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

A WebGL-powered kinetic slider component using PIXI.js

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

function createAlphaFilter(config) {
  const shaderManager = ShaderResourceManager.getInstance();
  const shaderKey = `alpha-filter`;
  const filter = new AlphaFilter();
  try {
    shaderManager.registerFilter(filter, shaderKey);
  } catch (error) {
    console.warn("Error registering alpha filter with shader manager:", error);
  }
  const updateIntensity = (intensity) => {
    filter.alpha = Math.max(0, Math.min(1, intensity / 10));
  };
  updateIntensity(config.intensity);
  const reset = () => {
    filter.alpha = 1;
  };
  const dispose = () => {
    try {
      shaderManager.releaseFilter(filter, shaderKey);
    } catch (error) {
      console.warn("Error releasing alpha filter shader:", error);
    }
    filter.destroy();
  };
  return { filter, updateIntensity, reset, dispose };
}

export { createAlphaFilter };
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