Celestial Cycle: Dynamic Season – URP Snow, Rain & Footprints

Compatibility

• Unity 6000.3.21f1 / URP 17.3.0. URP only; Built-in RP and HDRP are not supported.
• Core Windows sample checks passed on DX11/DX12 with RenderGraph and Compatibility. Mobile, XR and other Unity versions are not certified. Profile advanced effects on your hardware.

Surface workflow

• Camera effects support visible opaque, depth-writing materials. Transparent/custom shaders and specialized render paths may need integration.
• Terrain uses separate material/profile and seasonal-texture setup. Leafless vegetation requires prepared variants.

Interactions

• Connect character contacts for footprints, splashes and ripples; custom controllers can use the contact API.
• Optional desktop tessellated mesh snow and Terrain snow geometry affect visuals, not source colliders. Camera passes and additional geometry have a rendering cost.
• Indoor exclusions, seasonal LUT controls and lightweight flat weather clouds are included.

Included demo character

29,772 triangles · one skinned mesh/material · 2K PBR maps · up to four skin influences · 22-bone Humanoid body rig · idle/walk clips · two sole contacts.

A walking/contact example, not a full controller or animation pack. No facial/finger rig or run/jump set.

Showcase content

MCastle by ASTROFISH, external characters and purchased motions are not included. Showcases may use separate Day & Night, Ocean or Player products and scene-specific grading/lighting. Tutorial examples distinguish included content from external environments.

Earlier Nature releases bundled Day & Night; this separate Season product does not change previous purchasers’ entitlements. See the purchase information above for the Legacy Nature compatibility notice.

Documentation

Online guide

Offline: Assets/CelestialCycle/Dynamic Season/Documentation/Manual.md

Celestial Cycle is the product brand. Published by Ereroa; videos are hosted on World Alchemist.

Your scene. Every season. Every step.

Bring changing weather and interactive surfaces to the world you have already built.

CHANGE THE ATMOSPHERE

From autumn color to snowfall and rain-soaked ground. Turn supported foliage from green to gold without replacement leaf textures. Set the mood from one Manager.

MAKE EVERY STEP REACT

Connect your character for snow footprints, wet-ground splashes and ripples. Add optional deep snow for a stronger sense of depth.

KEEP YOUR MATERIALS

Camera-based effects work with supported opaque, depth-writing object materials—no per-object shader replacement. Unity Terrain uses dedicated setup tools.

START WITH A WORKING EXAMPLE

Included: self-contained Terrain Demo, demo character with walking/contact reference, offline manual and setup tools.

Start in Celestial Hub → choose weather → connect your character.

See it. Then build it.

Watch the showcase · Follow the six-minute tutorial · Read the guide

Before you buy

URP only. Day & Night, Ocean and Player are optional, separate products. MCastle and other third-party showcase art are not included.

Using legacy Dynamic Nature?

Season is a separate product, not an overwrite upgrade. Nature 1.1.1 co-installation is not yet verified. A Nature compatibility patch is planned soon (date TBA); wait for it before combining the packages.