Mirai Guide: planning a day backwards from the thing you want
A wake-up time derived right-to-left from sellout risk, and the historical corpus that calibrates it.
↗Notes from building the things above
Lab
Engineering notes from the work itself — engine architecture, rendering, physics, extraction pipelines, navigation, and localization.
Lab15
Newest first
Mirai Guide: a globe of where people came from, without tracking anyone
Three separate device identities, ~100 km cells snapped before signing, and a telemetry disclosure that gates the deploy.
↗Mirai Guide: serving an event crowd on one SQLite database
D1 is a single-primary SQLite with a serial write queue. The question was never how to make it faster - it was how to make sure almost nothing ever talks to it.
↗Inside Mirai Guide: an offline-first event companion
How a loginless PWA, two Workers, and one hard rule about data keep a fan-run event guide trustworthy.
↗Mirai Guide: reading walkable floors from the map raster
Why booth-gap inference failed, and how color segmentation of the venue map gives me a navigation grid for A*.
↗WMMD architecture: a hostable MMD runtime
The engine is split into layered Rust crates with hard dependency rules, so the same code can drive an editor, an AR host, or an offline renderer.
↗WMMD rendering: a toon pipeline verified by golden images
Forward toon shading with WBOIT transparency, ESM shadows, SSAO and RT AO, IBL and bloom - plus the headless snapshot setup that keeps it honest.
↗Hatsune Miku V6 AI: a fault map from the weights and the renderer
Why Miku V6 AI sounds noisy above 2 kHz, stops at 16 kHz and resists tuning - measured only on the installed model weights and VOCALOID 6's own renders, with listening examples against Kagamine Rin V4X.
↗Mirai Guide: turning crowd reports into a stock signal
Trust-weighted consensus with a recency half-life, and the stale-sold-out death spiral it exists to prevent.
↗Mirai Guide: one survival curve behind every answer
Collapsing three disagreeing shopping orders into a single function of time, so the route, the headline, and the leave time finally agree.
↗Mirai Guide: extraction with a human veto
The ingestion pipeline that turns approved public sources into reviewed structure - and why booth codes are immutable.
↗Mirai Guide: three languages without a translation CMS
UI catalogs that fail loudly, i18n columns for structure, and reviewed model translation for the catalog.
↗Mirai Guide: anchoring booths to venue maps
Vision-assisted map review that stores normalized coordinates and hashes - never the uploaded bytes.
↗Mirai Guide: modeling the goods queue
A three-phase queue model where the sellout clock, not register counts, reveals booth throughput.
↗WMMD physics: three backends behind one interface
Bullet as the MMD-faithful reference, a pure-Rust fallback, a clean-room PGS solver, and an XPBD cloth engine - swappable at compile time.
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