# materials toolset

> Talos next · Since next

4 tools, about 611 tokens when enabled.

Enabled with the `tools.enable` tool, or `argus-agent --toolsets materials`. Calling any of its tools also turns it on.

| Tool | Tokens | Description |
|---|---|---|
| `material.compare` | 191 | 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. |
| `material.measure` | 140 | Mean linear albedo, roughness, metallic, emission in nits, checked against a class (grass, rock, plaster, brick, clay-tile, timber, stone, cobble, iron...). |
| `material.preview` | 141 | Draw a material on a shape: contact sheet PNG (4 angles x 3 rigs). |
| `material.write` | 139 | Check a *.material.json, then save it. |