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[CRASH] Rendering Alembic with bifShape node

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Anonymous
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[CRASH] Rendering Alembic with bifShape node

Hi,

I am trying to render the alembic file read using the read_Alembic node in a bifrost graph and Maya crashes with the below Arnold stack-trace. I'm assuming this is not yet implemented in MtoA for the bifShape node type for alembic geometry and only the implicit bifrost geometry is currently supported? I guess MtoA should at least skip the translation in such cases or error out instead of actually crashing Maya.

 

signal caught: SIGSEGV -- Invalid memory reference
Stack trace:
/lib64/libc.so.6(+0x15ab97) [0x7fdb2787eb97]
AiArrayConvert
CreateMesh(char const*, ProcArgs&, std::vector, std::allocator > > const&)
ProcessExpObject(ProcArgs&, std::vector, std::allocator > >, std::string const&)
/usr/autodesk/bifrost/maya2019/2.0.1.1/bifrost/arnold-5.3.0.0/libarnold_bifrost_impl.so(+0x8d099) [0x7fd9d2813099]
/home/sshrestha/apps/arnold/mtoa/3.3.0.0/2019/plug-ins/../bin/libai.so(+0x86dc8b) [0x7fda69fe7c8b]
/home/sshrestha/apps/arnold/mtoa/3.3.0.0/2019/plug-ins/../bin/libai.so(+0x91d2e5) [0x7fda6a0972e5]
/home/sshrestha/apps/arnold/mtoa/3.3.0.0/2019/plug-ins/../bin/libai.so(+0x8e780f) [0x7fda6a06180f]
/home/sshrestha/apps/arnold/mtoa/3.3.0.0/2019/plug-ins/../bin/libai.so(+0x8e5a0f) [0x7fda6a05fa0f]
AiRender
/home/sshrestha/apps/arnold/mtoa/3.3.0.0/2019/plug-ins/../bin/libai_renderview.so(+0xa88a1) [0x7fda68a988a1]
/home/sshrestha/apps/arnold/mtoa/3.3.0.0/2019/plug-ins/../bin/libai_renderview.so(+0xa9d1e) [0x7fda68a99d1e]
/lib64/libpthread.so.0(+0x7dd5) [0x7fdb27af8dd5]
clone

 

Some background info - I'm essentially building a small compound that can update uvs by reading the latest alembic model file with uvs and setting the same on the animated alembic cache. So sort of a layered alembic support via bifrost.

 

Cheers,

Sachin

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