Encoder missing

[ermoschink]

I'm trying to optimize the meshes.

                          await document.transform(
                              // Losslessly resample animation frames.
                             /* resample(),
                              // Remove unused nodes, textures, or other data.
                              prune(),
                              // Remove duplicate vertex or texture data, if any.
                              dedup(),
                              // Compress mesh geometry with Draco.
                              draco(),*/
                              meshopt({encoder: MeshoptEncoder, level: 'medium'}),
                              // Convert textures to WebP (Requires glTF Transform v3 and Node.js).

                              // Custom transform.
                          );

And I get a crash on the lines encoder.encodeGltfBuffer(.....) so the encoder is undefined.

      const srcArray = BufferUtils.concat(bufferViewData);
      const dstArray = encoder.encodeGltfBuffer(srcArray, count, byteStride, mode);

Please tell me what I missed?

[donmccurdy]

See https://gltf-transform.dev/modules/extensions/classes/EXTMeshoptCompression. I would check that:

1. MeshoptEncoder is imported as shown
2. MeshoptEncoder.ready is awaited
3. MeshoptEncoder is passed both to the meshopt() function, and to the I/O class dependencies

Aside – there is little point in applying both Draco and Meshopt, both cannot be applied to the same mesh. You probably will want to choose one of the two.

[ermoschink]

Thank you!
I don't intend to use both)