My-opencode-config nextjs-image-art-direction

Next.js Image: Art Direction

install
source · Clone the upstream repo
git clone https://github.com/flpbalada/my-opencode-config
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/flpbalada/my-opencode-config "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/nextjs-image-art-direction" ~/.claude/skills/flpbalada-my-opencode-config-nextjs-image-art-direction && rm -rf "$T"
manifest: skills/nextjs-image-art-direction/SKILL.md
source content

Next.js Image: Art Direction

Art direction means showing completely different images based on viewport size — not just resizing the same image. Common use cases include homepage carousels with different assets for mobile vs desktop, switching from landscape (desktop) to portrait (mobile), or showing cropped vs full compositions.

Art Direction vs Responsive Images

ApproachPurposeImplementation
Art DirectionDifferent image content/composition
<picture>
with multiple
<source>
elements
Responsive ImagesSame image, different sizes
sizes
prop with
srcset

Use Art Direction When:

  • Homepage carousels with different images for mobile and desktop (e.g., square images on mobile, wide banner on desktop)
  • Mobile shows portrait crop, desktop shows landscape
  • Different focal points for different screen sizes
  • Completely different compositions are needed
  • Content hierarchy changes between breakpoints
  • Different image assets optimized for each viewport (e.g., mobile-optimized JPEGs vs desktop quality)

Use Responsive Images When:

  • Same image works at all sizes
  • Only the dimensions change
  • Standard responsive behavior is sufficient

Implementation with
getImageProps()

The

getImageProps()
function (stable since Next.js 14.1.0) generates the necessary props without calling React
useState()
, making it ideal for art direction.

Step-by-Step Implementation

import { getImageProps } from 'next/image'

export default function ArtDirectedImage() {
  // Common props shared across all image versions
  const common = { 
    alt: 'Mountain landscape', 
    sizes: '100vw' 
  }
  
  // Desktop version (landscape, higher quality)
  const {
    props: { srcSet: desktop },
  } = getImageProps({
    ...common,
    src: '/hero-desktop.jpg',
    width: 1440,
    height: 875,
    quality: 80,
  })
  
  // Mobile version (portrait, smaller dimensions)
  const {
    props: { srcSet: mobile, ...rest },
  } = getImageProps({
    ...common,
    src: '/hero-mobile.jpg',
    width: 750,
    height: 1334,
    quality: 70,
  })
  
  return (
    <picture>
      {/* Desktop: min-width 1000px */}
      <source media="(min-width: 1000px)" srcSet={desktop} />
      
      {/* Mobile: min-width 500px */}
      <source media="(min-width: 500px)" srcSet={mobile} />
      
      {/* Fallback img element (rendered if no media query matches) */}
      <img {...rest} style={{ width: '100%', height: 'auto' }} />
    </picture>
  )
}

Key Implementation Details

Props to Vary by Breakpoint:

  • src
    : Different image file
  • width
    /
    height
    : Different dimensions
  • quality
    : Different compression levels

Common Props (Shared):

  • alt
    : Accessibility text (must work for all versions)
  • sizes
    : Responsive size hints for browser

HTML Structure:

  • <picture>
    wrapper element
  • <source>
    elements with
    media
    attribute for each breakpoint
  • <img>
    element last as fallback (required)

Breakpoint Strategy

Order matters! The browser uses the first matching

<source>
. List from largest to smallest (desktop-first) or smallest to largest (mobile-first).

Desktop-First (Largest to Smallest)

<picture>
  <source media="(min-width: 1000px)" srcSet={desktop} />
  <source media="(min-width: 500px)" srcSet={tablet} />
  <img {...rest} style={{ width: '100%', height: 'auto' }} />
</picture>

Mobile-First (Smallest to Largest)

<picture>
  <source media="(max-width: 499px)" srcSet={mobile} />
  <source media="(max-width: 999px)" srcSet={tablet} />
  <img {...rest} style={{ width: '100%', height: 'auto' }} />
</picture>

Common Pitfalls

⚠️ Cannot Use
preload
or
loading="eager"

These would cause all images to load immediately, defeating the purpose of art direction:

// BAD: Would load both desktop and mobile
getImageProps({
  src: '/desktop.jpg',
  preload: true, // Don't do this!
})

// BAD: Same problem
getImageProps({
  src: '/desktop.jpg',
  loading: 'eager', // Don't do this!
})

Solution: Use

fetchPriority="high"
if you need to prioritize the LCP image:

const common = { 
  alt: 'Hero image',
  fetchPriority: 'high', // Only load the matching image eagerly
}

⚠️ Alt Text Must Work for All Versions

The

alt
text is shared across all image versions. Make sure it accurately describes all possible images:

// BAD: Only describes desktop version
const common = { alt: 'Wide panoramic mountain landscape' }

// GOOD: Describes both versions
const common = { alt: 'Mountain landscape with snow-capped peaks' }

⚠️ Cannot Use
placeholder
Prop

getImageProps()
doesn't support the
placeholder
prop because the placeholder would never be removed. Handle loading states manually if needed.

⚠️ Ensure Images Exist for All Breakpoints

Missing images will cause broken image icons on certain devices. Always test on actual devices or browser dev tools with different viewport sizes.

Complete Example: Hero Section

import { getImageProps } from 'next/image'

export default function Hero() {
  const common = { 
    alt: 'Team collaboration in modern office',
    sizes: '100vw',
    fetchPriority: 'high',
  }
  
  // Large desktop: Full office scene
  const { props: { srcSet: desktop } } = getImageProps({
    ...common,
    src: '/hero-office-wide.jpg',
    width: 1920,
    height: 1080,
    quality: 85,
  })
  
  // Tablet: Focused team shot
  const { props: { srcSet: tablet } } = getImageProps({
    ...common,
    src: '/hero-team-focused.jpg',
    width: 1024,
    height: 768,
    quality: 80,
  })
  
  // Mobile: Single person portrait
  const { props: { srcSet: mobile, ...rest } } = getImageProps({
    ...common,
    src: '/hero-person-portrait.jpg',
    width: 750,
    height: 1334,
    quality: 75,
  })
  
  return (
    <section className="relative">
      <picture>
        <source media="(min-width: 1200px)" srcSet={desktop} />
        <source media="(min-width: 768px)" srcSet={tablet} />
        <source media="(min-width: 500px)" srcSet={mobile} />
        <img 
          {...rest} 
          className="w-full h-auto object-cover"
          style={{ maxHeight: '80vh' }}
        />
      </picture>
      <div className="absolute inset-0 flex items-center justify-center">
        <h1 className="text-white text-4xl font-bold drop-shadow-lg">
          Welcome to Our Platform
        </h1>
      </div>
    </section>
  )
}

Advanced: CSS Background Images

You can use

getImageProps()
to optimize background images with
image-set()
:

import { getImageProps } from 'next/image'

function getBackgroundImage(srcSet = '') {
  const imageSet = srcSet
    .split(', ')
    .map((str) => {
      const [url, dpi] = str.split(' ')
      return `url("${url}") ${dpi}`
    })
    .join(', ')
  return `image-set(${imageSet})`
}

export default function HeroBackground() {
  const {
    props: { srcSet },
  } = getImageProps({
    alt: '',
    width: 1920,
    height: 1080,
    src: '/hero-bg.jpg',
    quality: 80,
  })
  
  const backgroundImage = getBackgroundImage(srcSet)
  
  return (
    <main 
      style={{ 
        height: '100vh', 
        width: '100vw',
        backgroundImage,
        backgroundSize: 'cover',
        backgroundPosition: 'center',
      }}
    >
      <h1>Content Here</h1>
    </main>
  )
}

Quick Reference

DO

  • Use
    getImageProps()
    for multiple image versions
  • Share
    alt
    and
    sizes
    across all versions
  • Order
    <source>
    elements correctly (first match wins)
  • Use
    fetchPriority="high"
    for LCP images (not
    preload
    )
  • Test on actual devices or responsive mode in dev tools
  • Ensure all image files exist for defined breakpoints

DON'T

  • Use
    preload
    prop (loads all images)
  • Use
    loading="eager"
    (loads all images)
  • Use
    placeholder
    prop with
    getImageProps()
  • Write alt text that only describes one version
  • Forget to include the final
    <img>
    element
  • Use art direction when simple responsive images suffice

References