Error when I try to swap texture froma script.js

[digityze2023]

Dears,
starting from https://modelviewer.dev/examples/scenegraph/index.html#swapTexturesExample when I put the script code insieme a script.js file the swap texture does not work.

When I use the code in the pase as it is there is no issue.

Have you an idea?

I like to have a clear html page and I don't want to put script explicit code inside it.

[digityze2023]

I suppose there is something not clear to me on the js coding..

`
const modelViewerPhoto = document.getElementById("model");

async function downloadPosterToBlob() {
const blob = await modelViewerPhoto.toBlob({ idealAspect: false });
const url = URL.createObjectURL(blob);
const a = document.createElement("b");
a.href = url;
a.download = "screenshot-model.png";
a.click();
URL.revokeObjectURL(url);
}

function esporta() {
const glTF = await modelViewerPhoto.exportScene();
const file = new File([glTF], "export.glb");
const link = document.createElement("a");
link.download =file.name;
link.href = URL.createObjectURL(file);
link.click();
}`

Why it is not working?

I think that when I will fix it I will fix the other swap texture issue

[elalish]

Hard to say without seeing the page, but I would bet it's an async issue. Make sure if you are trying to read or change the GLB in any way that it has actually loaded first: put all that code inside of a load event listener.