Importing attached OBJ file without Validate option crashes later when deleting vertices #104593

New Issue

pedi · 2023-02-10T20:39:49+01:00

pedi commented

2023-02-10 20:39:49 +01:00

System Information
Operating system: Windows-10-10.0.22621-SP0 64 Bits
Graphics card: GeForce GTX 1060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 461.40

Blender Version
Broken: version: 3.4.0, branch: blender-v3.4-release, commit date: 2022-12-06 18:46, hash: rBa95bf1ac01be
Worked: (newest version of Blender that worked as expected)

Short description of error
Blender crashes every time I try to delete vertices of this object.

Exact steps for others to reproduce the error
I imported this object from .obj source. I see some unusual edges on it, but I can't fix it. Blender crashes when I try to delete edges or vertices.

Use the new OBJ importer to import screw.obj
This will cause crashes without first validating the mesh
Compared with the old OBJ importer, which doesn't crash as it always validates, there are also rogue edges present that are not cleaned up after validating the mesh

**System Information** Operating system: Windows-10-10.0.22621-SP0 64 Bits Graphics card: GeForce GTX 1060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 461.40 **Blender Version** Broken: version: 3.4.0, branch: blender-v3.4-release, commit date: 2022-12-06 18:46, hash: `rBa95bf1ac01be` Worked: (newest version of Blender that worked as expected) **Short description of error** Blender crashes every time I try to delete vertices of this object. **Exact steps for others to reproduce the error** I imported this object from .obj source. I see some unusual edges on it, but I can't fix it. Blender crashes when I try to delete edges or vertices. - Use the new OBJ importer to import `screw.obj` - This will cause crashes without first validating the mesh - Compared with the old OBJ importer, which doesn't crash as it always validates, there are also rogue edges present that are not cleaned up after validating the mesh

screw.blend

2.2 MiB

screw.obj

2.2 MiB

pedi added the

labels 2023-02-10 20:39:50 +01:00

Jesse Yurkovich added

Status

Needs Information from User

and removed

Status

Needs Triage

labels 2023-02-11 00:50:13 +01:00

Jesse Yurkovich commented

2023-02-11 00:50:22 +01:00

The mesh does seem corrupted. You can fix it by doing the following:

Go to Object mode in your file
Switch to the Scripting tab and make sure the object is selected
Execute the following C.active_object.data.validate(verbose=True) in the Python console

In order for us to potentially fix the underlying issue however we need more information. Can you provide the following:

The original .obj file you used
Which importer did you use? Did you use "Wavefront (.obj) (legacy)" or did you use "Wavefront (.obj)"?

The mesh does seem corrupted. You can fix it by doing the following: - Go to Object mode in your file - Switch to the Scripting tab and make sure the object is selected - Execute the following `C.active_object.data.validate(verbose=True)` in the Python console In order for us to potentially fix the underlying issue however we need more information. Can you provide the following: - The original .obj file you used - Which importer did you use? Did you use "Wavefront (.obj) (legacy)" or did you use "Wavefront (.obj)"?

👍 1

pedi commented

2023-02-12 00:19:52 +01:00

The mesh does seem corrupted. You can fix it by doing the following:

Go to Object mode in your file

Switch to the Scripting tab and make sure the object is selected

Execute the following C.active_object.data.validate(verbose=True) in the Python console

In order for us to potentially fix the underlying issue however we need more information. Can you provide the following:

The original .obj file you used

Which importer did you use? Did you use "Wavefront (.obj) (legacy)" or did you use "Wavefront (.obj)"?

Thank you very much! It works! I used Wavefront(.obj)
Here you are, I've attached the orginal object

> The mesh does seem corrupted. You can fix it by doing the following: > - Go to Object mode in your file > - Switch to the Scripting tab and make sure the object is selected > - Execute the following `C.active_object.data.validate(verbose=True)` in the Python console > > In order for us to potentially fix the underlying issue however we need more information. Can you provide the following: > - The original .obj file you used > - Which importer did you use? Did you use "Wavefront (.obj) (legacy)" or did you use "Wavefront (.obj)"? > Thank you very much! It works! I used Wavefront(.obj) Here you are, I've attached the orginal object

screw.obj

2.2 MiB

Jesse Yurkovich added

Module

Pipeline, Assets & IO

Status

Confirmed

and removed

Status

Needs Information from User

labels 2023-02-12 01:49:52 +01:00

Jesse Yurkovich commented

2023-02-12 01:57:14 +01:00

@aras_p Are you able to take a look? Validating the mesh does fix the crash but there appears to be other odd Edges remaining in the mesh that are not present using the Pyhon importer. Unsure if those might be related to the crash.

Aras Pranckevicius changed title from ~~Crash by Deleting the Vertices~~ to Importing attached OBJ file without Validate option crashes later when deleting vertices

2023-02-14 16:35:22 +01:00

Aras Pranckevicius self-assigned this 2023-02-14 16:35:40 +01:00

Aras Pranckevicius referenced this issue from a commit

2023-02-14 20:50:00 +01:00

OBJ: fixed some faces wrongly skipped in invalid face validation logic (#104593)

Aras Pranckevicius closed this issue

2023-02-14 20:50:01 +01:00

Blender Bot added

Status

Resolved

and removed

Status