Solas Shader

Features added/changed:

+ Added low Earth orbit. Flying to Y=100000 (by default, controlled by the Karman Line slider) will slowly transform the atmosphere into a planet below the player
+ Added pixelated shadows option
+ Added Overworld atmosphere options. There will be more of them soon
+ Improved Ender Black Hole and Protoplanetary Disk
+ Improved subsurface scattering
+ Improved LPV fog and increased its contrast and intensity
+ Adjusted planar clouds lighting

Features fixed:

+ Fixed shader failing to compile when setting it to Low profile
+ Fixed gbuffers_hand error on OptiFine
+ Fixed exponential fog failing to reach far LODs with Voxy and Distant Horizons
+ Fixed realtime shadows not working on OptiFine
+ Fixed crepuscular rays being barely visible

Features added/changed:

+ Added full support for Voxy mod. In the next Solas update I'll probably add screen space shadows to Voxy and DH LODs.
+ Remade and greatly improved volumetric clouds for better, more realistic lighting and shapes. Many things are still subject to change, but I'm mostly happy with them.
+ Completely reworked the Aurora Borealis. It is now much more realistic, dynamic and beautiful. And it's just the beginning so stay tuned!
+ Added generated emission to handheld and dropped items
+ Added shooting stars based on @SpacEagle17's implementation
+ Improved planar clouds lighting and blending
+ Added support for Colorwheel mod
+ Added rotating noise to the accretion disk of the Ender Black hole
+ Added subtle warping to clouds closer to the Ender Black hole to make them look like they're being pulled in
+ Added options to toggle specular highlights and textured fire/lava.
+ Added new materials to integrated PBR

Features fixed:

+ Fixed some options missing their translations
+ Fixed multiple compilation errors
+ Fixed shader not working with Distant Horizons
+ Fixed nether portals turning green
+ Fixed Ender Nebula not changing at all when the player travels large distances
+ Fixed moon phases being mirrorred horizontally

Features added/changed:

+ Reworked dynamic clouds weather. It should be much smoother and even more random now
+ Improved Aurora Borealis
+ Added color settings for copper torches & lanterns
+ Tweaked the behaviour of volumetric light rays in closed spaces

Features fixed:

+ Fixed some compilation errors when toggling different options
+ Fixed Aurora not lighting up clouds in purple color
+ Fixed water with Distant Horizons
+ Fixed harsh transitions in dynamic cloud weather code
+ Fixed copper emitters not lighting up objects when they're held
+ Fixed volumetric clouds being nearly trasparent when it's raining
+ Fixed incorrect water fog lighting when holding an emissive item

Features removed:

+ Held emissive objects no longer affect water fog lighting. I'll probably rewrite this code in future releases to adress the issues it had

Features added/changed:

+ Added color settings for The End
+ Slightly tweaked the shape of The Nether Smoke
+ Made exponential Nether fog less saturated

Features fixed:

Fixed entity iPBR emission not working
Fixed ender protoplanetary disk flickering

Features added/changed:

+ Greatly improved water normals, light scattering and absorption
+ Reworked the lighting model on Ender Protoplanetary Disk (aka Ender Clouds). The lighting is now directional and depends on the black hole angle
+ Added options to change sun/moon and Ender Black Hole angles separately
+ Added colored lighting for newly introduced copper torches and lanterns
+ Adjusted light & shadow colors
+ Improved ground fog in jungle biomes
+ Added more blocks to iPBR specular mapping and emission

Features fixed:

+ Fixed some options missing translations
+ Fixed cloud shadows and crepuscular rays not working properly
+ Fixed Solas not compiling on OptiFine
+ Fixed some issues with Distant Horizons