# Leather

## Visuele omschrijving
Flexible organic material with oily bends, creases, and warm dark ramps.

## Pixelcluster regels
Use curved crease clusters.
```text
DDMMM.
DMMHH.
DDM...
```

## Contrast
Medium-high on bends, medium on flat areas.

## Hue shifting
Warm tan highlight, brown mid, wine-purple or dark umber shadow.

## Highlights
Small crescent highlights on stretched areas.
```text
.HH.
MMH.
DD..
```

## Shadow behavior
Creases should be grouped and directional.

## Outline
Dark brown, wine, or navy depending on palette.

## Rim lighting
Subtle cool rim on outer straps or gloves.

## Ambient lighting
Moderate ambient to keep leather from reading as metal.

## AA regels
AA on curves and strap edges.

## Dithering regels
No random pores; use crease clusters.

## Veel voorkomende fouten
Bad:
```text
X.X.X
.X.X.
X.X.X
```
Good:
```text
DDMMM
DMMHH
DDM..
```

## QA checklist
- 50% scale herkenbaar: Ja, by curved creases and warm ramp.
- Not shiny like metal.
- Creases follow form.
- No random pores.
- Outline stays material-dark.