| xBase | First x index of Terrain holes samples to set. |
| yBase | First y index of Terrain holes samples to set. |
| holes | Array of Terrain holes samples to set (array indexed as [y,x]). |
Sets an array of Terrain holes samples.
Sets Terrain holes data using a two-dimensional array of Terrain holes samples. The samples are represented as bool values: true for surface and false for hole. The array dimensions define the area affected, which starts at xBase and yBase. The Terrain holes array is indexed as [y,x].
Unlike TerrainData.SetHoles, this method does not update LOD information for the Terrain, or any tree/vegetation objects; this means that some tree/vegetation objects might still be present over holes, but makes the method fast enough to be used in interactive editing scenarios. After modifications to the Terrain are complete - for example, when the user releases the mouse button - call TerrainData.SyncTexture and use TerrainData.HolesTextureName as a Texture name to update all LOD and vegetation information.