Packed geo instancing + alembic crashes houdini
Posted: Wed Nov 26, 2025 7:48 pm
Hello,
There is a crash when Packed geo instancing property is turned on, and there is alembic file inside geo node. Error says it's Houdini memory allocation problem.
The point is that I have a scenario where I load alembic in geo node, and do simple rotational transform. Imagine car wheel animation. Motion blur is not correct, although there is transformation over packed alembic file.
But, if I convert alembic to poly, then pack it, and do transform then, with Packed geo instancing turned on, I get proper motion blur. So, why there is difference if I pack geometry in scene and load packed alembic? Later one crashes Houdini.
Is that a bug or some limitation?
Best,
Doca
There is a crash when Packed geo instancing property is turned on, and there is alembic file inside geo node. Error says it's Houdini memory allocation problem.
The point is that I have a scenario where I load alembic in geo node, and do simple rotational transform. Imagine car wheel animation. Motion blur is not correct, although there is transformation over packed alembic file.
But, if I convert alembic to poly, then pack it, and do transform then, with Packed geo instancing turned on, I get proper motion blur. So, why there is difference if I pack geometry in scene and load packed alembic? Later one crashes Houdini.
Is that a bug or some limitation?
Best,
Doca