For version 1.12.2, two reputable community packs dominate the space:
Minecraft 1.12.2 remains one of the most beloved versions of the game, especially for modded players. Whether you’re hunting for diamonds, scouting for spawners, or just trying to find that perfect cave system, sometimes you need a little help. x ray minecraft 1.12 2 texture pack
He looked closer at the texture pack’s settings. In his greed, he hadn't read the fine print. Crystal_Clear_V2 had a "render distance override." To save FPS, it despawned non-ore blocks within a certain radius if the player stood still too long. For version 1