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Measured entry

motion-primitives-progressive-blur

hover-effectspatialmotion on file

A client-side React overlay that builds a directional progressive blur from stacked masked Motion layers. It ships as a shadcn registry TypeScript component and depends on Motion, Tailwind utility classes, and the usual cn helper imported through the project alias.

Specimen
Motion capture of the mounted demo, recorded by the harness. No audio track.
Harness screenshot of motion-primitives-progressive-blur at 375 pixels wide
Harness screenshot at 375 pixels wide. No horizontal overflow recorded.
Harness screenshot of motion-primitives-progressive-blur at 768 pixels wide
Harness screenshot at 768 pixels wide. No horizontal overflow recorded.
Harness screenshot of motion-primitives-progressive-blur at 1440 pixels wide
Harness screenshot at 1440 pixels wide. No horizontal overflow recorded.

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.

Harness measurements recorded for motion-primitives-progressive-blur
BuildOK
MountOK
Console errors0
Uncaught page errors0
Horizontal overflowclean at 375, 768, 1440
Axe critical0
Axe serious0
Axe moderate0
Axe minor0
Gzip marginal66.4 KB (131.8 KB build, 65.4 KB baseline)
Bare modeFAIL
Provider requiredNO
Demo usedwritten from the component source API

What the harness recorded

BARE BUILD

✗ Build failed in 27.45s
error during build:
[vite:load-fallback] Could not load <sandbox>/src/lib/utils (imported by src/cut/progressive-blur.tsx): ENOENT: no such file or directory, open '<sandbox>/src/lib/utils'

Verdict

A focused, composable blur overlay that builds and mounts cleanly in its intended environment. It needs a shadcn-style setup because the bare project cannot resolve its shared utility import, so it is best for teams already using that structure.

Use it if

  • You need a directional blur fade over an image, video, or scrolling surface.
  • Your interface already uses Motion and a shadcn-style utility setup.
  • You want to animate the blur layer through standard Motion div props.

Skip it if

  • You need a self-contained package that works without project aliases or utility helpers.
  • You do not want to add Motion for a narrowly scoped visual effect.
  • You need the effect to create its own layout without supplying dimensions and surrounding content.
  • Your browser support policy excludes masked backdrop filters.

Install

Installation record for motion-primitives-progressive-blur
Declared dependenciesmotion
Missing on installnone
Bare installfails once the shadcn-style helpers are removed, so it needs that setup
Providerno provider required in the harness

In a non-shadcn project, install Motion, provide or replace the cn class-merging helper, configure the project import alias, and ensure the Tailwind utility classes are available. Supply explicit sizing and positioning where the overlay is used.

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/ibelick/motion-primitives
License
MIT
Record published
2026-08-13

Alternatives

Other published entries for the hover-effect pattern, ordered by what they measured: mounts first, then clean axe scans, then bare-mode passes, then the smaller bundle.