ApertureMapsLib
by ArchangelD
ApertureMapsLib is a Forge library for Minecraft 1.12.2 that lets large rectangular textures render without cropping or seams.
What it does
Large rectangular textures, such as wallpapers, panels and tiles that span several blocks at once, can be used safely through the vanilla texture atlas. Without the library, an atlas can crop such textures, corrupt them or produce visual seams, and Connected Textures Mod patterns can behave incorrectly. The library addresses these cases by protecting the atlas from conflicts and disabling rotation and scaling transformations that cause the problems.
Modders who build their own non-standard textures or block mods with Connected Textures Mod support are the intended users. Integration needs no code: a small metadata file placed beside each texture is enough, and the fixes are then applied automatically to the textures that need them. The example in the author notes uses a 10×5 block pattern with Connected Textures Mod, and a 20×12 run is given as a case the library was built to solve.
The mod is released under the GNU General Public License v3.0 only and is open source, with its source code public. Files exist for Forge only, in one game version, 1.12.2, with 1.0.0 as the latest file, first published on 2026-03-23 and last updated on 2026-03-24. Because the environment is client required and server optional, players must install it, and a server may add it for the same effects.
Key features
Rectangular texture support
Non-square textures can be used across multiple blocks without errors in the vanilla atlas.
Atlas conflict protection
The library guards against cropping and atlas conflicts that would otherwise distort or corrupt textures.
Seam and artifact fixes
Visual seams and artifacts that appear between adjacent textures are corrected, including pattern rendering with Connected Textures Mod.
Automatic application
Once a texture has its metadata file, the fixes apply automatically, so no code changes are needed for integration.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Mod developers who create textures for Minecraft 1.12.2 Forge, especially large rectangular or Connected Textures Mod patterns, and resource pack creators working with the same texture format.
Questions
Does ApertureMapsLib need code to work with a texture?
Which Minecraft version does ApertureMapsLib support?
Does ApertureMapsLib need to be on the server?
In the catalog
ApertureMapsLib is one of 3,514 Library mods on ModsFinder, and one of 1,576 Library mods for Forge. 2,920 mods support Minecraft 1.12.2.
More from ArchangelD
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What the author says
ApertureMapsLib is a library for Minecraft Forge 1.12.2 that allows large rectangular textures to be used safely in the vanilla atlas. This library is designed specifically to solve those cases.
Official listing
- Modrinth page
- modrinth.com/mod/aperturemapslib
- Owner
- ArchangelD
- Published
- 2026-03-23
- Updated on Modrinth
- 2026-03-24
- Facts verified
- 2026-10-15
