from .node_container_common import * from bpy.types import Bone, NodeTree from .base_definitions import MantisNode, GraphError, FLOAT_EPSILON from .base_definitions import MantisSocketTemplate as SockTemplate def TellClasses(): return [ # special LinkInherit, # copy LinkCopyLocation, LinkCopyRotation, LinkCopyScale, LinkCopyTransforms, LinkTransformation, # limit LinkLimitLocation, LinkLimitRotation, LinkLimitScale, LinkLimitDistance, # tracking LinkStretchTo, LinkDampedTrack, LinkLockedTrack, LinkTrackTo, #misc LinkInheritConstraint, LinkArmature, # IK LinkInverseKinematics, LinkSplineIK, # Drivers LinkDrivenParameter, ] # Socket Templates we will reuse: # inputs: InputRelationshipTemplate : SockTemplate = SockTemplate( name="Input Relationship", is_input=True, bl_idname='RelationshipSocket', ) TargetTemplate : SockTemplate = SockTemplate( name="Target", is_input=True, bl_idname='xFormSocket', ) Head_Tail_Template : SockTemplate = SockTemplate( name="Head/Tail", is_input=True, bl_idname='FloatFactorSocket', default_value=1.0, blender_property='head_tail' ) UseBBoneTemplate : SockTemplate = SockTemplate( name="UseBBone", is_input=True, bl_idname='BooleanSocket', default_value=False, blender_property='use_bbone_shape' ) AxeSockTemplate : SockTemplate = SockTemplate( name="Axes", is_input=True, bl_idname='BooleanThreeTupleSocket', default_value=[True, True, True], blender_property=['use_x', 'use_y', 'use_z']) AxesInvertTemplate : SockTemplate = SockTemplate( name="Invert", is_input=True, bl_idname='BooleanThreeTupleSocket', default_value=[False, False, False], blender_property=['invert_x', 'invert_y', 'invert_z']) TargetSpaceTemplate : SockTemplate = SockTemplate( name="Target Space", is_input=True, bl_idname='TransformSpaceSocket', default_value="WORLD", blender_property='target_space' ) OwnerSpaceTemplate : SockTemplate = SockTemplate( name="Owner Space", is_input=True, bl_idname='TransformSpaceSocket', default_value="WORLD", blender_property='owner_space' ) InfluenceTemplate : SockTemplate = SockTemplate( name="Influence", is_input=True, bl_idname='FloatFactorSocket', default_value=1.0, blender_property='influence') EnableTemplate : SockTemplate = SockTemplate( name="Enable", is_input=True, bl_idname='EnableSocket', default_value=True, blender_property='mute') OffsetTemplate : SockTemplate = SockTemplate( name="Offset", bl_idname='BooleanSocket', is_input=True, default_value=False, blender_property='use_offset') # Limit Constraints follow a pattern and can use this generator LimitTemplateGenerator = lambda name_stub, axis : SockTemplate( name=name_stub+axis.upper(), is_input=True, bl_idname='BoolUpdateParentNode', default_value=False, blender_property=name_stub.lower().replace(' ', '_')+axis.lower()) LimitAxesSocketTemplates = [] # could generate these with loops, but this is easier to understand LimitAxesSocketTemplates.append(UseMaxXTemplates := LimitTemplateGenerator("Use Max ", "X")) LimitAxesSocketTemplates.append(MaxXTemplates := LimitTemplateGenerator("Max ", "X")) LimitAxesSocketTemplates.append(UseMaxYTemplates := LimitTemplateGenerator("Use Max ", "Y")) LimitAxesSocketTemplates.append(MaxYTemplates := LimitTemplateGenerator("Max ", "Y")) LimitAxesSocketTemplates.append(UseMaxZTemplates := LimitTemplateGenerator("Use Max ", "Z")) LimitAxesSocketTemplates.append(MinZTemplates := LimitTemplateGenerator("Min ", "Z")) LimitAxesSocketTemplates.append(UseMinXTemplates := LimitTemplateGenerator("Use Min ", "X")) LimitAxesSocketTemplates.append(MinXTemplates := LimitTemplateGenerator("Min ", "X")) LimitAxesSocketTemplates.append(UseMinYTemplates := LimitTemplateGenerator("Use Min ", "Y")) LimitAxesSocketTemplates.append(MinYTemplates := LimitTemplateGenerator("Min ", "Y")) LimitAxesSocketTemplates.append(UseMinZTemplates := LimitTemplateGenerator("Use Min ", "Z")) LimitAxesSocketTemplates.append(MinZTemplates := LimitTemplateGenerator("Min ", "Z")) # AffectTransformTemplate : SockTemplate = SockTemplate( name="Affect Transform", bl_idname='BooleanSocket', is_input=True, default_value=False, blender_property='use_transform_limit') # outputs: OutputRelationshipTemplate : SockTemplate = SockTemplate( name="Output Relationship", is_input=False, bl_idname='RelationshipSocket', ) # set the name if it is available, otherwise just use the constraint's nice name set_constraint_name = lambda nc : nc.evaluate_input("Name") if nc.evaluate_input("Name") else nc.__class__.__name__ class MantisLinkNode(MantisNode): def __init__(self, signature : tuple, base_tree : NodeTree, socket_templates : list[SockTemplate]=[]): super().__init__(signature, base_tree, socket_templates) self.node_type = 'LINK' self.prepared = True def evaluate_input(self, input_name, index=0): # should catch 'Target', 'Pole Target' and ArmatureConstraint targets, too if ('Target' in input_name) and input_name not in ["Target Space", "Use Target Z"]: socket = self.inputs.get(input_name) if socket.is_linked: return socket.links[0].from_node return None else: return super().evaluate_input(input_name) def gen_property_socket_map(self) -> dict: props_sockets = super().gen_property_socket_map() if (os := self.inputs["Owner Space"]).is_connected and os.links[0].from_node.node_type == 'XFORM': del props_sockets['owner_space'] if ts := self.inputs.get("Target_Space") and ts.is_connected and ts.links[0].from_node.node_type == 'XFORM': del props_sockets['target_space'] return props_sockets def set_custom_space(self): c = self.bObject if (os := self.inputs["Owner Space"]).is_connected and os.links[0].from_node.node_type == 'XFORM': c.owner_space='CUSTOM' xf = self.inputs["Owner Space"].links[0].from_node.bGetObject(mode="OBJECT") if isinstance(xf, Bone): c.space_object=self.inputs["Owner Space"].links[0].from_node.bGetParentArmature(); c.space_subtarget=xf.name else: c.space_object=xf if ts := self.inputs.get("Target_Space") and ts.is_connected and ts.links[0].from_node.node_type == 'XFORM': c.owner_space='CUSTOM' xf = self.inputs["Target_Space Space"].links[0].from_node.bGetObject(mode="OBJECT") if isinstance(xf, Bone): c.space_object=self.inputs["Target_Space Space"].links[0].from_node.bGetParentArmature(); c.space_subtarget=xf.name else: c.space_object=xf #*#-------------------------------#++#-------------------------------#*# # L I N K N O D E S #*#-------------------------------#++#-------------------------------#*# def GetxForm(nc): trace = trace_single_line_up(nc, "Output Relationship") for node in trace[0]: if (node.node_type == 'XFORM'): return node raise GraphError("%s is not connected to a downstream xForm" % nc) LinkInheritSockets = [ # Name is_input bl_idname SockTemplate(name="Parent", is_input=True, bl_idname='xFormSocket',), SockTemplate(name="Inherit Rotation", is_input=True, bl_idname='BooleanSocket',), SockTemplate(name="Inherit Scale", is_input=True, bl_idname='EnumInheritScale',), SockTemplate(name="Connected", is_input=True, bl_idname='BooleanSocket',), SockTemplate(name="Inheritance", is_input=False, bl_idname='RelationshipSocket',), ] class LinkInherit(MantisLinkNode): '''A node representing inheritance''' def __init__(self, signature, base_tree): super().__init__(signature, base_tree, LinkInheritSockets) self.init_parameters() self.set_traverse([('Parent', 'Inheritance')]) self.executed = True def GetxForm(self): # DUPLICATED, TODO fix this # I think this is only run in display update. trace = trace_single_line_up(self, "Inheritance") for node in trace[0]: if (node.node_type == 'XFORM'): return node raise GraphError("%s is not connected to a downstream xForm" % self) LinkCopyLocationSockets = [ InputRelationshipTemplate, Head_Tail_Template, UseBBoneTemplate, AxeSockTemplate, AxesInvertTemplate, TargetSpaceTemplate, OwnerSpaceTemplate, OffsetTemplate, InfluenceTemplate, TargetTemplate, EnableTemplate, OutputRelationshipTemplate, ] class LinkCopyLocation(MantisLinkNode): '''A node representing Copy Location''' def __init__(self, signature : tuple, base_tree : NodeTree,): super().__init__(signature, base_tree, LinkCopyLocationSockets) additional_parameters = { "Name":None } self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) c = self.GetxForm().bGetObject().constraints.new('COPY_LOCATION') self.get_target_and_subtarget(c) print(wrapGreen("Creating ")+wrapWhite("Copy Location")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c self.set_custom_space() props_sockets = self.gen_property_socket_map() evaluate_sockets(self, c, props_sockets) self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) LinkCopyRotationSockets = [ InputRelationshipTemplate, SockTemplate(name='RotationOrder', bl_idname='RotationOrderSocket', is_input=True, default_value='AUTO', blender_property='euler_order'), SockTemplate(name='Rotation Mix', bl_idname='EnumRotationMix', is_input=True, default_value='REPLACE', blender_property='mix_mode'), AxeSockTemplate, AxesInvertTemplate, TargetSpaceTemplate, OwnerSpaceTemplate, InfluenceTemplate, TargetTemplate, EnableTemplate, OutputRelationshipTemplate, ] class LinkCopyRotation(MantisLinkNode): '''A node representing Copy Rotation''' def __init__(self, signature, base_tree): super().__init__(signature, base_tree, LinkCopyRotationSockets) additional_parameters = { "Name":None } self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) c = self.GetxForm().bGetObject().constraints.new('COPY_ROTATION') self.get_target_and_subtarget(c) print(wrapGreen("Creating ")+wrapWhite("Copy Rotation")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) rotation_order = self.evaluate_input("RotationOrder") if ((rotation_order == 'QUATERNION') or (rotation_order == 'AXIS_ANGLE')): c.euler_order = 'AUTO' else: try: c.euler_order = rotation_order except TypeError: # it's a driver or incorrect c.euler_order = 'AUTO' if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c self.set_custom_space() props_sockets = self.gen_property_socket_map() evaluate_sockets(self, c, props_sockets) self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) LinkCopyScaleSockets = [ InputRelationshipTemplate, OffsetTemplate, SockTemplate(name='Average', bl_idname = 'BooleanSocket', is_input=True, default_value=False, blender_property='use_make_uniform'), SockTemplate(name='Additive', bl_idname = 'BooleanSocket', is_input=True, default_value=False, blender_property='use_add'), AxeSockTemplate, TargetSpaceTemplate, OwnerSpaceTemplate, InfluenceTemplate, TargetTemplate, EnableTemplate, OutputRelationshipTemplate, ] class LinkCopyScale(MantisLinkNode): '''A node representing Copy Scale''' def __init__(self, signature, base_tree): super().__init__(signature, base_tree, LinkCopyScaleSockets) additional_parameters = { "Name":None } self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) c = self.GetxForm().bGetObject().constraints.new('COPY_SCALE') self.get_target_and_subtarget(c) print(wrapGreen("Creating ")+wrapWhite("Copy Scale")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c if self.inputs["Owner Space"].is_connected and self.inputs["Owner Space"].links[0].from_node.node_type == 'XFORM': c.owner_space='CUSTOM' xf = self.inputs["Owner Space"].links[0].from_node.bGetObject(mode="OBJECT") if isinstance(xf, Bone): c.space_object=self.inputs["Owner Space"].links[0].from_node.bGetParentArmature(); c.space_subtarget=xf.name else: c.space_object=xf if self.inputs["Target Space"].is_connected and self.inputs["Target Space"].links[0].from_node.node_type == 'XFORM': c.target_space='CUSTOM' xf = self.inputs["Target Space"].links[0].from_node.bGetObject(mode="OBJECT") if isinstance(xf, Bone): c.space_object=self.inputs["Owner Space"].links[0].from_node.bGetParentArmature(); c.space_subtarget=xf.name else: c.space_object=xf props_sockets = self.gen_property_socket_map() evaluate_sockets(self, c, props_sockets) self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) LinkCopyTransformsSockets = [ InputRelationshipTemplate, Head_Tail_Template, UseBBoneTemplate, SockTemplate(name='Mix', bl_idname = 'EnumRotationMixCopyTransforms', is_input=True, default_value="REPLACE", blender_property='mix_mode'), TargetSpaceTemplate, OwnerSpaceTemplate, InfluenceTemplate, TargetTemplate, EnableTemplate, OutputRelationshipTemplate, ] class LinkCopyTransforms(MantisLinkNode): '''A node representing Copy Transfoms''' def __init__(self, signature, base_tree): super().__init__(signature, base_tree, LinkCopyTransformsSockets) additional_parameters = { "Name":None } self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) c = self.GetxForm().bGetObject().constraints.new('COPY_TRANSFORMS') self.get_target_and_subtarget(c) print(wrapGreen("Creating ")+wrapWhite("Copy Transforms")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c self.set_custom_space() props_sockets = self.gen_property_socket_map() evaluate_sockets(self, c, props_sockets) self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) transformation_props_sockets = { 'use_motion_extrapolate' : ("Extrapolate", False), 'map_from' : ("Map From", 'LOCATION'), 'from_rotation_mode' : ("Rotation Mode", 'AUTO'), 'from_min_x' : ("X Min From", 0.0), 'from_max_x' : ("X Max From", 0.0), 'from_min_y' : ("Y Min From", 0.0), 'from_max_y' : ("Y Max From", 0.0), 'from_min_z' : ("Z Min From", 0.0), 'from_max_z' : ("Z Max From", 0.0), 'from_min_x_rot' : ("X Min From", 0.0), 'from_max_x_rot' : ("X Max From", 0.0), 'from_min_y_rot' : ("Y Min From", 0.0), 'from_max_y_rot' : ("Y Max From", 0.0), 'from_min_z_rot' : ("Z Min From", 0.0), 'from_max_z_rot' : ("Z Max From", 0.0), 'from_min_x_scale' : ("X Min From", 0.0), 'from_max_x_scale' : ("X Max From", 0.0), 'from_min_y_scale' : ("Y Min From", 0.0), 'from_max_y_scale' : ("Y Max From", 0.0), 'from_min_z_scale' : ("Z Min From", 0.0), 'from_max_z_scale' : ("Z Max From", 0.0), 'map_to' : ("Map To", "LOCATION"), 'map_to_x_from' : ("X Source Axis", "X"), 'map_to_y_from' : ("Y Source Axis", "Y"), 'map_to_z_from' : ("Z Source Axis", "Z"), 'to_min_x' : ("X Min To", 0.0), 'to_max_x' : ("X Max To", 0.0), 'to_min_y' : ("Y Min To", 0.0), 'to_max_y' : ("Y Max To", 0.0), 'to_min_z' : ("Z Min To", 0.0), 'to_max_z' : ("Z Max To", 0.0), 'to_min_x_rot' : ("X Min To", 0.0), 'to_max_x_rot' : ("X Max To", 0.0), 'to_min_y_rot' : ("Y Min To", 0.0), 'to_max_y_rot' : ("Y Max To", 0.0), 'to_min_z_rot' : ("Z Min To", 0.0), 'to_max_z_rot' : ("Z Max To", 0.0), 'to_min_x_scale' : ("X Min To", 0.0), 'to_max_x_scale' : ("X Max To", 0.0), 'to_min_y_scale' : ("Y Min To", 0.0), 'to_max_y_scale' : ("Y Max To", 0.0), 'to_min_z_scale' : ("Z Min To", 0.0), 'to_max_z_scale' : ("Z Max To", 0.0), 'to_euler_order' : ("Rotation Mode", "AUTO"), 'mix_mode' : ("Mix Mode (Translation)", "ADD"), 'mix_mode_rot' : ("Mix Mode (Rotation)", "ADD"), 'mix_mode_scale' : ("Mix Mode (Scale)", "MULTIPLY"), 'owner_space' : ("Owner Space", 'WORLD'), 'target_space' : ("Target Space", 'WORLD'), 'influence' : ("Influence", 1), 'mute' : ("Enable", False), } class LinkTransformation(MantisLinkNode): '''A node representing Copy Transfoms''' def __init__(self, signature, base_tree): super().__init__(signature, base_tree) inputs = [ "Input Relationship" , "Target Space" , "Owner Space" , "Influence" , "Target" , "Enable" , "Extrapolate" , "Map From" , "Rotation Mode" , "X Min From" , "X Max From" , "Y Min From" , "Y Max From" , "Z Min From" , "Z Max From" , "Map To" , "X Source Axis" , "X Min To" , "X Max To" , "Y Source Axis" , "Y Min To" , "Y Max To" , "Z Source Axis" , "Z Min To" , "Z Max To" , "Mix Mode (Translation)" , "Mix Mode (Rotation)" , "Mix Mode (Scale)" , ] additional_parameters = { "Name":None } self.inputs.init_sockets(inputs) self.outputs.init_sockets(["Output Relationship"]) self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) c = self.GetxForm().bGetObject().constraints.new('TRANSFORM') self.get_target_and_subtarget(c) print(wrapGreen("Creating ")+wrapWhite("Transformation")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c custom_space_owner, custom_space_target = False, False if self.inputs["Owner Space"].is_connected and self.inputs["Owner Space"].links[0].from_node.node_type == 'XFORM': custom_space_owner=True c.owner_space='CUSTOM' xf = self.inputs["Owner Space"].links[0].from_node.bGetObject(mode="OBJECT") if isinstance(xf, Bone): c.space_object=self.inputs["Owner Space"].links[0].from_node.bGetParentArmature(); c.space_subtarget=xf.name else: c.space_object=xf if self.inputs["Target Space"].is_connected and self.inputs["Target Space"].links[0].from_node.node_type == 'XFORM': custom_space_target=True c.target_space='CUSTOM' xf = self.inputs["Target Space"].links[0].from_node.bGetObject(mode="OBJECT") if isinstance(xf, Bone): c.space_object=self.inputs["Target Space"].links[0].from_node.bGetParentArmature(); c.space_subtarget=xf.name else: c.space_object=xf props_sockets = transformation_props_sockets.copy() if custom_space_owner: del props_sockets['owner_space'] if custom_space_target: del props_sockets['target_space'] # evaluate_sockets(self, c, props_sockets) self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) LinkLimitLocationSockets = [ InputRelationshipTemplate, *LimitAxesSocketTemplates, # we generated these ahead of time in a list AffectTransformTemplate, OwnerSpaceTemplate, InfluenceTemplate, EnableTemplate, OutputRelationshipTemplate, ] class LinkLimitLocation(MantisLinkNode): def __init__(self, signature, base_tree): super().__init__(signature, base_tree, LinkLimitLocationSockets) self.init_parameters(additional_parameters={ "Name":None }) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) c = self.GetxForm().bGetObject().constraints.new('LIMIT_LOCATION') # print(wrapGreen("Creating ")+wrapWhite("Limit Location")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c self.set_custom_space() props_sockets = self.gen_property_socket_map() # evaluate_sockets(self, c, props_sockets) self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) class LinkLimitRotation(MantisLinkNode): def __init__(self, signature, base_tree): super().__init__(signature, base_tree) inputs = [ "Input Relationship" , "Use X" , "Use Y" , "Use Z" , "Max X" , "Max Y" , "Max Z" , "Min X" , "Min Y" , "Min Z" , "Affect Transform" , "Owner Space" , "Influence" , "Enable" , ] additional_parameters = { "Name":None } self.inputs.init_sockets(inputs) self.outputs.init_sockets(["Output Relationship"]) self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) c = self.GetxForm().bGetObject().constraints.new('LIMIT_ROTATION') print(wrapGreen("Creating ")+wrapWhite("Limit Rotation")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c custom_space_owner = False if self.inputs["Owner Space"].is_connected and self.inputs["Owner Space"].links[0].from_node.node_type == 'XFORM': custom_space_owner=True c.owner_space='CUSTOM' xf = self.inputs["Owner Space"].links[0].from_node.bGetObject(mode="OBJECT") if isinstance(xf, Bone): c.space_object=self.inputs["Owner Space"].links[0].from_node.bGetParentArmature(); c.space_subtarget=xf.name else: c.space_object=xf props_sockets = { 'use_transform_limit' : ("Affect Transform", False), 'use_limit_x' : ("Use X", False), 'use_limit_y' : ("Use Y", False), 'use_limit_z' : ("Use Z", False), 'max_x' : ("Max X", 0), 'max_y' : ("Max Y", 0), 'max_z' : ("Max Z", 0), 'min_x' : ("Min X", 0), 'min_y' : ("Min Y", 0), 'min_z' : ("Min Z", 0), 'owner_space' : ("Owner Space", 'WORLD'), 'influence' : ("Influence", 1), 'mute' : ("Enable", True), } if custom_space_owner: del props_sockets['owner_space'] # evaluate_sockets(self, c, props_sockets) self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) class LinkLimitScale(MantisLinkNode): def __init__(self, signature, base_tree): super().__init__(signature, base_tree) inputs = [ "Input Relationship" , "Use Max X" , "Max X" , "Use Max Y" , "Max Y" , "Use Max Z" , "Max Z" , "Use Min X" , "Min X" , "Use Min Y" , "Min Y" , "Use Min Z" , "Min Z" , "Affect Transform" , "Owner Space" , "Influence" , "Enable" , ] additional_parameters = { "Name":None } self.inputs.init_sockets(inputs) self.outputs.init_sockets(["Output Relationship"]) self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) c = self.GetxForm().bGetObject().constraints.new('LIMIT_SCALE') print(wrapGreen("Creating ")+wrapWhite("Limit Scale")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c custom_space_owner = False if self.inputs["Owner Space"].is_connected and self.inputs["Owner Space"].links[0].from_node.node_type == 'XFORM': custom_space_owner=True c.owner_space='CUSTOM' xf = self.inputs["Owner Space"].links[0].from_node.bGetObject(mode="OBJECT") if isinstance(xf, Bone): c.space_object=self.inputs["Owner Space"].links[0].from_node.bGetParentArmature(); c.space_subtarget=xf.name else: c.space_object=xf props_sockets = { 'use_transform_limit' : ("Affect Transform", False), 'use_max_x' : ("Use Max X", False), 'use_max_y' : ("Use Max Y", False), 'use_max_z' : ("Use Max Z", False), 'use_min_x' : ("Use Min X", False), 'use_min_y' : ("Use Min Y", False), 'use_min_z' : ("Use Min Z", False), 'max_x' : ("Max X", 0), 'max_y' : ("Max Y", 0), 'max_z' : ("Max Z", 0), 'min_x' : ("Min X", 0), 'min_y' : ("Min Y", 0), 'min_z' : ("Min Z", 0), 'owner_space' : ("Owner Space", 'WORLD'), 'influence' : ("Influence", 1), 'mute' : ("Enable", True), } if custom_space_owner: del props_sockets['owner_space'] # evaluate_sockets(self, c, props_sockets) self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) class LinkLimitDistance(MantisLinkNode): def __init__(self, signature, base_tree): super().__init__(signature, base_tree) inputs = [ "Input Relationship" , "Head/Tail" , "UseBBone" , "Distance" , "Clamp Region" , "Affect Transform" , "Owner Space" , "Target Space" , "Influence" , "Target" , "Enable" , ] additional_parameters = { "Name":None } self.inputs.init_sockets(inputs) self.outputs.init_sockets(["Output Relationship"]) self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) print(wrapGreen("Creating ")+wrapWhite("Limit Distance")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) c = self.GetxForm().bGetObject().constraints.new('LIMIT_DISTANCE') self.get_target_and_subtarget(c) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c # # TODO: set distance automagically # IMPORTANT TODO BUG custom_space_owner, custom_space_target = False, False if self.inputs["Owner Space"].is_connected and self.inputs["Owner Space"].links[0].from_node.node_type == 'XFORM': custom_space_owner=True c.owner_space='CUSTOM' xf = self.inputs["Owner Space"].links[0].from_node.bGetObject(mode="OBJECT") if isinstance(xf, Bone): c.space_object=self.inputs["Owner Space"].links[0].from_node.bGetParentArmature(); c.space_subtarget=xf.name else: c.space_object=xf if self.inputs["Target Space"].is_connected and self.inputs["Target Space"].links[0].from_node.node_type == 'XFORM': custom_space_target=True c.target_space='CUSTOM' xf = self.inputs["Target Space"].links[0].from_node.bGetObject(mode="OBJECT") if isinstance(xf, Bone): c.space_object=self.inputs["Target Space"].links[0].from_node.bGetParentArmature(); c.space_subtarget=xf.name else: c.space_object=xf props_sockets = { 'distance' : ("Distance", 0), 'head_tail' : ("Head/Tail", 0), 'limit_mode' : ("Clamp Region", "LIMITDIST_INSIDE"), 'use_bbone_shape' : ("UseBBone", False), 'use_transform_limit' : ("Affect Transform", 1), 'owner_space' : ("Owner Space", 1), 'target_space' : ("Target Space", 1), 'influence' : ("Influence", 1), 'mute' : ("Enable", True), } if custom_space_owner: del props_sockets['owner_space'] if custom_space_target: del props_sockets['target_space'] # evaluate_sockets(self, c, props_sockets) self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) # Tracking class LinkStretchTo(MantisLinkNode): def __init__(self, signature, base_tree): super().__init__(signature, base_tree) inputs = [ "Input Relationship" , "Head/Tail" , "UseBBone" , "Original Length" , "Volume Variation" , "Use Volume Min" , "Volume Min" , "Use Volume Max" , "Volume Max" , "Smooth" , "Maintain Volume" , "Rotation" , "Influence" , "Target" , "Enable" , ] additional_parameters = { "Name":None } self.inputs.init_sockets(inputs) self.outputs.init_sockets(["Output Relationship"]) self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) print(wrapGreen("Creating ")+wrapWhite("Stretch-To")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) c = self.GetxForm().bGetObject().constraints.new('STRETCH_TO') self.get_target_and_subtarget(c) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c props_sockets = { 'head_tail' : ("Head/Tail", 0), 'use_bbone_shape' : ("UseBBone", False), 'bulge' : ("Volume Variation", 0), 'use_bulge_min' : ("Use Volume Min", False), 'bulge_min' : ("Volume Min", 0), 'use_bulge_max' : ("Use Volume Max", False), 'bulge_max' : ("Volume Max", 0), 'bulge_smooth' : ("Smooth", 0), 'volume' : ("Maintain Volume", 'VOLUME_XZX'), 'keep_axis' : ("Rotation", 'PLANE_X'), 'rest_length' : ("Original Length", self.GetxForm().bGetObject().bone.length), 'influence' : ("Influence", 1), 'mute' : ("Enable", True), } evaluate_sockets(self, c, props_sockets) if (self.evaluate_input("Original Length") == 0): # this is meant to be set automatically. c.rest_length = self.GetxForm().bGetObject().bone.length self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) class LinkDampedTrack(MantisLinkNode): def __init__(self, signature, base_tree): super().__init__(signature, base_tree) inputs = [ "Input Relationship" , "Head/Tail" , "UseBBone" , "Track Axis" , "Influence" , "Target" , "Enable" , ] additional_parameters = { "Name":None } self.inputs.init_sockets(inputs) self.outputs.init_sockets(["Output Relationship"]) self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) print(wrapGreen("Creating ")+wrapWhite("Damped Track")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) c = self.GetxForm().bGetObject().constraints.new('DAMPED_TRACK') self.get_target_and_subtarget(c) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c props_sockets = { 'head_tail' : ("Head/Tail", 0), 'use_bbone_shape' : ("UseBBone", False), 'track_axis' : ("Track Axis", 'TRACK_Y'), 'influence' : ("Influence", 1), 'mute' : ("Enable", True), } evaluate_sockets(self, c, props_sockets) self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) class LinkLockedTrack(MantisLinkNode): def __init__(self, signature, base_tree): super().__init__(signature, base_tree) inputs = [ "Input Relationship" , "Head/Tail" , "UseBBone" , "Track Axis" , "Lock Axis" , "Influence" , "Target" , "Enable" , ] additional_parameters = { "Name":None } self.inputs.init_sockets(inputs) self.outputs.init_sockets(["Output Relationship"]) self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) print(wrapGreen("Creating ")+wrapWhite("Locked Track")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) c = self.GetxForm().bGetObject().constraints.new('LOCKED_TRACK') self.get_target_and_subtarget(c) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c props_sockets = { 'head_tail' : ("Head/Tail", 0), 'use_bbone_shape' : ("UseBBone", False), 'track_axis' : ("Track Axis", 'TRACK_Y'), 'lock_axis' : ("Lock Axis", 'UP_X'), 'influence' : ("Influence", 1), 'mute' : ("Enable", True), } evaluate_sockets(self, c, props_sockets) self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) class LinkTrackTo(MantisLinkNode): def __init__(self, signature, base_tree): super().__init__(signature, base_tree) inputs = [ "Input Relationship" , "Head/Tail" , "UseBBone" , "Track Axis" , "Up Axis" , "Use Target Z" , "Influence" , "Target" , "Enable" , ] additional_parameters = { "Name":None } self.inputs.init_sockets(inputs) self.outputs.init_sockets(["Output Relationship"]) self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) print(wrapGreen("Creating ")+wrapWhite("Track-To")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) c = self.GetxForm().bGetObject().constraints.new('TRACK_TO') self.get_target_and_subtarget(c) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c props_sockets = { 'head_tail' : ("Head/Tail", 0), 'use_bbone_shape' : ("UseBBone", False), 'track_axis' : ("Track Axis", "TRACK_Y"), 'up_axis' : ("Up Axis", "UP_Z"), 'use_target_z' : ("Use Target Z", False), 'influence' : ("Influence", 1), 'mute' : ("Enable", True), } evaluate_sockets(self, c, props_sockets) self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) # relationships & misc. class LinkInheritConstraint(MantisLinkNode): def __init__(self, signature, base_tree): super().__init__(signature, base_tree) inputs = [ "Input Relationship" , "Location" , "Rotation" , "Scale" , "Influence" , "Target" , "Enable" , ] additional_parameters = { "Name":None } self.inputs.init_sockets(inputs) self.outputs.init_sockets(["Output Relationship"]) self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, context): prepare_parameters(self) print(wrapGreen("Creating ")+wrapWhite("Child-Of")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) c = self.GetxForm().bGetObject().constraints.new('CHILD_OF') self.get_target_and_subtarget(c) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c props_sockets = { 'use_location_x' : (("Location", 0) , 1), 'use_location_y' : (("Location", 1) , 1), 'use_location_z' : (("Location", 2) , 1), 'use_rotation_x' : (("Rotation", 0) , 1), 'use_rotation_y' : (("Rotation", 1) , 1), 'use_rotation_z' : (("Rotation", 2) , 1), 'use_scale_x' : (("Scale" , 0) , 1), 'use_scale_y' : (("Scale" , 1) , 1), 'use_scale_z' : (("Scale" , 2) , 1), 'influence' : ( "Influence" , 1), 'mute' : ("Enable", True), } evaluate_sockets(self, c, props_sockets) c.set_inverse_pending self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) class LinkInverseKinematics(MantisLinkNode): def __init__(self, signature, base_tree): super().__init__(signature, base_tree) inputs = [ "Input Relationship" , "Chain Length" , "Use Tail" , "Stretch" , "Position" , "Rotation" , "Influence" , "Target" , "Pole Target" , "Enable" , ] additional_parameters = { "Name":None } self.inputs.init_sockets(inputs) self.outputs.init_sockets(["Output Relationship"]) self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def get_base_ik_bone(self, ik_bone): chain_length : int = (self.evaluate_input("Chain Length")) if not isinstance(chain_length, (int, float)): raise GraphError(f"Chain Length must be an integer number in {self}::Chain Length") if chain_length == 0: chain_length = int("inf") base_ik_bone = ik_bone; i=1 while (i None: from math import pi def wrap(min : float, max : float, value: float) -> float: range = max-min; remainder = value % range if remainder > max: return min + remainder-max else: return remainder self.bObject.pole_angle = wrap(-pi, pi, angle) def calc_pole_angle_pre(self, c, ik_bone): """ This function gets us most of the way to a correct IK pole angle. Unfortunately, due to the unpredictable nature of the iterative IK calculation, I can't figure out an exact solution. So we do a bisect search in calc_pole_angle_post(). """ # TODO: instead of these checks, convert all to armature local space. But this is tedious. if not c.target: raise GraphError(f"IK Constraint {self} must have target.") elif c.target.type != "ARMATURE": raise NotImplementedError(f"Currently, IK Constraint Target for {self} must be a bone within the same armature.") if c.pole_target.type != "ARMATURE": raise NotImplementedError(f"Currently, IK Constraint Pole Target for {self} must be a bone within the same armature.") ik_handle = c.target.pose.bones[c.subtarget] if ik_handle.id_data != ik_bone.id_data: raise NotImplementedError(f"Currently, IK Constraint Target for {self} must be a bone within the same armature.") ik_pole = c.pole_target.pose.bones[c.pole_subtarget] if ik_pole.id_data != ik_bone.id_data: raise NotImplementedError(f"Currently,IK Constraint Pole Target for {self} must be a bone within the same armature.") base_ik_bone = self.get_base_ik_bone(ik_bone) start_effector = base_ik_bone.bone.head_local end_effector = ik_handle.bone.head_local pole_location = ik_pole.bone.head_local # this is the X-Axis of the bone's rest-pose, added to its bone knee_location = base_ik_bone.bone.matrix_local.col[0].xyz+start_effector ik_axis = (end_effector-start_effector).normalized() from .utilities import project_point_to_plane pole_planar_projection = project_point_to_plane(pole_location, start_effector, ik_axis) # this planar projection is necessary because the IK axis is different than the base_bone's y axis planar_projection = project_point_to_plane(knee_location, start_effector, ik_axis) knee_direction =(planar_projection - start_effector).normalized() pole_direction =(pole_planar_projection - start_effector).normalized() return knee_direction.angle(pole_direction) def calc_pole_angle_post(self, c, ik_bone, context): """ This function should give us a completely accurate result for IK. """ from time import time start_time=time() def signed_angle(vector_u, vector_v, normal): # it seems that this fails if the vectors are exactly aligned under certain circumstances. angle = vector_u.angle(vector_v, 0.0) # So we use a fallback of 0 # Normal specifies orientation if angle != 0 and vector_u.cross(vector_v).angle(normal) < 1: angle = -angle return angle # we have already checked for valid data. ik_handle = c.target.pose.bones[c.subtarget] base_ik_bone = self.get_base_ik_bone(ik_bone) start_effector = base_ik_bone.bone.head_local angle = c.pole_angle dg = context.view_layer.depsgraph dg.update() ik_axis = (ik_handle.bone.head_local-start_effector).normalized() center_point = start_effector +(ik_axis*base_ik_bone.bone.length) knee_direction = base_ik_bone.bone.tail_local - center_point current_knee_direction = base_ik_bone.tail-center_point error=signed_angle(current_knee_direction, knee_direction, ik_axis) if error == 0: prGreen("No Fine-tuning needed."); return # Flip it if needed dot_before=current_knee_direction.dot(knee_direction) if dot_before < 0 and angle!=0: # then it is not aligned and we should check the inverse angle = -angle; c.pole_angle=angle dg.update() current_knee_direction = base_ik_bone.tail-center_point dot_after=current_knee_direction.dot(knee_direction) if dot_after < dot_before: # they are somehow less aligned prPurple("Mantis has gone down an unexpected code path. Please report this as a bug.") angle = -angle; self.set_pole_angle(angle) dg.update() # now we can do a bisect search to find the best value. error_threshhold = FLOAT_EPSILON max_iterations=600 error=signed_angle(current_knee_direction, knee_direction, ik_axis) if error == 0: prGreen("No Fine-tuning needed."); return angle+=error alt_angle = angle+(error*-2) # should be very near the center when flipped here # we still need to bisect search because the relationship of pole_angle <==> error is somewhat unpredictable upper_bounds = alt_angle if alt_angle > angle else angle lower_bounds = alt_angle if alt_angle < angle else angle i=0 while ( True ): if (i>=max_iterations): prOrange(f"IK Pole Angle Set reached max iterations of {i} in {time()-start_time} seconds") break if (abs(error)0: upper_bounds=try_angle if error<0: lower_bounds=try_angle i+=1 def bExecute(self, context): prepare_parameters(self) print(wrapGreen("Creating ")+wrapOrange("Inverse Kinematics")+ wrapGreen(" Constraint for bone: ") + wrapOrange(self.GetxForm().bGetObject().name)) ik_bone = self.GetxForm().bGetObject() c = self.GetxForm().bGetObject().constraints.new('IK') self.get_target_and_subtarget(c) self.get_target_and_subtarget(c, input_name = 'Pole Target') if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c c.chain_count = 1 # so that, if there are errors, this doesn't print a whole bunch of circular dependency crap from having infinite chain length if (c.pole_target): # Calculate the pole angle, the user shouldn't have to. # my_xf = self.GetxForm() # from .xForm_containers import xFormBone # if not isinstance(my_xf, xFormBone): # raise GraphError(f"ERROR: Pole Target must be ") # if c.target != self.set_pole_angle(self.calc_pole_angle_pre(c, ik_bone)) props_sockets = { 'chain_count' : ("Chain Length", 1), 'use_tail' : ("Use Tail", True), 'use_stretch' : ("Stretch", True), "weight" : ("Position", 1.0), "orient_weight" : ("Rotation", 0.0), "influence" : ("Influence", 1.0), 'mute' : ("Enable", True), } evaluate_sockets(self, c, props_sockets) # TODO: handle drivers # (it should be assumed we want it on if it's plugged # into a driver). c.use_location = self.evaluate_input("Position") > 0 c.use_rotation = self.evaluate_input("Rotation") > 0 self.executed = True def bFinalize(self, bContext = None): # adding a test here if bContext: ik_bone = self.GetxForm().bGetObject(mode='POSE') if self.bObject.pole_target: prWhite(f"Fine-tuning IK Pole Angle for {self}") self.calc_pole_angle_post(self.bObject, ik_bone, bContext) finish_drivers(self) def ik_report_error(pb, context, do_print=False): dg = context.view_layer.depsgraph dg.update() loc1, rot_quaternion1, scl1 = pb.matrix.decompose() loc2, rot_quaternion2, scl2 = pb.bone.matrix_local.decompose() location_error=(loc1-loc2).length rotation_error = rot_quaternion1.rotation_difference(rot_quaternion2).angle scale_error = (scl1-scl2).length if location_error < FLOAT_EPSILON: location_error = 0 if abs(rotation_error) < FLOAT_EPSILON: rotation_error = 0 if scale_error < FLOAT_EPSILON: scale_error = 0 if do_print: print (f"IK Location Error: {location_error}") print (f"IK Rotation Error: {rotation_error}") print (f"IK Scale Error : {scale_error}") return (location_error, rotation_error, scale_error) # This is kinda a weird design decision? class LinkDrivenParameter(MantisLinkNode): '''A node representing an armature object''' def __init__(self, signature, base_tree): self.base_tree=base_tree inputs = [ "Input Relationship" , "Value" , "Parameter" , "Index" , ] self.signature = signature additional_parameters = { "Name":None } self.inputs.init_sockets(inputs) self.outputs.init_sockets(["Output Relationship"]) self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, bContext = None,): prepare_parameters(self) prGreen("Executing Driven Parameter node") prop = self.evaluate_input("Parameter") index = self.evaluate_input("Index") value = self.evaluate_input("Value") xf = self.GetxForm() ob = xf.bGetObject(mode="POSE") # IMPORTANT: this node only works on pose bone attributes. self.bObject = ob length=1 if hasattr(ob, prop): try: length = len(getattr(ob, prop)) except TypeError: pass except AttributeError: pass else: raise AttributeError(f"Cannot Set value {prop} on object because it does not exist.") def_value = 0.0 if length>1: def_value=[0.0]*length self.parameters["Value"] = tuple( 0.0 if i != index else value for i in range(length)) props_sockets = { prop: ("Value", def_value) } evaluate_sockets(self, ob, props_sockets) self.executed = True def bFinalize(self, bContext = None): driver = self.evaluate_input("Value") try: for i, val in enumerate(self.parameters["Value"]): from .drivers import MantisDriver if isinstance(val, MantisDriver): driver["ind"] = i val = driver except AttributeError: self.parameters["Value"] = driver except TypeError: self.parameters["Value"] = driver finish_drivers(self) class LinkArmature(MantisLinkNode): '''A node representing an armature object''' def __init__(self, signature, base_tree,): super().__init__(signature, base_tree) inputs = [ "Input Relationship" , "Preserve Volume" , "Use Envelopes" , "Use Current Location" , "Influence" , "Enable" , ] additional_parameters = { "Name":None } self.inputs.init_sockets(inputs) self.outputs.init_sockets(["Output Relationship"]) self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) setup_custom_props(self) def GetxForm(self): return GetxForm(self) def bExecute(self, bContext = None,): prGreen("Creating Armature Constraint for bone: \""+ self.GetxForm().bGetObject().name + "\"") prepare_parameters(self) c = self.GetxForm().bGetObject().constraints.new('ARMATURE') if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c # get number of targets num_targets = len( list(self.inputs.values())[6:] )//2 props_sockets = { 'use_deform_preserve_volume' : ("Preserve Volume", 0), 'use_bone_envelopes' : ("Use Envelopes", 0), 'use_current_location' : ("Use Current Location", 0), 'influence' : ( "Influence" , 1), 'mute' : ("Enable", True), } targets_weights = {} for i in range(num_targets): target = c.targets.new() target_input_name = list(self.inputs.keys())[i*2+6 ] weight_input_name = list(self.inputs.keys())[i*2+6+1] self.get_target_and_subtarget(target, target_input_name) weight_value=self.evaluate_input(weight_input_name) if not isinstance(weight_value, float): weight_value=0 targets_weights[i]=weight_value props_sockets["targets[%d].weight" % i] = (weight_input_name, 0) # targets_weights.append({"weight":(weight_input_name, 0)}) evaluate_sockets(self, c, props_sockets) for target, value in targets_weights.items(): c.targets[target].weight=value # for i, (target, weight) in enumerate(zip(c.targets, targets_weights)): # evaluate_sockets(self, target, weight) self.executed = True def bFinalize(self, bContext = None): finish_drivers(self) class LinkSplineIK(MantisLinkNode): '''A node representing an armature object''' def __init__(self, signature, base_tree): super().__init__(signature, base_tree) inputs = [ "Input Relationship" , "Target" , "Chain Length" , "Even Divisions" , "Chain Offset" , "Use Curve Radius" , "Y Scale Mode" , "XZ Scale Mode" , "Use Original Scale" , "Influence" , ] additional_parameters = { "Name":None } self.inputs.init_sockets(inputs) self.outputs.init_sockets(["Output Relationship"]) self.init_parameters(additional_parameters=additional_parameters) self.set_traverse([("Input Relationship", "Output Relationship")]) def GetxForm(self): return GetxForm(self) def bExecute(self, bContext = None,): prepare_parameters(self) prGreen("Creating Spline-IK Constraint for bone: \""+ self.GetxForm().bGetObject().name + "\"") c = self.GetxForm().bGetObject().constraints.new('SPLINE_IK') self.get_target_and_subtarget(c) if constraint_name := self.evaluate_input("Name"): c.name = constraint_name self.bObject = c props_sockets = { 'chain_count' : ("Chain Length", 0), 'use_even_divisions' : ("Even Divisions", False), 'use_chain_offset' : ("Chain Offset", False), 'use_curve_radius' : ("Use Curve Radius", False), 'y_scale_mode' : ("Y Scale Mode", "FIT_CURVE"), 'xz_scale_mode' : ("XZ Scale Mode", "NONE"), 'use_original_scale' : ("Use Original Scale", False), 'influence' : ("Influence", 1), } evaluate_sockets(self, c, props_sockets) self.executed = True