How to Enable Motion Blur in Blender

Enabling native motion blur in Blender adds realistic streaking to fast-moving objects, matching the optical behavior of physical cameras. This guide details how to activate and configure render-time motion blur in both the Cycles and EEVEE engines, fine-tune shutter speed and position settings, and adjust object-level properties to capture high-velocity movement accurately.

1. Enable Global Motion Blur

Motion blur must first be turned on in the render settings of your project:

  1. Open the Render Properties tab (camera icon) in the Properties panel on the right.
  2. Ensure your render engine is set to either Cycles or EEVEE (or EEVEE Next).
  3. Scroll down and check the box next to Motion Blur.

2. Configure Motion Blur Settings

Expand the Motion Blur panel to adjust how the blur is calculated:

  • Shutter: Controls the length of time the simulated camera shutter remains open, measured in frames. The default value is 0.5 (a standard 180-degree shutter angle). Increase this value (e.g., 1.0 or higher) for a more pronounced blur on fast-moving objects, or lower it for a crisper look.
  • Position: Determines when the shutter opens relative to the current frame:
    • Start on Frame: Shutter opens at the current frame and stays open into the next frame.
    • Center on Frame: Shutter opens before the frame and closes after it (most common for natural results).
    • End on Frame: Shutter opens before the frame and closes directly on the current frame.
  • Rolling Shutter (Cycles only): Simulates the sensor readout of digital CMOS cameras, creating rolling shutter distortion for ultra-fast horizontal movement.

3. Improve Accuracy for Extremely Fast or Rotating Objects

Fast-spinning objects or complex animations (such as rigged character meshes) can produce rendering artifacts or straight-line blur where curved motion is expected.

To fix this:

  1. Select the fast-moving object in your 3D Viewport.
  2. Go to the Object Properties tab (orange square icon).
  3. Expand the Motion Blur section.
  4. Increase Motion Steps. Higher values (e.g., 4 or 8) force Blender to sample the object's transform at multiple sub-frame intervals, producing smooth, curved motion trails instead of linear approximations.
  5. If the object deforms (e.g., shape keys, armatures), ensure Deformation is checked under the Motion Blur settings.

4. Optimize and Preview

  • In EEVEE, ensure the viewport rendered shading mode is active to preview the blur in real time.
  • In Cycles, motion blur renders directly during the sampling phase of final renders (F12) or in rendered viewport mode.
  • To exclude specific static objects from motion blur calculations entirely to save render time, uncheck Motion Blur in that specific object's Object Properties panel.