Iris Caves

1.1.1 — Minecraft 1.20.1 / Forge

Big update for shader pack support, plus a proper config.

Photon is now fully supported. It's the second pack after Complementary to get the complete feature set — biome fog, cave lighting tint, the Candy/Primordial sunlit look, Forlorn Hollows darkness, Deepsight, the Luxtructosaurus sky, and the new Abyssal Chasm sky cutoff. It also gets its own Alex's Caves settings screen in Photon's options menu, with English and Russian labels and real sliders.

New: Abyssal Chasm sky cutoff. In Abyssal Chasm the sky, sun, moon, clouds and sun rays are hidden, so the biome finally reads like the crushing deep instead of a cave with a sunny ceiling hole. It deliberately does not touch world lighting — the biome keeps its own illumination rather than going pitch black. On by default, toggleable. Complementary and Photon.

Fixed on Photon: the black void patches. Standing in a big open cave you'd see ugly black areas where unloaded chunks showed through, because Photon fades its border fog to black underground and skips cave fog on sky pixels entirely. Both are now filled with the biome's cave fog, the way Complementary already did it.

New pack: Super Duper Vanilla — biome cave-fog tint + the boss sky recolor.

New config file (config/iriscaves-client.toml):

• autoPatch — master switch. Set it to false and the mod won't scan your shaderpacks folder or generate anything at all.
• patchBlacklist — a list of pack names to never touch. Case-insensitive and matched by substring, so "photon" covers photon_v1.3b. There's a commented example in the file showing the format.

Also:

• MakeUp-UltraFast was investigated and is intentionally not supported — it inlines a heavily simplified fog across many files with no single cave-fog color to hook. Rather than half-break it, the mod leaves it alone.
• Every patch is still idempotent and anchor-based: if a pack update moves an anchor, that one edit is skipped with a warning instead of corrupting the file.

Full support matrix: Complementary (Reimagined & Unbound, ± Euphoria Patches) and Photon get everything; BSL, Bliss, Solas and Super Duper Vanilla get the portable subset (biome fog tint + boss atmosphere).