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    ./demo/canvas-001.js ./demo/canvas-002.js ./demo/canvas-003.js ./demo/canvas-004.js ./demo/canvas-005.js ./demo/canvas-006.js ./demo/canvas-007.js ./demo/canvas-008.js ./demo/canvas-009.js ./demo/canvas-010.js ./demo/canvas-011.js ./demo/canvas-012.js ./demo/canvas-013.js ./demo/canvas-014.js ./demo/canvas-015.js ./demo/canvas-015a.js ./demo/canvas-016.js ./demo/canvas-017.js ./demo/canvas-018.js ./demo/canvas-019.js ./demo/canvas-019a.js ./demo/canvas-020.js ./demo/canvas-021.js ./demo/canvas-022.js ./demo/canvas-023.js ./demo/canvas-024.js ./demo/canvas-025.js ./demo/canvas-026.js ./demo/canvas-027.js ./demo/canvas-028.js ./demo/canvas-029.js ./demo/canvas-030.js ./demo/canvas-031.js ./demo/canvas-032.js ./demo/canvas-033.js ./demo/canvas-034.js ./demo/canvas-035.js ./demo/canvas-036.js ./demo/canvas-037.js ./demo/canvas-038.js ./demo/canvas-039.js ./demo/canvas-040.js ./demo/canvas-041.js ./demo/canvas-042.js ./demo/canvas-043.js ./demo/canvas-044.js ./demo/canvas-045.js ./demo/canvas-046.js ./demo/canvas-047.js ./demo/canvas-048.js ./demo/canvas-049.js ./demo/canvas-050.js ./demo/canvas-051.js ./demo/canvas-052.js ./demo/canvas-053.js ./demo/canvas-054.js ./demo/canvas-055.js ./demo/canvas-056.js ./demo/canvas-057.js ./demo/canvas-058.js ./demo/canvas-059.js ./demo/canvas-060.js ./demo/canvas-061.js ./demo/canvas-062.js ./demo/canvas-063.js ./demo/canvas-064.js ./demo/core-001.js ./demo/delaunator-001.js ./demo/delaunator-002.js ./demo/dom-001.js ./demo/dom-002.js ./demo/dom-003.js ./demo/dom-004.js ./demo/dom-005.js ./demo/dom-006.js ./demo/dom-007.js ./demo/dom-008.js ./demo/dom-009.js ./demo/dom-010.js ./demo/dom-011.js ./demo/dom-012.js ./demo/dom-013.js ./demo/dom-015.js ./demo/dom-016.js ./demo/filters-001.js ./demo/filters-002.js ./demo/filters-002a.js ./demo/filters-003.js ./demo/filters-004.js ./demo/filters-005.js ./demo/filters-006.js ./demo/filters-007.js ./demo/filters-008.js ./demo/filters-009.js ./demo/filters-010.js ./demo/filters-011.js ./demo/filters-012.js ./demo/filters-013.js ./demo/filters-014.js ./demo/filters-015.js ./demo/filters-016.js ./demo/filters-017.js ./demo/filters-018.js ./demo/filters-019.js ./demo/filters-020.js ./demo/filters-021.js ./demo/filters-022.js ./demo/filters-023.js ./demo/filters-024.js ./demo/filters-025.js ./demo/filters-026.js ./demo/filters-027.js ./demo/filters-101.js ./demo/filters-102.js ./demo/filters-103.js ./demo/filters-104.js ./demo/filters-105.js ./demo/filters-501.js ./demo/filters-502.js ./demo/filters-503.js ./demo/filters-504.js ./demo/filters-505.js ./demo/mediapipe-001.js ./demo/mediapipe-002.js ./demo/mediapipe-003.js ./demo/modules-001.js ./demo/modules-002.js ./demo/modules-003.js ./demo/modules-004.js ./demo/modules-005.js ./demo/packets-001.js ./demo/packets-002.js ./demo/particles-001.js ./demo/particles-002.js ./demo/particles-003.js ./demo/particles-004.js ./demo/particles-005.js ./demo/particles-006.js ./demo/particles-007.js ./demo/particles-008.js ./demo/particles-009.js ./demo/particles-010.js ./demo/particles-011.js ./demo/particles-012.js ./demo/particles-013.js ./demo/particles-014.js ./demo/particles-015.js ./demo/particles-016.js ./demo/rapier-001.js ./demo/snippets-001.js ./demo/snippets-002.js ./demo/snippets-003.js ./demo/snippets-004.js ./demo/snippets-005.js ./demo/snippets-006.js ./demo/temp-000.js ./demo/temp-001.js ./demo/temp-001a.js ./demo/temp-002.js ./demo/temp-003.js ./demo/temp-004.js ./demo/temp-005.js ./demo/temp-006.js ./demo/temp-007.js ./demo/temp-008.js ./demo/temp-009.js ./demo/temp-010.js ./demo/temp-011.js ./demo/temp-012.js ./demo/temp-013.js ./demo/temp-014.js ./demo/temp-015.js ./demo/temp-016.js ./demo/temp-017.js ./demo/temp-018.js ./demo/temp-018a.js ./demo/temp-019.js ./demo/temp-020.js ./demo/temp-021.js ./demo/temp-022.js ./demo/temp-023.js ./demo/temp-024.js ./demo/temp-025.js ./demo/temp-026.js ./demo/temp-027.js ./demo/temp-028.js ./demo/temp-029.js ./demo/temp-030.js ./demo/temp-031.js ./demo/temp-032.js ./demo/temp-033.js ./demo/temp-034.js ./demo/temp-035.js ./demo/temp-036.js ./demo/temp-037.js ./demo/temp-100.js ./demo/temp-101.js ./demo/temp-102.js ./demo/temp-103.js ./demo/temp-104.js ./demo/temp-200.js ./demo/temp-201.js ./demo/temp-301.js ./demo/temp-inkscapeSvgFilters.js ./demo/temp-lottie.js ./demo/tensorflow-001.js ./demo/tensorflow-002.js ./demo/utilities.js
  • §

    Demo Filters 025

    Filter parameters: Glitch filter

  • §

    Run code

    import * as scrawl from '../source/scrawl.js';
    
    import { reportSpeed, addImageDragAndDrop } from './utilities.js';
  • §

    Scene setup

    const canvas = scrawl.library.canvas.mycanvas;
    
    scrawl.importDomImage('.flowers');
    
    const glitch = scrawl.makeFilter({
    
        name: 'glitch',
        method: 'glitch',
        level: 0.2,
        offsetMin: -10,
        offsetMax: 10,
    });
  • §

    Create the target entity

    const piccy = scrawl.makePicture({
    
        asset: 'iris',
    
        width: '100%',
        height: '100%',
    
        copyWidth: '100%',
        copyHeight: '100%',
    
        method: 'fill',
    
        filters: ['glitch'],
    });
  • §

    Scene animation

    Function to display frames-per-second data, and other information relevant to the demo

    const report = reportSpeed('#reportmessage', function () {
  • §

    @ts-expect-error

        return `    Level: ${level.value}\n    Mixed offset - min: ${offsetMin.value}; max ${offsetMax.value}\n    Red offset - min: ${offsetRedMin.value}; max ${offsetRedMax.value}\n    Green offset - min: ${offsetGreenMin.value}; max ${offsetGreenMax.value}\n    Blue offset - min: ${offsetBlueMin.value}; max ${offsetBlueMax.value}\n    Opacity: ${opacity.value}`;
    });
  • §

    Create the Display cycle animation

    const demoAnimation = scrawl.makeRender({
    
        name: "demo-animation",
        target: canvas,
        afterShow: report,
    });
  • §

    User interaction

    Setup form observer functionality

    scrawl.observeAndUpdate({
    
        event: ['input', 'change'],
        origin: '.controlItem',
    
        target: glitch,
    
        useNativeListener: true,
        preventDefault: true,
    
        updates: {
    
            opacity: ['opacity', 'float'],
            level: ['level', 'float'],
            step: ['step', 'round'],
            offsetMin: ['offsetMin', 'round'],
            offsetMax: ['offsetMax', 'round'],
            offsetRedMin: ['offsetRedMin', 'round'],
            offsetRedMax: ['offsetRedMax', 'round'],
            offsetGreenMin: ['offsetGreenMin', 'round'],
            offsetGreenMax: ['offsetGreenMax', 'round'],
            offsetBlueMin: ['offsetBlueMin', 'round'],
            offsetBlueMax: ['offsetBlueMax', 'round'],
            useMixedChannel: ['useMixedChannel', 'boolean'],
            transparentEdges: ['transparentEdges', 'boolean'],
        },
    });
  • §

    Setup form

    const level = document.querySelector('#level');
    const step = document.querySelector('#step');
    const useMixedChannel = document.querySelector('#useMixedChannel');
    const transparentEdges = document.querySelector('#transparentEdges');
    const offsetMin = document.querySelector('#offsetMin');
    const offsetMax = document.querySelector('#offsetMax');
    const offsetRedMin = document.querySelector('#offsetRedMin');
    const offsetRedMax = document.querySelector('#offsetRedMax');
    const offsetGreenMin = document.querySelector('#offsetGreenMin');
    const offsetGreenMax = document.querySelector('#offsetGreenMax');
    const offsetBlueMin = document.querySelector('#offsetBlueMin');
    const offsetBlueMax = document.querySelector('#offsetBlueMax');
    const opacity = document.querySelector('#opacity');
  • §

    @ts-expect-error

    level.value = 0.2;
  • §

    @ts-expect-error

    step.value = 1;
  • §

    @ts-expect-error

    useMixedChannel.options.selectedIndex = 1;
  • §

    @ts-expect-error

    transparentEdges.options.selectedIndex = 0;
  • §

    @ts-expect-error

    offsetMin.value = -10;
  • §

    @ts-expect-error

    offsetMax.value = 10;
  • §

    @ts-expect-error

    offsetRedMin.value = 0;
  • §

    @ts-expect-error

    offsetRedMax.value = 0;
  • §

    @ts-expect-error

    offsetGreenMin.value = 0;
  • §

    @ts-expect-error

    offsetGreenMax.value = 0;
  • §

    @ts-expect-error

    offsetBlueMin.value = 0;
  • §

    @ts-expect-error

    offsetBlueMax.value = 0;
  • §

    @ts-expect-error

    opacity.value = 1;
  • §

    Drag-and-Drop image loading functionality

    addImageDragAndDrop(canvas, '#my-image-store', piccy);
  • §

    Development and testing

    console.log(scrawl.library);