Motion blur can enhance the realism of a rendered animation by simulating the way a real-world camera works. A camera has a shutter speed, and if significant movement occurs during the time the shutter is open, the image on film is blurred.

Motion blur enhances the movement of the sword.

3ds Max provides a variety of ways to apply motion blur:

• Image Motion Blur applies motion blur to entire frames of an animation.
• Motion Blur Rendering Effect lets you apply image motion blur as a rendering effect.
• Multi-Pass Rendering Effect applies motion blur to frames by offsetting the camera in multiple rendering passes. You can preview multi-pass rendering effects in camera viewports.
• Particle Motion Blur uses a material map to blur moving particles in a particle system.
• Scene Motion Blur lets you apply motion blur as a Video Post effect.
• Object Motion Blur applies motion blur to specified moving objects in a scene. Object motion blur is best for making fast-moving objects appear to move more smoothly.