Unable to open some GLTF files

[RedAuburn]

Exhibit is unable to open these GLTF files (tested on latest release and manual build from latest master).
They work in the latest version of F3D.

https://github.com/tordanik/OSM2World-default-style/tree/master/models/car

Main bit:

Found a reader for "/run/user/1000/doc/92f187f8/car_hatchback.gltf" : "GLTFDraco"

Loading files: 
/run/user/1000/doc/92f187f8/car_hatchback.gltf

ERROR: In vtkURILoader.cxx, line 210
vtkURILoader (0x7fa1680b4030): Failed to open file "/run/user/1000/doc/92f187f8/car_hatchback.bin"


ERROR: In vtkGLTFImporter.cxx, line 442
vtkF3D

Full Log (expand me)

Application started at 14:13:51
['abc', 'fbx', 'dae', 'dxf', 'off', 'x', '3mf', 'drc', 'gltf', 'glb', 'exo', 'ex2', 'e', '3ds', 'gml', 'dcm', 'gltf', 'glb', 'mha', 'mhd', 'nrrd', 'nhdr', 'obj', 'ply', 'pts', 'stl', 'tiff', 'tif', 'wrl', 'vrml', 'vtk', 'vtu', 'vtp', 'vti', 'vtr', 'vts', 'vtm', 'splat', 'stp', 'step', 'stpnc', 'p21', '210', 'igs', 'iges', 'brep', 'xbf', 'usd', 'usdc', 'usda', 'usdz']
debug
{'cocoa': False, 'egl': True, 'glx': True, 'osmesa': False, 'wgl': False}
VTK window class type is vtkF3DExternalRenderWindow
14:13:52 (f3d_viewer.py:151) INFO: F3D viewer initialized successfully
14:13:52 (window.py:610) INFO: Use color is: False
{'render.background.color': [0.117, 0.117, 0.117]}
No animation available, cannot load a specific animation time
No camera available

Number of files: 0
Number of actors: 0


Not coloring

Scene bounding box: 1,-1,1,-1,1,-1

Camera position: 0,0,1
Camera focal point: 0,0,0
Camera view up: 0,1,0
Camera view angle: 30


14:13:52 (window.py:629) INFO: Setting: translucency-support to True
{'render.effect.translucency_support': True}
14:13:52 (window.py:512) INFO: Setting switch to True
14:13:52 (window.py:629) INFO: Setting: tone-mapping to True
{'render.effect.tone_mapping': True}
14:13:52 (window.py:512) INFO: Setting switch to True
14:13:52 (window.py:629) INFO: Setting: ambient-occlusion to False
{'render.effect.ambient_occlusion': False}
14:13:52 (window.py:512) INFO: Setting switch to False
14:13:52 (window.py:629) INFO: Setting: anti-aliasing to True
{'render.effect.anti_aliasing': True}
14:13:52 (window.py:512) INFO: Setting switch to True
14:13:52 (window.py:629) INFO: Setting: hdri-ambient to False
{'render.hdri.ambient': False}
14:13:52 (window.py:512) INFO: Setting switch to False
14:13:52 (window.py:629) INFO: Setting: light-intensity to 1.5
{'render.light.intensity': 1.5}
14:13:52 (window.py:516) INFO: Setting spin to 1.5
14:13:52 (window.py:629) INFO: Setting: show-edges to False
{'render.show_edges': False}
14:13:52 (window.py:512) INFO: Setting switch to False
14:13:52 (window.py:629) INFO: Setting: edges-width to 1.0
{'render.line_width': 1.0}
14:13:52 (window.py:516) INFO: Setting spin to 1.0
14:13:52 (window.py:629) INFO: Setting: sprite-enabled to False
{'model.point_sprites.enable': False}
14:13:52 (window.py:512) INFO: Setting switch to False
14:13:52 (window.py:629) INFO: Setting: point-size to 1.0
{'render.point_size': 1.0}
14:13:52 (window.py:516) INFO: Setting spin to 1.0
14:13:52 (window.py:629) INFO: Setting: sprites-type to sphere
{'model.point_sprites.type': 'sphere'}
14:13:52 (window.py:638) INFO: Setting: sprites-type to gaussian
14:13:52 (window.py:629) INFO: Setting: sprites-size to 1.0
{'model.point_sprites.size': 1.0}
14:13:52 (window.py:516) INFO: Setting spin to 1.0
14:13:52 (window.py:629) INFO: Setting: model-metallic to 0.0
{'model.material.metallic': 0.0}
14:13:52 (window.py:516) INFO: Setting spin to 0.0
14:13:52 (window.py:629) INFO: Setting: model-roughness to 0.3
{'model.material.roughness': 0.3}
14:13:52 (window.py:516) INFO: Setting spin to 0.3
14:13:52 (window.py:629) INFO: Setting: model-opacity to 1.0
{'model.color.opacity': 1.0}
14:13:52 (window.py:516) INFO: Setting spin to 1.0
14:13:52 (window.py:629) INFO: Setting: armature-enable to False
{'render.armature.enable': False}
14:13:52 (window.py:512) INFO: Setting switch to False
14:13:52 (window.py:629) INFO: Setting: scivis-component to -1
{'model.scivis.component': -1}
14:13:52 (window.py:531) DEBUG: Setting scivis component combo, selected: 0
14:13:52 (window.py:629) INFO: Setting: cells to True
{'model.scivis.cells': True}
14:13:52 (window.py:531) DEBUG: Setting scivis component combo, selected: 0
14:13:52 (window.py:629) INFO: Setting: scivis-enabled to False
{'model.scivis.enable': False}
14:13:52 (window.py:629) INFO: Setting: model-color to (1.0, 1.0, 1.0)
{'model.color.rgb': (1.0, 1.0, 1.0)}
14:13:52 (window.py:629) INFO: Setting: grid to True
{'render.grid.enable': True}
14:13:52 (window.py:512) INFO: Setting switch to True
14:13:52 (window.py:629) INFO: Setting: grid-absolute to False
{'render.grid.absolute': False}
14:13:52 (window.py:512) INFO: Setting switch to False
14:13:52 (window.py:629) INFO: Setting: hdri-skybox to False
{'render.background.skybox': False}
14:13:52 (window.py:512) INFO: Setting switch to False
14:13:52 (window.py:629) INFO: Setting: hdri-file to 
{'render.hdri.file': ''}
14:13:52 (window.py:508) INFO: Setting hdri file row filename to 
{'render.hdri.file': '', 'render.background.skybox': False}
14:13:52 (window.py:629) INFO: Setting: blur-background to True
{'render.background.blur.enable': True}
14:13:52 (window.py:512) INFO: Setting switch to True
14:13:52 (window.py:629) INFO: Setting: blur-coc to 20.0
{'render.background.blur.coc': 20.0}
14:13:52 (window.py:516) INFO: Setting spin to 20.0
14:13:52 (window.py:629) INFO: Setting: bg-color to (1.0, 1.0, 1.0)
{'render.background.color': (1.0, 1.0, 1.0)}
14:13:52 (window.py:610) INFO: Use color is: False
{'render.background.color': [0.117, 0.117, 0.117]}
14:13:52 (window.py:629) INFO: Setting: up to +Y
{'scene.up_direction': '+Y'}
14:13:52 (window.py:521) INFO: Setting up direction combo to 3
14:13:52 (window.py:629) INFO: Setting: orthographic to False
{'scene.camera.orthographic': False}
14:13:52 (window.py:629) INFO: Setting: animation-index to 0
{'scene.animation.index': 0}
14:13:52 (window.py:629) INFO: Setting: animation-time to 0.0
{}
14:13:52 (window.py:629) INFO: Setting: normal-scale to 1.0
{'model.normal.scale': 1.0}
14:13:52 (window.py:629) INFO: Setting: volume to False
{'model.volume.enable': False}
14:13:52 (window.py:629) INFO: Setting: inverse to False
{'model.volume.inverse': False}
14:13:52 (window.py:629) INFO: Setting: grid-color to (0.0, 0.0, 0.0)
{'render.grid.color': (0.0, 0.0, 0.0)}
14:13:52 (window.py:638) INFO: Setting: use-color to False
14:13:52 (window.py:610) INFO: Use color is: False
{'render.background.color': [0.117, 0.117, 0.117]}
14:13:52 (window.py:512) INFO: Setting switch to False
14:13:52 (window.py:638) INFO: Setting: point-up to True
14:13:52 (window.py:512) INFO: Setting switch to True
14:13:52 (window.py:638) INFO: Setting: auto-reload to True
14:13:52 (window.py:512) INFO: Setting switch to True
14:13:52 (window.py:658) INFO: Setting: auto-best to True
14:13:52 (window.py:512) INFO: Setting switch to True
14:13:52 (window.py:658) INFO: Setting: sidebar-show to True
14:13:52 (window.py:444) INFO: Started
14:14:08 (window.py:838) INFO: open file response
{'cocoa': False, 'egl': True, 'glx': True, 'osmesa': False, 'wgl': False}
VTK window class type is vtkF3DExternalRenderWindow
14:14:08 (f3d_viewer.py:151) INFO: F3D viewer initialized successfully
14:14:08 (window.py:869) DEBUG: load file: /run/user/1000/doc/92f187f8/car_hatchback.gltf
14:14:08 (window.py:876) DEBUG: choosing best settings
14:14:08 (window.py:884) DEBUG: best settings is general
14:14:08 (window.py:796) DEBUG: Requested changing settings to 'general'
14:14:08 (window.py:725) DEBUG: settings from name
14:14:08 (window.py:629) INFO: Setting: sprites-type to sphere
{'model.point_sprites.type': 'sphere'}
{'render.effect.translucency_support': True, 'render.effect.tone_mapping': True, 'render.effect.ambient_occlusion': False, 'render.effect.anti_aliasing': True, 'render.hdri.ambient': False, 'render.light.intensity': 1.5, 'render.show_edges': False, 'render.line_width': 1.0, 'model.point_sprites.enable': False, 'render.point_size': 1.0, 'model.point_sprites.type': 'sphere', 'model.point_sprites.size': 1.0, 'model.material.metallic': 0.0, 'model.material.roughness': 0.3, 'model.color.opacity': 1.0, 'render.armature.enable': False, 'model.scivis.component': -1, 'model.scivis.cells': True, 'model.scivis.enable': False, 'model.color.rgb': (1.0, 1.0, 1.0), 'render.grid.enable': True, 'render.grid.absolute': False, 'render.background.skybox': False, 'render.hdri.file': '', 'render.background.blur.enable': True, 'render.background.blur.coc': 20.0, 'render.background.color': (1.0, 1.0, 1.0), 'scene.up_direction': '+Y', 'scene.camera.orthographic': False, 'scene.animation.index': 0, 'model.normal.scale': 1.0, 'model.volume.enable': False, 'model.volume.inverse': False, 'render.grid.color': (0.0, 0.0, 0.0)}
14:14:08 (window.py:610) INFO: Use color is: False
{'render.background.color': [0.117, 0.117, 0.117]}
Found a reader for "/run/user/1000/doc/92f187f8/car_hatchback.gltf" : "GLTFDraco"

Loading files: 
/run/user/1000/doc/92f187f8/car_hatchback.gltf

ERROR: In vtkURILoader.cxx, line 210
vtkURILoader (0x7fa1680b4030): Failed to open file "/run/user/1000/doc/92f187f8/car_hatchback.bin"


ERROR: In vtkGLTFImporter.cxx, line 442
vtkF3DGLTFDracoImporter (0x7fa1680b1580): Error loading model data


14:14:08 (f3d_viewer.py:272) ERROR: Error while loading file: failed to load scene
14:14:08 (window.py:932) DEBUG: on file not opened
14:14:08 (window.py:610) INFO: Use color is: False
{'render.background.color': [0.117, 0.117, 0.117]}

[Nokse22]

I run into this issue as well, I don't really know how to fix it other than breaking the Flatpak sandbox and giving filesystem access (F3D has complete access to the home directory).

This kind of files have a .gltf and a separate .bin file where the actual data is stored, but opening the .gltf alone will not give the app access to the .bin file.

[mwestphal]

Hi @Nokse22

I believe you need F3D to fix this first: f3d-app/f3d#1100

This may take a while though :/

[Nokse22]

Thank you @mwestphal, flatpaks exposes files to the app using a portal in /run/user/1000/doc/... so opening the .gltf file alone doesn't give the app access to the .bin file that the GLFT expects to be in the same folder.
So it is a drawback of flatpaks portals.