This release adds several new weather-related effects, Iris support, new presets for content creators in the Content Creator Edition of this release, and a few miscellaneous post-processing effects.

New Features

• Iris Support: This shader is now usable in Iris.
• Content Creator Presets: The Content Creator Edition of this release and future releases will include custom presets titled "Streamer", aimed at content creators.
• State-of-the-Art Wavy Grass: Grass is now windy. Not wavy, windy: rather than moving randomly, you can see distinct gust of wind rolling across the terrain - wind also changes dynamically based on the weather, and different dimensions have their own wind patterns.
• Improved Rain: Rain is now much more customizable, can shift in intensity, and tilts in tandem with the wind (rather than in a singular direction, like most shaders).
• Clouds: Clouds now function in both Iris and Optifine, and have nice gradient shading in Iris.
• Better Skies: The overworld and end skies have had a brush-up, both look much better now.
• Lightning Flashes: Lightning now lights up the world. This effect can be scaled down or turned off if needed.
• Water fog now renders outside of water, giving it a nicer look
• Foggy Weather: This optional feature enables occasional foggy weather in your world.
• Clear Water: A new setting allows you to choose between "vanilla" and "clear" water
• Invisibility Distortion: When you're under the invisibility potion effect, this shader will let you know by distorting the edges of your screen. Instead of the standard "chromatic abberation" rainbow effect, however, this distortion affect looks more like printer misalignment.
• Object Outlines: This optional feature highlights the edges of terrain in your world. This effect looks similar to the one in Minecraft Dungeons but is a bit more distinct.
• Lava Variation: The color of lava is now slightly randomized and animated. Several other shaders already did this, most notably Complementary.
• Improved Lighting: Estimated bounce lighting is now incorporated into the light brightness calculations.
• Improved built-in LUT: The default color-correction no longer blows out darker objects and in general looks more appealing.
• White Balance: Control the white balance of the shader - you can now better control the mood you want (or make everything look way too orange, you're in control now.)
• Brighter Nether: If this shader's nether dimension is a bit too moody for your preference, you can turn this setting on to brighten it up.
• Slightly Improved Dithering: This probably won't be noticeable in-game, but dithering should better reflect the true color of an object.
• Custom boss battle colors are now off by default. They can still be enabled, but keep in mind they only work with Optifine due to some restrictions with Iris.

Experimental Features

• Forced Perspective: An effect usually used in 2D animation, this experimental setting adds customizable forced perspective into Minecraft.
• Fast GI: Fakes global illumination/raytracing with a bloom-like effect.

Bug Fixes

• Some transparent objects (such as nametags) no longer affect the lightmap, meaning they look much better.
• Added a "virtual horizon" below which celestial objects will not render. This fixes the "underground moon" effect that happens when the ground is not rendered (for instance in a void world or if the player flies up really high).
• Nighttime lighting now syncs to the phase of the moon.
• Nether fog no longer conflicts with lava fog: When under a lava ocean, the default nether distance fog used to tint the lava fog color. This is no longer the case.
• Fixed a MAJOR oopsie with the Hill ACES tonemapping algorithm - colors are now much more pleasing when using this tonemapper. The built-in colorgrading has been adjusted to reflect this fix.
• A slight issue with a blackbody color function has been fixed. All lighting settings measured in k/kelvin should produce more accurate colors.

Gallery

Wavy Grass

Clouds

Iris

Improved Rain

Rain

Thunder

Foggy Weather

No Fog

With Fog

Water

Clear

Vanilla

Invisibility Distortion

Invisible

Not Invisible

Lava Variation

Subtle

Off

Intense

Intense (Blocky)

Object Outlines

Enabled

Disabled

Improved Lighting

Before

After

Fast GI

Enabled

Disabled