Settings

This page summarizes the most important editor-facing settings.

Planet Data Asset

Setting	Description
Planet Radius	Base radius before elevation.
Noise Height	Normalized height to world displacement scale.
Generation Seed	Stable seed used by terrain material expressions.
Min Recursion Level	Minimum chunk recursion level.
Max Recursion Level	Maximum chunk recursion level.
Planet Material	Visible surface material used by generated terrain chunks.
Generation Material	Computes terrain height and vertex colors.
Biome Mask Material	Chooses biome IDs for the generated biome-cell map.
Biome Layers	Ordered biome entries. Later entries have higher biome-mask priority.
Planet Position Scale	Scale exposed through Planet Position.
Generate Water	Enables water settings and water generation.
Water Material	Near/primary water material.
Far Water Material	Water material used according to the material-change recursion threshold.
Water Simulation Data	Native GPU ocean simulation parameter asset. Planets using the same asset share one simulation.
Recursion Level For Material Change	Water material switch recursion threshold.

Material Output Settings

These controls moved from Planet Data to the material output nodes that use them:

Node	Setting	Description
Planet Biome Mask Output	Biome Cell Resolution	Voronoi cells per cube-face edge and baked map resolution.
Planet Biome Mask Output	Biome Cell Seed	Deterministic biome-cell layout seed.
Planet Elevation Output	Biome Transition	Biome influence falloff width.
Planet Elevation Output	Height Blend Biome Materials	Favors the material of the biome producing the highest elevation.
Planet Elevation Output	Biome Material Height Blend Smoothness	Normalized height range over which lower materials fade.
Planet Elevation Output	Biome Voronoi Warp Strength	Biome lookup warp strength; zero disables it.
Planet Elevation Output	Biome Voronoi Warp Scale	Biome lookup warp frequency.

Planet Spawner

Setting	Description
Use Editor Tick	Enables editor-time generation ticking.
Show Generation Debug	Displays current generation progress and timing.
Planet Data	Planet Data asset used by the placed spawner.
Chunk Quality	Terrain vertex resolution per chunk. Runtime changes apply when chunks are generated; use RegeneratePlanet() to rebuild existing chunks.
Use Screen Space LOD	Selects terrain recursion from projected screen-space error.
LOD Target Pixel Error	Projected split threshold; lower values select more detail.
LOD Merge Hysteresis	Fraction of the split threshold used for merging to reduce LOD oscillation.
LOD Geometric Error Scale	Scales the estimated error used by screen-space LOD.
Generate Detailed Normals	Generates full-resolution terrain normal textures. Requires Planet Apply Generated Surface Normal in the surface material and regeneration after changing.
Use Lightweight Terrain Component	Uses the render-only path for ordinary non-Nanite visual chunks.
Height Brush Texture Resolution Clamp	Maximum dimension retained when compiling brush texture masks. Smaller textures keep their source resolution.
Generate Collisions	Enables terrain collision streaming around collision invokers.
Wait For Initial Collision Before Generation Finished	Delays On Planet Generation Finished until the collision cells requested on the first runtime generation tick are ready.
Generate Editor Collisions	Generates collision around the editor viewport camera and placed collision invokers.
Editor Camera Collision Radius	Surface radius requested around the active editor camera. Defaults to 10,000 cm.
Editor Camera Height Margin	Additional editor-camera activation height above the resolved terrain maximum. May be negative.
Match Collision Chunks To Max Recursion Level	Uses collision-cell boundaries matching visible terrain at Max Recursion Level.
Collision Chunk Size	Requested collision-cell edge size in centimeters when matching is disabled. Rounded to a valid cube-face grid subdivision.
Collision Chunk Quality	Collision mesh quads per edge. 0 uses visible Chunk Quality.
Generate Foliage Collision	Generates physics-only foliage instances for eligible collision-enabled foliage entries.
Debug Draw Collision Chunks	Displays collision chunks as ordinary Lit meshes.
Use Local Collision Height Cutoff	Uses cached collision-cell and nearby visible-terrain height bounds for invoker altitude checks.
Max Cached Collision Cell Heights	Maximum exact collision-cell height entries retained for local altitude checks. 0 disables the persistent cache.
Generate Foliage	Generates biome foliage.
Generate Ray Tracing Proxy	Generates a ray tracing proxy for hardware ray tracing features. Required for Hardware Lumen; Software Lumen is not supported for generated planet terrain.
Ray Tracing Recursion Level Margin	Number of recursion levels below Max Recursion Level that also build terrain ray tracing proxy data. 0 limits proxy data to the finest chunks; higher values include additional coarser chunk levels.
Async Init Body	Uses Unreal's asynchronous physics-state pre-registration for foliage collision components when supported.
Nanite Landscape	Builds Nanite terrain chunks. Nanite can improve rendering of high-detail surfaces, but chunk build time is slower than normal static mesh chunks.
Generate Second UV Channel	Adds high-precision reconstruction UV channel.
Use Full Precision UVs	Uses 32-bit UV precision when second UV channel is disabled.
Foliage Shadow Cache Mode	Accurate keeps animated WPO shadows correct; Cached reduces invalidation at the cost of rigid shadows.
Foliage Minimum Biome Blend Strength	Ignores negligible biome contributions during foliage spawning.
Global Foliage Density Scale	Global foliage density multiplier.
Surface Query Interval	Minimum interval between asynchronous batches of registered actor surface samples.
Max Surface Queries Per Batch	Maximum actors sampled per batch; larger sets are served round-robin.
Enable Ocean Simulation	Runs the native GPU ocean simulation.
Max Recursion Water Tessellation	High-detail water tessellation.
Far Water Tessellation	Distant water tessellation.
Generate Custom Depth Water Coverage	Adds custom-depth-only water coverage.
Custom Depth Water Resolution Percent	Custom-depth water tessellation scale.
Custom Depth Water Material	Material used by custom-depth-only water chunks.
Generate Water Skirts	Adds skirts to hide water cracks.
Water Skirt Length Scale	Water skirt length as chunk-size fraction.
Volumetric Cloud Actor	Cloud actor updated by the spawner's cloud utility.
Max Chunk Completions Per Frame	Work throttle for chunk completions.
Max Chunk Generation Starts Per Frame	Work throttle for new chunk builds.
Max Collision Chunk Generation Starts Per Frame	Maximum collision-grid jobs that can consume the shared generation-start budget each frame.
Max Concurrent GPU Generations	Hard limit for terrain/foliage GPU jobs waiting for readback.
Max Concurrent Mesh Builds	CPU mesh build concurrency limit.
Foliage Upload Batch Size	Instance transforms uploaded per chunk per frame.
Max Foliage Instances Per Chunk	Hard foliage cap per chunk.
Max Pooled Chunk Objects	Maximum idle chunk objects kept for reuse.
Max Pooled Foliage ISM Components	Maximum idle CPU foliage components kept for reuse.
Max Pooled GPU Foliage Components	Maximum idle GPU foliage components kept for reuse.
Max Pooled Foliage Collision Components	Maximum idle physics-only foliage collision components kept for reuse.
Max Pooled Water Components	Maximum idle water mesh components kept for reuse.
Max Pool Objects Destroyed Per Frame	Maximum pooled objects destroyed per frame while trimming pools.

Planet Height Brush

Setting	Description
Target Planet	Planet Spawner that owns the compiled stamp.
Radius	Surface radius of the stamp in centimeters.
Height Operation	Selects Add, Subtract, Multiply, Flatten, or Cutout.
Height Delta	Displacement magnitude used by Add and Subtract.
Height Multiplier	Multiplier applied to the current procedural displacement.
Flatten Height	Target displacement from the base planet radius.
Cutout Mask Threshold	Influence at which adjoining terrain triangles, collision, and foliage are removed.
Inner Radius Ratio	Fraction of the radius receiving full influence before falloff begins.
Falloff	Linear or Smooth Step radial falloff.
Priority	Deterministic overlap order. Higher-priority brushes are evaluated later.
Recursion Levels From Max	0 affects every LOD. Positive values select that many finest LOD levels; 1 affects only the maximum level.
Enabled	Includes or excludes the brush from the compiled planet cache.
Brush Opacity	Multiplies every enabled brush effect.
Affect Height Displacement	Enables the selected height operation or cutout. Disable it for biome and vertex-color-only use.
Biome Name	Name of the target biome in the assigned Planet Data asset.
Biome Strength	Multiplier for the biome effect.
Biome Application	Chooses Material + Foliage or Generation Biome behavior.
Biome Mode	Additively blends or replaces Material + Foliage biome weights.
Biome Cell Mask Threshold	Minimum influence required to replace a discrete Generation Biome cell.
Use Texture As Biome Mask	Multiplies biome influence by the texture mask.
R / G / B / A	Independently enables a vertex-color channel, sets its value, and optionally inverts its mask.
Height Texture	Optional scalar mask. Black preserves the original result and white applies full influence.
Texture Channel	Selects Luminance, Red, Green, Blue, or Alpha from the source texture.
Texture Rotation	Rotates the projected texture around the brush direction.
Texture Scale	Scales the projected texture footprint.

Planet Collision Invoker Component

Setting	Description
Target Planet	Explicit planet to invoke. When unset, the nearest planet surface is selected automatically.
Collision Radius	Radius of the collision request projected onto the planet surface. Defaults to 10,000 cm.
Height Margin	Additional collision activation height above the resolved terrain maximum. Defaults to 25,000 cm and may be negative.
Height Deactivation Hysteresis	Additional retained activation height that prevents rapid collision churn.
Height Prediction Time	Extends activation using inward radial velocity.
Automatic Planet Search Interval	Delay between nearest-planet searches when Target Planet is unset.

Foliage Data Asset

Setting	Description
Meshes	Mesh variants with probability weights.
Foliage Density	Spawn density for the entry.
Density Vertex Color Channel	Optional vertex-color channel density mask.
Spawn Distance	Distance at which instances are spawned.
Uniform Scale / Scale	Chooses uniform or per-axis random scaling inside the interval.
Culling Distance	Instance cull distance.
Align To Terrain	Aligns instances to terrain normals.
Min Height / Max Height	Height placement range.
Height Cutoff Smoothness	Non-negative feather width in centimeters inside both height cutoffs. 0 uses an inclusive hard cutoff.
Min Slope / Max Slope	Slope placement range.
Slope Cutoff Smoothness	Non-negative feather width on the existing slope scale inside both slope cutoffs. 0 uses an inclusive hard cutoff.
Enable Collision	Enables collision for this foliage.
Collision Range	Maximum surface distance from a collision invoker in centimeters. A negative serialized value derives its range from the deprecated recursion-distance setting.
Force CPU ISMC	Forces CPU-backed instancing.
Force Mesh LOD 0	Enabled by default. When enabled, all instances in each CPU ISMC or GPU-indirect component are forced to internal mesh LOD 0. When disabled, Unreal normally selects LOD per instance, allowing different LODs in the same component simultaneously; without GPU per-instance LOD support, selection falls back to per component. Independent of the PPG LODs mesh array.
Enable WPO / WPO Disable Distance	Enables material WPO and optionally disables it beyond a hard distance.
Visible In Ray Tracing	Includes the foliage in ray tracing effects.
Pass Terrain Vertex Color To Custom Data	Writes terrain vertex color to per-instance custom data.
LODs	Alternate aligned mesh arrays with activation distance, WPO state, and density scale.
Enable Clustering	Enables deterministic cross-chunk foliage clusters.
Cluster Size Min / Max	Number of members per cluster.
Cluster Radius	Spatial spread of each cluster.