[Maya-Python] Programmatically create and connect Alembic nodes

[Marcus Ottosson]

Is there any way of doing something this?

from maya import cmds

# Create
mesh = cmds.createNode("mesh")
alembic = cmds.createNode("AlembicNode")

# Set
cmds.setAttr(alembic + ".abc_File", "/folder/file.abc", type="string")

# Connect
cmds.connectAttr(alembic + ".outPolyMesh[0]", mesh + ".inMesh")

I figure the Alembic needs some form of “initialisation” in order for it to create the compound output attribute outPolyMesh, but even if it did, how can I find out which mesh is coming from which attribute?

Thanks,
Marcus

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Marcus Ottosson
konstr...@gmail.com

[Colas Fiszman]

Hi Marcus,
I don't think there is a easy way to know which mesh is coming from which outPolyMesh attribute.

Why won't you use the AbcImport command?

From the code of the AbcImport Command "...Creating and managing an AlembicNode without the AbcImport command is not currently recommended..."

Greets,

Colas

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[Marcus Ottosson]

Thanks for the reply, Colas.

The reason is quite simply familiarity; most other things I connect to various things and they update procedurally. If I were able to treat Alembic this way, that would be great.

It's also because I was looking to use this as a means of updating an alembic path and have it's output updated, but it is my understanding that the node itself doesn't support having it's input file-path modified, which is just another cherry on the top gone missing..

I did notice the "connect" option on AlembicImport and was planning on having a look at this next.

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Marcus Ottosson
konstr...@gmail.com