Potassium Mod

Reported by @deanxbox Black entities / item textures regarding recent update #9

Fixed

• Fixed a rare shader/modpack compatibility issue where players, mobs, item frames, held items, or maps could render black.
• Disabled unsafe entity packed-light caching to preserve vanilla and Iris entity lighting correctness.
• Improved compatibility with Iris, Complementary, Solas, and other shader packs.
• Added safer Iris shader-pack gating so Potassium avoids interfering with shader framebuffer, sampler, and program state.

Shader Cache

• Added a dedicated Potassium shader cache folder: .minecraft/potassium/shader-cache
• Stores bounded shader environment metadata for safer future shader warm-up and cache validation.
• Keeps Potassium cache data separate from Iris’ own shader cache to avoid shader-pack pipeline conflicts.
• Added automatic cache pruning so the folder does not grow indefinitely.