IMBS
by InfProj
IMBS, the Infinite Motion Blur System, is a Fabric client mod that applies a temporal motion blur effect to the game view.
What it does
IMBS applies a post-process temporal blur to the rendered frame, with a strength that can be adjusted and a set of built-in presets to choose from. It is aimed at players who want smoother visuals on Fabric 1.21 without a heavy tuning process. Only the client needs it, so servers run without it and players join without installing anything. Files are published for Fabric and 1.21.11, with 1.0.0 as the latest build from 2026-03-01, and the code is not open source, under All rights reserved.
Key features
Temporal motion blur
A post-process pass blends recent frames so that moving scenes appear with a soft trail.
Adjustable strength
The amount of blur can be raised or lowered to suit the player's preference.
Built-in presets
Ready-made presets give a starting point before any manual tuning is done.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Several other Fabric motion blur mods target 1.21.11 as well. Blurring is client-side only, open source under the Apache License 2.0 and also built for 1.21.11.
Questions
Does IMBS need to be installed on the server?
In the catalog
IMBS is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
IMBS (Infinite’s Motion Blur System) is one of the first motion blur mods for Minecraft Fabric 1.21, focused on smooth visuals, easy tuning, and good performance. IMBS adds post-process temporal blur with adjustable strength and built-in presets, so yo
Official listing
- Modrinth page
- modrinth.com/mod/imbs
- Owner
- InfProj
- Published
- 2026-02-28
- Updated on Modrinth
- 2026-03-01
- Facts verified
- 2026-10-15