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# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
import bpy
from bpy.types import Operator
def geometry_node_group_empty_new():
group = bpy.data.node_groups.new("Geometry Nodes", 'GeometryNodeTree')
group.inputs.new('NodeSocketGeometry', "Geometry")
group.outputs.new('NodeSocketGeometry', "Geometry")
input_node = group.nodes.new('NodeGroupInput')
output_node = group.nodes.new('NodeGroupOutput')
output_node.is_active_output = True
input_node.select = False
output_node.select = False
input_node.location.x = -200 - input_node.width
output_node.location.x = 200
group.links.new(output_node.inputs[0], input_node.outputs[0])
return group
def geometry_modifier_poll(context):
ob = context.object
# Test object support for geometry node modifier (No hair object support yet)
if not ob or ob.type not in {'MESH', 'POINTCLOUD', 'VOLUME', 'CURVE', 'FONT'}:
return False
return True
class NewGeometryNodesModifier(Operator):
"""Create a new modifier with a new geometry node group"""
bl_idname = "node.new_geometry_nodes_modifier"
bl_label = "New Geometry Node Modifier"
bl_options = {'REGISTER', 'UNDO'}
@classmethod
def poll(cls, context):
return geometry_modifier_poll(context)
def execute(self, context):
modifier = context.object.modifiers.new("GeometryNodes", "NODES")
if not modifier:
return {'CANCELLED'}
return {'FINISHED'}
class NewGeometryNodeTreeAssign(Operator):
"""Create a new geometry node group and assign it to the active modifier"""
bl_idname = "node.new_geometry_node_group_assign"
bl_label = "Assign New Geometry Node Group"
bl_options = {'REGISTER', 'UNDO'}
@classmethod
def poll(cls, context):
return geometry_modifier_poll(context)
def execute(self, context):
if context.area.type == 'PROPERTIES':
modifier = context.modifier
else:
modifier = context.object.modifiers.active
if not modifier:
return {'CANCELLED'}
group = geometry_node_group_empty_new()
modifier.node_group = group
return {'FINISHED'}
class CopyGeometryNodeTreeAssign(Operator):
"""Copy the active geometry node group and assign it to the active modifier"""
bl_idname = "node.copy_geometry_node_group_assign"
bl_label = "Copy Geometry Node Group"
bl_options = {'REGISTER', 'UNDO'}
@classmethod
def poll(cls, context):
return geometry_modifier_poll(context)
def execute(self, context):
modifier = context.object.modifiers.active
if modifier is None:
return {'CANCELLED'}
group = modifier.node_group
if group is None:
return {'CANCELLED'}
modifier.node_group = group.copy()
return {'FINISHED'}
classes = (
NewGeometryNodesModifier,
NewGeometryNodeTreeAssign,
CopyGeometryNodeTreeAssign,
)
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