editor.landscape

Landscape creation and terrain editing

`editor.landscape.getInfo`

Returns information about a landscape actor including bounds, material, and edit layers.

Parameters:

Name	Type	Required	Description
`actor_name`	string	Yes	Landscape actor name or label

Returns:

Name	Type	Description
`actor_name`	string	Actor name
`actor_path`	string	Full object path
`component_count`	number	Number of landscape components
`bounds`	object	{min_x, min_y, min_z, max_x, max_y, max_z}
`material_path`	string	Assigned material path
`has_edit_layers`	bool	Whether edit layers are enabled
`num_layers`	number	Number of edit layers

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.getInfo", "params": { "actor_name": "Landscape" } }

`editor.landscape.getComponents`

Returns all landscape components with their section bases and bounds.

Parameters:

Name	Type	Required	Description
`actor_name`	string	Yes	Landscape actor name or label

Returns: components (array of {component_name, section_base_x, section_base_y, bounds}), count (number)

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.getComponents", "params": { "actor_name": "Landscape" } }

`editor.landscape.setMaterial`

Sets the landscape material and updates all component material instances.

Parameters:

Name	Type	Required	Description
`actor_name`	string	Yes	Landscape actor name or label
`material_path`	string	Yes	Material asset path

Returns: success (bool), material_path (string)

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.setMaterial", "params": { "actor_name": "Landscape", "material_path": "/Game/Materials/M_Terrain" } }

`editor.landscape.setMaterialParam`

Sets a material parameter (scalar, vector, or texture) on the landscape material.

Parameters:

Name	Type	Required	Description
`actor_name`	string	Yes	Landscape actor name or label
`param_name`	string	Yes	Parameter name
`param_type`	string	Yes	"scalar", "vector", or "texture"
`value`	varies	Yes	number (scalar), {r,g,b,a} (vector), or string path (texture)

Returns: success (bool), param_name, param_type

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.setMaterialParam", "params": { "actor_name": "Landscape", "param_name": "TerrainScale", "param_type": "scalar", "value": 2.0 } }

`editor.landscape.getLayers`

Returns all edit layers for a landscape.

Parameters:

Name	Type	Required	Description
`actor_name`	string	Yes	Landscape actor name or label

Returns: layers (array of {layer_name, layer_guid, is_visible, is_locked}), count (number)

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.getLayers", "params": { "actor_name": "Landscape" } }

`editor.landscape.createLayer`

Creates a new edit layer on the landscape.

Parameters:

Name	Type	Required	Description
`actor_name`	string	Yes	Landscape actor name or label
`layer_name`	string	Yes	Name for the new layer

Returns: success (bool), layer_index, layer_guid, layer_name

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.createLayer", "params": { "actor_name": "Landscape", "layer_name": "Roads" } }

`editor.landscape.setEditingLayer`

Sets the currently active editing layer by GUID.

Parameters:

Name	Type	Required	Description
`actor_name`	string	Yes	Landscape actor name or label
`layer_guid`	string	Yes	GUID of the layer to activate

Returns: success (bool), editing_layer_guid (string)

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.setEditingLayer", "params": { "actor_name": "Landscape", "layer_guid": "A1B2C3..." } }

`editor.landscape.importHeightmap`

Imports heightmap data from a render target.

Parameters:

Name	Type	Required	Description
`actor_name`	string	Yes	Landscape actor name or label
`render_target_path`	string	Yes	Render target asset path
`import_from_rg_channel`	bool	No	Import from RG channels (default false)
`edit_layer_index`	number	No	Target edit layer index (default 0)

Returns: success (bool)

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.importHeightmap", "params": { "actor_name": "Landscape", "render_target_path": "/Game/RenderTargets/RT_Height" } }

`editor.landscape.exportHeightmap`

Exports heightmap data to a render target.

Parameters:

Name	Type	Required	Description
`actor_name`	string	Yes	Landscape actor name or label
`render_target_path`	string	Yes	Render target asset path
`export_to_rg_channel`	bool	No	Export to RG channels (default false)
`export_proxies`	bool	No	Include streaming proxies (default true)

Returns: success (bool)

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.exportHeightmap", "params": { "actor_name": "Landscape", "render_target_path": "/Game/RenderTargets/RT_HeightExport" } }

`editor.landscape.importWeightmap`

Imports weightmap data from a render target for a specific paint layer.

Parameters:

Name	Type	Required	Description
`actor_name`	string	Yes	Landscape actor name or label
`render_target_path`	string	Yes	Render target asset path
`layer_name`	string	Yes	Paint layer name
`edit_layer_index`	number	No	Target edit layer index (default 0)

Returns: success (bool)

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.importWeightmap", "params": { "actor_name": "Landscape", "render_target_path": "/Game/RenderTargets/RT_Grass", "layer_name": "Grass" } }

`editor.landscape.build`

Rebuilds landscape features (grass, Nanite, physics, or all).

Parameters:

Name	Type	Required	Description
`build_type`	string	No	"all", "grass", "nanite", or "physics" (default "all")

Returns: success (bool), build_type (string)

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.build", "params": { "build_type": "grass" } }

`editor.landscape.getFoliageTypes`

Returns all foliage types defined in the instanced foliage actor.

No parameters.

Returns: foliage_types (array of {type_name, mesh_path, actor_class, instance_count, foliage_type_path}), count (number)

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.getFoliageTypes" }

`editor.landscape.getFoliageInstances`

Returns foliage instances within a bounding box, optionally filtered by type.

Parameters:

Name	Type	Required	Description
`box_min`	object	Yes	{x, y, z} minimum corner
`box_max`	object	Yes	{x, y, z} maximum corner
`type_name`	string	No	Filter by foliage type name
`mesh_path`	string	No	Filter by mesh path

Returns: instances (array of {type_name, location, rotation, scale}), count (number)

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.getFoliageInstances", "params": { "box_min": { "x": -1000, "y": -1000, "z": -500 }, "box_max": { "x": 1000, "y": 1000, "z": 500 } } }

`editor.landscape.removeFoliageInstances`

Removes foliage instances within a bounding box, optionally filtered by type.

Parameters:

Name	Type	Required	Description
`box_min`	object	Yes	{x, y, z} minimum corner
`box_max`	object	Yes	{x, y, z} maximum corner
`type_name`	string	No	Filter by foliage type name

Returns: success (bool), removed_count (number)

Example Request:

{ "jsonrpc": "2.0", "id": 1, "method": "editor.landscape.removeFoliageInstances", "params": { "box_min": { "x": -100, "y": -100, "z": -100 }, "box_max": { "x": 100, "y": 100, "z": 100 } } }