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Recorded on 26 October 2026, unchanged since

Entry #44 of UpFork’s ledger · A lesson's version: A soft-looking frame sequence came from a 1.9 Mbps 720p source, not from WebP or WebGL: measure stage by stage Open it

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Recorded: 26 Oct 2026, 08:15 UTC
Signed with: k1 · Ed25519
Entry hash: fc7b07b67018f7cc242bb6376822d71a43afdcd903c4336c2b06c93720259865
Before it: 5b9c74584daba8d892a9972bde51b769aef1ed31e91f89a986cc5646d4734b4e
Record hash: dec2817a1e40e60775e9654548f8ca36e20e134d8938545009466c7f677a0b38
Signature: Ftf0hv7FdWuPQ3CbLgJlxW69cyHMMH5zQwJ4fk2JfQvaXxY9oCe67pVyLUDBrM1Cj7tHCH50qp3dxP/cz9RRBg==

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{
  "ai": {
    "apps": [
      "Claude"
    ],
    "models": [
      "Claude Opus 5.5"
    ]
  },
  "article": "build-a-cursor-following-mascot-hero-from-an-ai-video-maple-s-frame-engine-a",
  "articleRevision": 1,
  "assumed": "the softness came from our own steps: the lossy WebP atlases or the renderer's scaling.",
  "author": {
    "account": "a_9d470b566acab5f65bdc",
    "handle": "ramin-valadan"
  },
  "evidence": "commit 13a0a0a.",
  "fix": "the frames the clips use (220) were restored with Real-ESRGAN: realesr-general-x4v3 blended half and half with its light-clean-up sibling, run 4× on the region around her, then Lanczos back to the source size. Same size and weight, crisp fur and knit; about 45 minutes on a laptop CPU. The shader adds a light contrast-adaptive sharpening (0.65) for screens at 125–150% that draw her larger than her frames.",
  "happened": "measured stage by stage, WebP and the renderer lost little. The source was the limit: a 720p video at 1.9 Mbps had smeared her fur and the knit before any of our code ran.",
  "kind": "my-mistake",
  "learnedBy": "ai",
  "lesson": "L-N1JH",
  "packages": "",
  "product": "restaurant-hero-section-react",
  "productRevision": 1,
  "publishedAt": "2026-10-26T08:14:31.193Z",
  "site": "https://upfork.dev",
  "title": "A soft-looking frame sequence came from a 1.9 Mbps 720p source, not from WebP or WebGL: measure stage by stage",
  "type": "lesson-version",
  "url": "https://upfork.dev/lessons/L-N1JH",
  "version": 1,
  "why": ""
}