Time And Planet Setup
| Setting | What It Controls | Typical Use |
|---|---|---|
| Enable Generic Celestial System | Uses a planet profile instead of the normal Earth-style time controls. | Turn this on for alien worlds, stylized planets, or unusual day lengths. |
| Planet Preset | Quick presets: Custom, Earth, Mars, Venus, Mercury, Jupiter, Proxima Centauri b, Kepler-442b. | Pick a base sky behavior, then tune the planet settings if needed. |
| Planet Config | Axial tilt, rotation period, orbit period, orbit distance, orbit eccentricity, atmosphere density, scattering colors, and primary star values. | Create custom planets and star systems from Blueprint-editable values. |
| Enable Time Of Day Cycle | Allows the actor to tick and advance time during play. | Use for dynamic day and night cycles. |
| Time Of Day | The current time. The editor slider adapts to the active planet day length. | Preview or set a specific time from the Details panel or Blueprint. |
| Time Speed | How quickly time advances during play. | Use a high value for visible day and night transitions. |
| North Offset | Rotates the sun path around the scene. | Align sunrise and sunset with your level composition. |
| Latitude / Day Of Year | Seasonal sun angle for the normal Earth-style setup. | Change the height of the sun path and seasonal feel. |
Sky Sphere Settings
| Setting | What It Controls |
|---|---|
| Enable Sky Sphere | Shows or hides the procedural sky sphere mesh. |
| Sky Sphere Material | The sky material or material instance applied to the sphere. |
| Sky Sphere Radius | How large the sky sphere is around the actor. |
| Sky Sphere Segments | Sphere mesh resolution. |
| Sky Sphere Cast Shadows | Whether the sky sphere casts shadows. |
| Affect Distance Field Lighting | Whether the sky sphere participates in distance field lighting. |
| Cloud Opacity Min / Max | Clamps the cloud opacity that the time-of-day system sends to the material. |
| Star Brightness Min / Max | Controls how stars fade between day and night. |
| Cloud Opacity | Controls day/night cloud visibility. Horizon, zenith, and cloud colors are adjusted on the assigned material instance. |
| Panning Cloud Quality / Global Tiling | Controls procedural cloud noise octaves, Worley detail, edge softness, and overall cloud tiling to reduce blocky cloud artifacts. |
Sun, Moon, Atmosphere, Fog, And Exposure
| Group | Important Settings | Use |
|---|---|---|
| Sun | Sun Intensity, Sun Min Intensity, Sun Disk Scale, noon/sunrise/night colors, temperature influence, atmospheric shadows, shadow cascades, dynamic shadow distance. | Control the main directional light and how it colors the sky. |
| Moon | Enable Moon, Enable Moon Light, Enable Moon Phase, Moon Parameters, material, orbit values, Max Visual Elevation, rendered scale, and mesh segments. | Add the primary moon. Moon Parameters control placement, scale, orbit, light, max visible arc height, surface brightness, highland/mare/crater colors, terrain noise, regolith, crater layout, normals, and displacement. Runtime moon phase is derived from Time Of Day only when Enable Moon Phase is on. |
| Planet Config Additional Moons | Optional array for extra moons only. The primary moon is always Moon Parameters on the sky actor and is not duplicated in this array. | Add secondary moons for custom planets or presets without changing the main moon index. |
| Atmosphere | Rayleigh scale/color/distribution, Mie scale/color/absorption/anisotropy/distribution, atmosphere height, aerial perspective distance, ozone absorption, ground albedo, multi-scattering. | Shape blue sky, haze, sunset bands, dense atmospheres, and alien looks. |
| Sky Light | Enable Sky Light, intensity, cubemap resolution, real-time capture, lower hemisphere color. | Control ambient lighting contribution from the sky. |
| Height Fog | Fog density, height falloff, inscattering color, max opacity, start distance, directional inscattering, volumetric fog settings. | Add horizon depth, sunrise fog, moonlit fog, and volumetric atmosphere. |
| Post Process | Exposure override, exposure method, bias, min/max brightness, unbound mode, priority, blend weight, lens flare, bloom. | Keep day/night exposure readable and add optional sun glow. |
| Performance | Visual Update Frequency, Aggressive Optimization, Min Time Change Threshold, Sky Light Recapture Interval. | Reduce update cost in runtime scenes. |