Shared Shader

import * as PIXI from 'pixi.js';

const app = new PIXI.Application({ resizeTo: window });

document.body.appendChild(app.view);

const geometry = new PIXI.Geometry()
    .addAttribute('aVertexPosition', // the attribute name
        [-100, -100, // x, y
            100, -100, // x, y
            100, 100]) // x, y

    .addAttribute('aUvs', // the attribute name
        [0, 0, // u, v
            1, 0, // u, v
            1, 1]); // u, v

const shader = PIXI.Shader.from(`

    precision mediump float;

    attribute vec2 aVertexPosition;
    attribute vec2 aUvs;

    uniform mat3 translationMatrix;
    uniform mat3 projectionMatrix;

    varying vec2 vUvs;

    void main() {

        vUvs = aUvs;
        gl_Position = vec4((projectionMatrix * translationMatrix * vec3(aVertexPosition, 1.0)).xy, 0.0, 1.0);

    }`,

`precision mediump float;

    varying vec2 vUvs;

    uniform sampler2D uSampler2;

    void main() {

        gl_FragColor = texture2D(uSampler2, vUvs);
    }

`,
{
    uSampler2: PIXI.Texture.from('https://pixijs.com/assets/bg_scene_rotate.jpg'),
});

const shader2 = PIXI.Shader.from(`

    precision mediump float;

    attribute vec2 aVertexPosition;
    attribute vec2 aUvs;

    uniform mat3 translationMatrix;
    uniform mat3 projectionMatrix;

    varying vec2 vUvs;

    void main() {

        vUvs = aUvs;
        gl_Position = vec4((projectionMatrix * translationMatrix * vec3(aVertexPosition, 1.0)).xy, 0.0, 1.0);

    }`,

`precision mediump float;

    varying vec2 vUvs;

    uniform sampler2D uSampler2;

    void main() {

        gl_FragColor = texture2D(uSampler2, vUvs);
        gl_FragColor.r += (abs(sin(gl_FragCoord.x * 0.06)) * 0.5) * 2.;
        gl_FragColor.g += (abs(cos(gl_FragCoord.y * 0.06)) * 0.5) * 2.;
    }

`,
{
    uSampler2: PIXI.Texture.from('https://pixijs.com/assets/bg_scene_rotate.jpg'),
});

const triangle = new PIXI.Mesh(geometry, shader);

const triangle2 = new PIXI.Mesh(geometry, shader2);

triangle.position.set(400, 300);
triangle.scale.set(2);

triangle2.position.set(500, 400);
triangle2.scale.set(3);

app.stage.addChild(triangle2, triangle);

app.ticker.add((delta) =>
{
    triangle.rotation += 0.01;
    triangle2.rotation -= 0.005;
});