glTF loading fails when compressed data is stored in external buffer

[Sean Lilley]

I'm getting an error when loading a glTF that has compressed data in an external buffer.

The EXT_meshopt_compression extension has a bufferView that extends beyond its buffer

This is because the external buffer hasn't been loaded yet when it tries to do the meshopt decode.

• TilesetContentManager::loadTileContent
  • GltfReader::readGltf
    • decodeMeshOpt --> buffer data is empty: ERROR
  • postProcessContentInWorkerThread --> loads external buffers

Is it possible to rearrange the loading process so that external buffers are loaded before decoding?

[Sean Lilley]

Duplicate of #629