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# disableMotionBlur

Disable the motion blur for all virtual content.

```
static let disableMotionBlur: ARView.RenderOptions
```

## Discussion

A video stream consists of a sequence of images. Each image in the
sequence represents a short, but non-zero period of time.
Fast-moving, real-world objects captured within a frame can
experience a visual smearing, known as *motion blur*.

By default, virtual objects that appear in the scene don’t
experience motion blur. Instead, they exist at exactly one point in
the frame for any given image in the image sequence. RealityKit
offers an effect that introduces motion blur for virtual objects,
taking into account the relative motion of the camera and the
object.

Because of its computational cost, motion blur is off by default on
all but the latest hardware. To enable or disable the effect, you
add or remove the
[`disableMotionBlur`](/documentation/RealityKit/ARView/RenderOptions-swift.struct/disableMotionBlur) option to or
from the [`renderOptions`](/documentation/RealityKit/ARView/renderOptions-swift.property) set, respectively.
If you do enable motion blur, be sure to measure your app’s CPU and
GPU utilization to find out how it affects your app’s performance,
as described in [Improving the Performance of a RealityKit App](/documentation/RealityKit/improving-the-performance-of-a-realitykit-app).

---

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