# Brushed Steel

## Visuele omschrijving
Matte steel with subtle directional grain and fewer sharp sparkles than standard steel.

## Pixelcluster regels
Use short parallel grain clusters that follow the form.
```text
MM-HH-
DD-MM-
DD--M-
```

## Contrast
Medium-high contrast with compressed highlights.

## Hue shifting
Blue-gray shadows, gray mids, warm pale highlights.

## Highlights
Use narrow repeated strokes, not isolated pixels.
```text
--HH--
MM--MM
--DD--
```

## Shadow behavior
Shadows stay broad; grain should not break silhouette.

## Outline
Dark cool-gray material outline.

## Rim lighting
Thin cool rim only where it separates form.

## Ambient lighting
Moderate ambient to keep brushed finish readable.

## AA regels
AA only along major silhouette curves.

## Dithering regels
Directional micro-lines allowed; checker dithering forbidden.

## Veel voorkomende fouten
Bad:
```text
X.X.X.
.X.X.X
X.X.X.
```
Good:
```text
MM--HH
DD--MM
DD---M
```

## QA checklist
- 50% scale herkenbaar: Ja, by directional grain bands.
- Grain follows form.
- No random checker texture.
- Highlights are restrained.
- Outline remains material-specific.