Applying a background image to a rect()

Is it possible to have a background image for a rect() in p5? I’ve seem some answers that suggest a workaround by using a mask but all I’m looking for is having an image as a background for a shape such as a rect().

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but i understand that a pic drawn with image(img,x,y); actually is a rectangle,
but to have border stroke… you can draw it over a rectangle…
so it is not clear what additional functionality you need?

with not rect shapes as you say, more complicated.
so this might not help

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There are two ways:

let img;
function preload() {
  img = loadImage('loadImage_0.png');
function setup() {
  createCanvas(400,400, WEBGL);

  // method 1: draw an image + nofill rect
  // they must be the same size
  image(img, 0, 0);

  // method 2: use WEBGL, texture + rect
  // the rect may be any size, image will warp

Runnable example:

Because you said “a shape such as a rect” I suspect what you want is texture, which works on many shapes in the WEBGL renderer.