ae7c71ef09
When pressing F3 to bring up the Search Menu, an error appeared because the MoveModifierToNodes operator's poll method did not consider the context where no object was selected. Pull Request: https://projects.blender.org/blender/blender/pulls/107310
247 lines
8.6 KiB
Python
247 lines
8.6 KiB
Python
# SPDX-License-Identifier: GPL-2.0-or-later
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import bpy
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from bpy.types import Operator
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from bpy.app.translations import pgettext_data as data_
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def build_default_empty_geometry_node_group(name):
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group = bpy.data.node_groups.new(name, 'GeometryNodeTree')
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group.inputs.new('NodeSocketGeometry', data_("Geometry"))
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group.outputs.new('NodeSocketGeometry', data_("Geometry"))
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input_node = group.nodes.new('NodeGroupInput')
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output_node = group.nodes.new('NodeGroupOutput')
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output_node.is_active_output = True
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input_node.select = False
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output_node.select = False
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input_node.location.x = -200 - input_node.width
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output_node.location.x = 200
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return group
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def geometry_node_group_empty_new():
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group = build_default_empty_geometry_node_group(data_("Geometry Nodes"))
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group.links.new(group.nodes[data_("Group Input")].outputs[0], group.nodes[data_("Group Output")].inputs[0])
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return group
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def geometry_modifier_poll(context):
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ob = context.object
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# Test object support for geometry node modifier
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if not ob or ob.type not in {'MESH', 'POINTCLOUD', 'VOLUME', 'CURVE', 'FONT', 'CURVES'}:
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return False
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return True
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def get_context_modifier(context):
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if context.area.type == 'PROPERTIES':
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modifier = context.modifier
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else:
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if context.object is None:
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return False
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modifier = context.object.modifiers.active
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if modifier is None or modifier.type != 'NODES':
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return None
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return modifier
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def edit_geometry_nodes_modifier_poll(context):
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return get_context_modifier(context) is not None
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def socket_idname_to_attribute_type(idname):
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if idname.startswith("NodeSocketInt"):
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return "INT"
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elif idname.startswith("NodeSocketColor"):
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return "FLOAT_COLOR"
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elif idname.startswith("NodeSocketVector"):
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return "FLOAT_VECTOR"
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elif idname.startswith("NodeSocketBool"):
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return "BOOLEAN"
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elif idname.startswith("NodeSocketFloat"):
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return "FLOAT"
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raise ValueError("Unsupported socket type")
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return ""
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def modifier_attribute_name_get(modifier, identifier):
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try:
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return modifier[identifier + "_attribute_name"]
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except KeyError:
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return None
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def modifier_input_use_attribute(modifier, identifier):
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try:
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return modifier[identifier + "_use_attribute"] != 0
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except KeyError:
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return False
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def get_socket_with_identifier(sockets, identifier):
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for socket in sockets:
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if socket.identifier == identifier:
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return socket
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return None
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def get_enabled_socket_with_name(sockets, name):
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for socket in sockets:
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if socket.name == name and socket.enabled:
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return socket
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return None
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class MoveModifierToNodes(Operator):
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"""Move inputs and outputs from in the modifier to a new node group"""
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bl_idname = "object.geometry_nodes_move_to_nodes"
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bl_label = "Move to Nodes"
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bl_options = {'REGISTER', 'UNDO'}
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@classmethod
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def poll(cls, context):
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return edit_geometry_nodes_modifier_poll(context)
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def execute(self, context):
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modifier = get_context_modifier(context)
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if not modifier:
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return {'CANCELLED'}
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old_group = modifier.node_group
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if not old_group:
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return {'CANCELLED'}
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wrapper_name = old_group.name + ".wrapper"
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group = build_default_empty_geometry_node_group(wrapper_name)
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group_node = group.nodes.new("GeometryNodeGroup")
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group_node.node_tree = old_group
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group_node.update()
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group_input_node = group.nodes[data_("Group Input")]
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group_output_node = group.nodes[data_("Group Output")]
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# Copy default values for inputs and create named attribute input nodes.
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input_nodes = []
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first_geometry_input = None
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for input_socket in old_group.inputs:
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identifier = input_socket.identifier
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group_node_input = get_socket_with_identifier(group_node.inputs, identifier)
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if modifier_input_use_attribute(modifier, identifier):
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input_node = group.nodes.new("GeometryNodeInputNamedAttribute")
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input_nodes.append(input_node)
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input_node.data_type = socket_idname_to_attribute_type(input_socket.bl_socket_idname)
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attribute_name = modifier_attribute_name_get(modifier, identifier)
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input_node.inputs["Name"].default_value = attribute_name
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output_socket = get_enabled_socket_with_name(input_node.outputs, "Attribute")
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group.links.new(output_socket, group_node_input)
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elif hasattr(input_socket, "default_value"):
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group_node_input.default_value = modifier[identifier]
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elif input_socket.bl_socket_idname == 'NodeSocketGeometry':
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if not first_geometry_input:
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first_geometry_input = group_node_input
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group.links.new(group_input_node.outputs[0], first_geometry_input)
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# Adjust locations of named attribute input nodes and group input node to make some space.
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if input_nodes:
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for i, node in enumerate(input_nodes):
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node.location.x = -175
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node.location.y = i * -50
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group_input_node.location.x = -350
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# Connect outputs to store named attribute nodes to replace modifier attribute outputs.
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store_nodes = []
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first_geometry_output = None
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for output_socket in old_group.outputs:
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identifier = output_socket.identifier
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group_node_output = get_socket_with_identifier(group_node.outputs, identifier)
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attribute_name = modifier_attribute_name_get(modifier, identifier)
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if attribute_name:
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store_node = group.nodes.new("GeometryNodeStoreNamedAttribute")
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store_nodes.append(store_node)
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store_node.data_type = socket_idname_to_attribute_type(output_socket.bl_socket_idname)
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store_node.domain = output_socket.attribute_domain
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store_node.inputs["Name"].default_value = attribute_name
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input_socket = get_enabled_socket_with_name(store_node.inputs, "Value")
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group.links.new(group_node_output, input_socket)
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elif output_socket.bl_socket_idname == 'NodeSocketGeometry':
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if not first_geometry_output:
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first_geometry_output = group_node_output
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# Adjust locations of store named attribute nodes and move group output.
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# Note that the node group has its sockets names translated, while the built-in nodes don't.
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if store_nodes:
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for i, node in enumerate(store_nodes):
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node.location.x = (i + 1) * 175
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node.location.y = 0
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group_output_node.location.x = (len(store_nodes) + 1) * 175
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group.links.new(first_geometry_output, store_nodes[0].inputs["Geometry"])
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for i in range(len(store_nodes) - 1):
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group.links.new(store_nodes[i].outputs["Geometry"], store_nodes[i + 1].inputs["Geometry"])
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group.links.new(store_nodes[-1].outputs["Geometry"], group_output_node.inputs[data_("Geometry")])
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else:
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group.links.new(first_geometry_output, group_output_node.inputs[data_("Geometry")])
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modifier.node_group = group
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return {'FINISHED'}
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class NewGeometryNodesModifier(Operator):
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"""Create a new modifier with a new geometry node group"""
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bl_idname = "node.new_geometry_nodes_modifier"
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bl_label = "New Geometry Node Modifier"
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bl_options = {'REGISTER', 'UNDO'}
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@classmethod
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def poll(cls, context):
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return geometry_modifier_poll(context)
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def execute(self, context):
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modifier = context.object.modifiers.new(data_("GeometryNodes"), "NODES")
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if not modifier:
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return {'CANCELLED'}
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group = geometry_node_group_empty_new()
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modifier.node_group = group
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return {'FINISHED'}
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class NewGeometryNodeTreeAssign(Operator):
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"""Create a new geometry node group and assign it to the active modifier"""
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bl_idname = "node.new_geometry_node_group_assign"
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bl_label = "Assign New Geometry Node Group"
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bl_options = {'REGISTER', 'UNDO'}
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@classmethod
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def poll(cls, context):
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return geometry_modifier_poll(context)
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def execute(self, context):
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modifier = get_context_modifier(context)
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if not modifier:
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return {'CANCELLED'}
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group = geometry_node_group_empty_new()
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modifier.node_group = group
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return {'FINISHED'}
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classes = (
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NewGeometryNodesModifier,
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NewGeometryNodeTreeAssign,
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MoveModifierToNodes,
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)
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