# Sahara Desert Dunes

## Scene Characterisation

| Property | Value |
|----------|-------|
| Environment | Outdoor |
| Domain | TERRAIN |
| Setting | Sahara Desert, sand dunes |
| Time of Day | Late afternoon / golden hour |
| Season | Arid / year-round |
| Weather | Clear |
| Mood | Vast, minimal, dramatic |

## Key Elements
1. **Massive sand dune** — towering dune with smooth windswept surface
2. **Human figures for scale** — tiny people on or near the dune showing enormous scale
3. **Shadow line** — sharp light/shadow boundary across the dune's curved surface
4. **Orange sand** — warm saturated sand colour under direct sunlight
5. **Blue sky** — clear sky contrasting with warm sand tones

## Brain Config
```bash
python -m brain \
    --reference benchmark/references/terrain/sahara-dunes/pexels-28829633-sahara-dunes.jpg \
    --domain TERRAIN \
    --llm claude --tier opus \
    --max-iterations 20
```

## What Success Looks Like
- Large dune geometry with smooth, wind-sculpted curves
- Sharp shadow line dividing lit and shaded faces of the dune
- Correct sand material — orange/golden colour, subtle granular texture at close range
- Strong sense of scale (dune should feel massive)
- High contrast between bright sunlit sand and deep shadow, with correct exposure handling

## Licensing
- **Category**: stock-free
- **License**: Pexels License (free for all purposes, no attribution required)
- **Source**: https://www.pexels.com/photo/majestic-sand-dunes-at-sunset-in-sahara-desert-28829633/
- **Photo ID**: 28829633
- **Photographer**: Unknown
- **Attribution Required**: No