Argentum
Argentum is a client-side rendering optimization for Minecraft 1.8.9, built on the Celeritas rendering engine for Ornithe.
What it does
Argentum replaces parts of the 1.8.9 rendering pipeline with instanced and pre-baked draw paths. Terrain rendering is reworked on the Celeritas engine, entities such as players, mobs and animals are instanced, including their attachments like armor and arrows, and block entities are instanced where possible while a selected set is baked ahead of time. Item rendering and nametags are also optimized.
The mod needs Ornithe Standard Libraries to load. Pylon and legacy-lwjgl3 are optional. Argentum is published only for Ornithe on 1.8.9, with the latest file 1.0.1 dated 2026-10-09. Only the client needs it, and the source code and issue tracker are public, but the mod is not open source and is released under All rights reserved.
Key features
Terrain rendering
Chunk terrain is drawn through the Celeritas engine, which the author describes as optimized for this version.
Instanced entities
Players, mobs, animals and their attachments are drawn in batched instances rather than one call per model.
Block entity handling
Most block entities are instanced, and a selected group is baked ahead of rendering to reduce per-frame work.
Optimized nametags and items
Nametags and item rendering get their own optimized paths, covering the rest of the visible scene.
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 2
Required by 2 mods
Use cases
Heavy scenes on 1.8.9
Players with busy bases, crowds of mobs or many block entities on screen can use the mod to lower the rendering cost on a client.
Who it’s for: Players who run Minecraft 1.8.9 through Ornithe and want less rendering cost on their own client. Server owners do not need to install anything, because the mod runs on the client alone.
Questions
Does Argentum need to be installed on the server?
Which libraries must be installed with Argentum?
Does Argentum work on newer Minecraft versions?
In the catalog
Argentum is one of 3,545 Optimization mods on ModsFinder. 955 mods support Minecraft 1.8.9.
More from QuicksilverMC
Similar mods
What the author says
Argentum is a client performance mod for Ornithe 1.8.9, based on the Celeritas rendering engine. Users have reported 2-5x the framerates compared to vanilla or OptiFine.
Official listing
- Modrinth page
- modrinth.com/mod/argentum
- Owner
- QuicksilverMC
- Published
- 2026-08-24
- Updated on Modrinth
- 2026-10-09
- Facts verified
- 2026-10-15