For Minecraft version 1.12.2, Xray Ultimate remains the most popular and highly recommended resource pack. It is designed to work as a standalone resource pack without requiring any external mods, though it is often paired with Optifine for better visibility.  Top X-Ray Packs for 1.12.2 

How to avoid detection:

X-Ray Glow | Spectator Toggleable: A unique utility pack that allows players to toggle the X-ray effect by switching into Spectator Mode. This is particularly useful for server administrators or creative builders who want to switch views quickly without digging through menus.

: This is the most popular choice for Java Edition. It highlights all ores (diamond, gold, iron, etc.) while making common blocks like stone and dirt transparent. Proper X-Ray

Ready to mine? Download the pack that fits your playstyle, install OptiFine 1.12.2, and turn your pickaxe into a laser-guided mining machine. Happy (cheating) hunting!

Pro Tip: Hold the F3 + T keys to reload textures without restarting the game. This lets you toggle between your X-Ray pack and your normal pack quickly.

"X-ray texture packs" for games like Minecraft are designed to give players an unfair advantage by revealing ores, caves, and hidden structures through transparent textures. Many game servers explicitly ban them as cheating tools.