Sunken Atlantis Shaders

An underwater world shader: caustic light dances on every surface, plants and water sway with the current and bubbles rise through the water.

Why Sunken Atlantis?

• Caustics Everywhere: Dancing light nets on every sunlit surface, even on land. The sky is a rippling ocean surface with a circular light window.
• Current Sway: A slow, gentle wave across the whole image. Multiplied by Motion Sensitivity.
• Water Absorption: Like real water: red fades first with distance, then green.
• Rising Bubbles

Every effect above is a real setting in the shader menu (Signature Effects page), so you can tune it or turn it off. Underneath: real-time shadows, animated water, volumetric clouds, fog, bloom and colour grading.

Files

Six quality levels, each as its own zip, for Minecraft 1.13 and newer (Iris or OptiFine) and for 1.8.9–1.12.2 (OptiFine): Potato, Low, Medium, High, Extreme and Extreme Astor (the full look, as in the screenshots). Not sure? Start with Medium. Every zip also contains all levels as profiles in the shader menu, so you can switch in game.

Compatibility (what was actually checked)

• Checked in game: Minecraft 1.21.4 with Iris (Overworld, Nether and End screenshots on this page).
• All shader programs of both files pass a GLSL compile check.
• Other versions and OptiFine were not all tested in game; please report problems in the comments.
• Distant Horizons: not supported. Client-side only.

Installation

1. Install Iris (with Sodium) or OptiFine.
2. Put the zip into .minecraft/shaderpacks (do not unzip it).
3. Options → Video Settings → Shader Packs → select the pack.

License

All Rights Reserved, with permission to play with it, record videos and streams, and include it in modpacks (link back to this page). Re-uploading, copying the code into other packs or selling it is not allowed.