Look for dedicated utility and PvP fullbright downloads.
Are you playing ? Do you currently have OptiFine or Forge installed?
Click on "Open Resource Pack Folder." You'll need to move the downloaded Fullbright Texture Pack zip file into this folder. fullbright texture pack 1122 link
Launch Minecraft with Forge installed, go to Options > Resource Packs.
To download the actual resource pack files, rely on trusted community platforms to avoid malware: Look for dedicated utility and PvP fullbright downloads
Minecraft 1.12.2 remains a very popular version, especially for modded gameplay. Many stable, large-scale , making it a target for players seeking this specific functionality. So, if you see "1122," it's shorthand for version 1.12.2 .
Below is a on the subject.
Are you playing on a or a single-player world ? Are you currently using OptiFine or Forge ?
The Ultimate Guide to FullBright Texture Pack for Minecraft 1.12.2 Click on "Open Resource Pack Folder
Would you prefer the or the no-download file tweak method ? Share public link
Once OptiFine is active, enable your Fullbright texture pack as described above. The pack will then override the default lightmap and give you permanent full brightness.