JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/pixi.js/4.4.3/pixi.min.js"></script>

JavaScript

function createShaderShadow() {
    const fragmentSrc = [
        "precision mediump float;",
        "uniform vec4 filterArea;",
        'varying vec2 vTextureCoord;',
        'uniform sampler2D uSampler;',
        "uniform mat3 mappedMatrix;",
        "void main() {",
        "vec3 map = vec3( vTextureCoord.xy,1)*mappedMatrix;",
        "vec2 start =map.xy;",
        "vec2 end = vec2(0.5, 0.5);",
        "float dist = distance(start, end);",
        "vec4 color = texture2D(uSampler, vTextureCoord);",
        "vec4 red = vec4(1.0, 0.0, 0.0, 0.0);",
        "vec4 yellow = vec4(1.0, 1.0, 0.0, 0.0);",
        "if(dist < 0.2) {",
        "   gl_FragColor = mix(color, yellow, 0.5);",
        "} else {",
        "   gl_FragColor = mix(color, red, 0.5);",
        "}",
        "}",
    ];

    const filter = new PIXI.Filter(null, fragmentSrc.join('\r\n'));
    filter.uniforms.mappedMatrix = new PIXI.Matrix();
    filter.apply = function(filterManager, input, output, clear) {
        this.uniforms.mappedMatrix = filterManager.calculateNormalizedScreenSpaceMatrix(
            this.uniforms.mappedMatrix);
        filterManager.applyFilter(this, input, output);
    };
    return filter;
};

function runMain() {
    const renderer = PIXI.autoDetectRenderer(1920, 1080);
    document.body.appendChild(renderer.view);

    const stage = new PIXI.Container();

    const sprite = PIXI.Sprite.fromImage(
        'http://pixijs.github.io/examples/required/assets/basics/bunny.png'
    );

    const filter = createShaderShadow(100, 100);
    sprite.filters = [filter];

    stage.addChild(sprite);
    sprite.scale.set(5.0);
    let time = 0;

    setInterval(() => {
        time++;
        sprite.position.x = 0 - Math.sin(time / 40.0) * 100;
    }, 20);

    function animate() {
        requestAnimationFrame(animate);
        renderer.render(stage);
    }
    animate();
};

runMain();