Icarus Shaders -Updates for April 2025 (early access)

Developed for iris, tested in minecraft 1.20.1 (and 1.21.4) If you get bugs in other mc versions let me know!

Version Numbers: 

• version numbers are the date I made them, the newest is usually the best. (It's Year-month-day format)

• for example 'Icarus v 2025 -3-29' is the version of the shader I uploaded on March 29th 2025

Extra Attachments:

• Inside of the shader.zip file is a folder called 'Extras' which has Extra stuff in it that you can use for extra features, including config files and resource packs.

• These are also listed on the bottom of this post as Attachments.

• they are:

  • 'Icarus feature fixes v2' is a resource pack that fixes the color of the '3D grass shader', it might need to be loaded on top. Don't use it if not using the 3D Grass shader or grass dirt will look green.

  • 'icarus mob atlas' you can use this resource pack to override what mobs look like in reflections

  • 'icarus LUT-nuetral' you can edit this to make your own color grading. the supported format is 'hald 4096x4096', which substance designer also uses. (this video shows how to make your own LUT resource pack (use the timestamps). You can also find the LUT.png files or convert formats for free online)

Modpack / Test Environment: 

• this is my main test environment: https://modrinth.com/modpack/timetravelbeards-1.20.1-modpack

• I also test newer mc versions in the 'Fabulously Optimized' modpack

Versions Changelog:

2025-4-21c:

• resource pack sun & moon, & stars, should be covered by clouds better

• improvements to pegasus sky style

• minor fixes

2025-4-18:

• sky & clouds

  • sky defaulted back to using vanilla biome based colors instead of that new blue (you can revert menu for extra sky style 4 options) my display was busted and it looked better then, -sorry

  • added option to toggle using vanilla fog color in there

  • support for 'biome color' an iris uniform that gives fog color per biome without having the screenspace sunset (I was actually the one to request it a few months ago but never actually put it in)

  • added names & better descriptions to the sky & cloud styles

  • started porting the new skies from 'Pegasus' (they need to be more red at sunset, but otherwise are a good improvement that should still be very fast)

  • resource pack sun is now affected by sunset, optionally but defaulted On

• water

  • surface should look better, no more broken circle thing under you & better color

  • vanilla biome based water-fog colors used in all volumetric renderers below lv 5(immersive)

• little bugs & minor improvements

• working on:

  • buggy stuff like: noisy plants, some GI is off, shading behind glass/water

  • unfinished stuff like: physics sand & snow, porting pegasus sky & improving it, getting beach waves without physdics mod, -better GI is probably a next month thing as it requires a lot of technical rework

2025-4-11:

• 'Icarus' preset that turns pretty much everything on.

  • can look great, can look horrible, but can make some good screenshots & is great for debugging

• Slightly improved default sky

  • adjustable 'minimum haze' in sky style 4 options

• minor bugs & stuff,

  • i have been focusing on the other shaders this week to get perspective so i can fix the water & skies better

2025-4-5:

• Faster Reflections with textures from off-screen

  • 170% fps in my limited testing, this should affect High & up getting us closer to being back to the fps goals and where things were before

• Better Color Control (5 Parts)

  • Exposure

    • key components added to Tonemapping screen

  • Tonemapping

    • about 20 types added, 15 are popular ones that were public domain or MIT licensed, if you want any that i missed, tell me

  • Gamma Correction

    • adjustable control

  • LUTs

    • now work with everything else in here

  • Final Color Control

    • made to work with everything else in here

• Menu Clean up

• Optional Wet Screen effect from Rain

• bugs

2025-3-29:

• recursive reflections are now bug free!

• default sky color changed & completely adjustable, clouds look a lot better

• sunsets improved, no more quick swap

• darker nights by default

• waving plants improved

• LUTs added for custom color adjustments

  • they load in as resource packs

  • sample resource pack included in 'Extras' folder

• improved TA with less ghosting & less invalidation, there should be no more ghosting going around corners

• other bug fixes

• VIdeo Coming Soon to show these changes & how the Resource Packs work

Download LInks: