SharpQuill .NET library to read and write Quill files
2021-02-01
2 minutes read

I have open sourced and released SharpQuill. This is a .NET library for reading and writing Oculus Quill scenes.

It is under the Apache 2.0 license and has no external dependencies. Check it on github.

Features

  • .NET Standard 2.0+.
  • Reads, creates, modifies and saves Oculus Quill project files.
  • Exposes the scene hierarchy, transforms, drawings, paint strokes, vertices, animation (frame by frame and key framed animation).
  • Supported layer types: Group, Paint, Viewpoint, Camera. Not supported: Sound, Picture, Model.

Non features

  • It does not have any higher level functions to convert 3D assets, point clouds or other assets into Quill paint strokes. It is focused on providing a data model and read/write operations.
  • On import it does not perform tessellation of the paint strokes to 3D meshes.

Use cases

Some of these use cases assume additional application-level code. The library itself is focused on the lower level data model.

  • Exchange data with other VR painting programs or traditional programs.
  • Merge multiple Quill scenes by cherry picking layers from various sources.
  • Convert traditional assets into spatial drawings and open them in Quill.
  • Create procedural VR paintings and render them in Quill.

Limitations

  • The application state file (state.json) is currently not parsed and a default one is created on output.
  • Attachment layers of type Sound, Picture and Model are not currently supported.
  • The scene thumbnail is not supported.
  • The transform matrices from old projects (≤ Quill 1.3, circa 2017) are not supported. A work around is to open the file in a recent version of Quill and save it back.

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