Adding PoseDriver manager

yamahigashi · January 16, 2023, 3:06am

Hi there,
I am currently working on adding a feature to mimic the behavior of the PoseDirver in UnrealEngine using an existing RBF Manager, thanks to Rafael.

github.com

yamahigashi/mgear4/blob/feature/PoseDriver/release/scripts/mgear/rigbits/posedriver_io.py

#!/usr/bin/env python
"""
import weightNode_io

# Find all the weight Nodes
weightDrivers = pm.ls(type="weightDriver")

# any filePath
testPath = r"C:\\Users\rafael\Documents\core\scripts\testWeightNodes.json"

# Export listed weightDrivers
weightNode_io.exportNodes(testPath, weightDrivers)

# import all weight drivers from filePath
weightNode_io.importNodes(testPath)

Attributes:
    CTL_SUFFIX (str): ctl suffix shared from rbf_io
    DRIVEN_SUFFIX (str): suffix shared from rbf_io
    ENVELOPE_ATTR (str): name of the attr that disables rbf node(non enum)

This file has been truncated. show original

Added the ability to assemble a series of nodes by specifying the source and driven objects
Use of swing and twist decomposition of rotation as input for the weightDriver.
Use of parentOffsetMatrix as input for the driven node.
Added the feature to export poses as FBX for use as a PoseAsset in UnrealEngine.

Added dependencies:

compiled FBX python binding modules
RotationDriver

I am still in the midst of developing some additional features, but I would appreciate any feedback you may have.

Cheers!

Miquel · January 16, 2023, 6:53am

Hi @yamahigashi
This is great! Thanks for sharing it!

I was thinking to add also support to the MayaUERBFPlugin, but not sure when I will do that, not even ticket yet

The one used here https://github.com/chrisevans3d/poseWrangler and in metahumans

yamahigashi · January 16, 2023, 7:18am

Hi @Miquel, Great to hear that! I should just have googled before I started I may separate the repository, but I’ll continue to commit.

Miquel · January 17, 2023, 2:45am

@yamahigashi Just let you know that I am not adding/supporting more 3rd party nodes to mGear, so if you send a PR for posedriver_io.py we should have a logic to detect if the user has the solver installed.

I hope you understand, the maintenance of so many C++ nodes has become very difficult.
I have a ticket about the topic here: