In Minecraft 1.8.8 , an X-Ray texture pack is a specialized resource pack that replaces the textures of common "filler" blocks like stone, dirt, and gravel with transparent images. This visual modification allows you to see directly through the ground to locate valuable ores, dungeons, and hidden structures without the need for extensive digging. How X-Ray Texture Packs Work
When these blocks are invisible, the valuable (Diamond, Iron, Gold, Redstone) remain solid, allowing you to see through the ground and tunnel directly to your target. Why Use X-Ray on Version 1.8.8? X Ray Minecraft 1.8 8 Texture Pack
The community quickly found a workaround using the new introduced in 1.8. Instead of relying on transparent textures—which the game now blocked—creators built custom 3D models for common blocks like stone and netherrack with literal holes cut out of them. In Minecraft 1