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Merged
merged 2 commits into from
Jun 17, 2023
Merged

Copy node group #53

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3c72f84
feat: added UI for script mode
BrendanParmer Jun 3, 2023
a505ce6
feat: copies script to clipboard
BrendanParmer Jun 4, 2023
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5 changes: 3 additions & 2 deletions __init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
"name": "Node to Python",
"description": "Convert Blender node groups to a Python add-on!",
"author": "Brendan Parmer",
"version": (2, 1, 0),
"version": (2, 2, 0),
"blender": (3, 0, 0),
"location": "Node",
"category": "Node",
Expand Down Expand Up @@ -36,7 +36,8 @@ def draw(self, context):
geo_nodes.GeoNodesToPythonPanel,
materials.MaterialToPython,
materials.SelectMaterialMenu,
materials.MaterialToPythonPanel]
materials.MaterialToPythonPanel
]

def register():
for cls in classes:
Expand Down
105 changes: 67 additions & 38 deletions geo_nodes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
import os

from .utils import *
from io import StringIO

geo_node_settings = {
# Attribute nodes
Expand Down Expand Up @@ -168,6 +169,13 @@ class GeoNodesToPython(bpy.types.Operator):
bl_label = "Geo Nodes to Python"
bl_options = {'REGISTER', 'UNDO'}

mode : bpy.props.EnumProperty(
name = "Mode",
items = [
('SCRIPT', "Script", "Copy just the node group to the Blender clipboard"),
('ADDON', "Addon", "Create a full addon")
]
)
geo_nodes_group_name: bpy.props.StringProperty(name="Node Group")

def execute(self, context):
Expand All @@ -176,28 +184,30 @@ def execute(self, context):

#set up names to use in generated addon
nt_var = clean_string(nt.name)
class_name = clean_string(nt.name.replace(" ", "").replace('.', ""),
lower = False)

#find base directory to save new addon
base_dir = bpy.path.abspath("//")
if not base_dir or base_dir == "":
self.report({'ERROR'},
("NodeToPython: Save your blend file before using "
"NodeToPython!"))
return {'CANCELLED'}

#save in /addons/ subdirectory
zip_dir = os.path.join(base_dir, "addons", nt_var)
addon_dir = os.path.join(zip_dir, nt_var)
if not os.path.exists(addon_dir):
os.makedirs(addon_dir)
file = open(f"{addon_dir}/__init__.py", "w")

create_header(file, nt.name)
init_operator(file, class_name, nt_var, nt.name)

file.write("\tdef execute(self, context):\n")
if self.mode == 'ADDON':
#find base directory to save new addon
base_dir = bpy.path.abspath("//")
if not base_dir or base_dir == "":
self.report({'ERROR'},
("NodeToPython: Save your blend file before using "
"NodeToPython!"))
return {'CANCELLED'}

#save in addons/ subdirectory
zip_dir = os.path.join(base_dir, "addons", nt_var)
addon_dir = os.path.join(zip_dir, nt_var)
if not os.path.exists(addon_dir):
os.makedirs(addon_dir)
file = open(f"{addon_dir}/__init__.py", "w")

create_header(file, nt.name)
class_name = clean_string(nt.name.replace(" ", "").replace('.', ""),
lower = False)
init_operator(file, class_name, nt_var, nt.name)
file.write("\tdef execute(self, context):\n")
else:
file = StringIO("")

#set to keep track of already created node trees
node_trees = set()
Expand All @@ -218,8 +228,8 @@ def process_geo_nodes_group(node_tree, level, node_vars, used_vars):
file.write(f"{outer}def {nt_var}_node_group():\n")
file.write((f"{inner}{nt_var}"
f"= bpy.data.node_groups.new("
f"type = \"GeometryNodeTree\", "
f"name = \"{node_tree.name}\")\n"))
f"type = \'GeometryNodeTree\', "
f"name = {str_to_py_str(node_tree.name)})\n"))
file.write("\n")

inputs_set = False
Expand Down Expand Up @@ -256,12 +266,12 @@ def process_geo_nodes_group(node_tree, level, node_vars, used_vars):
if node.node_tree is not None:
file.write((f"{inner}{node_var}.node_tree = "
f"bpy.data.node_groups"
f"[\"{node.node_tree.name}\"]\n"))
f"[{str_to_py_str(node.node_tree.name)}]\n"))
elif node.bl_idname == 'ShaderNodeValToRGB':
color_ramp_settings(node, file, inner, node_var)
elif node.bl_idname in curve_nodes:
curve_node_settings(node, file, inner, node_var)
elif node.bl_idname in image_nodes:
elif node.bl_idname in image_nodes and self.mode == 'ADDON':
img = node.image
if img is not None and img.source in {'FILE', 'GENERATED', 'TILED'}:
save_image(img, addon_dir)
Expand All @@ -284,7 +294,10 @@ def process_geo_nodes_group(node_tree, level, node_vars, used_vars):
f"{attr_domain}\n"))

if node.bl_idname != 'GeometryNodeSimulationInput':
set_input_defaults(node, file, inner, node_var, addon_dir)
if self.mode == 'ADDON':
set_input_defaults(node, file, inner, node_var, addon_dir)
else:
set_input_defaults(node, file, inner, node_var)
set_output_defaults(node, file, inner, node_var)

#create simulation zones
Expand All @@ -295,7 +308,10 @@ def process_geo_nodes_group(node_tree, level, node_vars, used_vars):
f"({sim_output_var})\n"))

#must set defaults after paired with output
set_input_defaults(sim_input, file, inner, sim_input_var, addon_dir)
if self.mode == 'ADDON':
set_input_defaults(node, file, inner, node_var, addon_dir)
else:
set_input_defaults(node, file, inner, node_var)
set_output_defaults(sim_input, file, inner, sim_input_var)

set_parents(node_tree, file, inner, node_vars)
Expand All @@ -311,7 +327,11 @@ def process_geo_nodes_group(node_tree, level, node_vars, used_vars):
f"{nt_var}_node_group()\n\n"))
return used_vars

process_geo_nodes_group(nt, 2, node_vars, used_vars)
if self.mode == 'ADDON':
level = 2
else:
level = 0
process_geo_nodes_group(nt, level, node_vars, used_vars)

def apply_modifier():
#get object
Expand All @@ -323,21 +343,30 @@ def apply_modifier():
file.write((f"\t\tmod = obj.modifiers.new(name = {mod_name}, "
f"type = 'NODES')\n"))
file.write(f"\t\tmod.node_group = {nt_var}\n")
apply_modifier()

file.write("\t\treturn {'FINISHED'}\n\n")

create_menu_func(file, class_name)
create_register_func(file, class_name)
create_unregister_func(file, class_name)
create_main_func(file)
if self.mode == 'ADDON':
apply_modifier()

file.write("\t\treturn {'FINISHED'}\n\n")

create_menu_func(file, class_name)
create_register_func(file, class_name)
create_unregister_func(file, class_name)
create_main_func(file)
else:
context.window_manager.clipboard = file.getvalue()
file.close()

zip_addon(zip_dir)

if self.mode == 'ADDON':
zip_addon(zip_dir)
self.report({'INFO'}, "NodeToPython: Saved geometry nodes group")
return {'FINISHED'}

def invoke(self, context, event):
return context.window_manager.invoke_props_dialog(self)

def draw(self, context):
self.layout.prop(self, "mode")

class SelectGeoNodesMenu(bpy.types.Menu):
bl_idname = "NODE_MT_ntp_geo_nodes_selection"
bl_label = "Select Geo Nodes"
Expand Down
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