Motion Blur

The Motion Blur effect simulates the blur of an object based on its motion. When objects filmed by a camera are moving faster than the camera’s exposure time they appear as blurred on the edges. This can be caused by rapidly moving objects or a long exposure time. The effect itself is based on Motion Vectors buffer rendering which contains an objects pixels moving across the screen.

Properties

Property	Description
Enabled	If checked, the motion blur effect will be rendered.
Scale	The blur effect strength. A value of 0 disables it, while higher values increase the effect.
Sample Count	The amount of sample points used during motion blur rendering. It affects blur quality and performance.
Motion Vectors Resolution	The motion vectors texture resolution. Motion blur uses a per-pixel motion vector buffer that contains an objects movement information. Use a lower resolution to improve performance.

Motion Vector Debugging

The editor supports rendering motion vector visualizations by checking View -> Debug View -> Motion Vectors. You can use it to preview and debug the motion vectors of your game objects.

Per-Bone motion

Skeletal meshes support Per Bone Motion Blur that handles rendering the pixel motion for the animated model's bones transformation changes.