[p5.js 2.0 Bug Report]: `p5.Camera.prototype.slerp` fails when using orthographic cameras

[nakednous]

Most appropriate sub-area of p5.js?

• Accessibility
• Color
• Core/Environment/Rendering
• Data
• DOM
• Events
• Image
• IO
• Math
• Typography
• Utilities
• WebGL
• Build process
• Unit testing
• Internationalization
• Friendly errors
• Other (specify if possible)

p5.js version

2.0.2

Web browser and version

Firefox 138.0.4

Operating system

Archlinux

Steps to reproduce this

The slerp() example on the beta docs works as expected when using perspective cameras.

When all cameras are set to ortho(), the same logic throws an error:

Uncaught (in promise) TypeError: setting getter-only property "mat4"
    slerp https://cdn.jsdelivr.net/npm/p5/lib/p5.min.js:1
    draw http://127.0.0.1:5500/slerp/sketch.js:18

Snippet:

'use strict';

let cam, cam0, cam1;

function setup() {
  createCanvas(100, 100, WEBGL);
  cam = createCamera(); cam.ortho();
  cam0 = createCamera(); cam0.ortho();
  cam1 = createCamera(); cam1.ortho();
  cam1.setPosition(400, -400, 800);
  cam1.lookAt(0, 0, 0);
  setCamera(cam);
}

function draw() {
  background(200);
  let amt = 0.5 * sin(frameCount * 0.01) + 0.5;
  cam.slerp(cam0, cam1, amt);  // 💥 Error here
  box();
}