While Optifine is a popular performance mod that includes a built-in brightness toggle, many players prefer a "No Optifine" setup for several reasons:
Simplicity: Texture packs are "client-side only" and require no installation of executable files or complex mod loaders. fullbright texture pack 1.12.2 no optifine
Navigate to Options > Resource Packs > Open Resource Pack Folder. Drag and drop the downloaded ZIP file into that folder. While Optifine is a popular performance mod that