OPAL Shaders

OPAL v0.3.0 Changelog:

Sun:
-increased sun brightness during the day
-increased sun visibility while the player is under water

Reflections:
-added "Reflections Intensity" option
-slightly decreased reflections intensity
-greatly decreased reflections intensity under water
-added "Sky Reflections Intensity" option
-slightly decreased sky reflections intensity
-added "Reduce Sky Reflections Below Sea Level" option
-reduced sky reflections below sea level (below Y62)
-nether portal is no longer reflective
-improved reflections on slime blocks and honey blocks

Translucents:
-added more options to change tinted shadows color intensity
-decreased transparency of nether portal, slime blocks and honey blocks
-added "Water Colored Shadows" option (credits to Capt Tatsu)
-water now casts colored shadows (credits to Capt Tatsu)
-added option to change water shadow color intensity
-improved ice visibility in cold biomes while the player is under water
-decreased the brightness of ice shadows

Water:
-added options to change underwater colors and fog density for every water type
-underwater colors now match water surface colors in every biome
-underwater fog density now changes depending on a biome
-improved underwater light shafts (credits to Capt Tatsu)
-underwater colors and fog now change during the rain (and other weather events)
-improved underwater color and fog transitions (between day and night),(between shallow and deep waters)
-improved underwater lighting in caves and other dark areas
-decreased underwater fog brightness in caves and other dark areas
-added "Underwater Alpha" option
-increased water alpha while the player is under water
-decreased water alpha while the player isn't under water
-added "Refraction" option (in the "Material" menu) (credits to Capt Tatsu)
-added refraction to the water surface (credits to Capt Tatsu)
-added "Water Caustics" and "Water Caustics Strength" options (credits to Capt Tatsu)
-water now cast caustics (credits to Capt Tatsu)
-disabled image sharpening while the player is under water
-increased chromatic aberration while the player is under water
-renamed "Default" Water Mode to "Realistic"

Fixes:
-fixed particles not being visible through translucent surfaces
-fixed flowing water "going up" due to wrong normals calculation (credits to Capt Tatsu)