PhantomShapes
by SnailMan
PhantomShapes previews 3D shapes such as cubes, spheres, cylinders and toruses in the world before a player places them.
What it does
Shapes can be rotated in any direction, so a cylinder turned 90 degrees on the X axis can form a tunnel. Players move through the available shape options in a menu, and scrollable inputs set exact sizes and other properties. Holding Shift multiplies each adjustment step by a larger amount, from 10 up to 100.
Color, transparency and block choice of the preview can be adjusted in the options, which makes the outline easier to read against different builds. The mod runs on the Fabric loader and needs Fabric API, Fabric Language Kotlin and YetAnotherConfigLib (YACL). Mod Menu is optional and gives access to the mod settings. The mod is client-side only, and it is licensed under the GNU General Public License v3.0 only, open source, for game versions 1.20.3 – 1.21.4.
Key features
Shape previews
A preview of cubes, spheres, cylinders and toruses is drawn in the world so the result can be checked before placing blocks.
Precise property input
Scrollable fields set dimensions and other values, and holding Shift changes the value in larger steps.
Rotation
Shapes can be turned in any direction to produce angled walls, arches and tunnels.
Appearance options
Color, transparency and the block used for the preview can all be changed in the settings.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 3
Optional 1
Use cases
Building arches and tunnels
A rotated cylinder previewed with a chosen size lets a builder see the opening before any blocks are placed.
Who it’s for: Builders who plan geometric structures in survival or creative worlds, and players who want to check a shape before committing materials.
How it compares
Litematic Generator is a Fabric mod for 1.21 – 1.21.10 under the MIT License, and it is open source. Build Guide runs on Fabric, Forge and NeoForge for 1.16.4 – 26.3 under the CC-BY-NC-3.0 license, and it is not open source. Architects Measuring Tape covers Fabric and NeoForge for 1.21.1 – 1.21.11 and is not open source. Each of these is client-side only, like PhantomShapes.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| PhantomShapes | Fabric | 1.20.3 – 1.21.4 | Client-side only | 2024-12-28 |
| Litematic Generator | Fabric | 1.21 – 1.21.10 | Client-side only | 2025-10-16 |
| Build Guide | Fabric, Forge and NeoForge | 1.16.4 – 26.3 | Client-side only | 2026-10-03 |
| Architects Measuring Tape | Fabric and NeoForge | 1.21.1 – 1.21.11 | Client-side only | 2026-02-22 |
Questions
Does PhantomShapes need Fabric API?
Does the server need to install PhantomShapes?
Where are the mod settings found?
Which game versions have files?
In the catalog
PhantomShapes is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 17,979 mods support Minecraft 1.21.4.
More from SnailMan
Similar mods
What the author says
The Phantom Shapes Mod for Minecraft introduces a tool for previewing 3D shapes. With this mod, building 3D shapes becomes an ease, thanks to the inclusion of diverse shapes like cubes, spheres, cylinders, or toruses. Further development and version bumps currently halted due to my lack of free time and many backend…
Official listing
- Modrinth page
- modrinth.com/mod/phantomshapes
- Owner
- SnailMan
- Published
- 2024-02-04
- Updated on Modrinth
- 2024-12-28
- Facts verified
- 2026-10-15