Noise visualization

Using the @remotion/noise package, you can add noise for your videos.

Noise Dot Grid Demo

This example shows how to create a floating dot grid "surface" using noise3D() function.

• 1st and 2nd dimensions used for space domain.
• 3rd dimension used for time domain.

speed

0.01

maxOffset

50

circleRadius

5

import { noise3D } from "@remotion/noise";
import React from "react";
import { interpolate, useCurrentFrame, useVideoConfig } from "remotion";

const OVERSCAN_MARGIN = 100;
const ROWS = 10;
const COLS = 15;

const NoiseComp: React.FC<{
  speed: number;
  circleRadius: number;
  maxOffset: number;
}> = ({ speed, circleRadius, maxOffset }) => {
  const frame = useCurrentFrame();
  const { height, width } = useVideoConfig();

  return (
    <svg width={width} height={height}>
      {new Array(COLS).fill(0).map((_, i) =>
        new Array(ROWS).fill(0).map((__, j) => {
          const x = i * ((width + OVERSCAN_MARGIN) / COLS);
          const y = j * ((height + OVERSCAN_MARGIN) / ROWS);
          const px = i / COLS;
          const py = j / ROWS;
          const dx = noise3D("x", px, py, frame * speed) * maxOffset;
          const dy = noise3D("y", px, py, frame * speed) * maxOffset;
          const opacity = interpolate(
            noise3D("opacity", i, j, frame * speed),
            [-1, 1],
            [0, 1]
          );

          const key = `${i}-${j}`;

          return (
            <circle
              key={key}
              cx={x + dx}
              cy={y + dy}
              r={circleRadius}
              fill="gray"
              opacity={opacity}
            />
          );
        })
      )}
    </svg>
  );
};

See also

• @remotion/noise