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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
def geometry_node_group_empty_new(context):
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.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) -> bool:
ob = context.object
# Test object support for geometry node modifier (No volume or hair object support yet)
if not ob or ob.type not in {'MESH', 'CURVE', 'SURFACE', 'META', 'FONT', 'POINTCLOUD'}:
return False
return True
class NewGeometryNodesModifier(bpy.types.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'}
group = geometry_node_group_empty_new(context)
modifier.node_group = group
return {'FINISHED'}
class NewGeometryNodeTreeAssign(bpy.types.Operator):
"""Create a new geometry node group and assign it the 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):
modifier = context.object.modifiers.active
if not modifier:
return {'CANCELLED'}
group = geometry_node_group_empty_new(context)
modifier.node_group = group
return {'FINISHED'}
classes = (
NewGeometryNodesModifier,
NewGeometryNodeTreeAssign,
)
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