Open Tech Art
A dark teal body of water with a bright sun reflection streaking across it and trees along the far shore.
Animated water-line demo from the repository; a still frame is shown.Image © End3r6 · creator-provided, used under MIT

An underwater effect framework for URP that started as a fog effect and grew into a shared stack.

Effects

  • Volumetric sun shafts
  • Caustics
  • Fog
  • Refraction and water-line refraction
  • Colour changes driven by the main light and ambient colour

Framework

Version 4.0 is a full Render Graph rewrite with shared resources and masks, downsampling, blue-noise sampling, bilateral blurs and an effect-ordering system, so you can add your own effects. Transparent objects such as glass domes can take part in the fog with a per-object thickness and opacity. A bubble particle prefab is included.