Chris Lesage chris-lesage

Intro Email:

[COMMENT: This document was originally written to introduce beginners and generalist co-workers who wanted to start using Python. It was meant to go much further than #9, but the project fizzled out.]

Write scripts that do the following, and we can talk about techniques, or ways to improve it. If they are too easy, you can also add options, or a GUI.

Please try to write nice clean code, and make comments. You will be re-using parts of your scripts in future challenges, so it is important for you to be able to read and re-use your code.

	"""Rigbits eye rigger tool"""

	import json
	import traceback
	from functools import partial

	import mgear
	import mgear.core.pyqt as gqt
	import pymel.core as pm
	from maya.app.general.mayaMixin import MayaQWidgetDockableMixin

	import pymel.core as pm

	### SNIPPET Reset Skin Cluster ###
	# This script can be used to reset geometry to its neutral rest pose
	# after joints have been moved. Use it when making adjustments to your rig/skeleton.
	# USAGE: 1. Select the geo 2. Run this script.

	# Limitation:
	# Sometimes depending on your history, Maya may give an error and fail to reset the geo.
	# Sometimes running it twice solves this... ¯\_( ツ )_/¯

	import pymel.core as pm

	'''
	Here are some examples of how to use the pin_to_surface.py script.
	'''

	# make a nurbsPlane
	oNurbs = pm.nurbsPlane(n='nurbsPlane1')

	# You can specify the nurbsSurface by string, PyNode transform or PyNode shape.

	import pymel.core as pm

	'''
	An Autodesk Maya PyMEL script that calculates a pole vector position
	based on 3 input PyNode objects. example: leg, knee, ankle bones.
	Chris Lesage [email protected]
	'''

	def calculate_pole_vector(p1, p2, p3, poleDistance=1):
	"""

	"""Rigbits eye rigger tool"""

	"""
	This is an alternative eye_rigger for mGear 3.2
	I eventually want to submit this as a PR, but I haven't fully tested it yet.
	It adds march_vertex() which helps discover the upper and lower edgeloops in the eye.

	This can help fix issues on the right side of the rig, where the eye can take weird shapes.
	It can also make the eye rig more stable on characters where the eye is at a tilted angle.
	Chris Lesage February 2020

	import maya.OpenMaya as OpenMaya
	import pymel.core as pm
	import maya.OpenMayaAnim as OpenMayaAnim
	import maya.cmds as cmds
	import maya.mel as mel


	class checkMaxSkinInfluences(object):
	''' This script takes a mesh with a skinCluster and checks it for N skin weights.
	If it has more than N, it selects the verts, so you can edit them.

	import mgear.shifter.custom_step as cstp

	'''
	This is a test mGear Shifter POST script that shows how to access the stepDict and all of its information.
	It's a WIP meant to also act as documentation.
	I'll continue to update it, as I discover more. And hopefully include some of this information in the official mGear docs.

	Chris Lesage - [email protected]
	Justin Pedersen - [email protected]
	Jascha Wohlkinger - [email protected]

	'''
	In Autodesk Maya, when you hit - and = to scale the manipulator gizmos, it multiplies the size.
	So if it is small, it takes a long time to grow. And if it is big, and move in huge increments.
	So I use addition and subtraction instead.
	This gives you much more precise control.
	Map the original ones to shift. _ and + to move in larger increments.

	Just a tiny little tweak that helps me size it exactly how I want.
	I use the radius of the rotation to measure pivot placement.
	'''

	import maya.cmds as cmds
	import maya.OpenMaya as omo
	# (Open Maya Old)

	def soft_selection_weights():
	''' create and return a list of the soft selection weights '''
	#TODO: Would be nice to rewrite this using the new API. Low priority.
	#TODO: Debug on multiple selections

	# temporary hack. Turn off symmetry when reading MRichSelection until I learn to use symmetry.

Chris Lesage chris-lesage

PYTHON CHALLENGES