Smooth Motion Blur

Velocity-based motion blur that makes your gameplay look buttery smooth.

This mod recreates the way fast motion looks to the human eye: instead of uniformly blurring the whole screen, it reconstructs the direction of camera movement for every pixel and smears only along that path. Fast flicks produce clean directional streaks, the center of your view stays sharp, and the moment you stop moving the image is instantly crisp again — no smeary afterimages.

Perfect for PvP clips, montages and cinematic recordings.

It is recommended to start with a strength of 80.

Features

• Velocity-Based Blur — per-pixel reprojection using the depth buffer and previous-frame camera matrices
• Sharp where it matters — first-person hand, HUD, menus and screen center stay crisp
• Strength Command — /motionblur 0 to /motionblur 300
  • 0 — off
  • 1–100 — natural range (streaks match your real camera motion)
  • 101–300 — overdrive for extra-long cinematic streaks
  • Hotkeys — [ and ] fine-tune the strength in 5% steps (rebindable)
  • Adaptive Quality — sample count scales with streak length, so long streaks stay smooth without wasting FPS on small motions
  • Instant Response — no accumulation ghosting; blur reacts to every single frame
  • VulkanMod Compatible — built entirely on the vanilla GpuDevice render abstraction, no raw OpenGL calls
  • Client-side only — works on any server

Commands

Settings are saved to config/motionblur.json.

Compatibility

• Minecraft: 1.21.11 (Fabric)
• Requires: Fabric Loader ≥ 0.16, Fabric API
• Works with: VulkanMod, Sodium

Credits & License

The velocity-reprojection blur technique is adapted from Natural Motion Blur by ItsPasi — huge thanks for open-sourcing it! If you want more blur methods (frame blending, hybrid, accumulation) or OBS Spout output, check out the original mod.

This mod is licensed under LGPL-3.0-only. Source code: * github.com/realjahleel/smooth-motion-blur*