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Merge pull request #120 from GenEugene/chain-distribution-rig
Chain Distribution Rig
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| # GETOOLS is under the terms of the MIT License | ||
| # Copyright (c) 2018-2024 Eugene Gataulin (GenEugene). All Rights Reserved. | ||
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| # Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| # of this software and associated documentation files (the "Software"), to deal | ||
| # in the Software without restriction, including without limitation the rights | ||
| # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| # copies of the Software, and to permit persons to whom the Software is | ||
| # furnished to do so, subject to the following conditions: | ||
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| # The above copyright notice and this permission notice shall be included in all | ||
| # copies or substantial portions of the Software. | ||
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| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
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| # Author: Eugene Gataulin tek942@gmail.com https://www.linkedin.com/in/geneugene | ||
| # Source code: https://github.com/GenEugene/GETools or https://app.gumroad.com/geneugene | ||
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| import maya.cmds as cmds | ||
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| from ..utils import Selector | ||
| from ..utils import Text | ||
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| _locatorSize = 100 | ||
| _nameGroupMain = "grpChain_" | ||
| _nameLocatorPrefix = "loc_" | ||
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| def CreateRigVariant1(locatorSize=_locatorSize, *args): | ||
| # Check selected objects | ||
| selectedList = Selector.MultipleObjects(minimalCount = 1) | ||
| if (selectedList == None): | ||
| return | ||
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| timeCurrent = cmds.currentTime(query = True) | ||
| timeMin = cmds.playbackOptions(query = True, min = True) | ||
| timeMax = cmds.playbackOptions(query = True, max = True) | ||
| cmds.currentTime(timeMin, edit = True, update = True) | ||
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| ### Create a list of names from selected objects | ||
| selected = cmds.ls(selection = True) | ||
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| ### Create main group as a container for all new objects | ||
| mainGroup = cmds.group(name = Text.SetUniqueFromText(_nameGroupMain + selected[-1]), empty = True) | ||
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| ### Init empty lists for groups and locators | ||
| locators = [] | ||
| constraintsForBake = [] | ||
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| ### Count of selected objects | ||
| count = len(selected) | ||
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| ### Loop through each selected object, create groups, locators and parent them | ||
| for i in range(count): | ||
| ### Create locator # TODO nurbs circle as control instead of locator (optional) | ||
| locator = cmds.spaceLocator(name = Text.SetUniqueFromText(_nameLocatorPrefix + selected[i]))[0] | ||
| locators.append(locator) | ||
| cmds.setAttr(locator + "Shape.localScaleX", locatorSize) | ||
| cmds.setAttr(locator + "Shape.localScaleY", locatorSize) | ||
| cmds.setAttr(locator + "Shape.localScaleZ", locatorSize) | ||
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| ### Parent locator to group | ||
| cmds.parent(locator, mainGroup) | ||
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| ### Match group position and rotation | ||
| cmds.matchTransform(locator, selected[i], position = True, rotation = True, scale = False) | ||
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| ### Parent constraint groupFixed to original object | ||
| constraint = cmds.parentConstraint(selected[i], locator, maintainOffset = False) | ||
| constraintsForBake.append(constraint[0]) | ||
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| ### Bake animation to locators and delete constraints | ||
| cmds.bakeResults(locators, time = (timeMin, timeMax), simulation = True, minimizeRotation = True) | ||
| cmds.delete(constraintsForBake) | ||
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| ### Constrain | ||
| for i in range(count): | ||
| cmds.pointConstraint(selected[i], locators[i], maintainOffset = False) | ||
| cmds.orientConstraint(locators[i], selected[i], maintainOffset = False) | ||
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| if (i > 0 and i < count - 1): | ||
| cmds.orientConstraint(locators[0], locators[i], maintainOffset = True) | ||
| cmds.orientConstraint(locators[i + 1], locators[i], maintainOffset = True) | ||
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| ### Select last locator | ||
| cmds.select(locators[-1], replace = True) | ||
| cmds.currentTime(timeCurrent, edit = True, update = True) | ||
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| def CreateRigVariant2(locatorSize=_locatorSize, *args): | ||
| # Check selected objects | ||
| selectedList = Selector.MultipleObjects(minimalCount = 1) | ||
| if (selectedList == None): | ||
| return | ||
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| ### Objects names | ||
| nameGroupFixedPrefix = "grpFixed_" | ||
| nameGroupDistributedPrefix = "grpDistr_" | ||
| ### Attributes names | ||
| nameAttributeWeight = "distribution" | ||
| nameAttributeGlobal = "global" | ||
| ### Nodes names | ||
| nameMultiplyDivide = "gtMultiplyDivide" | ||
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| ### Create a list of names from selected objects | ||
| selected = cmds.ls(selection = True) | ||
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| ### Create main group as a container for all new objects | ||
| mainGroup = cmds.group(name = Text.SetUniqueFromText(_nameGroupMain + selected[-1]), empty = True) | ||
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| ### Init empty lists for groups and locators | ||
| groupsFixed = [] | ||
| groupsDistributed = [] | ||
| locators = [] | ||
| constraintsForBake = [] | ||
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| ### Count of selected objects | ||
| count = len(selected) | ||
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| ### Loop through each selected object, create groups, locators and parent them | ||
| for i in range(count): | ||
| ### Create fixed group | ||
| groupFixed = cmds.group(name = Text.SetUniqueFromText(nameGroupFixedPrefix + selected[i]), empty = True) | ||
| groupsFixed.append(groupFixed) | ||
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| ### Create distribution group | ||
| groupDistributed = cmds.group(name = Text.SetUniqueFromText(nameGroupDistributedPrefix + selected[i]), empty = True) | ||
| groupsDistributed.append(groupDistributed) | ||
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| ### Create locator # TODO use nurbs circle [circle -c 0 0 0 -nr 0 1 0 -sw 360 -r 1 -d 3 -ut 0 -tol 1e-05 -s 8 -ch 1; objectMoveCommand;] | ||
| locator = cmds.spaceLocator(name = Text.SetUniqueFromText(_nameLocatorPrefix + selected[i]))[0] | ||
| locators.append(locator) | ||
| cmds.setAttr(locator + "Shape.localScaleX", locatorSize) | ||
| cmds.setAttr(locator + "Shape.localScaleY", locatorSize) | ||
| cmds.setAttr(locator + "Shape.localScaleZ", locatorSize) | ||
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| ### Parent locator to group | ||
| cmds.parent(locator, groupDistributed) | ||
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| ### Parent group to corresponding hierarchy object | ||
| if i == 0: | ||
| cmds.parent(groupFixed, mainGroup) | ||
| else: | ||
| cmds.parent(groupFixed, locators[i - 1]) | ||
| cmds.parent(groupDistributed, groupFixed) | ||
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| ### Match group position and rotation | ||
| cmds.matchTransform(groupFixed, selected[i], position = True, rotation = True, scale = False) | ||
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| ### Parent constraint groupFixed to original object | ||
| constraint = cmds.parentConstraint(selected[i], groupFixed, maintainOffset = True) | ||
| constraintsForBake.append(constraint[0]) | ||
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| ### Bake animation to locators and delete constraints | ||
| timeMin = cmds.playbackOptions(query = True, min = True) | ||
| timeMax = cmds.playbackOptions(query = True, max = True) | ||
| cmds.bakeResults(groupsFixed, time = (timeMin, timeMax), simulation = True, minimizeRotation = True) | ||
| cmds.delete(constraintsForBake) | ||
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| ### Parent constraint original objects to locators | ||
| for i in range(count): | ||
| cmds.parentConstraint(locators[i], selected[i], maintainOffset = True) | ||
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| ### Show last locator Rotate Order and connect it to Distribution groups | ||
| cmds.setAttr(locators[-1] + ".rotateOrder", channelBox = True) | ||
| for i in range(count): | ||
| groupsDistributed[i] | ||
| cmds.connectAttr(locators[-1] + ".rotateOrder", groupsDistributed[i] + ".rotateOrder") | ||
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| ### Check if selected count less than 3 objects and break function | ||
| if (count < 3): | ||
| cmds.warning("You have less than 3 objects selected. Rotation distribution will not be created") | ||
| return | ||
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| ### Create weight attribute on last locator | ||
| cmds.addAttr(locators[-1], longName = nameAttributeWeight, attributeType = "double", defaultValue = count - 1) | ||
| cmds.setAttr(locators[-1] + "." + nameAttributeWeight, edit = True, keyable = True) | ||
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| ### Create MultiplyDivide node | ||
| nodeMultiplyDivide = cmds.createNode("multiplyDivide", name = Text.SetUniqueFromText(nameMultiplyDivide)) | ||
| cmds.setAttr(nodeMultiplyDivide + ".operation", 2) | ||
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| ### Connect rotation and weight to MultiplyDivide node | ||
| cmds.connectAttr(locators[-1] + ".rotate", nodeMultiplyDivide + ".input1") | ||
| cmds.connectAttr(locators[-1] + "." + nameAttributeWeight, nodeMultiplyDivide + ".input2X") | ||
| cmds.connectAttr(locators[-1] + "." + nameAttributeWeight, nodeMultiplyDivide + ".input2Y") | ||
| cmds.connectAttr(locators[-1] + "." + nameAttributeWeight, nodeMultiplyDivide + ".input2Z") | ||
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| ### Connect rotation distribution to other locators' groups | ||
| for i in range(1, count - 1): | ||
| cmds.connectAttr(nodeMultiplyDivide + ".output", groupsDistributed[i] + ".rotate") | ||
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| ### Add global attribute for last locator | ||
| cmds.addAttr(locators[-1], longName = nameAttributeGlobal, attributeType = "double", defaultValue = 0, minValue = 0, maxValue = 1) | ||
| cmds.setAttr(locators[-1] + "." + nameAttributeGlobal, edit = True, keyable = True) | ||
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| ### Create Orient Constraint for last locator | ||
| cmds.orientConstraint(mainGroup, groupsDistributed[-1], maintainOffset = True)[0] | ||
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| ### Show blend orient attribute by setting keys on constrained rotation attributes # I frankly don't know how to do it better | ||
| cmds.setKeyframe(groupsDistributed[-1] + ".rx") | ||
| cmds.setKeyframe(groupsDistributed[-1] + ".ry") | ||
| cmds.setKeyframe(groupsDistributed[-1] + ".rz") | ||
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| ### Connect Global attribute to blend orient attribute | ||
| cmds.connectAttr(locators[-1] + "." + nameAttributeGlobal, groupsDistributed[-1] + ".blendOrient1") | ||
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| ### Select last locator | ||
| cmds.select(locators[-1], replace = True) | ||
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