Vibe Coding a 3D Vue Component Library in 4 Days: Imagination Over Code

Why Mainstream Component Libraries All Look the Same

Mainstream libraries like Ant Design, Element Plus, and Arco Design offer nearly identical component sets: buttons, forms, tables, modals, dropdowns, date pickers, tabs, and notifications. They are practical and usable, but not cool . The author argues this uniformity stems from cost structure, not lack of desire for beautiful components.

Basic Button (solid/outline) : Development cost 30 minutes, visual complexity low, library inclusion probability 100%

3D Glass Button (halo animation) : Development cost 1-2 days, visual complexity high, library inclusion probability 0%

Form Input : Development cost 1 hour, visual complexity low, library inclusion probability 100%

Particle Background : Development cost 2-3 days, visual complexity high, library inclusion probability 0%

Data Table : Development cost 1-2 days, visual complexity medium, library inclusion probability 100%

3D Card Flip : Development cost 1-2 days, visual complexity high, library inclusion probability 0%

The 0% column is the problem. High visual complexity + high development cost = zero inclusion, because ROI favors utilitarian components. Every library converges on pragmatism .

A Single Button's 417 Lines of CSS: The "Too Time-Consuming" Barrier

The first component in vue-threeui, CircleButtons, has three variants, each with intricate visual details:

Play variant — Dark Glass : semi-transparent charcoal face with backdrop-filter: blur(50px); edge mask via mask-image: linear-gradient(170deg, #000, transparent 50%); internal rotating halo using conic-gradient on a 3.6s infinite loop; hover swaps halo for centered radial highlight.

Plus variant — Amber Gradient : three-stop gradient #fde68a → #fcd34d → #f59e0b; box-shadow: 0 4px 0 #b45309 simulates physical base thickness; press triggers translateY(2px) with shadow shortening simultaneously.

Mail variant — Dotted Border : four corner dots fly in sequentially with 210ms incremental delay; dashed border expands from four sides using repeating-linear-gradient; hover fills with #25358b and icon becomes opaque.

Total: 417 lines of CSS, 0 lines of JavaScript animation . All done with CSS transitions and animations. Previously, parameter tuning alone (blur radius, rotation period, shadow offset, etc.) could consume a full day per variant because there are no standard answers — each value requires write-run-inspect-tweak cycles.

AI Changes the Equation: From "Writing Code" to "Describing Scenes"

In 2026, AI coding tools (Cursor, Claude Code, Codex, Pi Agent) handle bulk implementation. The key insight: AI doesn't change what a good component is; it changes how long it takes to build a cool one.

Before: mental image → hand-write 417 lines CSS → tweak parameters all day → give up. Now: mental image → describe to AI → AI generates → you say "halo faster, blur to 30px" → AI revises → 30 seconds later see new result.

The "imagination to reality" path compresses the middle "tweak all day" to minutes.

Concrete Example: CircleButtons Development Loop

Author's prompt: "I want a button that looks like dark glass. Surface semi-transparent, faintly showing blurred background behind. Edge has light but not uniform — bright top-left, dark bottom-right. Inside a halo slowly rotates."

AI's first output (excerpt):

.circle-button__face {
  background: rgba(23, 23, 23, 0.7);
  backdrop-filter: blur(50px);
  box-shadow: inset 2px 4px 16px rgba(255, 255, 255, 0.06);
}
.circle-button__rim {
  border: 1px solid rgba(255, 255, 255, 0.25);
  mask-image: linear-gradient(170deg, #000, transparent 50%);
}
.circle-button__aura {
  background: conic-gradient(from 180deg,
    rgba(255, 255, 255, 0.012) 180deg,
    rgba(255, 255, 255, 0.05) 360deg);
  filter: blur(15px);
  animation: orbit 3.6s linear infinite;
}

First version achieved ~80% of desired effect. Remaining 20% refined via rapid "describe → AI edits → inspect" loops, each taking minutes. Previously a day of tuning now takes ~30 minutes.

Component Library Author's Competitive Edge Shifts from "Coding" to "Imagination"

Historically, a library author's moat was implementation prowess: virtual scrolling, drag-and-drop, cross-browser date pickers. Today, AI writes most implementation (Vite config, TypeScript exports, props docs, 400-line CSS animations). The new moat is imagination — specifically:

Visual Aesthetic : distinguishing 50px vs 30px blur, judging whether 3.6s or 5s rotation feels more "breathing".

Design Decomposition : breaking a complex effect into "three layers + four animation steps".

Description Precision : articulating the mental image so AI can execute it.

Vibe Coding Intuition : rapidly converging in the "inspect → describe → adjust" loop.

These are cognitive, not mechanical, skills. The author spent more time thinking clearly than writing code. Before coding each component, he answered: What is the visual memory point? How many structural layers? What interaction states? What easing curves? AI cannot answer these; they are pure imagination work.

Standard Libraries Are No Longer Enough

Element UI suffices for admin panels, but aesthetic expectations have grown. Five years ago rounded buttons with shadows were pretty; three years ago gradients and micro-animations; now developers see Three.js particle systems, ray tracing, physics simulations and want them in projects. No mainstream library provides these because commercial logic dictates building only the greatest common denominator. The gap between "most projects don't need it" and "I want it" is the AI-era opportunity: supply-side cost dropped from 2 days to 2 hours, so previously "not worth it" components become viable. vue-threeui targets scenarios craving visual impact — landing pages, brand sites, creative showcases — not data-heavy admin apps.

From Imagination to npm install : The 4-Day Timeline

Day 1 : Scaffolding. Vite library mode (ES + UMD), component directory conventions, docs site skeleton. AI handled infrastructure in minutes.

Day 2 : First component. CircleButtons three variants. Author described visuals; AI wrote CSS. Result: 417 lines CSS, 0 JS animation.

Day 3 : Scaffolding script create-component for future components; docs site became a live "debug console" with real-time variant switching, theme, hue/saturation/lightness adjustment.

Day 4 : Polish + publish. npm run build:lib outputs ES Module + UMD + type declarations. npm publish → npm install vue-threeui works.

Total calendar span: 4 days (previously 1-2 weeks). Actual AI coding time: half a day. The rest was clarifying intent. AI eliminated the "imagination to implementation" middle cost.

Vibe Coding: The New Core Skill for Library Authors

Coined by Andrej Karpathy: "describe what you want, AI codes, you inspect, describe adjustments." No line-by-line review; driven by feel. Many think it's only for demos, but for visual components, Vibe Coding is natively suited because correctness is directly visible. You don't read 417 lines of CSS to verify; you look at the button — is the halo too fast? Is the glass texture convincing? Is press feedback crisp? The loop: See → Describe → AI Edits → See Again .

Thus the author's core competencies become:

Visual Aesthetic

Design Decomposition

Description Precision

Vibe Coding Intuition

None are "writing code." Yet the author still reads and learns the generated code to maintain ability to prompt effectively; AI is not an excuse to stop learning.

Current Limitations of vue-threeui

Only one component so far : CircleButtons is the sole released component. useThreeRenderer composable exists but true Three.js 3D components not started.

AI-generated code needs human review : redundant selectors, missing prefers-reduced-motion accessibility media query (added manually). Vibe Coding ≠ "don't look at code"; safety nets remain the author's responsibility.

Description cost is non-trivial : AI writes 417 lines CSS, but you must precisely describe "dark glass mask edge is 170° linear gradient." If your imagination is fuzzy or description vague, AI cannot help.

Limited applicability : Dark glass buttons suit landing pages, brand sites, creative showcases — not admin dashboards or data-dense apps where Element UI remains better.

What This Means for Senior Frontend Engineers (5+ Years)

Those "cool but too time-consuming" component ideas in your head? You can build them now. Not "someday" — today. AI + Vibe Coding brings "imagination to reality" cost within individual reach. No team, no 2+ weeks, no all-day parameter tuning needed.

Your accumulated aesthetic judgment, design sense, and "I know what this effect should feel like" intuition — previously stuck at "I think it's pretty" — can now become npm install -ready components.

The real AI transformation for component libraries isn't "building libraries faster"; it's "expanding what libraries can contain."

Start Your Own Imagined Component Library

Open IDE, create project, let AI scaffold framework: Vite library mode, component conventions, scaffolding script — half a day max.

Build one component you've always wanted : that Three.js particle effect, that Dribbble 3D card, that "too cool but too much work" animated button.

Describe to AI, inspect, tweak parameters, describe again. That's Vibe Coding. You'll find 80% done in 2 hours instead of a day.

Final Summary

Back to the opening question: after years of frontend, do you have component effects you wanted but never built? Old answer: "Forget it, too much time." New answer: "Let me try."

AI didn't change the standard of a good component. It changed the answer to "how long to build a good component" — from weeks to days, from team to solo.

The bottleneck shifted from "can I code it?" to "can I imagine it?"

It becomes a question of desire and vision, not capability. This shift returns the library author's competitive edge to its essence: not who pulls more all-nighters coding, but whose mental canvas is richer and more creative. vue-threeui is just one experiment: 4 days, currently two components, one framework. But the path from imagination to npm install is now open. What follows is simply "do I want to" and "how do I imagine it."

Core Shift : In the AI era, component library competitiveness isn't "who writes more code" but "who has cooler mental pictures." Your imagination — ready to ship? I'm on the way. Are you?