Example on how to keep names of the meshes

[tiivik]

Hi!

Multiple people including myself have previously mentioned that it would be great if gltfpack kept the names of the meshes intact. As mentioned previously by the author, for various reasons it's not possible and as node names can be preserved, it is still possible to rename the meshes.

Here's an example how to do that using https://github.com/donmccurdy/glTF-Transform, perhaps useful for someone else as well!

const { NodeIO } = require("@gltf-transform/core");

const io = new NodeIO();

const document = io.read("model.glb"); // read the GLB processed by gltfpack
const root = document.getRoot();

const anchorNames = [];

// Set mesh names based on node names
for (const node of root.listNodes()) {
  const children = node.listChildren();

  if (children[0]?.getMesh()) {
    children[0].getMesh().setName(node.getName());
    anchorNames.push(node.getName());
  }
}

// Remove the empty anchor objects
for (const node of root.listNodes()) {
  if (anchorNames.includes(node.getName())) {
    node.dispose();
  }
}

io.write("glb-transformed.glb", document);

Relevant discussions
#244
#284
#267
#201