{"id":"paper-birds","version":"1.0.0","title":"Paper Birds, Real Shadows","summary":"Three folded paper cranes rest in afternoon light. Their shadows escape, become a living flock and return to the paper. Ray-traced origami. Loops.","kind":"background","target":"three","collections":["impossible-worlds","hypnotic-loops"],"tags":["origami","paper","crane","birds","shadows","flock","paper craft","afternoon light","minimal","calm","zen","animal","loop","portrait film"],"loopable":true,"motion":"procedural","durationSeconds":12,"status":"published","media":{"poster":"https://aipixelwizard.com/media/paper-birds/1.0.0/poster.webp","preview":"https://aipixelwizard.com/media/paper-birds/1.0.0/preview.mp4","sample":"https://aipixelwizard.com/media/paper-birds/1.0.0/sample.mp4","sampleBytes":681222,"sampleNote":"Pre-rendered with the default settings. Customised settings must be exported locally (npm run render)."},"urls":{"page":"https://aipixelwizard.com/visuals/paper-birds","manifest":"https://aipixelwizard.com/api/v1/visuals/paper-birds/versions/1.0.0","agentMd":"https://aipixelwizard.com/registry/paper-birds/1.0.0/agent.md","files":"https://aipixelwizard.com/registry/paper-birds/1.0.0/","demo":"https://aipixelwizard.com/registry/paper-birds/1.0.0/index.html"},"description":"Three origami cranes, orange, red and white, sit on warm paper in a slanting shaft of afternoon sun. Their softly projected shadows slip free, split into a flock of small birds that circles above the cranes, then fly back and settle into the shadows. The cranes are ray-traced triangular meshes with properly projected shadows, and the flock is animated bird by bird. The 12 seconds loop. The film has no settings.","role":"Shader film (three.js): Origami shadow theatre, a finished 12-second portrait film with no settings.","useCases":["A calm, minimal title backdrop for a wellness or design brand","A stationery or paper-goods brand intro","A peaceful loop for a meditation or study video"],"synonyms":["origami cranes animation","paper crane shadows","flock of birds from shadows","paper birds","origami loop","shadow birds"],"digest":"a3fa3665cb65dcc439f68b8848cfb056226cb76f8dbd6c587352d1cfbcef2b00","implementation":{"target":"three","runtime":"browser","language":"javascript","module":"esm","entry":"src/paper-birds.js","exports":[{"name":"createPaperBirds","signature":"createPaperBirds() => { 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/paper-birds.js"],"demo":"demo.js","harness":"index.html"},"dependencies":[{"id":"three","version":"0.185.1","scope":"source","reason":"Renderer and a full-screen shader material."},{"id":"apw-runtime","version":"1.0.0","scope":"demo","reason":"Demo harness."}],"uses":[],"usedBy":[],"params":[],"presets":[],"output":{"width":1080,"height":1350,"fps":30,"durationSeconds":12,"posterSeconds":7,"alpha":false,"motion":"procedural","loop":{"seamless":true,"cycleSeconds":12,"method":"Every part of the film is a function of the time modulo its length, and every motion completes whole cycles, so the last frame meets the first."},"seed":null},"composition":{"inputs":"The time in seconds, 0 to 12. 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":"A warm slanting shaft of afternoon sun across the paper, with soft projected shadows.","timing":"The shadows slip free from about half a second in, form a flock through the first four seconds, circle until about nine seconds, then return to the cranes.","compatibleWith":[],"notes":["The cranes are ray-traced triangular meshes, not drawn shapes.","It is one of the heavier films: about 45 ms a frame on an integrated GPU.","Every pixel is a function of the time alone, so frames can be rendered in any order."]},"reuse":["Wellness intro: the flock rises from about 1 s and circles until about 9 s.","Seamless loop: the birds settle back into the shadows, so it repeats cleanly.","Quiet backdrop: the empty paper at the top and bottom holds a title."],"integration":{"newProject":"Create a WebGLRenderer on a canvas (no antialiasing), call createPaperBirds() once and film.setSize(width, height); then for each frame call film.update(timeInSeconds) and renderer.render(film.scene, film.camera).","existingProject":"Copy src/paper-birds.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 46 ms a frame at 1080 by 1350 on an integrated Intel GPU (Iris Xe), and about 8 s a frame with software WebGL.","limits":"Real-time playback at full size needs a discrete or recent integrated GPU; on weaker graphics use the rendered video, or draw into a smaller canvas."},"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.","Its length is fixed at 12 seconds; repeat the loop to fill a longer clip."],"license":{"spdx":"MIT","notice":"Copyright (c) 2026 AI Pixel Wizard. Released under the MIT License. See LICENSE in this folder.","thirdParty":[]},"rights":{"approvedForPublicRelease":true},"provenance":"From the owner's collection Twenty Impossible Worlds: the original GLSL ES 3.00 shader of the film “Paper Birds, Real Shadows”, 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."}],"verification":{"testedOn":"2026-10-10","inputs":{"paper-birds@1.0.0":"a3fa3665cb65dcc439f68b8848cfb056226cb76f8dbd6c587352d1cfbcef2b00","three@0.185.1":"664ca387e5fab46ff2daaa6895e1d015426850891af5ea5082cbbcc3985b068c","apw-runtime@1.0.0":"5be859cdac74823ba0bcc32c6daf06688a871104d24db5d4ceaffffd84d7c40d"},"environment":"Chrome 154.0.8037.97 headless on Linux 7.0.0-38-generic (x64), Node 22.14.0","renderer":"WebGL 2 via SwiftShader (software)","width":1080,"height":1350,"fps":30,"frames":360,"renderSeconds":4154.8,"loopCheck":{"checked":true,"seamless":true,"maxDifference":0,"note":"Frame 0 vs end state (progress 1): mean |Δ| 0.0000, max |Δ| 0 of 255."},"determinism":{"checked":true,"identical":true},"errors":[],"media":{"poster":"/media/paper-birds/1.0.0/poster.webp","preview":"/media/paper-birds/1.0.0/preview.mp4","sample":"/media/paper-birds/1.0.0/sample.mp4","sampleBytes":681222}},"files":[{"path":"LICENSE","size":1072,"sha256":"8a5f3a96f07e11522ec4bdd0a583356f99bad1245920f9709cee09b995a45153","contentType":"text/plain; charset=utf-8","url":"https://aipixelwizard.com/registry/paper-birds/1.0.0/LICENSE"},{"path":"asset.json","size":5919,"sha256":"cdb29e012810dbef28f9971999c9ac2608aa06f12693e098373e042da6daef90","contentType":"application/json; charset=utf-8","url":"https://aipixelwizard.com/registry/paper-birds/1.0.0/asset.json"},{"path":"demo.js","size":673,"sha256":"7e5bdbe9d0452b256e76a20848c92aea4ab48a394ca264c5b804876b6660303c","contentType":"text/javascript; charset=utf-8","url":"https://aipixelwizard.com/registry/paper-birds/1.0.0/demo.js"},{"path":"index.html","size":539,"sha256":"3741735c5aec5bb5285d5f72b6a5de3ecc341e8a67a5c826d64e43dc6f8d1103","contentType":"text/html; charset=utf-8","url":"https://aipixelwizard.com/registry/paper-birds/1.0.0/index.html"},{"path":"src/paper-birds.js","size":8776,"sha256":"11c48bf726ac01292c2625f9a013496b3e677c695d3ad6197c91f8b23f60475f","contentType":"text/javascript; charset=utf-8","url":"https://aipixelwizard.com/registry/paper-birds/1.0.0/src/paper-birds.js"}],"warnings":[]}