This is a version of Cataclysmic Skies with a Higher Quality Rupture.

A custom sky resource pack designed to make the world feel more stylized and apocalyptic.

Features

• The Rupture: Black-hole-inspired celestial object that has its own orbit (it also rotates by 20° every night).
• Biome-dependent landscapes: Currently just plains, forest, desert and snowy (compatible with Biomes O' Plenty). These landscapes represent the current biome that you're in and give a sense of depth specially on lower render distances. The landscapes also adjust their lighting based on the sun's position.
• Custom sun and moon: Semi-realistic sun and moon that also render behind the landscapes.
• Nebula night sky: Subtle but beautiful night sky texture.
• Custom end sky (if Stellar Sky is installed): Inspired by the world gen bug that makes the end generate in rings across thousands of blocks. If you want the intended behavior of the End sky, replace your Stellar Sky CelestialSettings with my own here. 
• Nyx Compatibility: Blood moon, Harvest moon and Star showers.

Requires Optifine!

For optimal results, make sure to keep these settings:

- Quality:

         - Custom Sky: On

- Details:

         - Sky: Off

         - Stars: Off

         - Sun & Moon: On  

         - Fog: Off

- Performance:

         - Fast Render: Off 

         - Render Regions: Off

Note: If you want shader compatibility, use the "No Landscapes" version of the resource pack found in the additional files