Crash when creating a geometry node

[tkarabela]

I've encountered a crash when adding OpenMfx geometry node, following instructions from https://openmesheffect.org/QuickStart/using-openmfx.html#as-a-geometry-node

Steps to reproduce

• Run Blender
• Switch to Geometry Nodes tab
• Add Geometry Nodes
• Add Mesh Primitives > OpenMfx Plugin node
• SIGSEGV

My setup The crash happens with mfx-v0.16.0-rc1 (d8592ce049a4a7dfae40335fdad430ce6679b588) which I've built on Ubuntu 20.04, x86-64 in Debug configuration.

The crash It happens in MFX_node_get_effect_count, where m_library is NULL inside the runtime struct. I'm not familiar with the geometry nodes part of the mfx host so unfortunately don't know where to look further.

Notes

• Using OpenMfx as a modifier works fine, I've tested it with https://github.com/eliemichel/MfxExamples
• It doesn't matter if I try to add OpenMfx geometry node right away or if I first apply an OpenMfx modifier, load MfxExamples .ofx, select an effect (which works as expected), and after that try to add the geometry node

P.S. Nice to see OpenMfx moving forward @eliemichel! :)

[eliemichel]

My bad, I was a bit too in a hurry in my last update! To be fixed in a minute.

Nice to see you around :) I started recently to read over all our discussions to log the important ideas here https://openmfx.org/Rfc/002-edge-representation.html ! An OpenMfx keeps on living, especially thanks to @YassineMankai who I could hire for an internship with the Epic MegaGrant. What have you been working on lately?

[tkarabela]

Thanks for the fix! I've just sent you an e-mail :)