Firmament

Richer colour, calmer light. Firmament no longer looks as if the brightness were turned all the way up: colours stay saturated, daylight has contrast, and nights, caves, the Nether and the End keep their mood.

New

• Morning mist: low fog in valleys and over water at sunrise (optional).
• New settings: Eye adaptation, Contrast, Vibrance, White balance, Vignette, Sharpening, Morning mist and Milky Way, in English and Russian.

Changed

• New tone curve: a hue-preserving filmic curve keeps mid-grey where it belongs. Sunlit sand and blossoms keep their colour instead of fading to white; only real highlights such as the sun roll off to white.
• Juicier colour, not neon: vibrance lifts sky, sand, blossoms and grass, while snow stays white and already vivid colours stay natural.
• Eye adaptation: centre-weighted metering, and dark scenes are no longer lifted to daylight brightness. Bloom only comes from truly bright light.
• Sky: a deep blue sky with a blue horizon, warm twilight bands, a sun halo, moon phases, twinkling stars and an optional Milky Way.
• Clouds: white sunlit tops over grey bases.
• Light: torches and lanterns fall off naturally from golden to amber, and lava stays orange.
• Nether and End: relit. The Nether is dark and deep instead of a glowing red wall; the End island has shape instead of a flat white surface.
• Rain falls as grey streaks.

Compatibility

• The same 29 Minecraft Java versions as 0.2.2: 1.18.2; 1.19, 1.19.1, 1.19.2 and 1.19.4; 1.20–1.20.6; 1.21–1.21.11; 26.1, 26.1.1, 26.1.2, 26.2 and 26.3. The new gallery was rendered in Minecraft 1.21.1 / NeoForge 21.1.228 / Iris 1.8.12 / Sodium 0.6.13 on the High preset.

Known issues

• After reloading chunks with F3+A, shadows of blocks outside your view appear once you look at them: Iris only builds chunks the camera sees.

Notes

• Use the Iris and Sodium builds matching your Minecraft version; 26.2 and 26.3 target the OpenGL renderer. Keep the ZIP intact, place it in shaderpacks, select Firmament in Iris, start with High and adjust the preset for your setup.
• From 0.3.0 Firmament is licensed under the MDFL 1.0; 0.1.0 to 0.2.2 stay MIT.