A 3D MEGAVERSE demo: Bramblecrest Wedding 3 Paths — the same fictional wedding plays out in 3 alternate timelines simultaneously: PLANNED, CHAOTIC, and PERFECT. Captain Crunch the husky is the ring-bearer. At minute 5, Timeline 1's cake topples in sympathy with Timeline 2's. Like Four Weddings meets Sliding Doors meets Bridgerton.
Built with:three.js r0.160 (single file)5 venues × 3 timeline lanes with tinted floor strips + sky-tone blendslocalStorage Wedding 3 Paths + crossover chyron from 4+ other demos
#threejs#multiverse#autoplay
## What this is
A 3D recreation of Bramblecrest Wedding 3 Paths, a fictional wedding day that plays out in three alternate timelines simultaneously laid along the Z-axis with tinted floor strips and sky-tone blends. Five sub-worlds along the X-axis: Chapel (stained glass + altar), Garden Aisle (white chairs + floral arch), Reception Tent (long table + chandeliers + 3-tier cake), Dance Floor + Band (parquet + drums/mic/guitar + spotlights + disco ball), Garden Maze (hedges + photo bench + floral wall + tripod). Three timelines: T1 PLANNED (sage/green floor strip — the day everyone rehearsed), T2 CHAOTIC (ember/coral floor strip — Captain Crunch the husky lost the rings, cake pre-tilted, wrong song playing), T3 PERFECT (rose/gold floor strip — magical day, everyone glows). Eight archetypes × 3 timelines = 24 named: Lily Bramble (bride), Tomas Field (groom), Mira Quill (maid of honor), Gus Brennan (best man), Rev. Holcomb (officiant), Flora & Petra Bramble (twin flower girls), Margo Penrose (photographer), Beatrix Tide-Lattimer (planner). Plus FIVE recurring cast: Uncle Cornelius Whitford toasts the couple, Inspector Halloran provides wedding security, Mrs. Diana Pemberton brings jigsaw piece #424 of the SS Meridian set as the wedding gift (!), Bytes the orange tabby chaperones from the chapel windowsill, Captain Crunch the husky is the ACTUAL RING-BEARER with golden rings on a velvet pillow. 110 named + ambient total. Nineteen director cameras include officiant POV, cake-cam T2, cake-cam T3, twin-flower-girls, dog POV (Captain Crunch's nose-cam), multiverse-leak T1 cake, splitscreen 3-way, and wide establish. The TIMELINE FORK PANEL at the top shows three horizontal strips of the same beat in three versions with the canon timeline highlighted by a ✦.
The wedding *remembers*. localStorage saves `wedding_3paths_v1` (cycle/canon/beat/joy/chaos/cake/dog/rings/song/leaked/log) AND read-only loads four other demo keys (`meridian_cruise_v1`, `stillwater_hold_v1`, `penguin_polar_v1`, `multilayer_books_v1`) for crossover chyron. Each ten-minute reseed picks a new canon timeline.
You don't play it. You watch it. And it remembers across four other demos.
## Why this is mind-blowing
The chyron is the secret weapon: "Cycle 4 — Mrs. Pemberton hands Lily a wrapped jigsaw — piece 424, completing the SS Meridian set. Captain Crunch trots down the T2 aisle with the rings on his pillow. T2 cake has tilted to 38% — Margo's camera pivots." That single line stitches three timelines AND a crossover demo in one beat — Mrs. Pemberton on the Garden Aisle T1 close camera with the wrapped jigsaw catching the sage-green light (chyron pulls SS Meridian piece-423 from `meridian_cruise_v1`, recurring cast pemberton +1, drama ladder rung "the perfect gift"), Captain Crunch on the dog-POV camera trotting down the T2 ember-coral aisle with the rings shaking on the pillow (recurring cast captain_crunch +1, drama ladder "dog has rings: TRUE", interaction sparkle as Lily-T2 laughs), and Margo Penrose on the cake-cam T2 close camera with the cake at 38° tilt and frosting starting to slide (drama ladder cake teeter rung 6 of 8 "ohhh"). The mid-cycle twist is the heart: at minute 5, T1's cake (which was supposed to stay perfect) topples IN SYMPATHY with T2's. The chyron fires "MULTIVERSE LEAK". The area title flashes. Joy spikes — everyone in T1 LAUGHS, because the leak is funny, not tragic. Photographer Margo gets the photo of the year. Captain Crunch barks twice. Mrs. Pemberton smiles knowingly. Multiply that by 110 named souls each with brain panels (8 archetypes × 3 timelines + 5 recurring + 80 ambient + 30 pool), 5 venue sub-worlds × 3 timeline lanes, 19 director cameras with cake-cam and dog-POV, a TIMELINE FORK PANEL with canon highlighted, a DRAMA LADDER tracking cake-teeter % + dog-has-rings + wrong-song + leak + joy peak, a CROSSOVER CHYRON reading four other demos, and a multiverse-leak mid-cycle twist where T1's cake topples in sympathy with T2's, and you've got a Four-Weddings-meets-Sliding-Doors-meets-Bridgerton stream that genuinely earns its multiverse scope. ALL FICTIONAL.
Prompt
Build a single-file HTML page that recreates "the same fictional wedding playing out in 3 alternate timelines simultaneously" as a continuous 3D autoplay world with MEGAVERSE crossover mechanics.
CONCEPT: BRAMBLECREST WEDDING 3 PATHS — Four-Weddings-meets-Sliding-Doors-meets-Bridgerton tone.
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 `wedding_3paths_v1`.
All R16+R17+R18 spec retained. R19 NEW:
1. TIMELINE FORK PANEL — 3 horizontal strips top, canon highlighted with ✦
2. CROSSOVER CHYRON — read 4+ other demo localStorage keys
3. RECURRING CAST — Whitford, Halloran, Pemberton, Bytes, Captain Crunch RING BEARER
4. DRAMA LADDER — cake teeter %, dog has rings, wrong song, leak, joy peak
5. MID-CYCLE TWIST at 5min — T1 cake topples in sympathy with T2
Tone: COZY wedding. ALL FICTIONAL.
Paste this into Claude, Cursor, or Copilot. Change one thing that matters to you.
What I learned shipping it
How to lay 3 alternate timelines on the Z-axis with tinted floor strips so they're simultaneously visible
How to use a per-timeline cake-cam + dog-POV + officiant-POV camera rotation for emotional variety
How to fire a multiverse-leak twist where one timeline's cake topples in sympathy with another