Photoscanned 2048x + Shader Support.zip is a release file of the Minecraft resource pack Photoscanned 3d textures, made for Minecraft 1.12.1, 1.12, 1.12.2, 1.12-Snapshot. It was published on July 19, 2018 and is 85.6 MB in size. For the full description, screenshots and every other version, visit the Photoscanned 3d textures resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.