KWS Water System (Standard Rendering)

KWS Water System is a module-based component that enables you to simulate various water surfaces such as oceans, seas, rivers, lakes, pools, etc. It's designed for PC/console platforms

Before updating, remove the old version

This version is only compatible with the standard built-in rendering and is not compatible with URP/HDRP/Mobiles/WebGL. It requires compute shaders support.

The water rendering employs a physical approximation for lighting and wave simulation, based on real-world parameters such as wind speed, turbidity, transparency, etc.

Therefore, water rendering should appear correct in any scene, whether it be during the day, at night, at sunset, or in a cave.

Features:

• GPU waves simulation with multiple cascades (to avoid tiling)
• Physical approximation of lighting (volumetric lights and shadows, absorption, sub-surface scattering, caustics, sunshafts, PBR shading and sun reflection)
• Physical approximation of reflections using reflection stack: fast screen-space projected reflections (several times faster than any other SSR methods) + camera planar reflections + skybox reflection
• Physical approximation of refraction in screen space with dispersion (using water IOR)
• Physical approximation of caustics relative to water waves (with dispersion).
• Underwater with partial submersion
• Underwater sunshafts/volumetric lighting with caustics
• Underwater half-line tension effect
• Underwater physical aproximation rendering (Snell's window effect and internal ssr reflection)
• Underwater bubbles and lit-particles (with feature that makes these particles tile infinitely across space using only few thousand particles)
• Decal system using shadergraph (include duckweed/blood effects)
• Trails using shadergraph and particle system (include foam trail effect)
• Instersection and open ocean foam
• Shoreline foam waves rendering with pre-baked particles simulation
• Flow rendering using flowmaps (integrated flowmap painter)
• Fluids simulation for static objects (rivers) with foam rendering
• River system using splines
• Buoyancy (and API)
• Dynamic ripples (using primitives or mesh renderer)
• Rain effect
• Various meshes: infinite mesh(ocean), finite box (pool), spline rivers, custom mesh
• Optimized multple water instances rendering
• Lod system with dynamic mesh quality and culling using QuadTree
• Tesselation
• Writing to depth buffer (for correct posteffects like 'depth of fields' or third-party fogs/plugins)
• Video/text description of each setting in the editor.
• Fog compatibility out of the box (in one click) with third-party assets for Enviro, Enviro3, Azure, Weather Maker, Atmospheric height fog, Volumetric fog and mist 2, COZY weather, Aura2.
• VR supported (PC target platform)

Support for mobile platforms is not planned in the near future due to technical limitations/bugs of compute shaders on mobile platforms.

Technical details

Require compute shaders