kinetic-slider/dist/esm/filters/noiseFilter.js

A WebGL-powered kinetic slider component using PIXI.js

import { NoiseFilter } from 'pixi.js';
import { ShaderResourceManager } from '../managers/ShaderResourceManager.js';

function createNoiseFilter(config) {
  const shaderManager = ShaderResourceManager.getInstance();
  const options = {
    noise: config.noiseLevel || 0.5,
    // Default noise level is 0.5
    seed: config.seed || Math.random()
    // Default seed is a random value
  };
  const shaderKey = "noise-filter";
  const filter = new NoiseFilter(options);
  try {
    shaderManager.registerFilter(filter, shaderKey);
  } catch (error) {
    console.warn("Error registering noise filter with shader manager:", error);
  }
  const updateIntensity = (intensity) => {
    filter.noise = Math.max(0, Math.min(10, intensity)) / 10;
    if (config.generateNewSeedOnUpdate) {
      filter.seed = Math.random();
    }
  };
  updateIntensity(config.intensity);
  const reset = () => {
    if (config.noiseLevel !== void 0) {
      filter.noise = config.noiseLevel;
    } else if (config.intensity !== void 0) ; else {
      filter.noise = 0;
    }
    if (config.seed !== void 0) {
      filter.seed = config.seed;
    } else if (config.generateNewSeedOnUpdate === true) {
      filter.seed = Math.random();
    } else {
      filter.seed = filter.seed || 0;
    }
    if (config.intensity !== void 0) {
      updateIntensity(config.intensity);
    }
  };
  const dispose = () => {
    try {
      shaderManager.releaseFilter(filter, shaderKey);
    } catch (error) {
      console.warn("Error releasing noise filter shader:", error);
    }
    filter.destroy();
  };
  return { filter, updateIntensity, reset, dispose };
}

export { createNoiseFilter };
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