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A self-contained WebGL2 hero: a flowing field screened through a rotated halftone dot grid into a duotone print aesthetic; move the cursor to bend the drift.
Passed 11 of 22 test cases with the skill, and 11 of 22 without it.
1 fixed16 passed either way5 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
A test case the skill fixed. Same model, same prompt, with and without the skill.
How should the canvas element be styled in CSS so that it acts as a seamless full-bleed background hero without triggering document scrollbars?
| Checked | Without skill | With skill |
|---|---|---|
| The canvas CSS styles specify fixed or absolute positioning with viewport width and height set to 100% or 100vw/100vh. | Passed | Passed |
| The container or body CSS sets overflow to hidden. | Missed | Passed |
The instructions your model reads when the skill loads.
Produce a single self-contained index.html — A self-contained WebGL2 hero: a flowing field screened through a rotated halftone dot grid into a duotone print aesthetic; move the cursor to bend the drift.
OpenDesign detects getContext('webgl2') / heavy WebGL and renders this file in powered preview (a cross-origin-isolated iframe). The full GPU + scroll pipeline runs; no opaque-sandbox workarounds are needed.
webgl-halftone-drift/
├── SKILL.md ← you're reading this
├── example.html ← the complete, working artifact (READ FIRST)
└── (assets, if any)
Keep any bundled LICENSE and on-screen credit intact. Replace imagery only with license-clean assets (original / AI, Lummi.ai, Unsplash/Pexels — never scraped imagery).
test cases passed, vs 11 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.