TerrainGen

24 tools in this family (folder Editor/Tools/TerrainGen/ in the bridge package). Effect: writes changes the project or the scene, read-only does not, destructive deletes or overwrites and the client asks before running it.

Tool	Effect	Description
terrain_add_biome	writes	Register a biome graph weighted by weight. When the runtime has >=1 biome, the host graph is
terrain_add_node	writes	Add a new node of a given kind to a graph. Kinds: perlin_noise, simplex_noise, ridged_noise,
terrain_apply_preset	writes	Replace the contents of a graph asset with a baked preset.
terrain_configure_erosion	writes	Configure a hydraulic_erosion node's particle-droplet parameters (Beyer 2015 model).
terrain_configure_scatter	writes	Configure a scatter / forest / random_scatter node: density, distance, prototype index, etc.
terrain_connect_nodes	writes	Connect an output port to an input port. Refuses cycles and port-type mismatches.
terrain_create_graph	writes	Create a new procedural terrain graph asset (GenGraph) at the given path.
terrain_export_graph	writes	Export the graph to a JSON file (portable representation).
terrain_export_heightmap	writes	Export the heightmap of a tile to a PNG. The encoding packs 16-bit precision into the R+G
terrain_generate_minimap	writes	Render a top-down minimap PNG for a square block of tiles around (tile_x, tile_z). Each tile is
terrain_generate_river_network	writes	Compute the D8 flow-accumulation river network for the current heightmap of a tile and
terrain_generate_tile	writes	Synchronously evaluate the graph for a single tile (x,z) and apply the result to a Unity Terrain.
terrain_get_graph_info	read-only	Return graph statistics: node count, connection count, list of output nodes, list of nodes
terrain_import_graph	writes	Import a JSON graph (produced by terrain_export_graph) into a fresh asset. Reconstructs
terrain_import_heightmap	writes	Import a PNG as the base of a graph: a new stamp node is added with the imported matrix
terrain_paint_height	writes	Apply a height brush delta at a world position. Stamped onto the tile under the brush and
terrain_paint_splat	writes	Paint a splatmap-layer alpha delta at a world position. Layer index refers to the splat_output
terrain_pin_tile	writes	Pin or unpin a tile so it survives camera-driven redeploy and skips regeneration.
terrain_remove_node	writes	Remove a node and every connection touching it.
terrain_set_node_param	writes	Set one or more parameters on a graph node. Parameter names depend on the node kind
terrain_set_seed	writes	Set the graph's deterministic seed and propagate to the live runtime.
terrain_setup_infinite	writes	Enable camera-tracked infinite-terrain mode. Tiles within generate_radius of the tracker
terrain_setup_terrain	writes	Spawn a GameObject in the active scene with a TerrainGenerator component bound to the graph.
terrain_validate_graph	read-only	Run static analysis on the graph: cycle detection, orphan references, dangling inputs, and a