# `DecalSpec.material`

> Contract 2.0.0 · package sha256 `a857eca95b35921109faf997094bb4192f12527d9d0fcd4be7e97f06425bad6e` · generated from `configurator-runtime.d.ts` by `services/onsite-scripter/scripts/build-contract-docs.mjs`; edit the source, not this file.

Property of [`DecalSpec`](DecalSpec.md) · labs, `@experimental` · since 2.0.0

```ts
material?: MaterialSpec;
```

The decal's own material fields over its [`image`](DecalSpec.image.md) ([`roughness`](MaterialSpec.roughness.md), [`metallic`](MaterialSpec.metallic.md), [`alpha`](MaterialSpec.alpha.md) and the rest), as a part's material takes them.

**Default:** {}

## Generic-API test (spec 3.1)

| Rule | Result |
| --- | --- |
| 1. Neutral name | pass: `material` names no product |
| 2. A precedent | pass (through its owner [`DecalSpec`](DecalSpec.md)): [Babylon.js MeshBuilder.CreateDecal](https://github.com/BabylonJS/Babylon.js/blob/master/packages/dev/core/src/Meshes/Builders/decalBuilder.ts) (row `G24`); [Unity Projector](https://docs.unity3d.com/ScriptReference/Projector.html) (row `G24`) |
| 3. Two apps, or labs | labs (`@experimental` at a stable path, reached through `has()` or `supports()`): it graduates when a second app uses it; apps today: app-bcb7ef21da |
| 4. The cheaper fix first | decided per need in Appendix B: rows `G24`, `K52` (through its owner [`DecalSpec`](DecalSpec.md)) at tier labs (a member only where no rule, data, asset or app code serves the need) |