# material.compare

> Talos next · Since next

Draw a material headless on a 4 m panel under key, backlit or dusk light (or take an image) and compare with a reference picture: colour difference, brightness/contrast/highlight/detail ratios, hints.

No pass mark.

| | |
|---|---|
| Title | Compare a material with a reference picture |
| Mode | `disk` |
| Token cost | about 191 tokens (listed only when its toolset is enabled) |
| Toolset | `materials` |

## Arguments

| Argument | Type | Required | Default | Allowed values | Description |
|---|---|---|---|---|---|
| `image` | `string` | no |  |  | `false` leaves the picture out of the answer. |
| `light` | `enum` | no |  | `key`, `backlit`, `dusk` |  |
| `material` | `string` | no |  |  |  |
| `quality` | `enum` | no |  | `hd`, `standard` |  |
| `reference` | `string` | yes |  |  |  |
| `referenceRegion` | `number[]` | no |  |  |  |
| `region` | `number[]` | no |  |  | [x0,y0,x1,y1] 0..1 |

## Example

An MCP `tools/call` with the required arguments (placeholders in angle brackets).

```json
{
  "name": "material.compare",
  "arguments": {
    "reference": "<reference>"
  }
}
```