fism+1.21.1-neoforge-1.0.4.jar is a release file of the Minecraft mod Faster Iris Shadow Mapper for NeoForge, made for Minecraft 1.21, 1.21.1. It was published on June 15, 2026 and is 0 MB in size. For the full description, screenshots and every other version, visit the Faster Iris Shadow Mapper mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
