pcg kit

235 tools. Generated from the plugin source; do not edit by hand.

Guide

The pcg kit creates native PCG graph assets, builds them node by node or from ready-made recipes, configures node settings with typed tools, attaches graphs to actors through a UPCGComponent and drives generation. It needs Unreal Engine 5.2 or newer with the PCG plugin enabled. UE 4.27 has no PCG, so every pcg.* tool is hidden there. Some nodes only exist in newer engines; each tool carries its own minEngine (and maxEngine for removed nodes), so a tool that is listed in tools/list works on the running engine.

Fastest path: recipes

Every recipe creates a new graph asset (folder + name), wires it end to end and returns the asset, every node it added (name, class, title, pins) and every edge. Titles are stable references for later edits ({'node':'Sampler'}). A recipe never places anything in the level: attach the graph afterwards (see "Attach and generate").

recipe	graph	engine
pcg.create_scatter_on_surface_graph	Landscape -> Sampler (Surface Sampler) -> Transform (random yaw, uniform scale range) -> Spawner (weighted meshes) -> Output	5.2+
pcg.create_forest_graph	Landscape -> Sampler -> Difference (Source) minus Exclusions (Get Actor Data, actors tagged exclusionTag, on Differences) -> Pruning (Self Pruning) -> Transform -> Spawner -> Output	5.2+
pcg.create_spline_fence_graph	Splines (Get Spline Data, actors tagged splineTag) -> Sampler (Spline Sampler, Distance mode, one point every spacing cm) -> Spawner (mesh) -> Output	5.2+
pcg.create_prop_grid_graph	Grid (Create Points Grid, local to the component) -> Transform (XY jitter, random yaw) -> Spawner (weighted meshes) -> Output	5.4+
pcg.create_points_from_actors_graph	Actors (Get Actor Data, every world actor tagged actorTag, one point each) -> Transform (offset) -> Spawner (mesh) -> Output	5.2+
pcg.create_density_biome_graph	Landscape -> Sampler -> Noise (density noise 0..1) -> per mesh i: Band<i> (Density Filter [i/n, (i+1)/n]) -> Spawner<i> -> Output	5.2+

pcg.create_grid_scatter_graph (UE 5.4+, single mesh, nodes Grid/Transform/Spawner) is the minimal fixture-style recipe. The landscape recipes need a landscape inside the PCG component's bounds when generating; the tag-driven recipes read actors that carry the tag (actor.add_tag). Meshes are validated before the asset is created, so a bad mesh path never leaves a half graph.

Building a graph node by node

1. pcg.create makes an empty graph (direct UPCGGraph creation; the PCG editor factory is a private engine class and is not used).
2. Add nodes with typed adders pcg.add_*. Each adder creates exactly one public settings class, chosen by engine version at compile time; the reply's node.class is the class actually created. Pass title so later calls can use it as the node reference.
3. pcg.list_pins gives exact pin labels; connect them with pcg.connect. Common labels: In / Out, Surface Sampler input Surface, Spline Sampler input Spline, Difference inputs Source and Differences. The graph output node is $output (its input pin is Out), the input node $input.
4. Configure nodes with the typed setters below, or with pcg.set_node_setting for any other reflected property.

Node references everywhere accept the node object name (from pcg.list_nodes) or its authored title; a title shared by several nodes is an error, never a guess.

Typed adders

Sources and samplers: add_create_points (5.4+), add_create_points_grid (5.4+), add_get_actor_data, add_get_landscape, add_get_spline, add_get_volume, add_get_primitive, add_surface_sampler, add_spline_sampler, add_volume_sampler, add_texture_sampler, add_create_spline, add_world_query, add_world_ray_hit.

Point and density operations: add_transform_points, add_bounds_modifier, add_point_extents_modifier, add_bounds_from_mesh (5.5+), add_density_filter, add_density_noise (Attribute Noise from 5.3), add_density_remap, add_linear_density_remap (5.2-5.4 only), add_normal_to_density, add_distance, add_self_pruning, add_point_neighborhood (5.4+), add_spatial_noise (5.3+), add_sort_points (Sort Attributes, 5.4+), add_point_sampler (Select Points from 5.3), add_point_filter, add_point_match_and_set, add_copy_points, add_projection.

Spatial set operations: add_difference, add_union, add_intersection, add_merge, add_collapse.

Attributes and metadata: add_create_attribute, add_create_attribute_set, add_attribute_filter, add_attribute_select, add_attribute_reduce, add_attribute_transfer, add_attribute_get_from_point_index, add_property_to_param_data, add_metadata_* (maths, boolean, bitwise, compare, trig, vector, rotator, transform, make/break vector and transform, partition, rename), add_user_parameter_get.

Tags and control flow: add_add_tags (5.4+), add_delete_tags (5.4+), add_filter_by_tag, add_subgraph, add_loop (5.3+), add_branch (5.3+), add_switch (5.4+), add_reroute, add_debug.

Output: add_static_mesh_spawner, add_spawn_actor.

Where PCG renamed a node, the adder creates the current class: from 5.3 add_create_attribute -> PCGAddAttributeSettings, add_density_noise -> PCGAttributeNoiseSettings, add_intersection -> PCGInnerIntersectionSettings, add_point_sampler -> PCGSelectPointsSettings; from 5.4 add_attribute_filter -> PCGDeleteAttributesSettings, add_point_filter -> PCGAttributeFilteringSettings, add_property_to_param_data -> PCGGetActorPropertySettings. add_density_remap and add_attribute_transfer create classes PCG deprecated in 5.5 (still functional).

Typed setters

Each setter targets one node kind, checks the node's class (a wrong node answers E_INVALID_ARG naming the adder to use) and writes only the fields you pass: empty text, negative numbers, all-zero vectors and set* flags left false keep the current value; booleans are passed as "true" / "false" text so they can be omitted. Enum fields take the enumerator name; an unknown name answers E_INVALID_ARG listing the valid names for the running engine. The reply returns the node (with refreshed pins) and every written property as UE text in values. A call that writes nothing is an error.

tool	node	fields
pcg.set_surface_sampler	Surface Sampler	pointsPerSquaredMeter, pointExtents, looseness, pointSteepness, unbounded, applyDensityToPoints
pcg.set_transform_points	Transform Points	setOffset + offsetMin/Max, setRotation + rotationMin/Max (pitch, yaw, roll), setScale + scaleMin/Max, uniformScale, absoluteOffset/Rotation/Scale
pcg.set_mesh_spawner_meshes	Static Mesh Spawner	replaces the weighted entries: meshes, optional weights (one per mesh)
pcg.set_density_filter	Density Filter	lowerBound, upperBound, invertFilter
pcg.set_self_pruning	Self Pruning	pruningType, radiusSimilarityFactor, randomizedPruning
pcg.set_bounds_modifier	Bounds Modifier	mode, setBounds + boundsMin/Max, affectSteepness, steepness
pcg.set_distance	Distance	maximumDistance, setDensity, outputDistanceVector, sourceShape, targetShape
pcg.set_spline_sampler	Spline Sampler	mode (Subdivision/Distance/NumberOfSamples), dimension, fill, subdivisionsPerSegment, distanceIncrement, interiorSampleSpacing, projectOntoSurface
pcg.set_actor_selector	Get Actor Data and the Get Spline/Landscape/Volume/Primitive getters	actorFilter (Self, Parent, Root, AllWorldActors...), actorSelection (ByTag, ByClass), tag, actorClass, selectMultiple, includeChildren, mustOverlapSelf, mode (ParseActorComponents, GetSinglePoint...)
pcg.set_create_points_grid (5.4+)	Create Points Grid	gridExtents, cellSize, pointSteepness (5.5+), coordinateSpace, pointPosition, setPointsBounds, cullPointsOutsideVolume
pcg.set_create_points (5.4+)	Create Points	replaces the point list: points, extents, density, coordinateSpace
pcg.set_subgraph	Subgraph or Loop	subgraph (another graph; the owning graph is refused)
pcg.set_add_tags / pcg.set_delete_tags (5.4+)	Add Tags / Delete Tags	tags (list), operation for delete
pcg.set_density_noise	node from add_density_noise	mode, setRange + noiseMin/Max, invertSource
pcg.set_normal_to_density	Normal To Density	normal, setOffset + offset, strength, densityMode
pcg.set_difference	Difference	densityFunction, mode, diffMetadata

Two generic helpers complete them:

• pcg.set_attribute_selector {graph, node, property, selector} writes any attribute/property selector setting (InputSource, OutputTarget, Parameters.ComparisonSource...). The selector text is an attribute name, a point property such as $Density or $Position.Z, or @Last. Non-selector properties are refused.
• pcg.reset_node_setting {graph, node, property} restores one editable setting (dotted paths such as SamplerParams.Mode are allowed) to the settings-class default and returns the value.

Finding and batch operations

• pcg.find_graphs_using_mesh {mesh, folder} scans the PCG graphs under folder (default /Game) and lists the nodes whose settings reference the asset, including spawner selector entries. It loads the graphs, so it also sees unsaved graphs.
• pcg.find_graphs_using_subgraph {subgraph, folder} lists Subgraph/Loop nodes running a graph.
• pcg.find_graphs_using_node_class {class, folder} lists nodes of a settings class or subclass (/Script/PCG.PCGSurfaceSamplerSettings, as shown in node.class).
• pcg.find_components_using_graph {graph} lists the editor-world components using a graph.
• pcg.batch_regenerate {graphs, force, dryRun} calls GenerateLocal on every editor-world PCG component whose graph is listed (empty list: every component with a graph). items holds one entry per component (scheduled, wouldRegenerate with dryRun, or failed with the reason, e.g. already generating) and one failed entry per listed graph that was not found or that no component uses. It only schedules work: poll pcg.wait_generation per actor afterwards.
• Graph review: pcg.get_graph_*, pcg.list_* and pcg.audit_* inspect nodes, pins, edges and settings (source, sink, orphan, connected, unconnected, metadata, spawner, sampler, filter, actor-data, debug, parameter, spatial, point, placed and unplaced nodes).

Graph editing, parameters and instances

Graph editing (UE 5.2+ unless noted)

• Node references: object name from pcg.list_nodes, a unique title, or $input/$output.
• Every node reply carries pin schema (allowedTypes, allowMultipleConnections/Data, required/advanced on 5.4+, edgeCount). Edge identity is "From:FromPin->To:ToPin" (node object names).
• pcg.connect / pcg.connect_many reply edges (created), replaced (edges PCG dropped because the destination pin takes one connection) and pins. connect_many validates every edge first.
• pcg.disconnect_node {node, pin?, direction: inputs|outputs|both}; pcg.remove_nodes {nodes:[...]}.
• pcg.duplicate_node copies settings, not edges. pcg.arrange_nodes lays nodes out by dependency depth.
• Settings: pcg.get_node_settings {onlyNonDefault} lists paths/types/values; pcg.set_node_settings {settings:[{key,value}]} applies to a scratch copy first (all-or-nothing). Paths enter structs and instanced sub-objects: MeshSelectorParameters.MeshEntries. Values are UE text (FText as plain text).
• pcg.set_node_enabled (refused for nodes that cannot be disabled), pcg.set_node_debug (transient), pcg.set_node_comment. Comment boxes (UE 5.6+): list/add (optionally around nodes)/update/remove; id = GUID or the exact comment text when unique.
• pcg.get_node_class_info {class} shows default pins and settings before adding a node.
• pcg.validate reports NULL_SETTINGS, INVALID_EDGE, REQUIRED_PIN_UNCONNECTED (5.4+), UNKNOWN_PARAMETER, ORPHAN_NODE, DISABLED_NODE, OUTPUT_UNCONNECTED (5.3+).
• pcg.get/set_graph_settings keys: landscapeUsesMetadata, exposeToLibrary, category, description (5.2), hierarchicalGeneration, hiGenGridSize (5.3), use2DGrid, ignoreLandscapeTracking (5.5), hasDefaultConstructedInputs (5.7), hiGenGridSizeMultiplier, graphUsage (5.8).
• pcg.export_graph (5.3) returns a typed document (graphSettings, parameters, nodes with non-default settings, edges; optional file = absolute .json). pcg.import_graph (5.5) recreates it as a new asset from document or file; everything is validated before the asset exists.
• pcg.list_available_subgraphs (5.4) lists graphs/instances usable as subgraphs, excluding cycles.

Parameters and instances

• add_parameter (5.3): types bool, byte, int32, int64, float, double, name, string, text, vector, vector2d, rotator, transform, color, enum/struct (typeObject path), object/softobject/class/softclass (typeObject = base class); container none|array (5.3) | set (5.5); value needs 5.5.
• set_parameter / remove_parameter (5.5; remove refuses while Get Graph Parameter nodes read it unless force), rename_parameter (5.6). list/get_parameter accept a graph or an instance.
• Instances: pcg.create_instance {graph, folder, name} (5.2), pcg.set_instance_graph (5.4, no cycles), pcg.list_instance_overrides (overridden, value, parentValue), set/clear_instance_override (5.4).
• Per component: pcg.list_component_parameters, set/clear_component_parameter_override (5.4).

Attach and generate

pcg.add_volume {graph, name} spawns a PCG volume with a component; pcg.add_component {actor, graph, seed} attaches a component to an existing actor; pcg.generate schedules generation; poll pcg.wait_generation {actor, maxFrames} in separate requests until it reports idle (a frame limit is an error, never success); pcg.get_component shows the graph, seed, state and output data count; pcg.cleanup removes generated resources (asynchronous too).

Runtime (asynchronous generation)

• pcg.generate, pcg.generate_all {graph?}, pcg.refresh (5.4) only schedule work and return at once.
• Direct-call scenario: pcg.generate, then pcg.wait_generation {maxFrames} as a separate request (it lets editor frames pass and fails on timeout; never inside edit.call_many/self-test), then read.
• pcg.count_generated_instances / pcg.get_generated_resources (5.6) read the last finished generation (bGenerating=true means counts are stale). Partitioned components keep resources on local components.
• pcg.inspect_node_output (5.8): node '$output' reads the graph output directly. For any other node: pcg.set_component_inspection {enabled:true}, pcg.generate {force:true}, pcg.wait_generation, then inspect (per pin: data class, point count, bounds, attributes, tags; executed=false = not run yet).
• Empty component is accepted only when the actor has exactly one PCG component.

Engine differences

• UE 4.27: no PCG; all tools hidden.
• 5.2: first supported version. add_density_noise creates PCGDensityNoiseSettings; Loop, Branch, Spatial Noise, Create Points (Grid), tags and Switch nodes do not exist yet.
• 5.3: Loop, Branch, Spatial Noise; several renamed classes (see above).
• 5.4: Create Points, Create Points Grid, Add/Delete Tags, Switch, Sort Attributes, Point Neighborhood; Self Pruning settings move into a Parameters struct (handled internally).
• 5.5: Bounds From Mesh, pointSteepness on Create Points Grid; Linear Density Remap removed.

Generation is asynchronous everywhere: pcg.generate, pcg.cleanup, pcg.batch_regenerate only schedule work, and waiting must happen in separate requests so editor frames can pass.

Tools

Legend. risk 0 = read-only, 1 = harmless editor op, 2 = modifies asset, 3 = deletes/replaces asset, 4 = project/config/build op, 5 = potentially destructive (calls above MaxAutoRisk need "_confirm": true). mutates = runs in a transaction (edit.undo reverts). requires PIE / requires world = refused without a PIE session / an open level. requires plugin = unavailable while the plugin is disabled. dryRun = honours the dryRun argument. smoke = covered by edit.self_test.

pcg.add_add_tags (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Adds an Add Tags node (PCGAddTagSettings, UE 5.4+); list the tags with pcg.set_add_tags.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_attribute_filter (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the attribute filter settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_attribute_get_from_point_index (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the attribute get from point index settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_attribute_reduce (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the attribute reduce settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_attribute_select (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the attribute select settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_attribute_transfer (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the attribute transfer settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_bounds_from_mesh (risk 2, mutates, UE 5.5+, requires plugin PCG, smoke)

Adds a Bounds From Mesh node (PCGBoundsFromMeshSettings, UE 5.5+): sets point bounds from a mesh.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_bounds_modifier (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the bounds modifier settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_branch (risk 2, mutates, UE 5.3+, requires plugin PCG, smoke)

Adds a Branch node (PCGBranchSettings, UE 5.3+): routes the input to output A or B by a bool (overridable).

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_collapse (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the collapse settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_comment_box (risk 2, mutates, UE 5.6+, requires plugin PCG, smoke)

Adds a comment box, optionally sized around given nodes; replies its GUID. UE 5.6+.

Argument	Type	Description
graph	string	required. PCG graph asset path.
comment	string	required. Comment text.
nodes	array of string	Optional nodes to enclose; when set, the box geometry is computed around them (padding 60) and x/y/width/height are ignored.
x	integer	Default 0.
y	integer	Default 0.
width	integer	Box width. Default 400.
height	integer	Box height. Default 100.
fontSize	integer	Font size. Default 18.
color	{x,y,z}	RGB color 0..1. Default FUeaVec3(1,1,1).

Returns: box, boxes, count.

pcg.add_component (risk 2, mutates, UE 5.2+, requires plugin PCG, requires world, smoke)

No description.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
graph	string	required. PCG graph asset path.
name	string	Optional component name.
seed	integer	Deterministic PCG seed. Default 42.

Returns: component, message.

pcg.add_copy_points (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the copy points settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_create_attribute (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the create attribute settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_create_attribute_set (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the create attribute set settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_create_points (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Adds a Create Points node (PCGCreatePointsSettings, UE 5.4+); fill it with pcg.set_create_points.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_create_points_grid (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Adds a Create Points Grid node (PCGCreatePointsGridSettings, UE 5.4+); configure it with pcg.set_create_points_grid.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_create_spline (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the create spline settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_debug (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the debug settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_delete_tags (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Adds a Delete Tags node (PCGDeleteTagsSettings, UE 5.4+); list the tags with pcg.set_delete_tags.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_density_filter (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the density filter settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_density_noise (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the density noise settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_density_remap (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the density remap settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_difference (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the difference settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_distance (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds a Distance node (PCGDistanceSettings, UE 5.2+): distance from each source point to the nearest target point.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_filter_by_tag (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the filter by tag settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_get_actor_data (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the get actor data settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_get_landscape (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the get landscape settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_get_primitive (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the get primitive settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_get_spline (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the get spline settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_get_volume (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the get volume settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_intersection (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the intersection settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_linear_density_remap (risk 2, mutates, UE 5.2+, UE ≤5.4, requires plugin PCG, smoke)

Adds the linear density remap settings node (removed from PCG in UE 5.5; use add_density_remap there).

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_loop (risk 2, mutates, UE 5.3+, requires plugin PCG, smoke)

Adds a Loop node (PCGLoopSettings, UE 5.3+) that runs a subgraph once per input data; choose the graph with pcg.set_subgraph.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_merge (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the merge settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_bitwise (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata bitwise settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_boolean (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata boolean settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_break_transform (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata break transform settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_break_vector (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata break vector settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_compare (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata compare settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_make_transform (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata make transform settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_make_vector (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata make vector settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_maths (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata maths settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_partition (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata partition settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_rename (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata rename settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_rotator (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata rotator settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_transform (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata transform settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_trig (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata trig settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_metadata_vector (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the metadata vector settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_node (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
graph	string	required. PCG graph asset path.
class	string	required. Public UPCGSettings class path, for example /Script/PCG.PCGTransformPointsSettings.
x	integer	Graph X. Default 0.
y	integer	Graph Y. Default 0.
title	string	Optional authored node title.

Returns: node, message.

pcg.add_normal_to_density (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds a Normal To Density node (PCGNormalToDensitySettings, UE 5.2+): density from the point normal vs a reference normal.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_parameter (risk 2, mutates, UE 5.3+, requires plugin PCG, smoke)

Adds a typed graph user parameter (scalar, string, vector/rotator/transform/color, enum, struct, object/class refs; optional array/set container) with an optional default value. UE 5.3+ (default value: 5.5+, set container: 5.5+).

Argument	Type	Description
graph	string	required. PCG graph asset path.
name	string	required. New parameter name (valid identifier).
type	string	bool, byte, int32, int64, float, double, name, string, text, vector, vector2d, rotator, transform, color, enum, struct, object, softobject, class or softclass. Default TEXT("double").
typeObject	string	Enum path (enum), struct path (struct) or base class path (object, softobject, class, softclass; default /Script/CoreUObject.Object).
container	string	none, array (UE 5.3+) or set (UE 5.5+). Default TEXT("none").
value	string	Optional default value in UE text form (UE 5.5+).

Returns: parameters, count, readers, message.

pcg.add_point_extents_modifier (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the point extents modifier settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_point_filter (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the point filter settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_point_match_and_set (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the point match and set settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_point_neighborhood (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Adds a Point Neighborhood node (PCGPointNeighborhoodSettings, UE 5.4+): averages neighbours within a radius.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_point_sampler (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the point sampler settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_projection (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the projection settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_property_to_param_data (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the property to param data settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_reroute (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the reroute settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_self_pruning (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the self pruning settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_sort_points (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Adds a Sort Attributes node (PCGSortAttributesSettings, UE 5.4+) that sorts points by an attribute; pick it with pcg.set_attribute_selector.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_spatial_noise (risk 2, mutates, UE 5.3+, requires plugin PCG, smoke)

Adds a Spatial Noise node (PCGSpatialNoiseSettings, UE 5.3+): perlin/voronoi style noise written to density or an attribute.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_spawn_actor (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the spawn actor settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_spline_sampler (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the spline sampler settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_static_mesh_spawner (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the static mesh spawner settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_subgraph (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds a Subgraph node (PCGSubgraphSettings, UE 5.2+); choose the graph with pcg.set_subgraph.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_surface_sampler (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the surface sampler settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_switch (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Adds a Switch node (PCGSwitchSettings, UE 5.4+): routes the input to one of several outputs.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_texture_sampler (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the texture sampler settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_transform_points (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the transform points settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_union (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the union settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_user_parameter_get (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the user parameter get settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_volume (risk 2, mutates, UE 5.2+, requires plugin PCG, requires world, smoke)

No description.

Argument	Type	Description
graph	string	required. Graph asset path.
name	string	required. Actor label.
location	{x,y,z}	World location.
extent	{x,y,z}	Box extent in cm. Default FUeaVec3(500,500,500).
seed	integer	PCG seed. Default 42.

Returns: component, message.

pcg.add_volume_sampler (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the volume sampler settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_world_query (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the world query settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.add_world_ray_hit (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Adds the world ray hit settings node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
x	integer	Graph X coordinate. Default 0.
y	integer	Graph Y coordinate. Default 0.
title	string	Optional authored node title (later tools accept it as the node reference).

Returns: node, message.

pcg.arrange_nodes (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Lays nodes out left to right by dependency depth from the graph input (the output node goes last); replies the new positions.

Argument	Type	Description
graph	string	required. PCG graph asset path.
spacingX	integer	Horizontal distance between dependency layers. Default 400.
spacingY	integer	Vertical distance between nodes of one layer. Default 200.
originX	integer	X of the first layer (graph input node). Default 0.
originY	integer	Y of the first row. Default 0.

Returns: nodes, count.

pcg.audit_duplicate_titles (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects audit duplicate titles for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.audit_empty_graph (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects audit empty graph for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.audit_graph (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects audit graph for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.audit_graph_edges (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects audit graph edges for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.audit_graph_input_output (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects audit graph input output for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.audit_graph_readiness (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects audit graph readiness for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.audit_missing_settings (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects audit missing settings for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.audit_node_positions (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects audit node positions for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.audit_node_titles (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects audit node titles for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.audit_orphan_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects audit orphan nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.audit_unconnected_pins (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects audit unconnected pins for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.batch_regenerate (risk 2, mutates, UE 5.2+, requires plugin PCG, requires world, dryRun, smoke)

Regenerates (GenerateLocal) every editor-world PCG component using the listed graphs, or all components; reports per-component and per-graph failures. Asynchronous: poll pcg.wait_generation per actor.

Argument	Type	Description
graphs	array of string	Graph asset paths; empty regenerates every PCG component that has a graph.
force	boolean	Force regeneration even when inputs did not change. Default true.
dryRun	boolean	Only report what would be regenerated. Default false.

Returns: items, scheduled, failed, message.

pcg.cancel_generation (risk 2, mutates, UE 5.2+, requires plugin PCG, requires world, smoke)

No description.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
component	string	PCG component name; may be empty only when the actor has exactly one PCG component.

Returns: message, count, generating, cleaningUp.

pcg.cleanup (risk 2, mutates, UE 5.2+, requires plugin PCG, requires world, smoke)

No description.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
component	string	PCG component name; may be empty only when the actor has exactly one PCG component.

Returns: message, count, generating, cleaningUp.

pcg.clear_component_parameter_override (risk 2, mutates, UE 5.4+, requires plugin PCG, requires world, smoke)

Clears a component parameter override (the component follows the graph value again). UE 5.4+.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
component	string	PCG component name; may be empty only when the actor has exactly one PCG component.
name	string	required. Graph parameter name.
value	string	Override value in UE text form (ignored by clear).

Returns: component, parameters, count, message.

pcg.clear_instance_override (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Clears an instance override: the parameter follows the parent value again. UE 5.4+.

Argument	Type	Description
instance	string	required. PCG graph instance asset path.
name	string	required. Parameter name.

Returns: parameters, count, readers, message.

pcg.connect (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Connects an output pin to an input pin; replies the edge identity, the edges PCG replaced on single-connection pins and both pin schemas.

Argument	Type	Description
graph	string	required. PCG graph asset path.
from	string	required. Source node name, or $input.
fromPin	string	required. Source output pin label.
to	string	required. Destination node name, or $output.
toPin	string	required. Destination input pin label.

Returns: edges, replaced, pins, count, message.

pcg.connect_many (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Creates several edges; every node and pin is validated before the first edge is added.

Argument	Type	Description
graph	string	required. PCG graph asset path.
edges	array of UeaPcgEdgeSpec	required. Edges to create; every node and pin is validated before any edge is added.

Returns: edges, replaced, pins, count, message.

pcg.count_generated_instances (risk 0, UE 5.6+, requires plugin PCG, requires world, smoke)

Counts generated static mesh instances per mesh (and spawned actors) for the component's last finished generation. UE 5.6+.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
component	string	PCG component name; may be empty only when the actor has exactly one PCG component.

Returns: total, meshes, actors, generating, message.

pcg.create (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
folder	string	required. Content folder.
name	string	required. Bare asset name.

Returns: asset, nodeCount, message.

pcg.create_density_biome_graph (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Recipe: landscape Surface Sampler -> density noise -> one Density Filter band + Static Mesh Spawner per mesh -> Output.

Argument	Type	Description
folder	string	required. Content folder of the new graph.
name	string	required. Bare asset name.
meshes	array of string	required. One mesh per biome band (1..8); band i keeps densities [i/n, (i+1)/n].
pointsPerSquaredMeter	number	Sampling density (> 0). Default 0.05.
pointExtents	{x,y,z}	Half size of each sampled point in cm (> 0). Default FUeaVec3(50,50,50).

Returns: asset, nodes, edges, nodeCount, message.

pcg.create_forest_graph (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Recipe: landscape Surface Sampler minus tagged exclusion actors (Difference) -> Self Pruning -> Transform Points -> Static Mesh Spawner -> Output.

Argument	Type	Description
folder	string	required. Content folder of the new graph.
name	string	required. Bare asset name.
meshes	array of string	required. Tree meshes picked at random (weighted).
weights	array of integer	One weight (> 0) per mesh; empty gives weight 1.
exclusionTag	string	Actor tag of the exclusion volumes/meshes (their bounds are cut out of the forest). Default TEXT("PCG_Exclude").
pointsPerSquaredMeter	number	Sampling density (> 0). Default 0.02.
pointExtents	{x,y,z}	Half size of each tree footprint in cm (> 0); self pruning removes overlapping footprints. Default FUeaVec3(150,150,100).
scaleMin	number	Minimum uniform scale (> 0). Default 0.8.
scaleMax	number	Maximum uniform scale (>= scaleMin). Default 1.3.

Returns: asset, nodes, edges, nodeCount, message.

pcg.create_grid_scatter_graph (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Recipe: creates a graph wired Create Points Grid -> Transform Points -> Static Mesh Spawner -> Output (nodes titled Grid, Transform, Spawner). UE 5.4+ (Create Points Grid node).

Argument	Type	Description
folder	string	required. Content folder.
name	string	required. Bare asset name.
mesh	string	Static mesh spawned on every point. Default TEXT("/Engine/BasicShapes/Cube").
gridExtent	{x,y,z}	Half size of the point grid in cm. Default FUeaVec3(200,200,0).
cellSize	{x,y,z}	Grid cell size in cm (all components > 0). Default FUeaVec3(100,100,100).

Returns: asset, nodeCount, message.

pcg.create_instance (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Creates a PCG graph instance asset (UPCGGraphInstance) pointing to a graph or another instance; its parameters start equal to the parent and can be overridden with pcg.set_instance_override.

Argument	Type	Description
graph	string	required. Parent PCG graph or graph instance asset the new instance points to.
folder	string	required. Content folder of the new instance asset.
name	string	required. Bare asset name of the new instance (convention: PCGI_ prefix).

Returns: asset, parent, rootGraph, parameterCount, overriddenCount.

pcg.create_points_from_actors_graph (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Recipe: Get Actor Data (every world actor tagged actorTag, one point each) -> Transform Points (offset) -> Static Mesh Spawner -> Output.

Argument	Type	Description
folder	string	required. Content folder of the new graph.
name	string	required. Bare asset name.
actorTag	string	required. Actor tag to read.
mesh	string	Mesh spawned at each actor. Default TEXT("/Engine/BasicShapes/Cube").
offset	{x,y,z}	Offset from each actor in cm.
includeChildren	boolean	Also read the tagged actors' children. Default false.

Returns: asset, nodes, edges, nodeCount, message.

pcg.create_prop_grid_graph (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Recipe (UE 5.4+): Create Points Grid (local to the component) -> Transform Points (XY jitter, random yaw) -> Static Mesh Spawner (weighted meshes) -> Output.

Argument	Type	Description
folder	string	required. Content folder of the new graph.
name	string	required. Bare asset name.
meshes	array of string	required. Prop meshes picked at random (weighted).
weights	array of integer	One weight (> 0) per mesh; empty gives weight 1.
gridExtent	{x,y,z}	Half size of the grid in cm, around the PCG component (>= 0). Default FUeaVec3(1000,1000,0).
cellSize	{x,y,z}	Cell size in cm (all > 0). Default FUeaVec3(200,200,100).
jitter	number	Random XY offset in cm (>= 0). Default 50.
randomYaw	boolean	Random yaw 0..360. Default true.

Returns: asset, nodes, edges, nodeCount, message.

pcg.create_scatter_on_surface_graph (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Recipe: Get Landscape Data -> Surface Sampler -> Transform Points (random yaw/scale) -> Static Mesh Spawner (weighted meshes) -> Output.

Argument	Type	Description
folder	string	required. Content folder of the new graph.
name	string	required. Bare asset name.
meshes	array of string	required. Static meshes picked at random (weighted).
weights	array of integer	One weight (> 0) per mesh; empty gives weight 1.
pointsPerSquaredMeter	number	Sampling density (> 0). Default 0.05.
pointExtents	{x,y,z}	Half size of each sampled point in cm (> 0). Default FUeaVec3(50,50,50).
scaleMin	number	Minimum uniform scale (> 0). Default 0.8.
scaleMax	number	Maximum uniform scale (>= scaleMin). Default 1.2.
randomYaw	boolean	Random yaw 0..360. Default true.

Returns: asset, nodes, edges, nodeCount, message.

pcg.create_spline_fence_graph (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Recipe: Get Spline Data (actors tagged splineTag) -> Spline Sampler (one point every spacing cm) -> Static Mesh Spawner -> Output.

Argument	Type	Description
folder	string	required. Content folder of the new graph.
name	string	required. Bare asset name.
mesh	string	Post mesh. Default TEXT("/Engine/BasicShapes/Cube").
splineTag	string	Actor tag of the spline actors to follow. Default TEXT("PCG_Fence").
spacing	number	Distance between posts in cm (> 0). Default 200.

Returns: asset, nodes, edges, nodeCount, message.

pcg.delete (risk 3, mutates, destructive, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: message, count, generating, cleaningUp.

pcg.disconnect (risk 3, mutates, UE 5.2+, requires plugin PCG, smoke)

Removes one edge; replies the removed edge identity and both pin schemas.

Argument	Type	Description
graph	string	required. PCG graph asset path.
from	string	required. Source node name, or $input.
fromPin	string	required. Source output pin label.
to	string	required. Destination node name, or $output.
toPin	string	required. Destination input pin label.

Returns: edges, replaced, pins, count, message.

pcg.disconnect_node (risk 3, mutates, UE 5.2+, requires plugin PCG, smoke)

Removes every edge of a node (or of one pin), inputs, outputs or both; replies the removed edge identities.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node name or title.
pin	string	Optional pin label; empty = every pin in the chosen direction.
direction	string	inputs, outputs or both. Default TEXT("both").

Returns: edges, replaced, pins, count, message.

pcg.duplicate (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
graph	string	required. Source graph.
folder	string	required. Destination folder.
name	string	required. Bare destination name.

Returns: asset, nodeCount, message.

pcg.duplicate_node (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Duplicates a node (settings copied, edges not) at an offset; replies the new node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node to duplicate (settings are copied, edges are not).
offsetX	integer	X offset of the copy. Default 50.
offsetY	integer	Y offset of the copy. Default 50.
title	string	Optional authored title for the copy.

Returns: node, message.

pcg.export_graph (risk 0, UE 5.3+, requires plugin PCG, smoke)

Exports a graph as a typed document (graph settings, parameters, nodes with non-default settings, edges) that pcg.import_graph recreates; optional file writes it as JSON. UE 5.3+.

Argument	Type	Description
graph	string	required. PCG graph asset path.
file	string	Optional absolute .json file path; when set the document is also written there.

Returns: document, file, nodeCount, edgeCount.

pcg.find_components_using_graph (risk 0, UE 5.2+, requires plugin PCG, requires world, smoke)

Lists the editor-world PCG components whose graph is the given asset.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: components, count.

pcg.find_graphs_using_mesh (risk 0, UE 5.2+, requires plugin PCG, smoke)

Lists the PCG graphs under a folder whose node settings reference a mesh (weighted selector entries, overrides...).

Argument	Type	Description
mesh	string	required. Static mesh (or any asset) path referenced by node settings.
folder	string	Content folder searched recursively. Default TEXT("/Game").

Returns: graphs, count, scanned.

pcg.find_graphs_using_node_class (risk 0, UE 5.2+, requires plugin PCG, smoke)

Lists the PCG graphs under a folder containing nodes of a settings class (or subclass).

Argument	Type	Description
class	string	required. UPCGSettings class path or name, e.g. /Script/PCG.PCGSurfaceSamplerSettings (subclasses match).
folder	string	Content folder searched recursively. Default TEXT("/Game").

Returns: graphs, count, scanned.

pcg.find_graphs_using_subgraph (risk 0, UE 5.2+, requires plugin PCG, smoke)

Lists the PCG graphs under a folder with a Subgraph or Loop node running the given graph.

Argument	Type	Description
subgraph	string	required. PCG graph used as subgraph/loop body.
folder	string	Content folder searched recursively. Default TEXT("/Game").

Returns: graphs, count, scanned.

pcg.find_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Finds nodes by class/title/comment substring, enabled state or connection state.

Argument	Type	Description
graph	string	required. PCG graph asset path.
class	string	Case-insensitive substring of the settings class name (e.g. Spawner).
title	string	Case-insensitive substring of the authored or default title.
comment	string	Case-insensitive substring of the node comment.
enabled	string	Filter by enabled flag: empty (any), true or false.
unconnectedOnly	boolean	Only nodes without any connected pin. Default false.
includeInputOutput	boolean	Include the graph input/output nodes. Default false.

Returns: nodes, count.

pcg.generate (risk 2, mutates, UE 5.2+, requires plugin PCG, requires world, smoke)

Schedules generation (asynchronous: returns immediately; call pcg.wait_generation before reading results).

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
component	string	PCG component name; may be empty only when the actor has exactly one PCG component.
force	boolean	Force regeneration. Default true.

Returns: message, count, generating, cleaningUp.

pcg.generate_all (risk 2, mutates, UE 5.2+, requires plugin PCG, requires world, smoke)

Schedules generation on every PCG component of the editor world (optionally only those using one graph); skipped components are reported with the reason. Asynchronous.

Argument	Type	Description
graph	string	Optional PCG graph asset path; when set only components using it are generated.
force	boolean	Force regeneration. Default true.

Returns: scheduled, skipped, count, message.

pcg.get (risk 0, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: asset, nodeCount, message.

pcg.get_component (risk 0, UE 5.2+, requires plugin PCG, requires world, smoke)

No description.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
component	string	PCG component name; may be empty only when the actor has exactly one PCG component.

Returns: component, message.

pcg.get_connected_pin_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get connected pin count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_edge_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get edge count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_generated_resources (risk 0, UE 5.6+, requires plugin PCG, requires world, smoke)

Lists the component's managed resources (instanced mesh components with mesh and instance count, spawned actors). Reflects the last finished generation. UE 5.6+.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
component	string	PCG component name; may be empty only when the actor has exactly one PCG component.

Returns: component, resources, count, message.

pcg.get_graph_complexity (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph complexity for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_connected_node_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph connected node count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_connection_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph connection count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_density (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph density for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_endpoint_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph endpoint count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_input (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph input for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_metadata_node_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph metadata node count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_node_bounds (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph node bounds for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_node_class_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph node class count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_output (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph output for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_pin_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph pin count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_settings (risk 0, UE 5.2+, requires plugin PCG, smoke)

Lists the graph-level settings available on this engine (hierarchical generation, HiGen grid, 2D grid, landscape metadata, library exposure, category, description...) with their values.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: graph, settings, unavailable.

pcg.get_graph_settings_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph settings count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_spawner_node_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph spawner node count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_topology (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph topology for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_graph_unconnected_node_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get graph unconnected node count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_input_pin_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get input pin count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_instance (risk 0, UE 5.3+, requires plugin PCG, smoke)

Describes a graph instance: parent, root graph, parameter and override counts. UE 5.3+.

Argument	Type	Description
instance	string	required. PCG graph instance asset path.

Returns: asset, parent, rootGraph, parameterCount, overriddenCount.

pcg.get_node (risk 0, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node object name returned by list_nodes, or its authored title when unique.

Returns: node, message.

pcg.get_node_class_info (risk 0, UE 5.2+, requires plugin PCG, smoke)

Describes a node settings class without adding it: default title, tooltip, type, default pins with schema, editable settings with defaults.

Argument	Type	Description
class	string	required. UPCGSettings class path or unique class name (e.g. /Script/PCG.PCGTransformPointsSettings).

Returns: class, defaultTitle, tooltip, type, hasDynamicPins, canBeDisabled, inputs, outputs, properties.

pcg.get_node_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get node count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_node_setting (risk 0, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node name.
property	string	required. Reflected setting property path; dots enter structs and instanced sub-objects (MeshSelectorParameters.MeshEntries).
value	string	UE text-import value (ignored by get_node_setting).

Returns: node, message.

pcg.get_node_settings (risk 0, UE 5.2+, requires plugin PCG, smoke)

Lists the node's editable settings (type, category, value, pin-overridable), optionally only the non-default ones.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node name or title.
onlyNonDefault	boolean	Only list values that differ from the class defaults. Default false.

Returns: node, properties, count.

pcg.get_orphan_node_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get orphan node count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_output_pin_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get output pin count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_parameter (risk 0, UE 5.3+, requires plugin PCG, smoke)

Reads one parameter of a graph or graph instance and lists the Get Graph Parameter nodes reading it. UE 5.3+.

Argument	Type	Description
graph	string	required. PCG graph (or graph instance) asset path.
name	string	required. Parameter name.

Returns: parameters, count, readers, message.

pcg.get_sink_node_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get sink node count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_source_node_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get source node count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.get_unconnected_pin_count (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects get unconnected pin count for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.import_graph (risk 2, mutates, UE 5.5+, requires plugin PCG, smoke)

Creates a new graph from a document (inline or a JSON file written by pcg.export_graph): parameters, nodes, settings, edges; everything is validated before the asset is created. UE 5.5+.

Argument	Type	Description
folder	string	required. Content folder of the new graph.
name	string	required. Bare asset name of the new graph.
document	UeaPcgGraphDocument	Inline document (as returned by pcg.export_graph); leave empty when file is set.
file	string	Absolute .json file written by pcg.export_graph; used instead of document.

Returns: asset, nodeMap, nodeCount, edgeCount, parameterCount.

pcg.inspect_node_output (risk 0, UE 5.8+, requires plugin PCG, requires world, smoke)

Summarizes the data a node produced in the component's last generation (per pin: data class, point count, bounds, attributes, tags). node '$output' reads the graph output without inspection; other nodes need pcg.set_component_inspection before generating. UE 5.8+.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
component	string	PCG component name; may be empty only when the actor has exactly one PCG component.
node	string	required. Node name or unique title in the component's graph.
pin	string	Optional output pin label filter.

Returns: node, inspecting, executed, stacks, data, message.

pcg.list (risk 0, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
folder	string	Content folder. Default TEXT("/Game").
limit	integer	Maximum results. Default 100.

Returns: assets, count, message.

pcg.list_actor_data_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list actor data nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_available_subgraphs (risk 0, UE 5.4+, requires plugin PCG, smoke)

Lists graph and graph-instance assets that can be used as a subgraph inside the given graph (itself and graphs that already contain it are excluded as cycles). UE 5.4+.

Argument	Type	Description
graph	string	required. Graph that would host the subgraph node; candidates that would create a cycle are excluded.
folder	string	Content folder searched recursively. Default TEXT("/Game").
limit	integer	Maximum candidates returned. Default 100.

Returns: candidates, excluded, count.

pcg.list_comment_boxes (risk 0, UE 5.6+, requires plugin PCG, smoke)

Lists the graph's comment boxes. UE 5.6+ (comments stored on the graph).

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: box, boxes, count.

pcg.list_component_parameters (risk 0, UE 5.4+, requires plugin PCG, requires world, smoke)

Lists the graph parameters seen by a component with its override state and values. UE 5.4+.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
component	string	PCG component name; may be empty only when the actor has exactly one PCG component.

Returns: component, parameters, count, message.

pcg.list_components (risk 0, UE 5.2+, requires plugin PCG, requires world, smoke)

Lists PCG components in the editor world, optionally only those using one graph.

Argument	Type	Description
graph	string	Optional PCG graph asset path; when set only components/volumes using that graph are listed.

Returns: components, count.

pcg.list_connected_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list connected nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_connected_pins (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list connected pins for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_debug_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list debug nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_edge_pairs (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list edge pairs for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_edges (risk 0, UE 5.2+, requires plugin PCG, smoke)

Lists every edge with its identity 'From:FromPin->To:ToPin' (node object names).

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: edges, count.

pcg.list_filter_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list filter nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_input_pins (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list input pins for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_instance_overrides (risk 0, UE 5.3+, requires plugin PCG, smoke)

Lists the parameters of a graph instance with override state, instance value and parent value. UE 5.3+.

Argument	Type	Description
instance	string	required. PCG graph instance asset path.

Returns: parameters, count, readers, message.

pcg.list_metadata_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list metadata nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_node_classes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list node classes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_node_positions (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list node positions for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_node_titles (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list node titles for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Lists every node with its pin schema (allowed types, multiplicity, required/advanced, edge count).

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: nodes, count.

pcg.list_orphan_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list orphan nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_output_pins (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list output pins for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_parameter_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list parameter nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_parameters (risk 0, UE 5.3+, requires plugin PCG, smoke)

Lists the user parameters of a graph or graph instance: name, type, type object, container, value, GUID (instances also override state and parent value). UE 5.3+.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: parameters, count, readers, message.

pcg.list_pins (risk 0, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node object name returned by list_nodes, or its authored title when unique.

Returns: node, message.

pcg.list_placed_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list placed nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_point_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list point nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_sampler_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list sampler nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_sink_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list sink nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_source_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list source nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_spatial_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list spatial nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_spawner_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list spawner nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_unconnected_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list unconnected nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_unconnected_pins (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list unconnected pins for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_unplaced_nodes (risk 0, UE 5.2+, requires plugin PCG, smoke)

Inspects list unplaced nodes for one graph.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: values, items, count, message.

pcg.list_volumes (risk 0, UE 5.2+, requires plugin PCG, requires world, smoke)

Lists PCG volumes in the editor world, optionally only those using one graph.

Argument	Type	Description
graph	string	Optional PCG graph asset path; when set only components/volumes using that graph are listed.

Returns: volumes, count, message.

pcg.move_node (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node name.
x	integer	Graph X. Default 0.
y	integer	Graph Y. Default 0.

Returns: node, message.

pcg.refresh (risk 2, mutates, UE 5.4+, requires plugin PCG, requires world, smoke)

Schedules a refresh of the component (PCG decides whether to regenerate, as after an edit). Asynchronous. UE 5.4+.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
component	string	PCG component name; may be empty only when the actor has exactly one PCG component.

Returns: message, count, generating, cleaningUp.

pcg.remove_comment_box (risk 2, mutates, UE 5.6+, requires plugin PCG, smoke)

Removes a comment box by GUID. UE 5.6+.

Argument	Type	Description
graph	string	required. PCG graph asset path.
id	string	required. Comment box GUID, or its exact comment text when unique.

Returns: box, boxes, count.

pcg.remove_node (risk 3, mutates, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node object name returned by list_nodes, or its authored title when unique.

Returns: message, count, generating, cleaningUp.

pcg.remove_nodes (risk 3, mutates, UE 5.2+, requires plugin PCG, smoke)

Removes several nodes at once (all references are resolved first; graph input/output nodes are refused).

Argument	Type	Description
graph	string	required. PCG graph asset path.
nodes	array of string	required. Node names or unique titles; all are resolved before anything is removed.

Returns: nodes, count.

pcg.remove_parameter (risk 3, mutates, UE 5.5+, requires plugin PCG, smoke)

Removes a graph parameter; refused while Get Graph Parameter nodes read it unless force is true. UE 5.5+.

Argument	Type	Description
graph	string	required. PCG graph asset path.
name	string	required. Parameter name.
force	boolean	Remove even when Get Graph Parameter nodes read it (they become invalid). Default false.

Returns: parameters, count, readers, message.

pcg.remove_volume (risk 3, mutates, destructive, UE 5.2+, requires plugin PCG, requires world, smoke)

No description.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.

Returns: message, count, generating, cleaningUp.

pcg.rename (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
graph	string	required. Graph asset.
name	string	required. Bare new name.

Returns: asset, nodeCount, message.

pcg.rename_parameter (risk 2, mutates, UE 5.6+, requires plugin PCG, smoke)

Renames a graph parameter through PCG (Get Graph Parameter nodes and instance overrides follow). UE 5.6+.

Argument	Type	Description
graph	string	required. PCG graph asset path.
name	string	required. Current parameter name.
newName	string	required. New parameter name (valid identifier).

Returns: parameters, count, readers, message.

pcg.reset_node_setting (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Restores one editable setting (dotted path allowed) to the settings-class default.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node name or title.
property	string	required. Editable property path, e.g. PointsPerSquaredMeter or SamplerParams.Mode.

Returns: node, values, count, message.

pcg.save (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: asset, nodeCount, message.

pcg.set_actor_selector (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets which actors a Get Actor Data node (or Get Spline/Volume/Primitive/Landscape Data) reads, and its mode.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Get Actor Data (or Get Spline/Volume/Primitive/Landscape Data) node name or title.
actorFilter	string	EPCGActorFilter: Self, Parent, Root, AllWorldActors, Original.
actorSelection	string	EPCGActorSelection: ByTag, ByClass.
tag	string	Actor tag used with ByTag; empty keeps the current tag.
actorClass	string	Actor class used with ByClass; empty keeps the current class.
selectMultiple	string	"true"/"false": select every matching actor, not only the first.
includeChildren	string	"true"/"false": include the selected actors' children.
mustOverlapSelf	string	"true"/"false": only actors overlapping the PCG component bounds.
mode	string	EPCGGetDataFromActorMode: ParseActorComponents, GetSinglePoint, GetDataFromProperty, GetDataFromPCGComponent...

Returns: node, values, count, message.

pcg.set_add_tags (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Sets the tags written by an Add Tags node (UE 5.4+).

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Add Tags node name or title.
tags	array of string	required. Tags added to every data item (no commas inside a tag).

Returns: node, values, count, message.

pcg.set_attribute_selector (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Writes an attribute/property selector setting (e.g. InputSource '$Density', OutputTarget 'Height') after validating it is selector-typed.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node name or title.
property	string	required. Selector property path, e.g. InputSource, OutputTarget, Parameters.ComparisonSource.
selector	string	required. Selector text: an attribute name, $Property (e.g. $Density, $Position.Z) or @Last.

Returns: node, values, count, message.

pcg.set_bounds_modifier (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets mode, bounds operands and steepness of a Bounds Modifier.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Bounds Modifier node name or title.
mode	string	EPCGBoundsModifierMode: Set, Intersect, Include, Translate, Scale.
setBounds	boolean	Write boundsMin/boundsMax. Default false.
boundsMin	{x,y,z}	Bounds min operand. Default FUeaVec3(1,1,1).
boundsMax	{x,y,z}	Bounds max operand. Default FUeaVec3(1,1,1).
affectSteepness	string	"true"/"false": also change the point steepness.
steepness	number	Steepness 0..1. Default -1.

Returns: node, values, count, message.

pcg.set_component (risk 2, mutates, UE 5.2+, requires plugin PCG, requires world, smoke)

No description.

Argument	Type	Description
actor	string	required. Actor reference.
component	string	Component name.
graph	string	Optional graph asset path.
seed	integer	Seed, or -1 to leave unchanged. Default -1.
activated	string	Optional activated state: true or false.
generationTrigger	string	Optional public generation trigger enum text.

Returns: component, message.

pcg.set_component_inspection (risk 1, UE 5.8+, requires plugin PCG, requires world, smoke)

Enables or disables per-node data capture on a component; needed before pcg.inspect_node_output can read intermediate nodes. UE 5.8+.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
component	string	PCG component name; may be empty only when the actor has exactly one PCG component.
enabled	boolean	Enable (true) or disable (false) per-node data capture for the next generations. Default true.

Returns: node, inspecting, executed, stacks, data, message.

pcg.set_component_parameter_override (risk 2, mutates, UE 5.4+, requires plugin PCG, requires world, smoke)

Overrides a graph parameter on this component only (its graph instance). UE 5.4+.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
component	string	PCG component name; may be empty only when the actor has exactly one PCG component.
name	string	required. Graph parameter name.
value	string	Override value in UE text form (ignored by clear).

Returns: component, parameters, count, message.

pcg.set_create_points (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Replaces the explicit point list of a Create Points node (UE 5.4+).

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Create Points node name or title.
points	array of {x,y,z}	required. Point locations (cm) in coordinateSpace.
extents	{x,y,z}	Half size of every point (cm, > 0). Default FUeaVec3(50,50,50).
density	number	Density of every point 0..1. Default 1.
coordinateSpace	string	EPCGCoordinateSpace: World, OriginalComponent, LocalComponent; empty keeps the current one.

Returns: node, values, count, message.

pcg.set_create_points_grid (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Sets extents, cell size, space and point placement of a Create Points Grid node (UE 5.4+; pointSteepness 5.5+).

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Create Points Grid node name or title.
gridExtents	{x,y,z}	Half size of the grid in cm.
cellSize	{x,y,z}	Cell size in cm (all components > 0 when given).
pointSteepness	number	Point steepness 0..1 (UE 5.5+). Default -1.
coordinateSpace	string	EPCGCoordinateSpace: World, OriginalComponent, LocalComponent.
pointPosition	string	EPCGPointPosition: CellCenter, CellCorners.
setPointsBounds	string	"true"/"false": give points the cell bounds.
cullPointsOutsideVolume	string	"true"/"false": drop points outside the component volume.

Returns: node, values, count, message.

pcg.set_delete_tags (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Sets the selected tags and operation of a Delete Tags node (UE 5.4+).

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Delete Tags node name or title.
tags	array of string	required. Selected tags (no commas inside a tag).
operation	string	EPCGTagFilterOperation: DeleteSelectedTags, KeepOnlySelectedTags; empty keeps the current one.

Returns: node, values, count, message.

pcg.set_density_filter (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets the density band and inversion of a Density Filter.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Density Filter node name or title.
lowerBound	number	Lowest kept density 0..1. Default -1.
upperBound	number	Highest kept density 0..1. Default -1.
invertFilter	string	"true"/"false": keep the points outside the band instead.

Returns: node, values, count, message.

pcg.set_density_noise (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets mode, range and inversion of the density noise node created by pcg.add_density_noise.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Density noise node name or title (created by pcg.add_density_noise).
mode	string	Noise mode: Set, Minimum, Maximum, Add, Multiply.
setRange	boolean	Write noiseMin/noiseMax. Default false.
noiseMin	number	Lowest random value. Default 0.
noiseMax	number	Highest random value. Default 1.
invertSource	string	"true"/"false": invert the source value before applying.

Returns: node, values, count, message.

pcg.set_difference (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets density function, mode and metadata diffing of a Difference node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Difference node name or title.
densityFunction	string	EPCGDifferenceDensityFunction: Minimum, ClampedSubstraction, Binary.
mode	string	EPCGDifferenceMode: Inferred, Continuous, Discrete.
diffMetadata	string	"true"/"false": diff metadata as well.

Returns: node, values, count, message.

pcg.set_distance (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets maximum distance, density output and shapes of a Distance node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Distance node name or title.
maximumDistance	number	Maximum distance in cm (> 0). Default -1.
setDensity	string	"true"/"false": write the normalized distance into the density.
outputDistanceVector	string	"true"/"false": output the vector instead of the scalar distance.
sourceShape	string	PCGDistanceShape of the source points: SphereBounds, BoxBounds, Center.
targetShape	string	PCGDistanceShape of the target points.

Returns: node, values, count, message.

pcg.set_graph_settings (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets graph-level settings by key (see pcg.get_graph_settings); every key and value is validated before the graph changes. Returns all settings.

Argument	Type	Description
graph	string	required. PCG graph asset path.
settings	array of UeaKeyValue	required. Key/value pairs; keys as returned by pcg.get_graph_settings (hierarchicalGeneration, hiGenGridSize, use2DGrid, landscapeUsesMetadata, exposeToLibrary, category, description...), values in UE text form.

Returns: graph, settings, unavailable.

pcg.set_instance_graph (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Re-targets a graph instance to another graph or instance (refused when it would create a cycle); overrides of parameters that still exist are kept. UE 5.4+.

Argument	Type	Description
instance	string	required. PCG graph instance asset path.
graph	string	required. New parent PCG graph or graph instance; must not create a cycle.

Returns: asset, parent, rootGraph, parameterCount, overriddenCount.

pcg.set_instance_override (risk 2, mutates, UE 5.4+, requires plugin PCG, smoke)

Overrides one parameter on a graph instance (value validated against the type first). UE 5.4+.

Argument	Type	Description
instance	string	required. PCG graph instance asset path.
name	string	required. Parameter name.
value	string	required. Override value in UE text form.

Returns: parameters, count, readers, message.

pcg.set_mesh_spawner_meshes (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Replaces the weighted mesh entries of a Static Mesh Spawner (weighted selector).

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Static Mesh Spawner node name or title.
meshes	array of string	required. Static mesh asset paths (at least one).
weights	array of integer	One weight (> 0) per mesh; empty gives every mesh weight 1.

Returns: node, values, count, message.

pcg.set_node_comment (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets or clears the node comment bubble.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node name or title.
comment	string	Comment text; empty clears it.
bubbleVisible	boolean	Show the comment bubble in the graph editor. Default true.

Returns: node, message.

pcg.set_node_debug (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Toggles the node debug flag (transient: draws the node output on the next generation, not saved).

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node name or title.
debug	boolean	New debug state (transient: draws the node output in the level on next generation, not saved). Default true.

Returns: node, message.

pcg.set_node_enabled (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Enables or disables a node (a disabled node passes its input through); refused for nodes that cannot be disabled.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node name or title.
enabled	boolean	New enabled state (disabled nodes pass their input through). Default true.

Returns: node, message.

pcg.set_node_setting (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Writes one setting; the path may enter structs and instanced sub-objects (MeshSelectorParameters.MeshEntries).

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node name.
property	string	required. Reflected setting property path; dots enter structs and instanced sub-objects (MeshSelectorParameters.MeshEntries).
value	string	UE text-import value (ignored by get_node_setting).

Returns: node, message.

pcg.set_node_settings (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Writes several settings at once; the list is first applied to a scratch copy so a bad entry leaves the node untouched.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node name or title.
settings	array of UeaKeyValue	required. Property path/value pairs; all are validated on a scratch copy before the node is changed.

Returns: node, properties, count.

pcg.set_node_title (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

No description.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Node object name.
title	string	Authored title; empty clears it.

Returns: node, message.

pcg.set_normal_to_density (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets reference normal, offset, strength and mode of a Normal To Density node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Normal To Density node name or title.
normal	{x,y,z}	Reference normal; all zero keeps the current one.
setOffset	boolean	Write offset. Default false.
offset	number	Offset added to the dot product (-1..1). Default 0.
strength	number	Strength exponent (> 0); negative keeps the current value. Default -1.
densityMode	string	PCGNormalToDensityMode: Set, Minimum, Maximum, Add, Subtract, Multiply, Divide.

Returns: node, values, count, message.

pcg.set_parameter (risk 2, mutates, UE 5.5+, requires plugin PCG, smoke)

Sets the default value of a graph parameter (validated against its type first); instances that do not override it follow. UE 5.5+.

Argument	Type	Description
graph	string	required. PCG graph asset path.
name	string	required. Parameter name.
value	string	required. New default value in UE text form, validated against the parameter type.

Returns: parameters, count, readers, message.

pcg.set_self_pruning (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets pruning type, radius similarity and randomization of a Self Pruning node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Self Pruning node name or title.
pruningType	string	EPCGSelfPruningType: LargeToSmall, SmallToLarge, AllEqual, None, RemoveDuplicates.
radiusSimilarityFactor	number	Radius similarity factor (>= 0). Default -1.
randomizedPruning	string	"true"/"false": randomize the pruning order.

Returns: node, values, count, message.

pcg.set_spline_sampler (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets mode, dimension, fill and spacing of a Spline Sampler.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Spline Sampler node name or title.
mode	string	EPCGSplineSamplingMode: Subdivision, Distance (NumberOfSamples on 5.4+).
dimension	string	EPCGSplineSamplingDimension: OnSpline, OnHorizontal, OnVertical, OnVolume, OnInterior.
fill	string	EPCGSplineSamplingFill: Fill, EdgesOnly.
subdivisionsPerSegment	integer	Points per spline segment (Subdivision mode, >= 0). Default -1.
distanceIncrement	number	Distance between points in cm (Distance mode, > 0). Default -1.
interiorSampleSpacing	number	Interior sample spacing in cm (OnInterior, > 0). Default -1.
projectOntoSurface	string	"true"/"false": project interior samples onto the surface.

Returns: node, values, count, message.

pcg.set_subgraph (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets the graph executed by a Subgraph or Loop node (refuses the owning graph).

Argument	Type	Description
graph	string	required. PCG graph asset path that owns the node.
node	string	required. Subgraph or Loop node name or title.
subgraph	string	required. PCG graph asset executed by the node (not the owning graph).

Returns: node, values, count, message.

pcg.set_surface_sampler (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets the Surface Sampler density, point extents, looseness, steepness and bounded mode.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Surface Sampler node name or title.
pointsPerSquaredMeter	number	Points per square meter (> 0). Default -1.
pointExtents	{x,y,z}	Half size of every sampled point in cm.
looseness	number	Looseness 0..1 of the sampling grid jitter. Default -1.
pointSteepness	number	Point steepness 0..1. Default -1.
unbounded	string	"true"/"false": sample the whole surface instead of the bounding shape.
applyDensityToPoints	string	"true"/"false": multiply the surface density into the points.

Returns: node, values, count, message.

pcg.set_transform_points (risk 2, mutates, UE 5.2+, requires plugin PCG, smoke)

Sets the random offset/rotation/scale ranges and absolute/uniform flags of a Transform Points node.

Argument	Type	Description
graph	string	required. PCG graph asset path.
node	string	required. Transform Points node name or title.
setOffset	boolean	Write offsetMin/offsetMax. Default false.
offsetMin	{x,y,z}	Minimum random offset (cm).
offsetMax	{x,y,z}	Maximum random offset (cm).
setRotation	boolean	Write rotationMin/rotationMax. Default false.
rotationMin	{x,y,z}	Minimum random rotation (pitch, yaw, roll degrees).
rotationMax	{x,y,z}	Maximum random rotation (pitch, yaw, roll degrees).
setScale	boolean	Write scaleMin/scaleMax. Default false.
scaleMin	{x,y,z}	Minimum random scale (x only is used when uniformScale). Default FUeaVec3(1,1,1).
scaleMax	{x,y,z}	Maximum random scale. Default FUeaVec3(1,1,1).
uniformScale	string	"true"/"false": one random factor for all axes.
absoluteOffset	string	"true"/"false": offset replaces the point location.
absoluteRotation	string	"true"/"false": rotation replaces the point rotation.
absoluteScale	string	"true"/"false": scale replaces the point scale.

Returns: node, values, count, message.

pcg.update_comment_box (risk 2, mutates, UE 5.6+, requires plugin PCG, smoke)

Changes a comment box (text, position, size, font size, color). UE 5.6+.

Argument	Type	Description
graph	string	required. PCG graph asset path.
id	string	required. Comment box GUID from list/add, or its exact comment text when unique.
comment	string	New text; empty leaves it unchanged.
move	boolean	Apply x/y. Default false.
x	integer	Default 0.
y	integer	Default 0.
resize	boolean	Apply width/height. Default false.
width	integer	Default 400.
height	integer	Default 100.
fontSize	integer	New font size; 0 leaves it unchanged. Default 0.
setColor	boolean	Apply color. Default false.
color	{x,y,z}	RGB color 0..1. Default FUeaVec3(1,1,1).

Returns: box, boxes, count.

pcg.validate (risk 0, UE 5.3+, requires plugin PCG, smoke)

Checks a graph: null settings, invalid edges, unconnected required pins, unknown parameter reads, disabled nodes, nodes that never reach the output. UE 5.3+.

Argument	Type	Description
graph	string	required. PCG graph asset path.

Returns: graph, valid, errorCount, warningCount, issues.

pcg.wait_generation (risk 0, UE 5.2+, requires plugin PCG, requires world, smoke)

Lets editor frames pass until the component is idle (never ticks the editor); a timeout is a failure. Call it as a separate request, not inside a batch.

Argument	Type	Description
actor	string	required. Actor label, object name, or path.
component	string	PCG component name; may be empty only when the actor has exactly one PCG component.
maxFrames	integer	Maximum editor frames to wait. Default 300.

Returns: message, count, generating, cleaningUp.