.obj models not displaying materials

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

1.11.0

Web browser and version

130.0.6723.70

Operating system

mac os 14.7

Steps to reproduce this

Steps:

1. load .obj file as model
2. in draw() call normalMaterial() for example
3. call model(yourModel)

Snippet:

let teapot;

function preload() {
 teapot = loadModel("teapot.obj"); 
}

function setup() {
  createCanvas(400, 400, WEBGL);
}

function draw() {
  background(20);
  normalMaterial();
  scale(50);
  translate(0, 1.5, 0);
  rotateX(PI);
  model(teapot);
}

Reproduce the provided WebGL example using loadModel(), normalMaterial(), and model() with teapot.obj, then trace the WebGL model-loading and rendering entry points involved. Done means identifying why the .obj model's materials are not displayed and confirming the corrected behavior with the same example.