Crash when importing Alembic from Meshroom #61935

New Issue

brothermechanic · 2019-02-25T13:11:22+01:00

brothermechanic commented

2019-02-25 13:11:22 +01:00

System Information
Operating system: gentoo os
Graphics card:1060

Blender Version
Broken: 2.79*
Worked: 2.78
Short description of error
When import sfm.abc from Meshroom Blender crashed
Please try to import sfm.abc.zip from
https://sea-region.github.com/alicevision/meshroom/issues/170
Blender-2.8* crased too.

**System Information** Operating system: gentoo os Graphics card:1060 **Blender Version** Broken: 2.79* Worked: 2.78 **Short description of error** When import sfm.abc from Meshroom Blender crashed Please try to import sfm.abc.zip from https://sea-region.github.com/alicevision/meshroom/issues/170 Blender-2.8* crased too.

brothermechanic commented

2019-02-25 13:11:22 +01:00

Added subscriber: @brothermechanic

Sebastian Parborg commented

2019-02-25 16:51:13 +01:00

Added subscriber: @ZedDB

Sybren A. Stüvel was assigned by Sebastian Parborg

2019-02-25 16:51:13 +01:00

Sebastian Parborg commented

2019-02-25 16:51:13 +01:00

sfm.abc

Backtrace:

Thread 34 "blender" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffcbfff700 (LWP 7480)]
mul_m4_m4m4_uniq (R=R@entry=0x7fffcec686bc, A=A@entry=0x2b4, B=B@entry=0x7fffcbffe740)
    at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/math_matrix.c:194
194		__m128 A0 = _mm_loadu_ps(A[0]);
(gdb) bt
#0  mul_m4_m4m4_uniq (R=R@entry=0x7fffcec686bc, A=A@entry=0x2b4, B=B@entry=0x7fffcbffe740)
    at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/math_matrix.c:194
#1  0x0000555556b92dda in mul_m4_m4_pre (R=0x7fffcec686bc, A=0x2b4)
    at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/math_matrix.c:239
#2  0x0000555556b92e7d in mul_m4_m4m4 (R=R@entry=0x7fffcec686bc, A=<optimized out>, B=B@entry=0x7fffcec686bc)
    at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/math_matrix.c:183
#3  0x000055555666f845 in AbcObjectReader::read_matrix (this=0x7fffcec13600, r_mat=0x7fffcec686bc, time=0, scale=1, is_constant=@0x7fffcbffeaa7: false)
    at /home/zed/programmering/blender_master/blender/source/blender/alembic/intern/abc_object.cc:327
#4  0x000055555666fbcf in AbcObjectReader::setupObjectTransform (this=0x7fffcec13600, time=time@entry=0)
    at /home/zed/programmering/blender_master/blender/source/blender/alembic/intern/abc_object.cc:257
#5  0x0000555556621796 in import_startjob (user_data=0x7fffcf696300, stop=<optimized out>, do_update=<optimized out>, progress=<optimized out>)
    at /home/zed/programmering/blender_master/blender/source/blender/alembic/intern/alembic_capi.cc:772
#6  0x000055555611bbbf in do_job_thread (job_v=0x7fffcf195508)
    at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_jobs.c:330
- 7  0x00007ffff63993c3 in start_thread () from /lib64/libpthread.so.0
- 8  0x00007ffff13513ef in clone () from /lib64/libc.so.6

[sfm.abc](https://archive.blender.org/developer/F6712302/sfm.abc) Backtrace: ``` Thread 34 "blender" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffcbfff700 (LWP 7480)] mul_m4_m4m4_uniq (R=R@entry=0x7fffcec686bc, A=A@entry=0x2b4, B=B@entry=0x7fffcbffe740) at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/math_matrix.c:194 194 __m128 A0 = _mm_loadu_ps(A[0]); (gdb) bt #0 mul_m4_m4m4_uniq (R=R@entry=0x7fffcec686bc, A=A@entry=0x2b4, B=B@entry=0x7fffcbffe740) at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/math_matrix.c:194 #1 0x0000555556b92dda in mul_m4_m4_pre (R=0x7fffcec686bc, A=0x2b4) at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/math_matrix.c:239 #2 0x0000555556b92e7d in mul_m4_m4m4 (R=R@entry=0x7fffcec686bc, A=<optimized out>, B=B@entry=0x7fffcec686bc) at /home/zed/programmering/blender_master/blender/source/blender/blenlib/intern/math_matrix.c:183 #3 0x000055555666f845 in AbcObjectReader::read_matrix (this=0x7fffcec13600, r_mat=0x7fffcec686bc, time=0, scale=1, is_constant=@0x7fffcbffeaa7: false) at /home/zed/programmering/blender_master/blender/source/blender/alembic/intern/abc_object.cc:327 #4 0x000055555666fbcf in AbcObjectReader::setupObjectTransform (this=0x7fffcec13600, time=time@entry=0) at /home/zed/programmering/blender_master/blender/source/blender/alembic/intern/abc_object.cc:257 #5 0x0000555556621796 in import_startjob (user_data=0x7fffcf696300, stop=<optimized out>, do_update=<optimized out>, progress=<optimized out>) at /home/zed/programmering/blender_master/blender/source/blender/alembic/intern/alembic_capi.cc:772 #6 0x000055555611bbbf in do_job_thread (job_v=0x7fffcf195508) at /home/zed/programmering/blender_master/blender/source/blender/windowmanager/intern/wm_jobs.c:330 - 7 0x00007ffff63993c3 in start_thread () from /lib64/libpthread.so.0 - 8 0x00007ffff13513ef in clone () from /lib64/libc.so.6 ```

Jacques Lucke commented

2019-04-01 17:25:22 +02:00

Added subscriber: @JacquesLucke

Jacques Lucke commented

2019-04-01 17:25:22 +02:00

When I try to import the file, I get:

Alembic object /mvgRoot/mvgCameras is of unsupported schema type ''
Alembic object /mvgRoot/mvgCamerasUndefined is of unsupported schema type ''
AbcObjectReader::xform(): unable to find IXform for Alembic object '/mvgRoot/mvgCloud/mvgPointCloud/particleShape1'

When I try to import the file, I get: ``` Alembic object /mvgRoot/mvgCameras is of unsupported schema type '' Alembic object /mvgRoot/mvgCamerasUndefined is of unsupported schema type '' AbcObjectReader::xform(): unable to find IXform for Alembic object '/mvgRoot/mvgCloud/mvgPointCloud/particleShape1' ```

Jared Herman commented

2019-04-01 18:11:48 +02:00

Added subscriber: @Aternias

Jared Herman commented

2019-04-01 18:11:48 +02:00

This comment was removed by @Aternias

*This comment was removed by @Aternias*

blender-admin commented

2019-04-12 14:51:17 +02:00

This issue was referenced by 45b810e1f8

This issue was referenced by 45b810e1f8b088f3dc5329cfb0fe01092a156a6c

Sybren A. Stüvel commented

2019-04-12 14:59:48 +02:00

There are multiple aspects of this issue:

There is a crash. This I cannot reproduce any more with the current version of Blender.
Apparently Meshlab writes pointclouds without parent Xform object. Blender should be able to handle this, and I have a patch ready for this.

There are multiple aspects of this issue: - There is a crash. This I cannot reproduce any more with the current version of Blender. - Apparently Meshlab writes pointclouds without parent Xform object. Blender should be able to handle this, and I have a patch ready for this.

Sybren A. Stüvel commented

2019-04-12 15:07:56 +02:00

Changed status from 'Open' to: 'Resolved'

Sybren A. Stüvel closed this issue

2019-04-12 15:07:56 +02:00

brothermechanic commented

2019-04-18 21:17:00 +02:00

Hello
Looks like blender28 can import meshrooms abc file
sfm2.abc
but camera locations lost!
please test my file with blender-2.78, it imported abc as expected.

Hello Looks like blender28 can import meshrooms abc file [sfm2.abc](https://archive.blender.org/developer/F6957719/sfm2.abc) but camera locations lost! please test my file with blender-2.78, it imported abc as expected.

blender-admin commented

2019-08-01 14:54:22 +02:00

This issue was referenced by 2741992f66

This issue was referenced by 2741992f6608c0f76e1bc95ca5d6e05a63348c7f

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Crash when importing Alembic from Meshroom #61935