Function configureTerrainGrid

configureTerrainGrid(
    material: ShaderMaterial,
    layout: HexLayout,
    opts?: TerrainGridOptions,
): void
Configure the hex grid overlay baked into the terrain shader: uploads the layout's axial↔world transform and applies any appearance options, enabling the grid unless enabled: false is passed. Toggling is a uniform flip — no geometry rebuild. Call again anytime to restyle.
Parameters
- material: ShaderMaterial
- layout: HexLayout
- opts: TerrainGridOptions = {}
Returns void
Example
```
configureTerrainGrid(world.terrainMaterial, world.layout);            // on
configureTerrainGrid(mat, layout, { color: 0xffffff, opacity: 0.2 }); // restyle
setTerrainGridEnabled(mat, false);                                    // off
```
- Defined in geometry/TerrainMaterial.ts:622