Measured entry
cultui-hero-dithering
hero-effectdark-futuristicmotion on file
A client-side React hero that pairs a responsive split layout with an animated dithering shader. It ships as a compound component with editable heading, description, CTA, badges, and visual slots, and depends on the shader package plus shadcn-style Button, Badge, Tailwind theme classes, path aliases, and a cn utility.



Measured
Every value below was written by the harness on the run that produced the frames above. None of it is derived from the prose.
| Build | OK |
|---|---|
| Mount | OK |
| Console errors | 0 |
| Uncaught page errors | 0 |
| Horizontal overflow | clean at 375, 768, 1440 |
| Axe critical | 0 |
| Axe serious | 1 |
| Axe moderate | 2 |
| Axe minor | 0 |
| Gzip marginal | 41.6 KB (107.0 KB build, 65.4 KB baseline) |
| Bare mode | FAIL |
| Provider required | NO |
| Demo used | written from the component source API |
What the harness recorded
BARE BUILD
✗ Build failed in 29.60s error during build: [vite:load-fallback] Could not load <sandbox>/src/lib/utils (imported by src/cut/components/ui/hero-dithering.tsx): ENOENT: no such file or directory, open '<sandbox>/src/lib/utils'
Verdict
It mounts cleanly in the configured harness and stays contained across the tested layouts, but it is not a portable drop-in: it needs a shadcn-style setup. Budget for contrast fixes, motion preferences, and the shader dependency before shipping.
Use it if
- You want a dark split hero where editable copy, a CTA, badges, and an animated dither shader ship as one composition.
- Your app already uses Tailwind and shadcn conventions, and you want separate shader controls for compact and wide layouts.
- You need compound subcomponents and render hooks to replace the CTA or badge treatment without rebuilding the visual.
Skip it if
- You need a lightweight static hero and do not want a shader runtime added to the client bundle.
- Your design system does not provide shadcn-style Button, Badge, path aliases, theme tokens, or a cn helper.
- You need an accessibility-clean drop-in; the verified rendering has text contrast issues that require design adjustment.
- You cannot accommodate continuous motion or do not plan to add a reduced-motion alternative.
Install
| Declared dependencies | @paper-design/shaders-react, radix-ui |
|---|---|
| Missing on install | none |
| Bare install | fails once the shadcn-style helpers are removed, so it needs that setup |
| Provider | no provider required in the harness |
In a non-shadcn project, add the shader package and Radix UI, recreate compatible Button and Badge components, provide the cn class-merging helper and path aliases, and map the Tailwind theme tokens and custom font utilities used by the component.
Source and credit
This page is a review, not a copy. The component source lives with its author and this site does not republish it. Read the license before you use anything.
Author repository
github.com/nolly-studio/cult-uiAlternatives
Other published entries for the hero-effect pattern, ordered by what they measured: mounts first, then clean axe scans, then bare-mode passes, then the smaller bundle.
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