Shader test map.zip is a release file of the Minecraft map Shader map, made for Minecraft 1.16.3, 1.16.1, 1.14.4, 1.14.1, 1.14.3, 1.15, 1.16, 1.15.2, 1.14, 1.14.2, 1.16.2, 1.12.2 and more. It was published on October 14, 2020 and is 3 MB in size. For the full description, screenshots and every other version, visit the Shader map map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.