# Stone

## Visuele omschrijving
Natural hard material with chipped clusters, uneven planes, and muted color.

## Pixelcluster regels
Use broken block clusters.
```text
MMMMDD
MMDD..
MMD.H.
```

## Contrast
Medium-low except cracks and chips.

## Hue shifting
Warm dusty highlight, gray mid, cool blue-gray shadow.

## Highlights
Small rough planes on top-right facets.
```text
.HH..
MMMD.
DD...
```

## Shadow behavior
Cracks sit in cool shadows and must remain grouped.

## Outline
Dark cool gray or local stone shadow.

## Rim lighting
Sparse cool rim on silhouette.

## Ambient lighting
Moderate ambient because stone is matte.

## AA regels
Very sparse AA; keep chips crisp.

## Dithering regels
Clustered chips allowed, random gravel noise forbidden.

## Veel voorkomende fouten
Bad:
```text
X.X.X
.X.X.
X.X.X
```
Good:
```text
MMMDD
MDD..
DD.H.
```

## QA checklist
- 50% scale herkenbaar: Ja, by chipped block silhouette.
- Texture is clustered.
- Cracks are readable.
- No checker noise.
- Matte lighting holds.