#15962 closed defect (limitation)

GLTF: KeyError: 'bufferView'

Reported by: chimerax-bug-report@… Owned by: Tom Goddard
Priority: normal Milestone:
Component: Input/Output Version:
Keywords: Cc:
Blocked By: Blocking:
Notify when closed: Platform: all
Project: ChimeraX

Description

The following bug report has been submitted:
Platform:        macOS-14.2.1-x86_64-i386-64bit
ChimeraX Version: 1.8 (2024-06-10 23:15:52 UTC)
Description
(Describe the actions that caused this problem to occur here)

Log:
Startup Messages  
---  
note | available bundle cache has not been initialized yet  
  
UCSF ChimeraX version: 1.8 (2024-06-10)  
© 2016-2024 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open /Users/sahamiasad/Desktop/fanzorViewer3.glb

Failed opening file /Users/sahamiasad/Desktop/fanzorViewer3.glb:  
'bufferView'  

> open "/Users/sahamiasad/Downloads/Fanzor Test.pdb" format pdb

Chain information for Fanzor Test.pdb #1  
---  
Chain | Description  
P | No description available  
  

> open /Users/sahamiasad/Desktop/fanzorViewer3.glb

Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/open_command/dialog.py", line 334, in _qt_safe  
run(session, "open " + " ".join([FileNameArg.unparse(p) for p in paths]) + (""  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/commands/run.py", line 49, in run  
results = command.run(text, log=log, return_json=return_json)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/commands/cli.py", line 3213, in run  
result = ci.function(session, **kw_args)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/open_command/cmd.py", line 131, in cmd_open  
models = Command(session, registry=registry).run(provider_cmd_text,
log=log)[0]  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/commands/cli.py", line 3213, in run  
result = ci.function(session, **kw_args)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/open_command/cmd.py", line 213, in provider_open  
models, status = collated_open(session, None, [data], data_format,
_add_models,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/open_command/cmd.py", line 513, in collated_open  
return remember_data_format()  
^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/open_command/cmd.py", line 484, in remember_data_format  
models, status = func(*func_args, **func_kw)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/gltf/__init__.py", line 46, in open  
return gltf.read_gltf(session, data, file_name)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/gltf/gltf.py", line 91, in read_gltf  
ba = buffer_arrays(j['accessors'], bv, bin_chunk)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/gltf/gltf.py", line 302, in buffer_arrays  
ibv = a['bufferView'] # index into buffer_views  
~^^^^^^^^^^^^^^  
KeyError: 'bufferView'  
  
KeyError: 'bufferView'  
  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/gltf/gltf.py", line 302, in buffer_arrays  
ibv = a['bufferView'] # index into buffer_views  
~^^^^^^^^^^^^^^  
  
See log for complete Python traceback.  
  

> open /Users/sahamiasad/Desktop/fanzorViewer3.glb

Failed opening file /Users/sahamiasad/Desktop/fanzorViewer3.glb:  
'bufferView'  

> open /Users/sahamiasad/Desktop/fanzorViewer3.glb

Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/open_command/dialog.py", line 334, in _qt_safe  
run(session, "open " + " ".join([FileNameArg.unparse(p) for p in paths]) + (""  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/commands/run.py", line 49, in run  
results = command.run(text, log=log, return_json=return_json)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/commands/cli.py", line 3213, in run  
result = ci.function(session, **kw_args)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/open_command/cmd.py", line 131, in cmd_open  
models = Command(session, registry=registry).run(provider_cmd_text,
log=log)[0]  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/core/commands/cli.py", line 3213, in run  
result = ci.function(session, **kw_args)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/open_command/cmd.py", line 213, in provider_open  
models, status = collated_open(session, None, [data], data_format,
_add_models,  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/open_command/cmd.py", line 513, in collated_open  
return remember_data_format()  
^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/open_command/cmd.py", line 484, in remember_data_format  
models, status = func(*func_args, **func_kw)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/gltf/__init__.py", line 46, in open  
return gltf.read_gltf(session, data, file_name)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/gltf/gltf.py", line 91, in read_gltf  
ba = buffer_arrays(j['accessors'], bv, bin_chunk)  
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/gltf/gltf.py", line 302, in buffer_arrays  
ibv = a['bufferView'] # index into buffer_views  
~^^^^^^^^^^^^^^  
KeyError: 'bufferView'  
  
KeyError: 'bufferView'  
  
File
"/Applications/ChimeraX-1.8.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/gltf/gltf.py", line 302, in buffer_arrays  
ibv = a['bufferView'] # index into buffer_views  
~^^^^^^^^^^^^^^  
  
See log for complete Python traceback.  
  




OpenGL version: 4.1 INTEL-22.1.29
OpenGL renderer: Intel(R) Iris(TM) Plus Graphics OpenGL Engine
OpenGL vendor: Intel Inc.

Python: 3.11.4
Locale: UTF-8
Qt version: PyQt6 6.6.1, Qt 6.6.1
Qt runtime version: 6.6.3
Qt platform: cocoa
Hardware:

    Hardware Overview:

      Model Name: MacBook Air
      Model Identifier: MacBookAir9,1
      Processor Name: Quad-Core Intel Core i5
      Processor Speed: 1.1 GHz
      Number of Processors: 1
      Total Number of Cores: 4
      L2 Cache (per Core): 512 KB
      L3 Cache: 6 MB
      Hyper-Threading Technology: Enabled
      Memory: 8 GB
      System Firmware Version: 2020.61.1.0.0 (iBridge: 21.16.2057.0.0,0)
      OS Loader Version: 580~1053

Software:

    System Software Overview:

      System Version: macOS 14.2.1 (23C71)
      Kernel Version: Darwin 23.2.0
      Time since boot: 7 days, 1 hour, 1 minute

Graphics/Displays:

    Intel Iris Plus Graphics:

      Chipset Model: Intel Iris Plus Graphics
      Type: GPU
      Bus: Built-In
      VRAM (Dynamic, Max): 1536 MB
      Vendor: Intel
      Device ID: 0x8a51
      Revision ID: 0x0007
      Metal Support: Metal 3
      Displays:
        Color LCD:
          Display Type: Built-In Retina LCD
          Resolution: 2560 x 1600 Retina
          Framebuffer Depth: 30-Bit Color (ARGB2101010)
          Main Display: Yes
          Mirror: Off
          Online: Yes
          Automatically Adjust Brightness: Yes
          Connection Type: Internal


Installed Packages:
    alabaster: 0.7.16
    appdirs: 1.4.4
    appnope: 0.1.4
    asttokens: 2.4.1
    Babel: 2.15.0
    beautifulsoup4: 4.12.3
    blockdiag: 3.0.0
    blosc2: 2.0.0
    build: 1.2.1
    certifi: 2023.11.17
    cftime: 1.6.4
    charset-normalizer: 3.3.2
    ChimeraX-AddCharge: 1.5.17
    ChimeraX-AddH: 2.2.6
    ChimeraX-AlignmentAlgorithms: 2.0.2
    ChimeraX-AlignmentHdrs: 3.5
    ChimeraX-AlignmentMatrices: 2.1
    ChimeraX-Alignments: 2.12.7
    ChimeraX-AlphaFold: 1.0
    ChimeraX-AltlocExplorer: 1.1.1
    ChimeraX-AmberInfo: 1.0
    ChimeraX-Arrays: 1.1
    ChimeraX-Atomic: 1.57.1
    ChimeraX-AtomicLibrary: 14.0.6
    ChimeraX-AtomSearch: 2.0.1
    ChimeraX-AxesPlanes: 2.4
    ChimeraX-BasicActions: 1.1.2
    ChimeraX-BILD: 1.0
    ChimeraX-BlastProtein: 2.4.6
    ChimeraX-BondRot: 2.0.4
    ChimeraX-BugReporter: 1.0.1
    ChimeraX-BuildStructure: 2.12.1
    ChimeraX-Bumps: 1.0
    ChimeraX-BundleBuilder: 1.2.7
    ChimeraX-ButtonPanel: 1.0.1
    ChimeraX-CageBuilder: 1.0.1
    ChimeraX-CellPack: 1.0
    ChimeraX-Centroids: 1.4
    ChimeraX-ChangeChains: 1.1
    ChimeraX-CheckWaters: 1.4
    ChimeraX-ChemGroup: 2.0.1
    ChimeraX-Clashes: 2.2.4
    ChimeraX-ColorActions: 1.0.5
    ChimeraX-ColorGlobe: 1.0
    ChimeraX-ColorKey: 1.5.6
    ChimeraX-CommandLine: 1.2.5
    ChimeraX-ConnectStructure: 2.0.1
    ChimeraX-Contacts: 1.0.1
    ChimeraX-Core: 1.8
    ChimeraX-CoreFormats: 1.2
    ChimeraX-coulombic: 1.4.3
    ChimeraX-Crosslinks: 1.0
    ChimeraX-Crystal: 1.0
    ChimeraX-CrystalContacts: 1.0.1
    ChimeraX-DataFormats: 1.2.3
    ChimeraX-Dicom: 1.2.4
    ChimeraX-DiffPlot: 1.0
    ChimeraX-DistMonitor: 1.4.2
    ChimeraX-DockPrep: 1.1.3
    ChimeraX-Dssp: 2.0
    ChimeraX-EMDB-SFF: 1.0
    ChimeraX-ESMFold: 1.0
    ChimeraX-FileHistory: 1.0.1
    ChimeraX-FunctionKey: 1.0.1
    ChimeraX-Geometry: 1.3
    ChimeraX-gltf: 1.0
    ChimeraX-Graphics: 1.1.1
    ChimeraX-Hbonds: 2.4
    ChimeraX-Help: 1.2.2
    ChimeraX-HKCage: 1.3
    ChimeraX-IHM: 1.1
    ChimeraX-ImageFormats: 1.2
    ChimeraX-IMOD: 1.0
    ChimeraX-IO: 1.0.1
    ChimeraX-ItemsInspection: 1.0.1
    ChimeraX-IUPAC: 1.0
    ChimeraX-Label: 1.1.10
    ChimeraX-ListInfo: 1.2.2
    ChimeraX-Log: 1.1.6
    ChimeraX-LookingGlass: 1.1
    ChimeraX-Maestro: 1.9.1
    ChimeraX-Map: 1.2
    ChimeraX-MapData: 2.0
    ChimeraX-MapEraser: 1.0.1
    ChimeraX-MapFilter: 2.0.1
    ChimeraX-MapFit: 2.0
    ChimeraX-MapSeries: 2.1.1
    ChimeraX-Markers: 1.0.1
    ChimeraX-Mask: 1.0.2
    ChimeraX-MatchMaker: 2.1.3
    ChimeraX-MCopy: 1.0
    ChimeraX-MDcrds: 2.7.1
    ChimeraX-MedicalToolbar: 1.0.3
    ChimeraX-Meeting: 1.0.1
    ChimeraX-MLP: 1.1.1
    ChimeraX-mmCIF: 2.14.1
    ChimeraX-MMTF: 2.2
    ChimeraX-Modeller: 1.5.17
    ChimeraX-ModelPanel: 1.5
    ChimeraX-ModelSeries: 1.0.1
    ChimeraX-Mol2: 2.0.3
    ChimeraX-Mole: 1.0
    ChimeraX-Morph: 1.0.2
    ChimeraX-MouseModes: 1.2
    ChimeraX-Movie: 1.0
    ChimeraX-Neuron: 1.0
    ChimeraX-Nifti: 1.2
    ChimeraX-NMRSTAR: 1.0.2
    ChimeraX-NRRD: 1.2
    ChimeraX-Nucleotides: 2.0.3
    ChimeraX-OpenCommand: 1.13.5
    ChimeraX-PDB: 2.7.5
    ChimeraX-PDBBio: 1.0.1
    ChimeraX-PDBLibrary: 1.0.4
    ChimeraX-PDBMatrices: 1.0
    ChimeraX-PickBlobs: 1.0.1
    ChimeraX-Positions: 1.0
    ChimeraX-PresetMgr: 1.1.1
    ChimeraX-PubChem: 2.2
    ChimeraX-ReadPbonds: 1.0.1
    ChimeraX-Registration: 1.1.2
    ChimeraX-RemoteControl: 1.0
    ChimeraX-RenderByAttr: 1.4.1
    ChimeraX-RenumberResidues: 1.1
    ChimeraX-ResidueFit: 1.0.1
    ChimeraX-RestServer: 1.2
    ChimeraX-RNALayout: 1.0
    ChimeraX-RotamerLibMgr: 4.0
    ChimeraX-RotamerLibsDunbrack: 2.0
    ChimeraX-RotamerLibsDynameomics: 2.0
    ChimeraX-RotamerLibsRichardson: 2.0
    ChimeraX-SaveCommand: 1.5.1
    ChimeraX-SchemeMgr: 1.0
    ChimeraX-SDF: 2.0.2
    ChimeraX-Segger: 1.0
    ChimeraX-Segment: 1.0.1
    ChimeraX-Segmentations: 3.0.15
    ChimeraX-SelInspector: 1.0
    ChimeraX-SeqView: 2.11.2
    ChimeraX-Shape: 1.0.1
    ChimeraX-Shell: 1.0.1
    ChimeraX-Shortcuts: 1.1.1
    ChimeraX-ShowSequences: 1.0.3
    ChimeraX-SideView: 1.0.1
    ChimeraX-Smiles: 2.1.2
    ChimeraX-SmoothLines: 1.0
    ChimeraX-SpaceNavigator: 1.0
    ChimeraX-StdCommands: 1.16.5
    ChimeraX-STL: 1.0.1
    ChimeraX-Storm: 1.0
    ChimeraX-StructMeasure: 1.2.1
    ChimeraX-Struts: 1.0.1
    ChimeraX-Surface: 1.0.1
    ChimeraX-SwapAA: 2.0.1
    ChimeraX-SwapRes: 2.5
    ChimeraX-TapeMeasure: 1.0
    ChimeraX-TaskManager: 1.0
    ChimeraX-Test: 1.0
    ChimeraX-Toolbar: 1.1.2
    ChimeraX-ToolshedUtils: 1.2.4
    ChimeraX-Topography: 1.0
    ChimeraX-ToQuest: 1.0
    ChimeraX-Tug: 1.0.1
    ChimeraX-UI: 1.39.1
    ChimeraX-uniprot: 2.3
    ChimeraX-UnitCell: 1.0.1
    ChimeraX-ViewDockX: 1.4.3
    ChimeraX-VIPERdb: 1.0
    ChimeraX-Vive: 1.1
    ChimeraX-VolumeMenu: 1.0.1
    ChimeraX-vrml: 1.0
    ChimeraX-VTK: 1.0
    ChimeraX-WavefrontOBJ: 1.0
    ChimeraX-WebCam: 1.0.2
    ChimeraX-WebServices: 1.1.4
    ChimeraX-Zone: 1.0.1
    colorama: 0.4.6
    comm: 0.2.2
    contourpy: 1.2.1
    cxservices: 1.2.2
    cycler: 0.12.1
    Cython: 3.0.10
    debugpy: 1.8.1
    decorator: 5.1.1
    docutils: 0.20.1
    executing: 2.0.1
    filelock: 3.13.4
    fonttools: 4.53.0
    funcparserlib: 2.0.0a0
    glfw: 2.7.0
    grako: 3.16.5
    h5py: 3.11.0
    html2text: 2024.2.26
    idna: 3.7
    ihm: 1.0
    imagecodecs: 2024.1.1
    imagesize: 1.4.1
    ipykernel: 6.29.2
    ipython: 8.21.0
    ipywidgets: 8.1.3
    jedi: 0.19.1
    jinja2: 3.1.4
    jupyter-client: 8.6.0
    jupyter-core: 5.7.2
    jupyterlab-widgets: 3.0.11
    kiwisolver: 1.4.5
    line-profiler: 4.1.2
    lxml: 5.2.1
    lz4: 4.3.3
    MarkupSafe: 2.1.5
    matplotlib: 3.8.4
    matplotlib-inline: 0.1.7
    msgpack: 1.0.8
    nest-asyncio: 1.6.0
    netCDF4: 1.6.5
    networkx: 3.3
    nibabel: 5.2.0
    nptyping: 2.5.0
    numexpr: 2.10.0
    numpy: 1.26.4
    openvr: 1.26.701
    packaging: 23.2
    ParmEd: 4.2.2
    parso: 0.8.4
    pep517: 0.13.1
    pexpect: 4.9.0
    pillow: 10.3.0
    pip: 24.0
    pkginfo: 1.10.0
    platformdirs: 4.2.2
    prompt-toolkit: 3.0.47
    psutil: 5.9.8
    ptyprocess: 0.7.0
    pure-eval: 0.2.2
    py-cpuinfo: 9.0.0
    pycollada: 0.8
    pydicom: 2.4.4
    pygments: 2.17.2
    pynmrstar: 3.3.4
    pynrrd: 1.0.0
    PyOpenGL: 3.1.7
    PyOpenGL-accelerate: 3.1.7
    pyopenxr: 1.0.3401
    pyparsing: 3.1.2
    pyproject-hooks: 1.1.0
    PyQt6-commercial: 6.6.1
    PyQt6-Qt6: 6.6.3
    PyQt6-sip: 13.6.0
    PyQt6-WebEngine-commercial: 6.6.0
    PyQt6-WebEngine-Qt6: 6.6.3
    python-dateutil: 2.9.0.post0
    pytz: 2024.1
    pyzmq: 26.0.3
    qtconsole: 5.5.1
    QtPy: 2.4.1
    RandomWords: 0.4.0
    requests: 2.31.0
    scipy: 1.13.0
    setuptools: 69.5.1
    setuptools-scm: 8.0.4
    sfftk-rw: 0.8.1
    six: 1.16.0
    snowballstemmer: 2.2.0
    sortedcontainers: 2.4.0
    soupsieve: 2.5
    sphinx: 7.2.6
    sphinx-autodoc-typehints: 2.0.1
    sphinxcontrib-applehelp: 1.0.8
    sphinxcontrib-blockdiag: 3.0.0
    sphinxcontrib-devhelp: 1.0.6
    sphinxcontrib-htmlhelp: 2.0.5
    sphinxcontrib-jsmath: 1.0.1
    sphinxcontrib-qthelp: 1.0.7
    sphinxcontrib-serializinghtml: 1.1.10
    stack-data: 0.6.3
    superqt: 0.6.3
    tables: 3.8.0
    tcia-utils: 1.5.1
    tifffile: 2024.1.30
    tinyarray: 1.2.4
    tornado: 6.4.1
    traitlets: 5.14.2
    typing-extensions: 4.12.2
    tzdata: 2024.1
    urllib3: 2.2.1
    wcwidth: 0.2.13
    webcolors: 1.13
    wheel: 0.43.0
    wheel-filename: 1.4.1
    widgetsnbextension: 4.0.11

Change History (2)

comment:1 by Eric Pettersen, 14 months ago

Component: UnassignedInput/Output
Owner: set to Tom Goddard
Platform: all
Project: ChimeraX
Status: newassigned
Summary: ChimeraX bug report submissionGLTF: KeyError: 'bufferView'

comment:2 by Tom Goddard, 14 months ago

Resolution: limitation
Status: assignedclosed

The user tried to open GLTF file which probably contains sparse accessors, not handled by the ChimeraX GLTF reader. Sparse accessors allow creating an array of zero values and then just specifying some of the array elements to have other values. I don't plan on supporting this (along with many other GLTF features) unless there is a clear need.

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