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<CameraMotionBlur>

available from v3.2.39

The <CameraMotionBlur> produces natural looking motion blur similar to what would be produced by a film camera.

For this technique to work, the children must be absolutely positioned so many layers can be created without influencing the layout.
You can use the <AbsoluteFill> component to absolutely position content.

note

The technique is destructive to colors. It is recommended to keep the samples property as low as possible and carefully inspect that the output is of acceptable quality.

API​

Wrap your content in <CameraMotionBlur> and optionally add the following props in addition.

shutterAngle​

optional - default: 180

Controls the amount of blur.

A lower value will result in less blur and a higher value will result in more.

The blur also depends on the frames per second (FPS). Higher FPS will naturally have less blur and lower FPS will have more blur.

In movies and TV common values are (FPS/shutter angle):

  • 24 fps / 180° or 90°
  • 25 fps / 180° or 90°
  • 30 fps / 180° or 90°
  • 50 fps / 180° or 90°
  • 60 fps / 180° or 90°
What is "shutter angle"?
Many analog film cameras use rotating discs with partial cut-outs to block or let light through to expose the analog film. Zero degrees is equal to completely blocking the light, and 360 degrees is the same as not blocking any light at all.

The most common values used in the film industry are 90 and 180 degrees. These values are the same as what you've experienced in most movies.

Read more here: Rotary disc shutter on Wikipedia

samples​

optional - default: 10

The final image is an average of the samples. For a value of 10 the component will render ten frames with different time offsets and combine them into a final image.

caution

A high number will produce a higher quality blur at the cost of image quality. See example below.

Recommended values: 5-10.

Example usage​

tsx
import { CameraMotionBlur } from "@remotion/motion-blur";
import { AbsoluteFill } from "remotion";
 
export const MyComposition = () => {
  return (
    <CameraMotionBlur shutterAngle={180} samples={10}>
      <AbsoluteFill
        style={{
          backgroundColor: "white",
          justifyContent: "center",
          alignItems: "center",
        }}
      >
        <RainbowSquare />
      </AbsoluteFill>
    </CameraMotionBlur>
  );
};
tsx
import { CameraMotionBlur } from "@remotion/motion-blur";
import { AbsoluteFill } from "remotion";
 
export const MyComposition = () => {
  return (
    <CameraMotionBlur shutterAngle={180} samples={10}>
      <AbsoluteFill
        style={{
          backgroundColor: "white",
          justifyContent: "center",
          alignItems: "center",
        }}
      >
        <RainbowSquare />
      </AbsoluteFill>
    </CameraMotionBlur>
  );
};

Demo​

Still

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Animation

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Credits​

The technique was developed by @marcusstenbeck and inspired by the <Trail> component developed by @UmungoBungo.

See also​