Poseidon 2 - Low Poly Water System v2.0.3 (27 Feb 2026)
Poseidon 2 is a low poly water system designed for faceted games. It offers Shader Graph-created shaders and tools to create and edit water objects in common scenarios, including oceans, rivers, streams, lakes, and ponds.
Water bodies are created using dedicated components based on the desired type:
- Tileable Water: Repeats a plane-like mesh to cover large areas.
- Area Water: Uses anchor points to define the water shape.
- River Water: Utilizes multiple interconnected splines to define the water path.
The system relies on standard mesh renderers and materials, keeping the implementation simple and effective.
The water shaders are built using Shader Graph in a modular fashion, allowing easy customization through graph adjustments such as rewiring or adding/removing subgraphs. Alternatively, users can switch between over 20 pre-made shader variants, each optimized for PC, mobile, or VR projects.
Poseidon 2 provides water data that can be integrated into gameplay logic:
- Water level: Retrieve the height of water at any scene point using C# (e.g., for buoyancy systems).
- Events: Trigger actions when a player enters or exits a water body (e.g., play breathing sounds, start swimming animations, emit particles).
Note: A full buoyancy system is not included.
The resource pack includes a user guide and scripting API for developers.
This version represents a major update with a reworked structure and workflow, intended to replace Poseidon 1 entirely. Coexistence of both versions is not recommended, as it may cause project issues. Some features have been removed or deprecated to align with the future roadmap. Existing users can upgrade to Poseidon 2 for free.
Home Page: https://assetstore.unity.com/packages/vfx/shaders/poseidon-2-low-poly-water-system-357908
