{
  "schemaVersion": 1,
  "id": "bauhaus-love",
  "version": "1.0.0",
  "status": "published",
  "kind": "background",
  "title": "A Love Triangle",
  "summary": "A red circle and a black triangle chase each other round a blue spring and a yellow doorway, then four shapes lock into one heart. A Bauhaus poster in motion.",
  "description": "A kinetic poster in the Bauhaus manner, printed in primary inks on warm ivory paper with a fine grain and small registration marks. A red circle and a black triangle fall, rebound and chase each other around a cobalt spring and a yellow doorway. After a beat of anticipation the four shapes settle into a single architectural heart that holds to the last frame. There is no text, and the film has no settings.",
  "role": "Shader film (three.js): Bauhaus kinetic poster, a finished 8-second portrait film with no settings.",
  "collections": [
    "impossible-worlds",
    "satisfying"
  ],
  "tags": [
    "bauhaus",
    "poster",
    "geometric",
    "shapes",
    "circle",
    "triangle",
    "heart",
    "primary colours",
    "kinetic poster",
    "love",
    "paper grain",
    "motion graphics",
    "portrait film"
  ],
  "synonyms": [
    "bauhaus animation",
    "geometric love story",
    "shapes forming a heart",
    "circle and triangle animation",
    "retro poster animation",
    "valentine animation"
  ],
  "useCases": [
    "A Valentine, anniversary or wedding title card",
    "An opening sting for a design or architecture channel",
    "A graphic, calm backdrop for a quote or an announcement"
  ],
  "featured": null,
  "publishedAt": "2026-10-10",
  "implementation": {
    "target": "three",
    "runtime": "browser",
    "language": "javascript",
    "module": "esm",
    "entry": "src/bauhaus-love.js",
    "exports": [
      {
        "name": "createBauhausLove",
        "signature": "createBauhausLove() => { scene, camera, setSize(width, height), update(time), dispose() }",
        "description": "The film as one full-screen shader; render its scene with its camera straight to the canvas."
      }
    ],
    "reusable": [
      "src/bauhaus-love.js"
    ],
    "demo": "demo.js",
    "harness": "index.html"
  },
  "dependencies": [
    {
      "id": "three",
      "version": "0.185.1",
      "reason": "Renderer and a full-screen shader material."
    },
    {
      "id": "apw-runtime",
      "version": "1.0.0",
      "scope": "demo",
      "reason": "Demo harness."
    }
  ],
  "params": [],
  "presets": [],
  "output": {
    "width": 1080,
    "height": 1350,
    "fps": 30,
    "durationSeconds": 8,
    "posterSeconds": 5.5,
    "alpha": false,
    "motion": "procedural",
    "loop": {
      "seamless": false,
      "method": "A one-shot film: it builds to a finished picture that holds to the last frame, so the end does not return to the start."
    },
    "seed": null
  },
  "composition": {
    "inputs": "The time in seconds, 0 to 8. The film has no other settings.",
    "outputs": "An opaque full-frame picture, already in display colours: render it straight to the canvas.",
    "coordinates": "Composed for a 4:5 portrait frame and measured by the frame height: in a wider frame the picture stays centred at full height and its background fills the sides; in a narrower one, such as 9:16, the sides are cropped.",
    "lighting": "None: flat printed inks on ivory stock with a fine paper grain and registration marks.",
    "timing": "The shapes fall and rebound, the circle and triangle chase each other round the spring and doorway, then all four lock into a heart that holds to the end.",
    "compatibleWith": [],
    "notes": [
      "No text, fonts or image files: every shape is computed from the time.",
      "The ink colours are fixed: cream, red, cobalt, yellow and black.",
      "Every pixel is a function of the time alone, so frames can be rendered in any order."
    ]
  },
  "reuse": [
    "Valentine clip: play the whole film; the heart is in place by about 5.5 s and holds.",
    "Poster-style intro: stop on the held heart and set your title in the empty paper at the bottom.",
    "A \"styles of print\" reel: cut it beside the other Impossible Worlds posters."
  ],
  "integration": {
    "newProject": "Create a WebGLRenderer on a canvas (no antialiasing), call createBauhausLove() once and film.setSize(width, height); then for each frame call film.update(timeInSeconds) and renderer.render(film.scene, film.camera).",
    "existingProject": "Copy src/bauhaus-love.js, which needs only three. Render film.scene with film.camera into your own canvas or render target; the output is opaque and already in display colours, so use no tone mapping or colour conversion."
  },
  "performance": {
    "notes": "One full-screen fragment shader. About 3 ms a frame at 1080 by 1350 on an integrated Intel GPU (Iris Xe), and under a second a frame with software WebGL.",
    "limits": "Plays at 30 frames a second at full size on an integrated GPU."
  },
  "limitations": [
    "The film is finished: it has no settings. To change colours or timing, edit the shader.",
    "It is composed for a 4:5 portrait frame.",
    "The end does not return to the start, so repeating it is a hard cut."
  ],
  "license": {
    "spdx": "MIT",
    "notice": "Copyright (c) 2026 AI Pixel Wizard. Released under the MIT License. See LICENSE in this folder.",
    "thirdParty": []
  },
  "provenance": "From the owner's collection Twenty Impossible Worlds: the original GLSL ES 3.00 shader of the film “A Love Triangle”, created with ChatGPT / Codex and used as published, wrapped for AI Pixel Wizard as a three.js full-screen shader in October 2026. The collection's synthesised soundtrack is not part of this ingredient.",
  "changelog": [
    {
      "version": "1.0.0",
      "date": "2026-10-10",
      "notes": "Initial release."
    }
  ]
}