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native maya push matrix collider
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| import maya.cmds as cmds | |
| import maya.mel as mel | |
| import maya.api.OpenMaya as om2 | |
| if __name__ == '__main__': | |
| from kata import core as kcore | |
| from kata import rig as krig | |
| else: | |
| from .. import core as kcore | |
| from .. import rig as krig | |
| def create(node:str=None, targets:str=None, **kwargs) -> str: | |
| """function that will create a push matrix connection. | |
| this is based on maya muscles node, but will clean up nodes connections. | |
| compared to default maya muscle, we are going to use target node world matrix attribute instead of creating a new transform. | |
| if target have only one children, the matrix connections will be made on children, otherwise will create a new transform. | |
| usually, we want to use this tool for lower lips and upper lips connections. | |
| /!\ maya muscles shape nodes will be parented under the node's transforms. | |
| Args: | |
| node: (str): - string node of the collider mesh / nurbs surface | |
| targets: (str, list): - string or list of node(s) to use as push matrix | |
| maya muscles nodes explained: | |
| Riham Toulan: (collar rig): - https://www.rihamtoulan.com/blog/2018/3/24/faking-collisions-with-joints-based-setup-8snd2 | |
| Perry Leijten: (skirt rig): - https://www.perryleijten.com/en/works/skirtColliderRD | |
| """ | |
| if not node or not isinstance(node, str) or not cmds.objExists(node): | |
| raise AttributeError('unable to create push matrix rig. no node given and/or given node might not be a <str> existing object.') | |
| if not kcore.mesh.is_mesh(node) and not kcore.surface.is_surface(node): | |
| raise AttributeError('unable to create push matrix rig on "%s". type needs to be a <mesh> or a <nurbsSurface>. current <%s> does not work.'% (node, kcore.utilities.get_type(node))) | |
| kcore.plugin.load('MayaMuscle.mll') | |
| muscle = cmds.ls(cmds.listHistory(node), type="cMuscleObject") | |
| if muscle: | |
| muscle = muscle[0] | |
| cmds.setAttr("%s.stickyStrength"% muscle, 0) | |
| cmds.setAttr("%s.slidingStrength"% muscle, 1) | |
| cmds.setAttr("%s.reverseNormals"% muscle, 0) | |
| cmds.setAttr("%s.relative"% muscle, 0) | |
| cmds.setAttr("%s.lockStickyWt"% muscle, 0) | |
| cmds.setAttr("%s.lockSlidingWt"% muscle, 0) | |
| cmds.setAttr("%s.affectSticky"% muscle, 0) | |
| cmds.setAttr("%s.affectSliding"% muscle, 0) | |
| cmds.setAttr("%s.userScaleX"% muscle, 0) | |
| cmds.setAttr("%s.userScaleY"% muscle, 0) | |
| cmds.setAttr("%s.userScaleZ"% muscle, 0) | |
| cmds.setAttr("%s.draw"% muscle, 1) | |
| cmds.setAttr("%s.shaded"% muscle, 0) | |
| cmds.setAttr("%s.highlight"% muscle, 0) | |
| cmds.setAttr("%s.highlightShaded"% muscle, 0) | |
| if not kcore.attributes.is_exists(node, "collisionWidth"): | |
| cmds.addAttr(node, longName="collisionWidth", niceName="Collision Width", attributeType="float", keyable=True, min=0, max=1, defaultValue=0) | |
| cmds.connectAttr("%s.collisionWidth"% node, "%s.fat"% muscle) | |
| kcore.attributes.animable(node, "collisionWidth") | |
| if not kcore.attributes.is_exists(node, "collisionLod"): | |
| cmds.addAttr(node, longName="collisionLod", niceName="Collision LOD", attributeType="enum", enumName="Full:Medium:Low", defaultValue=2) | |
| kcore.attributes.animable(node, "collisionLod") | |
| else: | |
| cmds.select(node) | |
| mel.eval("cMuscle_makeMuscle(0)") | |
| return create(node, targets) | |
| for target in kcore.utilities.as_list(targets): | |
| childrens = cmds.listRelatives(target, children=True, type="transform") or [] | |
| reconnection = True if len(childrens) == 1 else None | |
| cmds.select(target) | |
| mel.eval("cMuscle_rigKeepOutSel();") | |
| cmds.select(node, cmds.listConnections("%s.msgKeepOutXForm"% target, source=True)[0]) | |
| mel.eval("cMuscle_keepOutAddRemMuscle(1);") | |
| keep_out = cmds.listConnections("%s.msgKeepOutXForm"% target, source=True)[0] | |
| keep_out_shape = cmds.listRelatives(keep_out, shapes=True)[0] | |
| keep_out_transform = cmds.listConnections("%s.msgKeepOutDriven"% target, source=True)[0] | |
| cmds.parent(keep_out_shape, node, relative=True, shape=True) | |
| cmds.setAttr("%s.draw"% keep_out_shape, 0) | |
| cmds.connectAttr("%s.collisionLod"% node, "%s.quality"% keep_out_shape) | |
| cmds.connectAttr("%s.worldMatrix[0]"% target, "%s.worldMatrixAim"% keep_out_shape, force=True) | |
| if reconnection: | |
| try: | |
| cmds.connectAttr("%s.outTranslateLocal"% keep_out_shape, "%s.translate"% childrens[0]) | |
| for children in cmds.listRelatives(keep_out_transform, children=True, type="transform") or []: | |
| cmds.parent(children, target) | |
| cmds.delete(keep_out_transform) | |
| except: | |
| cmds.parent(keep_out_transform, target) | |
| else: | |
| cmds.parent(keep_out_transform, target) | |
| for attribute in ("msgKeepOut", "msgKeepOutDriven", "msgKeepOutXForm"): | |
| [cmds.disconnectAttr(connection, "%s.%s"% (target, attribute)) for connection in cmds.listConnections("%s.%s"% (target, attribute), source=True, plugs=True) or []] | |
| cmds.deleteAttr("%s.%s"% (target, attribute)) | |
| if not kcore.attributes.is_exists(target, "enableCollision"): | |
| cmds.addAttr(target, longName="enableCollision", niceName="Collision", attributeType="bool", keyable=True, defaultValue=True) | |
| kcore.attributes.animable(target, "enableCollision") | |
| cmds.connectAttr("%s.enableCollision"% target, "%s.enable"% keep_out_shape) | |
| for vector in ("X", "Y", "Z"): | |
| if not kcore.attributes.is_exists(target, "inDirection%s"% vector): | |
| cmds.addAttr(target, longName="inDirection%s"% vector, niceName="Collision Vector %s"% vector, attributeType="float", keyable=True, min=0, max=1, defaultValue=1 if vector == "Y" else 0) | |
| kcore.attributes.animable(target, "inDirection%s"% vector) | |
| cmds.connectAttr("%s.inDirection%s"% (target, vector), "%s.inDirection%s"% (keep_out_shape, vector)) | |
| cmds.delete(keep_out) | |
| return node | |
| if __name__ == '__main__': | |
| create(node="nurbsSphere1", targets=["locator1", "locator2", "locator3"]) |
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e70fdf7802167e3a1e44b685ad2e80fd.mp4