Playground fails for no reason

Questions
1

Hi everyone,

Sorry for bugging you with this but does the second playground fail for you as well?

Works: Babylon.js Playground
Crashes: https://playground.babylonjs.com/#DYZI0H#1

If it does crash for you too, does it complain about the missing uv declaration? If so, this does not make any sense. I am looking at the diff.

Screenshot 2026-01-25 225244
Screenshot 2026-01-25 2252441908×867 219 KB

The code parts highlighted in red are the differences… No way this error should occur.

Best wishes
Joe

Oh, I think I can reproduce:

  • go to the first playground
  • search: const mix1 = new BABYLON.Texture("textures/mixMap.png", scene); (L23)
  • replace:
    const mix1 = new BABYLON.Texture("textures/mixMap.png", scene);
    const mix2 = new BABYLON.Texture("textures/mixMap.png", scene);
    const mix3 = new BABYLON.Texture("textures/mixMap.png", scene);
    const mix4 = new BABYLON.Texture("textures/mixMap.png", scene);
    const mixes = [mix1,mix2,mix3,mix4];

This crashes the working one for me. From then on, the playground is broken, i.e. deleting the extra lines, does not fix it.

2

In the second PG, you assign mix to the albedoTexture property of the material, but mix is undefined. It means no uv shader variable is generated, hence the error. If you replace it with mix1, for example, it will work.

3

Please tar and feather me :face_with_crossed_out_eyes:

4 Likes
4

We all have our slow monday :smiley:

1 Like