A 3D MEGAVERSE demo: The Eternal Brew — 8 named regulars exist in 3 SIMULTANEOUS time-versions (PAST sepia / PRESENT / FUTURE pastel) overlapping at the same coffee shop. Lily-2007 orders her first latte while Lily-2024 reads while Lily-2041 talks to her granddaughter. Like Before Sunrise meets Cheers across decades.
Built with:three.js r0.160 (single file)5 coffee shop areas + Timeline Fork Panel (PAST/PRESENT/FUTURE)localStorage Eternal Brew + READS 9+ other demo localStorage keys for crossover
#threejs#multiverse#autoplay
## What this is
A 3D recreation of The Eternal Brew, a fictional cozy coffee shop where past, present, and future versions of the same regulars overlap visibly at the same tables. Eight named regulars exist in THREE SIMULTANEOUS time-versions across five areas. Main Counter is the warm-amber espresso bar where Barista Pip pulls shots across all three eras. Window Nook is the rainy-blue afternoon table. Back Booth is the burgundy lamp-gold couples spot. Bay-Window Reading Nook is the sage corner where regulars with books gather. Patio is the sunlit ochre + ivy + chess players. Lily-2007 (broke college kid) orders her first latte at the counter while Lily-2024 (writer, novel in lap) reads at the window nook while Lily-2041 (white-haired, smiling) talks to her granddaughter on the patio — all three Lilys are visible simultaneously, color-graded into their own era. Whitford-2007 (broke college kid) buys a drip coffee. Whitford-2024 is the NEXLOGIC CEO from R18 office demo. Whitford-2041 is the grandfather who reminisces. Halloran cameos in the back booth doing crossword (he's just retired in 2041). Mrs. Pemberton, Doc Wendell, and Cordelia each have three versions visible. Each NPC has an era ring under their feet — sepia for past, full-color for present, pastel for future — that color-codes their timeline. The Timeline Fork Panel top-left shows three vertical rows (PAST/PRESENT/FUTURE) and HIGHLIGHTS when two versions of the same regular pass within 1.2 meters of each other — cross-timeline echo. Nineteen director cameras cycle.
The shop *remembers* — and so does the multiverse. localStorage saves under `eternal_brew_v1` (cycle, era offset, drama ladders), AND READ-ONLY loads from nine other demo localStorage keys (`meridian_mall_memory_v1`, `nexlogic_returns_v1`, `meridian_cruise_v1`, `auralis_court_v1`, `bramblestoke_brain_v1`, `whitfield_memorial_v1`, `dappleberry_farm_v1`, `echo_base_v1`, `stillwater_hold_v1`) and weaves THOSE events into the chyron. Each ten-minute reseed advances all three timelines by one decade.
You don't play it. You watch it. And it remembers across nine other demos.
## Why this is mind-blowing
The chyron is the secret weapon: "Cycle 4 — Lily-2024 finishes the same novel Mrs. Pemberton is doing as a jigsaw on the SS Meridian. Whitford-2007 orders his first espresso (free, on the house — Pip likes him). Whitford-2024 remembers the year the mall got the carousel." That single line stitches three timelines AND three other demos in one beat — Lily-2024 on the Window Nook close camera with the rain-light catching her novel's last page (drama ladder rung 3 of 4 "first novel finished"), Whitford-2007 on the Counter close camera with the unfamiliar-espresso-look as Pip slides it across (era ring sepia, recurring cast `recurring_cast_v1` adds "first espresso 2007" to Whitford's biography), and Whitford-2024 on the Back Booth close camera reading a Brimsworth Tribune article (chyron pulls "carousel" from `meridian_mall_memory_v1`, era ring full-color). Multiply that by twenty-four named souls each with a brain panel showing goal/need/have/plan/step/mood AND era badge, a Timeline Fork Panel showing all three eras with cross-timeline-echo proximity highlights, a CROSSOVER CHYRON reading nine other demos' memory in real time, a RECURRING CAST building Whitford's coherent biography across the multiverse, a DRAMA LADDER tracking four quiet-stakes arcs, and a MID-CYCLE TWIST where Lily-2024 leaves a note in a shelf book that's been there since 2007 (the book glows, camera switches to the bay-window nook, Lily-2041 reads the note as if she's seen it her whole life), and you've got a Before-Sunrise-meets-Cheers-across-decades stream that genuinely earns its multiverse scope. ALL FICTIONAL.
Prompt
Build a single-file HTML page that recreates "8 regulars existing in 3 simultaneous time-versions overlapping at a fictional coffee shop" as a continuous 3D autoplay world with MEGAVERSE crossover mechanics.
CONCEPT: THE ETERNAL BREW — fictional cozy coffee shop where past/present/future versions of the same regulars overlap visibly. Cozy time-travel tone (Before Sunrise meets Cheers).
Hard constraints:
- One HTML file, < 200KB.
- three.js r0.160.0 from unpkg, IIFE strict, reseed every ~10 min.
- First body line: <!-- ROUND19_MULTIVERSE v1 -->
- localStorage `eternal_brew_v1`.
All R16 + R17 + R18 spec retained. R19 NEW:
1. TIMELINE FORK PANEL — PAST/PRESENT/FUTURE rows
2. CROSSOVER CHYRON — read 9+ other demo localStorage keys
3. RECURRING CAST — Whitford × 3 time-versions, Halloran, Mrs. Pemberton
4. DRAMA LADDER — 4 quiet-stakes arcs
5. MID-CYCLE TWIST at 5min — Lily-2024 leaves note in book that passes between timelines
Tone: COZY time-travel. ALL FICTIONAL.
Paste this into Claude, Cursor, or Copilot. Change one thing that matters to you.
What I learned shipping it
How to render the SAME NPC in 3 time-versions visible simultaneously with era ring + tint coding
How to read 9+ other demo localStorage keys to power crossover chyron lines
How to do a mid-cycle twist where a physical object (a book) moves between timelines