Forgematica

Forgematica requires MaFgLib.

Litematica unofficial forge port. A modern client-side schematic mod for Minecraft.

Forgematica (or Litematica-Forge) is a client-side schematic mod for Minecraft, with also lots of extra functionality especially for creative mode (such as schematic pasting, area cloning, moving, filling, deletion).

Litematica (Original mod) was started as an alternative for Schematica, for players who don't want to have Forge installed on their client, and that's why it was developed for Liteloader.

If you have Optifine installed, then there are some options that you most likely will need to disable in Optifine, or otherwise it will break the schematic rendering:

• If you get glitchy weird triangles, then in 1.16+ first try updating to the latest Litematica version.
• If that doesn't work, then set shaders to OFF (not Internal) and restart the game.
• Render Regions probably needs to be disabled to prevent weird rendering issues (the schematic (partially?) rendering in weird places)
• Fast Render might also need to be disabled if there are still some weird HUD/GUI rendering issues