simple patterns. Agent-based modelling. Point, line, plane: the gradual increase of dimension (the void vs. one intersection vs. N intersections). In the end, the city of Yeongdeungpo is completed not as one cross-section but as a superposed combination of many different cross-sections (or it keeps developing endlessly, without completion).

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Jeanyoon Choi (최정윤) is a Korean computational artist and researcher (b. 1999), PhD candidate at KAIST XD Lab, making multi-device web artworks. Profile: https://jeanyoon.ch/oi. Index: https://jeanyoon.ch/llms.txt.