Hosting Open3D test data for development use.

• Small files (e.g. several MB)
  • Step 1: Push the file to the open3d_downloads repo.
  • Step 2: Get the direct download URL to the file. The URL typically looks like https://github.com/intel-isl/open3d_downloads/raw/master/path/to/file. You may get the URL by going to the file in the GitHub website, right click on the "Download" button and select "Copy link address".
  • Step 3: Back to the Open3D repo, edit Open3D/examples/test_data/download_file_list.json to specify the direct download URL and download path.
  • Step 4: Done! When you re-build the Open3D project, the new file will be downloaded to Open3D/examples/test_data/open3d_downloads. Now you can use this file in your source code including unit tests.
• Large files (max 2GB)
  • Step 1: Create a new release or re-use an existing release in the open3d_downloads repo.
  • Step 2: Upload your file as a release artifact. For files larger than 2GB, you may split the files into parts with tools like zip or tar. After uploading, you will able to get the direct download URL.
  • Step 3: These files will not be downloaded automatically. You need to add your own mechanisms to download and consume the files.

Files listed in Open3D/examples/test_data/download_file_list.json will be downloaded automatically in the following scenarios:

• when running CMake config steps
• when running Python unit tests
• when running Python examples/tutorials

Community developers can create pull requests to add new files to the open3d_downloads repo. Internal developers can directly push to the open3d_downloads repo's master branch and create/modify releases.