Crash when I import OBJ file #114304

New Issue

JoJang · 2023-10-31T08:24:34+01:00

JoJang commented

2023-10-31 08:24:34 +01:00

Blender Version
Broken: Blender 3.6.5, Commit date: 2023-10-16 14:30, Hash cf1e1ed46b
Worked: (newest version of Blender that worked as expected)

Short description of error
Crash when I import OBJ file

Exact steps for others to reproduce the error

Open Blender
Go to File > Import and Click Wavefront(.obj)
import the attached test.obj

test.obj
test.mtl

**Blender Version** Broken: Blender 3.6.5, Commit date: 2023-10-16 14:30, Hash cf1e1ed46b7e Worked: (newest version of Blender that worked as expected) **Short description of error** Crash when I import OBJ file **Exact steps for others to reproduce the error** - Open Blender - Go to `File` > `Import ` and Click `Wavefront(.obj)` - import the attached `test.obj` [test.obj](attachments/be2d0d2c-c42b-461d-a35c-aa1c9fbe9aae) [test.mtl](attachments/8b2c22f1-b0dc-4813-bc31-53125ea3ea11)

JoJang added the

labels 2023-10-31 08:24:35 +01:00

JoJang commented

2023-10-31 08:25:10 +01:00

No description provided.

blender.crash.txt

37 KiB

Hans Goudey commented

2023-10-31 10:29:51 +01:00

Thanks for the report. However, for us to fix the issue, we need clear steps to reproduce the issue and the necessary files.

Hans Goudey added

Status

Needs Information from User

and removed

Status

Needs Triage

labels 2023-10-31 10:29:58 +01:00

JoJang commented

2023-11-01 03:01:01 +01:00

Thanks for the report. However, for us to fix the issue, we need clear steps to reproduce the issue and the necessary files.

Thanks for the reply. Here are the OBJ files.
The steps to reproduce the issue:

Open Blender
Click file
Click Import and Click Wavefront(.obj)
Crash

Thanks！

> Thanks for the report. However, for us to fix the issue, we need clear steps to reproduce the issue and the necessary files. Thanks for the reply. Here are the OBJ files. The steps to reproduce the issue: 1. Open Blender 2. Click file 3. Click Import and Click Wavefront(.obj) 4. Crash Thanks！

test.mtl

2.8 KiB

test.obj

10 MiB

Hans Goudey added

Status

Needs Triage

and removed

Status

Needs Information from User

labels 2023-11-01 08:13:00 +01:00

Germano Cavalcante commented

2023-11-01 19:54:25 +01:00

I can confirm the crash.
It doesn't appear to be a regression (the same issue occurs in 3.6.5).
Since other applications allow importing this obj, I assume it's a problem in Blender.

In debug mode, this triggers an Assert:

 	blender.exe!_BLI_assert_abort() Line 49	C
 	blender.exe!blender::Vector<blender::VecBase<float,3>,4,blender::GuardedAllocator>::operator[](__int64 index) Line 293	C++
>	blender.exe!blender::io::obj::MeshFromGeometry::create_normals(Mesh * mesh) Line 381	C++
 	blender.exe!blender::io::obj::MeshFromGeometry::create_mesh(Main * bmain, blender::Map<std::string,std::unique_ptr<blender::io::obj::MTLMaterial,std::default_delete<blender::io::obj::MTLMaterial>>,4,blender::PythonProbingStrategy<1,0>,blender::DefaultHash<std::string>,blender::DefaultEquality<std::string>,blender::SimpleMapSlot<std::string,std::unique_ptr<blender::io::obj::MTLMaterial,std::default_delete<blender::io::obj::MTLMaterial>>>,blender::GuardedAllocator> & materials, blender::Map<std::string,Material *,4,blender::PythonProbingStrategy<1,0>,blender::DefaultHash<std::string>,blender::DefaultEquality<std::string>,blender::SimpleMapSlot<std::string,Material *>,blender::GuardedAllocator> & created_materials, const OBJImportParams & import_params) Line 62	C++
 	blender.exe!blender::io::obj::geometry_to_blender_objects(Main * bmain, Scene * scene, ViewLayer * view_layer, const OBJImportParams & import_params, blender::Vector<std::unique_ptr<blender::io::obj::Geometry,std::default_delete<blender::io::obj::Geometry>>,4,blender::GuardedAllocator> & all_geometries, const blender::io::obj::GlobalVertices & global_vertices, blender::Map<std::string,std::unique_ptr<blender::io::obj::MTLMaterial,std::default_delete<blender::io::obj::MTLMaterial>>,4,blender::PythonProbingStrategy<1,0>,blender::DefaultHash<std::string>,blender::DefaultEquality<std::string>,blender::SimpleMapSlot<std::string,std::unique_ptr<blender::io::obj::MTLMaterial,std::default_delete<blender::io::obj::MTLMaterial>>>,blender::GuardedAllocator> & materials, blender::Map<std::string,Material *,4,blender::PythonProbingStrategy<1,0>,blender::DefaultHash<std::string>,blender::DefaultEquality<std::string>,blender::SimpleMapSlot<std::string,Material *>,blender::GuardedAllocator> & created_materials) Line 64	C++
 	blender.exe!blender::io::obj::importer_main(Main * bmain, Scene * scene, ViewLayer * view_layer, const OBJImportParams & import_params, unsigned __int64 read_buffer_size) Line 125	C++
 	blender.exe!blender::io::obj::importer_main(bContext * C, const OBJImportParams & import_params) Line 98	C++
 	blender.exe!OBJ_import(bContext * C, const OBJImportParams * import_params) Line 38	C++
 	blender.exe!wm_obj_import_exec(bContext * C, wmOperator * op) Line 424	C++
 	blender.exe!wm_handler_fileselect_do(bContext * C, ListBase * handlers, wmEventHandler_Op * handler, int val) Line 2805	C++
 	blender.exe!wm_handler_fileselect_call(bContext * C, ListBase * handlers, wmEventHandler_Op * handler, const wmEvent * event) Line 2898	C++
 	blender.exe!wm_handlers_do_intern(bContext * C, wmWindow * win, wmEvent * event, ListBase * handlers) Line 3396	C++
 	blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 3450	C++
 	blender.exe!wm_event_do_handlers(bContext * C) Line 4077	C++
 	blender.exe!WM_main(bContext * C) Line 616	C++
 	blender.exe!main(int argc, const char * * __formal) Line 590	C++
 	[External Code]

@aras_p, does this ring a bell?

I can confirm the crash. It doesn't appear to be a regression (the same issue occurs in 3.6.5). Since other applications allow importing this obj, I assume it's a problem in Blender. In debug mode, this triggers an Assert: ``` blender.exe!_BLI_assert_abort() Line 49 C blender.exe!blender::Vector<blender::VecBase<float,3>,4,blender::GuardedAllocator>::operator[](__int64 index) Line 293 C++ > blender.exe!blender::io::obj::MeshFromGeometry::create_normals(Mesh * mesh) Line 381 C++ blender.exe!blender::io::obj::MeshFromGeometry::create_mesh(Main * bmain, blender::Map<std::string,std::unique_ptr<blender::io::obj::MTLMaterial,std::default_delete<blender::io::obj::MTLMaterial>>,4,blender::PythonProbingStrategy<1,0>,blender::DefaultHash<std::string>,blender::DefaultEquality<std::string>,blender::SimpleMapSlot<std::string,std::unique_ptr<blender::io::obj::MTLMaterial,std::default_delete<blender::io::obj::MTLMaterial>>>,blender::GuardedAllocator> & materials, blender::Map<std::string,Material *,4,blender::PythonProbingStrategy<1,0>,blender::DefaultHash<std::string>,blender::DefaultEquality<std::string>,blender::SimpleMapSlot<std::string,Material *>,blender::GuardedAllocator> & created_materials, const OBJImportParams & import_params) Line 62 C++ blender.exe!blender::io::obj::geometry_to_blender_objects(Main * bmain, Scene * scene, ViewLayer * view_layer, const OBJImportParams & import_params, blender::Vector<std::unique_ptr<blender::io::obj::Geometry,std::default_delete<blender::io::obj::Geometry>>,4,blender::GuardedAllocator> & all_geometries, const blender::io::obj::GlobalVertices & global_vertices, blender::Map<std::string,std::unique_ptr<blender::io::obj::MTLMaterial,std::default_delete<blender::io::obj::MTLMaterial>>,4,blender::PythonProbingStrategy<1,0>,blender::DefaultHash<std::string>,blender::DefaultEquality<std::string>,blender::SimpleMapSlot<std::string,std::unique_ptr<blender::io::obj::MTLMaterial,std::default_delete<blender::io::obj::MTLMaterial>>>,blender::GuardedAllocator> & materials, blender::Map<std::string,Material *,4,blender::PythonProbingStrategy<1,0>,blender::DefaultHash<std::string>,blender::DefaultEquality<std::string>,blender::SimpleMapSlot<std::string,Material *>,blender::GuardedAllocator> & created_materials) Line 64 C++ blender.exe!blender::io::obj::importer_main(Main * bmain, Scene * scene, ViewLayer * view_layer, const OBJImportParams & import_params, unsigned __int64 read_buffer_size) Line 125 C++ blender.exe!blender::io::obj::importer_main(bContext * C, const OBJImportParams & import_params) Line 98 C++ blender.exe!OBJ_import(bContext * C, const OBJImportParams * import_params) Line 38 C++ blender.exe!wm_obj_import_exec(bContext * C, wmOperator * op) Line 424 C++ blender.exe!wm_handler_fileselect_do(bContext * C, ListBase * handlers, wmEventHandler_Op * handler, int val) Line 2805 C++ blender.exe!wm_handler_fileselect_call(bContext * C, ListBase * handlers, wmEventHandler_Op * handler, const wmEvent * event) Line 2898 C++ blender.exe!wm_handlers_do_intern(bContext * C, wmWindow * win, wmEvent * event, ListBase * handlers) Line 3396 C++ blender.exe!wm_handlers_do(bContext * C, wmEvent * event, ListBase * handlers) Line 3450 C++ blender.exe!wm_event_do_handlers(bContext * C) Line 4077 C++ blender.exe!WM_main(bContext * C) Line 616 C++ blender.exe!main(int argc, const char * * __formal) Line 590 C++ [External Code] ``` @aras_p, does this ring a bell?

Germano Cavalcante added

Module

Pipeline, Assets & IO

and removed

labels 2023-11-01 19:58:22 +01:00

Aras Pranckevicius commented

2023-11-01 20:43:58 +01:00

Thanks for the report, will look into what's going on