Scaling asset up/down?

[bigrig2212]

Haven't seen an api for Scaling. Assuming there's no api for that?

[bigrig2212]

Oh, actually i see: https://github.com/donmccurdy/glTF-Transform/blob/main/packages/core/src/properties/node.ts
Hm, how to call that via the CLI and apply to the entire asset?

[donmccurdy]

Hi @bigrig2212! If you mean to rescale all or part of the scene (as opposed to textures) then no, the CLI does not provide commands for that. However, this can be done in a script. Related functions:

• Node#setScale
• transformMesh
• transformPrimitive

A basic example, scaling scenes up by 2x, would look something like this:

import { NodeIO } from '@gltf-transform/core';

const io = new NodeIO();
const document = await io.read('path/to/model.glb');

for (const scene of document.getRoot().listScenes()) {
  for (const node of scene.listChildren()) {
    const scale = node.getScale();
    scale[0] *= 2;
    scale[1] *= 2;
    scale[2] *= 2;
    node.setScale(scale);
  }
}

await io.write('path/to/model.glb', document);

[bigrig2212]

Ah k - thanks. Appreciate it. (have been doing batches from a shell script using the CLI... sounds like i'll need to write a different harness in node.)