Rain Blooms Lattice is a physical edition of five works accompanying the on-chain release of Rain Blooms on Art Blocks Studio. Each work is assigned a distinct cellular automaton algorithm developed as part of the step-by-step process toward the completed form of Rain Blooms. These algorithms run locally on a microcontroller embedded within an aluminum frame.
The LED matrix panel, mounted horizontally at the top of the frame, is intended to be viewed from above. The work does not display a recording. It computes its image continuously, frame after frame, for as long as it is powered on.
Rain Blooms is built on an original cellular automaton — a computational system in which cells arranged on a grid are updated in parallel according to the states of neighboring cells. There is no central controller. What appears on screen is not shaped from above, but generated from the accumulation of local interactions.
This cellular automaton extends the classical model in several directions: neighbor cells are not limited to immediate surroundings, but can be chosen randomly or according to a pattern; multiple species are defined with relations of attack, assimilation, and indifference; and each cell carries a vitality parameter that affects the outcome of conflict.
The five works of Rain Blooms Lattice are each assigned a distinct cellular automaton algorithm that developed progressively during the step-by-step process toward the completed form of Rain Blooms.
"What I designed is not a final image, but a small system of local rules. Sound and image change together, in real time, from the interactions of those rules — not from a result decided in advance."
— Kazuhiro Tanimoto
Examples of neighborhood configurations. The central cell (crimson) is updated according to the states of surrounding cells (black). Beyond the classical Moore and von Neumann shapes, Rain Blooms admits randomly chosen and extended neighborhoods.
Iterated evolution of a simple cellular rule from a single seeded cell. Even at this small scale, structure that was not specified in the initial condition emerges through repetition of one local rule.
A small number of monochromatic cells are placed on a 64×64 grid and treated as a single species. Color propagates to randomly assigned neighbors set at initialization — the foundational model for all that follows.
Hue is extended to two colors, each treated as a distinct species. Each cell is assigned a vitality value; competition between neighboring cells determines a winner, and the winning color takes the position.
Three to five hues are treated as multiple species and seeded in rectangular regions. Interaction occurs only when the hue difference is large enough — collisions, fragmentation, and sharp boundary formation become the dominant behavior.
Hue, saturation, and lightness are incorporated into the conflict outcome, making the result depend on the relationship between colors. Colors too far apart ignore each other; only cells within a certain hue range compete, producing more complex territorial dynamics.
Assimilation is added alongside competition — species gradually blend under certain conditions. Colors too close or too far apart do not interact; within a certain hue range, competition and blending coexist in the same space.
The housing is fabricated from aluminum extrusion — a material chosen for its structural precision and its neutral, industrial character. The frame makes no claim about the work's content; it holds the computation without ornamentation.
The LED panel is mounted at the top of the frame. The panel and the microcontroller board inside the housing together form a closed system — no external display device, no projector, no computer. The work runs entirely within the object.
Inside the aluminum frame sits a microcontroller board running the Rain Blooms algorithm natively. This is the same algorithm that drives the on-chain digital edition on Art Blocks Studio — but here it runs on dedicated hardware, without a browser, without a network, without any external dependency.
The board communicates directly with the LED matrix through a ribbon connector. At startup, the algorithm reads its parameter configuration and begins computing. Each frame is rendered in real time — there is no video file, no pre-rendered sequence, no storage medium that the work plays back from.
The digital edition (Art Blocks Studio) is a license to compute: the algorithm runs whenever the token owner opens their browser. Rain Blooms Lattice is a machine: it runs whenever it is powered on. Same code. Different material conditions.
Rain Blooms Lattice is a closed system. Once powered on, the work requires no network connection, no companion device, and no ongoing maintenance. The algorithm runs on the embedded microcontroller and renders directly to the LED matrix.
Because the work computes its image from local rules at the pixel level, each new startup under the same display configuration will produce the same evolution — identical parameters, identical behavior. The work is not random; it is deterministic from a fixed initial condition.
Each work is individually numbered (#1–#5) and unique in its parameter configuration. The panel size is fixed; the frame height comes in three options — 1×, 2×, or 3× the panel dimension.
USD/JPY ≈ 156.7 at time of writing
| Size | JPY | USD (approx.) |
|---|---|---|
| 1× height | ¥220,000 approx. US$1,400 |
US$1,400 |
| 2× height | ¥330,000 approx. US$2,100 |
US$2,100 |
| 3× height | ¥440,000 approx. US$2,800 |
US$2,800 |
The on-chain digital edition of 128 unique works on Art Blocks Studio is fully minted. Rain Blooms Lattice, the physical edition of 5 works, remains available for private acquisition.
Each physical edition is accompanied by a documentation package developed in accordance with the Matters in Media Art (MIMA) protocol — the conservation standard jointly authored by MoMA, SFMOMA, and Tate for time-based media art. The package addresses acquisition, documentation, loan, and long-term preservation.
Rain Blooms Lattice is a software-based work. Its identity resides in the algorithm, not the hardware. The documentation establishes which properties are work-defining and which may be adapted in future conservation without loss of authenticity.
Rain Blooms Lattice is a private-sale edition of five physical works. Enquiries are handled individually through NEORT++.
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