MapRend

What MapRend is

MapRend is a free Java tool that creates top-down map images from Minecraft worlds saved in MCAnvil format. Its maps can show daytime or nighttime views, biomes, terrain height, and height below oceans. Users supply a world folder and resource folder, and can optionally specify where the generated image should be saved. Options include choosing a map radius or producing a rectangular map. MapRend can work with resource packs and generate block colors from a pack. Rendering requires colors.json, which defines block colors and visibility, and biomes.json, which provides modifiers for leaves, grass, and other blocks. The project describes the program as customizable and documents both configuration files. It supports macOS and Windows and offline viewing, but not server maps or live map updates. The README gives Mac OS X terminal setup instructions using Git and Ant, and a graphical frontend is distributed as MapRend.app.zip. Windows users are directed to repository issue #1 for installation and usage guidance. The repository includes an Ant build file and notes code used for NBT and JSON file handling.