illusion
by linstarowo
Illusion lets a player replace the rendered model of a utility block with another look while keeping the block's original function, and it is available for Forge and NeoForge.
What it does
Illusion changes how a block entity is drawn without touching what it does. A player picks a model with the Show Block in the off-hand and applies it to a block with the Illusion Crystal, so a utility block can take on the shape of another block. The mod is aimed at decorative builds, where a functional block should look like a different material or object.
Every player and the server need a copy of the mod. It has to be installed on the 1.20.1 and 1.21.1 builds, with files for Forge and NeoForge; the latest Forge file is 1.1.0+mc1.20.1 and the latest NeoForge file is 1.1.1+mc1.21.1, which is marked beta. Embeddium and Sodium are required, and Yuushya Modelling is optional for custom models. The code is not open source; the author holds all rights, although public links to the source code exist.
Illusion is published under All rights reserved and was first released on 2026-01-10, with the last update on 2026-08-25. Indigo Renderer is compatible and can run safely alongside it when Synya Connector is installed.
Key features
Model replacement
A block entity can be given a rendering model that differs from its own shape while the original function stays in place.
Movement tool
Right-clicking air changes the movement axis, and right-clicking a transformed block moves its model along that axis; sneaking reverses the direction.
Block state tool
Right-clicking a transformed block cycles through its block states, so the model can match orientation, waterlogging and similar settings.
Show Block in the off-hand
Once a Show Block sits in the off-hand, the Illusion Crystal can be used to make a block entity take on that block's model.
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 1
Optional 1
How it compares
Yuushya Modelling is a Fabric, Forge and NeoForge mod under the MIT License, open source, for 1.16.5 – 1.21.1 and works with client and server; Illusion is not open source and covers only 1.20.1 and 1.21.1. 3D End Crystal is client-side only and adds models for Fabric and NeoForge across 1.21.1 – 26.3, so servers run without it. TexturesToMap is also client and server, with Fabric, Forge and NeoForge files for 1.20.1 – 1.21.11 under All rights reserved.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| illusion | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-08-25 |
| Yuushya Modelling | Fabric, Forge and NeoForge | 1.16.5 – 1.21.1 | Client and server | 2026-04-23 |
| 3D End Crystal | Fabric and NeoForge | 1.21.1 – 26.3 | Client-side only | 2026-10-12 |
| TexturesToMap | Fabric, Forge and NeoForge | 1.20.1 – 1.21.11 | Client and server | 2026-07-23 |
Questions
Does Illusion need Embeddium and Sodium?
Does the server need Illusion?
Which loader should be chosen for the 1.21.1 build?
In the catalog
illusion is one of 12,078 Decoration mods on ModsFinder, and one of 6,149 Decoration mods for Forge. 32,366 mods support Minecraft 1.21.1.
More from linstarowo
Similar mods
What the author says
The decoration mod provides a large number of blocks but they have no practical use. Various mods have utility blocks with differing textures, and players may want more tools for pranking... Illusion can help you solve these issues! This mod allows players to modify the rendering model of a Blockentity while…
Official listing
- Modrinth page
- modrinth.com/mod/illusion
- Owner
- linstarowo
- Published
- 2026-01-10
- Updated on Modrinth
- 2026-08-25
- Facts verified
- 2026-10-15