topic Re: Anyone know what cause this crash : FbxGeometryConverter::Triangulate() ? in FBX Forum

Anyone know what cause this crash : FbxGeometryConverter::Triangulate() ?

Anonymous — Thu, 03 Mar 2016 02:51:26 GMT

Hi there.

We are using FbxGeometryConverter::Triangulate() and it's causing a crash in

some kind of FBX files.

I couldn't attach examples for some reasons but it's sure that it doesn't include any NURBs.

Version:

Autodesk FBX SDK 2016.1.2 Release, September 10th 2015

Does anyone know of a way to solve a problem ?

Thanks,

Re: Anyone know what cause this crash : FbxGeometryConverter::Triangulate() ?

viviane.rochon — Fri, 04 Mar 2016 17:12:00 GMT

Hi kuzume7WAC6,

To attach files in this forum, you must zip them beforehand.

Please attach the file - it will help us investigate the issue.

Thanks!

Viviane

Re: Anyone know what cause this crash : FbxGeometryConverter::Triangulate() ?

Anonymous — Tue, 08 Mar 2016 02:01:43 GMT

Hi Viviane

Here is triangulate.zip which contains a triangle.sln that always reproduces the problem.

> triangulate.exe!main(int argc, char * * argv) Line 49 C++
triangulate.exe!__tmainCRTStartup() Line 536 C
triangulate.exe!mainCRTStartup() Line 377 C
kernel32.dll!75c3338a() Unknown
[Frames below may be incorrect and/or missing, no symbols loaded for kernel32.dll]
ntdll.dll!77e29a02() Unknown
ntdll.dll!77e299d5() Unknown

Required tools

VisualStudio 2012
Autodesk FBX SDK 2016.1.2 Release, September 10th 2015

Thanks

Re: Anyone know what cause this crash : FbxGeometryConverter::Triangulate() ?

Anonymous — Sun, 13 Mar 2016 05:40:42 GMT

Hi Viviane.

Could you reproduce the problem with our attached file ?

Please let me know if there's anything we can do.

Thanks

kuzume

Re: Anyone know what cause this crash : FbxGeometryConverter::Triangulate() ?

viviane.rochon — Mon, 14 Mar 2016 18:39:02 GMT

Hi Kuzume,

Yes, we could reproduce your issue using your file.

We logged it internally as FBXX-1145.

Thank you!

Viviane

Re: Anyone know what cause this crash : FbxGeometryConverter::Triangulate() ?

Anonymous — Tue, 15 Mar 2016 05:00:02 GMT

Hi viviane,

Thanks a lot for your investigating and we're looking forward to fixing the issue FBXX-1145.

kuzume

Re: Anyone know what cause this crash : FbxGeometryConverter::Triangulate() ?

Anonymous — Thu, 07 Apr 2016 01:58:43 GMT

Hi Viviane.

Please let me know when does it fix if you can.

Thanks!

kuzume

Re: Anyone know what cause this crash : FbxGeometryConverter::Triangulate() ?

viviane.rochon — Tue, 15 Nov 2016 17:16:47 GMT

Hi Kuzume,

The crash is actually the consequence of an assert in debug mode. The file has bad data. An assert is raised because the line's start and end points are the same, and the FBX SDK cannot compute the direction of the line. The same program built in Release will complete the triangulation calls, but the result is going to be a mesh with some holes caused by the degenerated data that causes the assert to raise in the first place.

I hope this clears things up!

Re: Anyone know what cause this crash : FbxGeometryConverter::Triangulate() ?

Anonymous — Tue, 07 Feb 2017 05:33:05 GMT

It was nice of you to take the time to solve this problem.

Thnaks a lot.

kuzume