Node for 3D tile-based maps. GridMap lets you place meshes on a grid interactively. It works both from the editor and from scripts, which can help you create in-game level editors. GridMaps use a [MeshLibrary] which contains a list of tiles. Each tile is a mesh with materials plus optional collision and navigation shapes. A GridMap contains a collection of cells. Each grid cell refers to a tile in the [MeshLibrary]. All cells in the map have the same dimensions. Internally, a GridMap is split into a sparse collection of octants for efficient rendering and physics processing. Every octant has the same dimensions and can contain several cells. [b]Note:[/b] GridMap doesn't extend [VisualInstance3D] and therefore can't be hidden or cull masked based on [member VisualInstance3D.layers]. If you make a light not affect the first layer, the whole GridMap won't be lit by the light in question. $DOCS_URL/tutorials/3d/using_gridmaps.html https://godotengine.org/asset-library/asset/125 https://godotengine.org/asset-library/asset/126 Clear all cells. Returns an array of [ArrayMesh]es and [Transform3D] references of all bake meshes that exist within the current GridMap. Returns one of 24 possible rotations that lie along the vectors (x,y,z) with each component being either -1, 0, or 1. For further details, refer to the Godot source code. The [MeshLibrary] item index located at the given grid coordinates. If the cell is empty, [constant INVALID_CELL_ITEM] will be returned. Returns the basis that gives the specified cell its orientation. The orientation of the cell at the given grid coordinates. [code]-1[/code] is returned if the cell is empty. Returns whether or not the specified layer of the [member collision_layer] is enabled, given a [code]layer_number[/code] between 1 and 32. Returns whether or not the specified layer of the [member collision_mask] is enabled, given a [code]layer_number[/code] between 1 and 32. Returns an array of [Transform3D] and [Mesh] references corresponding to the non-empty cells in the grid. The transforms are specified in local space. Returns whether or not the specified layer of the [member navigation_layers] bitmask is enabled, given a [code]layer_number[/code] between 1 and 32. Returns the [RID] of the navigation map this GridMap node uses for its cell baked navigation meshes. This function returns always the map set on the GridMap node and not the map on the NavigationServer. If the map is changed directly with the NavigationServer API the GridMap node will not be aware of the map change. This function considers a discretization of rotations into 24 points on unit sphere, lying along the vectors (x,y,z) with each component being either -1, 0, or 1, and returns the index (in the range from 0 to 23) of the point best representing the orientation of the object. For further details, refer to the Godot source code. Returns an array of [Vector3] with the non-empty cell coordinates in the grid map. Returns an array of all cells with the given item index specified in [code]item[/code]. Returns the map coordinates of the cell containing the given [param local_position]. If [param local_position] is in global coordinates, consider using [method Node3D.to_local] before passing it to this method. See also [method map_to_local]. Returns the position of a grid cell in the GridMap's local coordinate space. To convert the returned value into global coordinates, use [method Node3D.to_global]. See also [method map_to_local]. Sets the mesh index for the cell referenced by its grid coordinates. A negative item index such as [constant INVALID_CELL_ITEM] will clear the cell. Optionally, the item's orientation can be passed. For valid orientation values, see [method get_orthogonal_index_from_basis]. Based on [code]value[/code], enables or disables the specified layer in the [member collision_layer], given a [code]layer_number[/code] between 1 and 32. Based on [code]value[/code], enables or disables the specified layer in the [member collision_mask], given a [code]layer_number[/code] between 1 and 32. Based on [code]value[/code], enables or disables the specified layer in the [member navigation_layers] bitmask, given a [code]layer_number[/code] between 1 and 32. Sets the [RID] of the navigation map this GridMap node should use for its cell baked navigation meshes. If [code]true[/code], this GridMap bakes a navigation region. If [code]true[/code], grid items are centered on the X axis. If [code]true[/code], grid items are centered on the Y axis. If [code]true[/code], grid items are centered on the Z axis. The size of each octant measured in number of cells. This applies to all three axis. The scale of the cell items. This does not affect the size of the grid cells themselves, only the items in them. This can be used to make cell items overlap their neighbors. The dimensions of the grid's cells. This does not affect the size of the meshes. See [member cell_scale]. The physics layers this GridMap is in. GridMaps act as static bodies, meaning they aren't affected by gravity or other forces. They only affect other physics bodies that collide with them. The physics layers this GridMap detects collisions in. See [url=$DOCS_URL/tutorials/physics/physics_introduction.html#collision-layers-and-masks]Collision layers and masks[/url] in the documentation for more information. The assigned [MeshLibrary]. A bitmask determining all navigation layers the GridMap generated navigation regions belong to. These navigation layers can be checked upon when requesting a path with [method NavigationServer3D.map_get_path]. Overrides the default friction and bounce physics properties for the whole [GridMap]. Emitted when [member cell_size] changes. Invalid cell item that can be used in [method set_cell_item] to clear cells (or represent an empty cell in [method get_cell_item]).