Revisionfx Reelsmart Motion Blur Pro 621 Plug -

This controls how long the "virtual camera shutter" is open.

At its core, RSMB Pro is a GPU-accelerated optical flow analysis tool. Unlike traditional 3D renderers that generate motion blur natively, or simple directional blurs that guess movement, RSMB actually analyzes the pixel-by-pixel motion between video frames. It then synthesizes natural-looking motion blur onto footage that either has no blur (stop-motion, CGI passes, time-lapse) or adds more blur to existing footage to smooth out stuttering or slow-motion artifacts.

The "Pro" designation in the name signifies access to advanced vector-based tools, and "621" denotes version 6.2.1—the most stable and feature-rich release to date. This specific build focuses heavily on stability for M1/M2/M3 Macs, improved multi-frame rendering, and tighter integration with Adobe’s Suite and Foundry’s Nuke. revisionfx reelsmart motion blur pro 621 plug

If you are adding motion blur to shaky handheld footage, stabilize the clip first (using Warp Stabilizer or Lockdown), then apply RSMB Pro 621. The optical flow analysis is cleaner when the camera jitter is removed.

Download the installer specific to your operating system (Windows or macOS) from the official RE:Vision Effects website or your reseller. This controls how long the "virtual camera shutter" is open

You can now simulate a rolling shutter or a global shutter with variable skew. This is crucial for matching CGI elements to live-action plates. If your live-action footage has a 179-degree shutter but your 3D render has a perfect 180—RSMB 6.2.1 lets you adjust that 1-degree discrepancy that no one notices until they do.

Why pay for the "Pro" version? Because standard motion blur plug-ins break when you need them most. Here is what ReelSmart Motion Blur Pro 621 does that free alternatives cannot. Download the installer specific to your operating system

Select your CGI clip (rendered without motion blur). Go to Effect > RevisionFX > ReelSmart Motion Blur Pro.