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Parameters Reference

A complete reference to all sections and fields in the Planet Builder window.

Sphere

  • Radius — base planet radius in world units.
  • Face Resolution — vertices per edge per cube face (cube-sphere). Higher = smoother mesh.
  • Seed — random source for continents, styles, and colors (used by Randomize).

Continents

  • Coverage % — target land percentage over the sphere.
  • Scale — noise scale (larger value → smaller, more frequent features).
  • Coast Width — blending width around shoreline (softens edges).
  • Height (×Radius) — displacement amplitude relative to the base radius.

Water & Colors

  • Sea Level (×Radius) — ocean shell radius multiplier.
  • Ocean Overlap (% radius) — pushes ocean slightly above land to hide shoreline gaps.
  • Land/Water Color — base colors for default materials.

Geo Underwater

  • Clamp To Sea Level — keeps base geometry under the water so underwater land never peeks through.
  • Underwater Inset (% radius) — how far inside the ocean the base geo sits (Overlap should be greater than Inset).

Geo Style (Shape)

Silhouette transforms applied after continents: - Classic — default FBM land forms (no extra parameters). - Crystal — faceted ridges. Parameters: - Cell Size, Jitter, Ridge Strength - MesaTerraced — stepped plateaus. Parameters: - Steps, Strength - Cratered — circular bowls with a soft rim. Parameters: - Crater Count, Min/Max Radius (×π), Depth, Rim Height

Land Surface (Geo Shader)

  • Pattern Texture — optional triplanar pattern.
  • Pattern Scale / Strength — mix intensity for the pattern into the land surface.

Atmosphere / Fog

  • Add Atmosphere — toggles the shell.
  • Color (with Alpha) — tint and opacity.
  • Thickness (% radius) — shell thickness (drawn above the ocean).

Rings

  • Add Ring — enable rings for the planet.
  • Ring Type — Saturn / Thin / Wide / Dusty / Broken / CustomFromObject.
  • Inner / Outer (× seaR) — inner/outer radius relative to sea-level radius.
  • Segments — arc tessellation (higher = cleaner edge).
  • Tint (alpha) — color and translucency.
  • Tilt X / Rotate Y — ring orientation.
  • CustomFromObject — assign a prefab/scene object to instantiate under _Ring.

Output

  • Name — root object name (Planet_[Name]).
  • Add MeshCollider — adds a MeshCollider to _Geo (optional).

Edit Selected (if present)

  • If a Planet_* root is selected in Hierarchy, Apply To Selected Root will update that planet in-place instead of creating a new one.

Actions

  • Randomize Values — shuffles sane ranges (includes Geo Style & Rings).
  • Generate Random — randomize + build in one click.
  • Generate Planet — build with current values.
  • Create Prefab — save the whole planet root to your project.
  • Create Ring Prefab — save only the ring object.