# TerrainTileRef

> Talos next · Since 0.6

A sculpt or paint op's reference to one cell's delta tile, named by the SHA-256 of its bytes.

## Fields

| Field | Type | Required | Default | Allowed values | Description |
|---|---|---|---|---|---|
| `i` | `integer` | yes |  |  | Cell column. |
| `j` | `integer` | yes |  |  | Cell row. |
| `sha256` | `string` | yes |  |  | Lower-case hex SHA-256 of the tile file's bytes. |