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Copy pathnode_tree_exporter.py
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1868 lines (1553 loc) · 72.2 KB
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import abc
import copy
import os
from typing import Callable
import bpy
from .node_settings import node_settings, ST
from .ntp_node_tree import *
from .ntp_operator import NTP_OT_Export, NodeTreeInfo, NODE_TREE_NAMES
from .utils import *
BASE_DIR = "base_dir"
DATA_DST = "data_dst"
DATA_SRC = "data_src"
DATAFILES_PATH = "datafiles_path"
IMAGE_DIR_NAME = "imgs"
IMAGE_PATH = "image_path"
INDEX = "i"
ITEM = "item"
LIB_RELPATH = "lib_relpath"
LIB_PATH = "lib_path"
NODE = "node"
NODE_GROUP = "node_group"
RESERVED_NAMES = {
BASE_DIR,
DATA_DST,
DATA_SRC,
DATAFILES_PATH,
IMAGE_DIR_NAME,
IMAGE_PATH,
INDEX,
ITEM,
LIB_RELPATH,
LIB_PATH,
NODE_TREE_NAMES,
NODE_GROUP
}
NO_DEFAULT_SOCKETS = {
bpy.types.NodeTreeInterfaceSocketCollection,
bpy.types.NodeTreeInterfaceSocketGeometry,
bpy.types.NodeTreeInterfaceSocketImage,
bpy.types.NodeTreeInterfaceSocketMaterial,
bpy.types.NodeTreeInterfaceSocketMatrix,
bpy.types.NodeTreeInterfaceSocketObject,
bpy.types.NodeTreeInterfaceSocketShader,
bpy.types.NodeTreeInterfaceSocketTexture,
}
if bpy.app.version >= (5, 0, 0):
NO_DEFAULT_SOCKETS.add(bpy.types.NodeTreeInterfaceSocketBundle)
NO_DEFAULT_SOCKETS.add(bpy.types.NodeTreeInterfaceSocketClosure)
if bpy.app.version >= (5, 1, 0):
NO_DEFAULT_SOCKETS.add(bpy.types.NodeTreeInterfaceSocketFont)
if bpy.app.version >= (5, 2, 0):
NO_DEFAULT_SOCKETS.add(bpy.types.NodeTreeInterfaceSocketSound)
#node input sockets that are messy to set default values for
DONT_SET_DEFAULTS = {
'NodeSocketGeometry',
'NodeSocketShader',
'NodeSocketMatrix',
'NodeSocketVirtual',
'NodeSocketBundle',
'NodeSocketClosure'
}
class NodeTreeExporter(metaclass=abc.ABCMeta):
_type = ""
def __init__(
self,
ntp_op: NTP_OT_Export,
node_tree_info: NodeTreeInfo
):
# Operator executing the conversion
self._operator : NTP_OT_Export = ntp_op
# Info for the node tree being exported
self._node_tree_info : NodeTreeInfo = node_tree_info
# Dictionary to keep track of variables->usage count pairs
self._used_vars: dict[str, int] = copy.copy(self._operator._used_vars)
for name in RESERVED_NAMES:
self._used_vars[name] = 0
# Variable name to be used for object
self._obj_var : str = self._create_var(self._node_tree_info._obj.name)
# Class name for the operator, if it exists
if self._operator._mode == 'ADDON' and self._node_tree_info._is_base:
self._class_name : str = (
f"{clean_string(self._operator._name, lower=False)}_OT_"
f"{clean_string(self._node_tree_info._obj.name, lower=False)}"
)
self._operator._modules[self._node_tree_info._module].append(
self._class_name
)
# Dictionary to keep track of node->variable name pairs
self._node_vars: dict[bpy.types.Node, str] = {}
# Dictionary to keep track of node tree->variable name pairs
self._node_tree_vars: dict[bpy.types.NodeTree, str] = {}
# Write functions after nodes are mostly initialized and linked up
self._write_after_links: list[Callable] = []
# Copy of node settings (may have to modify for some nodes)
self._node_settings = node_settings
def export(self) -> None:
# TODO: cleanup
if self._operator._mode == 'SCRIPT':
self._import_essential_libs()
if self._node_tree_info._group_type.is_group():
self._process_node_tree()
if self._operator._mode == 'ADDON' and self._node_tree_info._is_base:
self._init_operator(self._obj_var, self._node_tree_info._obj.name)
self._write("def execute(self, context: bpy.types.Context):", 1)
self._import_essential_libs()
# node tree names
self._write("# Maps node tree creation functions to the node tree ", 2)
self._write("# name, such that we don't recreate node trees unnecessarily", 2)
self._write(f"{NODE_TREE_NAMES} : dict[typing.Callable, str] = {{}}", 2)
self._write("", 0)
for dependency in self._node_tree_info._dependencies.keys():
self._call_node_tree_creation(dependency, 2)
if self._node_tree_info._group_type.is_obj():
self._create_obj()
self._process_node_tree()
if self._operator._mode == 'ADDON' and self._node_tree_info._is_base:
self._call_node_tree_creation(self._node_tree_info._base_tree, 2)
self._write("return {'FINISHED'}", self._operator._outer_indent_level)
self._write("", self._operator._outer_indent_level)
def _write(self, string: str, indent_level: int = -1):
self._operator._write(string, indent_level)
def _create_var(self, name: str) -> str:
"""
Creates a unique variable name for a node tree
Parameters:
name (str): basic string we'd like to create the variable name out of
Returns:
clean_name (str): variable name for the node tree
"""
if name == "":
name = "unnamed"
clean_name = clean_string(name)
var = clean_name
if var in self._used_vars:
self._used_vars[var] += 1
return f"{clean_name}_{self._used_vars[var]}"
else:
self._used_vars[var] = 0
return clean_name
def _init_operator(self, idname: str, label: str) -> None:
"""
Initializes the add-on's operator
Parameters:
idname (str): name for the operator
label (str): appearence inside Blender
"""
self._idname = idname
self._write(f"class {self._class_name}(bpy.types.Operator):", 0)
idname_str = f"{clean_string(self._operator._name)}.{idname}"
self._write(f"bl_idname = {str_to_py_str(idname_str)}", 1)
self._write(f"bl_label = {str_to_py_str(label)}", 1)
self._write("bl_options = {\'REGISTER\', \'UNDO\'}\n", 1)
self._write("def __init__(self, *args, **kwargs):", 1)
self._write("super().__init__(*args, **kwargs)\n", 2)
self._operator._outer_indent_level = 2
self._operator._inner_indent_level = 3
@abc.abstractmethod
def _create_obj(self):
pass
def _get_obj_creation_indent(self) -> int:
indent_level = -1
if self._operator._mode == 'ADDON':
indent_level = 2
elif self._operator._mode == 'SCRIPT':
indent_level = 0
return indent_level
def _import_essential_libs(self) -> None:
if len(self._node_tree_info._lib_dependencies) == 0:
return
self._operator._inner_indent_level -= 1
self._write("# Import node groups from Blender essentials library")
self._write(f"{DATAFILES_PATH} = bpy.utils.system_resource('DATAFILES')")
for path, node_trees in self._node_tree_info._lib_dependencies.items():
self._write(f"{LIB_RELPATH} = {str_to_py_str(str(path))}")
self._write(f"{LIB_PATH} = os.path.join({DATAFILES_PATH}, {LIB_RELPATH})")
self._write(f"with bpy.data.libraries.load({LIB_PATH}, link=True) "
f" as ({DATA_SRC}, {DATA_DST}):")
self._write(f"\t{DATA_DST}.node_groups = []")
for node_tree in node_trees:
name_str = str_to_py_str(node_tree.name)
self._write(f"\tif {name_str} in {DATA_SRC}.node_groups:")
self._write(f"\t\t{DATA_DST}.node_groups.append({name_str})")
# TODO: handle bad case with warning (in both script and addon mode)
self._write("\n")
self._operator._inner_indent_level += 1
def _initialize_ntp_node_tree(
self,
node_tree: bpy.types.NodeTree,
nt_var: str
) -> NTP_NodeTree:
return NTP_NodeTree(node_tree, nt_var)
def _process_node_tree(self) -> None:
"""
Generates a Python function to recreate a compositor node tree
Parameters:
node_tree (NodeTree): node tree to be recreated
"""
node_tree = self._node_tree_info._base_tree
nt_var = self._create_var(node_tree.name)
self._node_tree_vars[node_tree] = nt_var
ntp_nt = self._initialize_ntp_node_tree(node_tree, nt_var)
self._initialize_node_tree(ntp_nt)
self._set_node_tree_properties(node_tree)
self._tree_interface_settings(ntp_nt)
#initialize nodes
self._write(f"# Initialize {nt_var} nodes\n")
for node in node_tree.nodes:
self._process_node(node, ntp_nt)
for zone_list in ntp_nt._zone_inputs.values():
self._process_zones(zone_list)
#set look of nodes
self._set_parents(node_tree)
self._set_locations(node_tree)
self._set_dimensions(node_tree)
#create connections
self._init_links(node_tree)
self._write(f"return {nt_var}\n")
@abc.abstractmethod
def _initialize_node_tree(
self,
ntp_node_tree: NTP_NodeTree
) -> None:
pass
def _set_node_tree_properties(self, node_tree: bpy.types.NodeTree) -> None:
nt_var = self._node_tree_vars[node_tree]
color_tag_str = enum_to_py_str(node_tree.color_tag)
self._write(f"{nt_var}.color_tag = {color_tag_str}")
desc_str = str_to_py_str(node_tree.description)
self._write(f"{nt_var}.description = {desc_str}")
if bpy.app.version >= (4, 3, 0):
default_width = node_tree.default_group_node_width
self._write(f"{nt_var}.default_group_node_width = {default_width}")
def _tree_interface_settings(self, ntp_nt: NTP_NodeTree) -> None:
"""
Set the settings for group input and output sockets
Parameters:
ntp_nt (NTP_NodeTree): the node tree to set the interface for
"""
if len(ntp_nt._node_tree.interface.items_tree) == 0:
return
self._write(f"# {ntp_nt._var} interface\n")
panel_dict: dict[bpy.types.NodeTreeInterfacePanel, str] = {}
items_processed: set[bpy.types.NodeTreeInterfaceItem] = set()
self._process_items(None, panel_dict, items_processed, ntp_nt)
def _process_items(
self,
parent: bpy.types.NodeTreeInterfacePanel | None,
panel_dict: dict[bpy.types.NodeTreeInterfacePanel, str],
items_processed: set[bpy.types.NodeTreeInterfaceItem],
ntp_nt: NTP_NodeTree
) -> None:
"""
Recursive function to process all node tree interface items in a
given layer
Helper function to _tree_interface_settings()
Parameters:
parent (NodeTreeInterfacePanel): parent panel of the layer
(possibly None to signify the base)
panel_dict (dict[NodeTreeInterfacePanel, str]: panel -> variable
items_processed (set[NodeTreeInterfacePanel]): set of already
processed items, so none are done twice
ntp_nt (NTP_NodeTree): owner of the socket
"""
if parent is None:
items = ntp_nt._node_tree.interface.items_tree
else:
items = parent.interface_items
for item in items:
if item.parent.index != -1 and item.parent not in panel_dict:
continue # child of panel not processed yet
if item in items_processed:
continue
items_processed.add(item)
if item.item_type in {'SOCKET', 'PANEL_TOGGLE'}:
self._create_socket(item, parent, panel_dict, ntp_nt)
elif item.item_type == 'PANEL':
self._create_panel(
item,
panel_dict,
items_processed,
parent,
ntp_nt
)
if bpy.app.version >= (4, 4, 0) and parent is not None:
nt_var = self._node_tree_vars[ntp_nt._node_tree]
interface_var = f"{nt_var}.interface"
panel_var = panel_dict[item]
parent_var = panel_dict[parent]
self._write(f"{interface_var}.move_to_parent("
f"{panel_var}, {parent_var}, {item.index})")
def _create_socket(
self,
socket: bpy.types.NodeTreeInterfaceSocket,
parent: bpy.types.NodeTreeInterfacePanel,
panel_dict: dict[bpy.types.NodeTreeInterfacePanel, str],
ntp_nt: NTP_NodeTree
) -> None:
"""
Initialize a new tree socket
Helper function to _process_items()
Parameters:
socket (NodeTreeInterfaceSocket): the socket to recreate
parent (NodeTreeInterfacePanel): parent panel of the socket
(possibly None)
panel_dict (dict[NodeTreeInterfacePanel, str]: panel -> variable
ntp_nt (NTP_NodeTree): owner of the socket
"""
self._write(f"# Socket {socket.name}")
# initialization
socket_var = self._create_var(socket.name + "_socket")
name = str_to_py_str(socket.name)
in_out_enum = enum_to_py_str(socket.in_out)
socket_type = enum_to_py_str(socket.bl_socket_idname)
"""
I might be missing something, but the Python API's set up a bit
weird here now. The new socket initialization only accepts types
from a list of basic ones, but there doesn't seem to be a way of
retrieving just this basic type without the subtype information.
"""
if 'Float' in socket_type:
socket_type = enum_to_py_str('NodeSocketFloat')
elif 'Int' in socket_type:
socket_type = enum_to_py_str('NodeSocketInt')
elif 'Vector' in socket_type:
socket_type = enum_to_py_str('NodeSocketVector')
if parent is None:
optional_parent_str = ""
else:
optional_parent_str = f", parent = {panel_dict[parent]}"
self._write(f"{socket_var} = "
f"{ntp_nt._var}.interface.new_socket("
f"name={name}, in_out={in_out_enum}, "
f"socket_type={socket_type}"
f"{optional_parent_str})")
# vector dimensions
if hasattr(socket, "dimensions"):
dimensions : int = getattr(socket, "dimensions")
if dimensions != 3:
self._write(f"{socket_var}.dimensions = {dimensions}")
self._write("# Get the socket again, as its default value may "
"have been updated")
self._write(f"{socket_var} = {ntp_nt._var}.interface.items_tree[{socket_var}.index]")
self._set_tree_socket_defaults(socket, socket_var)
# subtype
if hasattr(socket, "subtype"):
subtype : str = getattr(socket, "subtype")
if subtype != '':
subtype = enum_to_py_str(subtype)
self._write(f"{socket_var}.subtype = {subtype}")
# default attribute name
if socket.default_attribute_name != "":
dan = str_to_py_str(
socket.default_attribute_name)
self._write(f"{socket_var}.default_attribute_name = {dan}")
# attribute domain
ad = enum_to_py_str(socket.attribute_domain)
self._write(f"{socket_var}.attribute_domain = {ad}")
# hide_value
if socket.hide_value is True:
self._write(f"{socket_var}.hide_value = True")
# hide in modifier
if socket.hide_in_modifier is True:
self._write(f"{socket_var}.hide_in_modifier = True")
# force non field
if socket.force_non_field is True:
self._write(f"{socket_var}.force_non_field = True")
# tooltip
if socket.description != "":
description = str_to_py_str(socket.description)
self._write(f"{socket_var}.description = {description}")
# layer selection field
if socket.layer_selection_field:
self._write(f"{socket_var}.layer_selection_field = True")
# is inspect output
if socket.is_inspect_output:
self._write(f"{socket_var}.is_inspect_output = True")
if bpy.app.version >= (4, 5, 0):
# default input
default_input = enum_to_py_str(socket.default_input)
self._write(f"{socket_var}.default_input = {default_input}")
# is panel toggle
if socket.is_panel_toggle:
self._write(f"{socket_var}.is_panel_toggle = True")
# menu expanded
if socket.menu_expanded:
self._write(f"{socket_var}.menu_expanded = True")
# structure type
structure_type = enum_to_py_str(socket.structure_type)
self._write(f"{socket_var}.structure_type = {structure_type}")
if bpy.app.version >= (5, 0, 0):
# optional label
if socket.optional_label:
self._write(f"{socket_var}.optional_label = True")
self._write("", 0)
def _create_panel(
self,
panel: bpy.types.NodeTreeInterfacePanel,
panel_dict: dict[bpy.types.NodeTreeInterfacePanel, str],
items_processed: set[bpy.types.NodeTreeInterfacePanel],
parent: bpy.types.NodeTreeInterfacePanel,
ntp_nt: NTP_NodeTree):
"""
Initialize a new tree panel and its subitems
Helper function to _process_items()
Parameters:
panel (NodeTreeInterfacePanel): the panel to recreate
panel_dict (dict[NodeTreeInterfacePanel, str]: panel -> variable
items_processed (set[NodeTreeInterfacePanel]): set of already
processed items, so none are done twice
parent (NodeTreeInterfacePanel): parent panel of the socket
(possibly None)
ntp_nt (NTP_NodeTree): owner of the socket
"""
self._write(f"# Panel {panel.name}")
panel_var = self._create_var(panel.name + "_panel")
panel_dict[panel] = panel_var
closed_str = ""
if panel.default_closed is True:
closed_str = f", default_closed=True"
self._write(
f"{panel_var} = {ntp_nt._var}.interface.new_panel("
f"{str_to_py_str(panel.name)}{closed_str})"
)
# tooltip
if panel.description != "":
description = str_to_py_str(panel.description)
self._write(f"{panel_var}.description = {description}")
panel_dict[panel] = panel_var
if len(panel.interface_items) > 0:
self._process_items(panel, panel_dict, items_processed, ntp_nt)
self._write("", 0)
def _set_tree_socket_defaults(
self,
socket_interface: bpy.types.NodeTreeInterfaceSocket,
socket_var: str
) -> None:
"""
Set a node tree input/output's default properties if they exist
Helper function to _create_socket()
Parameters:
socket_interface (NodeTreeInterfaceSocket): socket interface associated
with the input/output
socket_var (str): variable name for the socket
"""
if not self._operator._include_group_socket_values:
return
if type(socket_interface) in NO_DEFAULT_SOCKETS:
return
dv = getattr(socket_interface, "default_value")
if type(socket_interface) is bpy.types.NodeTreeInterfaceSocketMenu:
if dv == "":
self._operator.report(
{'WARNING'},
"NodeToPython: No menu found for socket "
f"{socket_interface.name}"
)
return
self._write_after_links.append(
lambda _socket_var=socket_var, _dv=enum_to_py_str(dv): (
self._write(f"{_socket_var}.default_value = {_dv}")
)
)
return
if type(socket_interface) == bpy.types.NodeTreeInterfaceSocketColor:
dv = vec4_to_py_str(dv)
elif type(dv) == mathutils.Euler:
dv = vec3_to_py_str(dv)
elif type(dv) == bpy_prop_array:
if hasattr(socket_interface, "dimensions"):
dimensions = getattr(socket_interface, "dimensions")
if dimensions != len(dv):
self._operator.report(
{'WARNING'},
f"Mismatched dimensions ({dimensions}) and "
f"default value ({len(dv)}) for socket {socket_var}"
)
if dimensions <= len(dv):
dv = vec_to_py_str(dv, dimensions)
else:
return
else:
dv = array_to_py_str(dv)
elif type(dv) == str:
dv = str_to_py_str(dv)
elif type(dv) == mathutils.Vector:
dimensions = getattr(socket_interface, "dimensions")
if dimensions != len(dv):
self._operator.report(
{'WARNING'},
f"Mismatched dimensions ({dimensions}) and "
f"default value ({len(dv)}) for socket {socket_var}"
)
return
if dimensions in {2, 3, 4}:
dv = vec_to_py_str(dv, dimensions)
else:
self._operator.report(
{'WARNING'},
f"Incorrect number of dimensions {dimensions} "
f"found for socket {socket_var}"
)
return
self._write(f"{socket_var}.default_value = {dv}")
# min value
if hasattr(socket_interface, "min_value"):
min_val = getattr(socket_interface, "min_value")
self._write(f"{socket_var}.min_value = {min_val}")
# max value
if hasattr(socket_interface, "max_value"):
max_val = getattr(socket_interface, "max_value")
self._write(f"{socket_var}.max_value = {max_val}")
def _process_node(self, node: bpy.types.Node, ntp_nt: NTP_NodeTree) -> None:
"""
Create node and set settings, defaults, and cosmetics
Parameters:
node (Node): node to process
ntp_nt (NTP_NodeTree): the node tree that node belongs to
"""
node_var: str = self._create_node(node, ntp_nt._var)
self._set_settings_defaults(node)
if bpy.app.version >= (5, 2, 0):
self._set_panel_states(node)
if node.bl_idname in ntp_nt._zone_inputs:
ntp_nt._zone_inputs[node.bl_idname].append(node)
self._hide_hidden_sockets(node)
if node.bl_idname not in ntp_nt._zone_inputs:
self._set_socket_defaults(node)
def _create_node(self, node: bpy.types.Node, node_tree_var: str) -> str:
"""
Initializes a new node with location, dimension, and label info
Parameters:
node (Node): node to be copied
node_tree_var (str): variable name for the node tree
Returns:
node_var (str): variable name for the node
"""
self._write(f"# Node {node.name}")
node_var = self._create_var(node.name)
self._node_vars[node] = node_var
idname = str_to_py_str(node.bl_idname)
self._write(f"{node_var} = {node_tree_var}.nodes.new({idname})")
# label
if node.label:
self._write(f"{node_var}.label = {str_to_py_str(node.label)}")
# name
self._write(f"{node_var}.name = {str_to_py_str(node.name)}")
# color
if node.use_custom_color:
self._write(f"{node_var}.use_custom_color = True")
self._write(f"{node_var}.color = {vec3_to_py_str(node.color)}")
bool_flags = [
"mute", "hide", "show_options", "show_preview","show_texture"
]
for flag in bool_flags:
if getattr(node, flag, False):
self._write(f"{node_var}.{flag} = True")
# Warning propagation
if bpy.app.version >= (4, 3, 0):
if node.warning_propagation != 'ALL':
self._write(f"{node_var}.warning_propagation = "
f"{enum_to_py_str(node.warning_propagation)}")
return node_var
def _set_settings_defaults(self, node: bpy.types.Node) -> None:
"""
Sets the defaults for any settings a node may have
Parameters:
node (Node): the node object we're copying settings from
node_var (str): name of the variable we're using for the node in our add-on
"""
if node.bl_idname not in self._node_settings:
self._operator.report({'WARNING'},
(f"NodeToPython: couldn't find {node.bl_idname} in "
f"settings. Your Blender version may not be supported"))
return
node_var = self._node_vars[node]
node_info = self._node_settings[node.bl_idname]
for attr_info in node_info.attributes_:
attr_name = attr_info.name_
st = attr_info.st_
version_gte_min = bpy.app.version >= max(attr_info.min_version_, node_info.min_version_)
version_lt_max = bpy.app.version < min(attr_info.max_version_, node_info.max_version_)
is_version_valid = version_gte_min and version_lt_max
if not is_version_valid:
continue
if not hasattr(node, attr_name):
self._operator.report({'WARNING'},
f"NodeToPython: Couldn't find attribute "
f"\"{attr_name}\" for node {node.name} of type "
f"{node.bl_idname}")
continue
attr = getattr(node, attr_name, None)
if attr is None:
continue
setting_str = f"{node_var}.{attr_name}"
"""
A switch statement would've been nice here,
but Blender 3.0 was on Python v3.9
"""
if st == ST.ENUM:
if attr != '':
self._write(f"{setting_str} = {enum_to_py_str(attr)}")
elif st == ST.ENUM_SET:
self._write(f"{setting_str} = {attr}")
elif st == ST.STRING:
self._write(f"{setting_str} = {str_to_py_str(attr)}")
elif st == ST.BOOL or st == ST.INT or st == ST.FLOAT:
self._write(f"{setting_str} = {attr}")
elif st == ST.VEC:
self._write(f"{setting_str} = {vec_to_py_str(attr, len(attr))}")
elif st == ST.VEC1:
self._write(f"{setting_str} = {vec1_to_py_str(attr)}")
elif st == ST.VEC2:
self._write(f"{setting_str} = {vec2_to_py_str(attr)}")
elif st == ST.VEC3:
self._write(f"{setting_str} = {vec3_to_py_str(attr)}")
elif st == ST.VEC4:
self._write(f"{setting_str} = {vec4_to_py_str(attr)}")
elif st == ST.COLOR:
self._write(f"{setting_str} = {color_to_py_str(attr)}")
elif st == ST.EULER:
self._write(f"{setting_str} = {vec3_to_py_str(attr)}")
elif st == ST.MATERIAL:
self._set_if_in_blend_file(attr, setting_str, "materials")
elif st == ST.OBJECT:
self._set_if_in_blend_file(attr, setting_str, "objects")
elif st == ST.COLLECTION:
self._set_if_in_blend_file(attr, setting_str, "collections")
elif st == ST.COLOR_RAMP:
self._color_ramp_settings(node, attr_name)
elif st == ST.CURVE_MAPPING:
self._curve_mapping_settings(node, attr_name)
elif st == ST.NODE_TREE:
self._node_tree_settings(node, attr_name)
elif st == ST.IMAGE:
if attr is None:
continue
if self._operator._addon_dir != "":
if attr.source in {'FILE', 'GENERATED', 'TILED'}:
if self._save_image(attr):
self._load_image(attr, setting_str)
else:
self._set_if_in_blend_file(attr, setting_str, "images")
elif st == ST.IMAGE_USER:
self._image_user_settings(attr, setting_str)
elif st == ST.SIM_OUTPUT_ITEMS:
self._output_zone_items(attr, setting_str, True)
elif st == ST.REPEAT_OUTPUT_ITEMS:
self._output_zone_items(attr, setting_str, False)
elif st == ST.INDEX_SWITCH_ITEMS:
self._index_switch_items(attr, setting_str)
elif st == ST.ENUM_DEFINITION:
self._enum_definition(attr, setting_str)
elif st == ST.BAKE_ITEMS:
self._bake_items(attr, setting_str)
elif st == ST.CAPTURE_ATTRIBUTE_ITEMS:
self._capture_attribute_items(attr, setting_str)
elif st == ST.MENU_SWITCH_ITEMS:
self._menu_switch_items(attr, setting_str)
elif st == ST.FOREACH_GEO_ELEMENT_GENERATION_ITEMS:
self._foreach_geo_element_generation_items(attr, setting_str)
elif st == ST.FOREACH_GEO_ELEMENT_INPUT_ITEMS:
self._foreach_geo_element_input_items(attr, setting_str)
elif st == ST.FOREACH_GEO_ELEMENT_MAIN_ITEMS:
self._foreach_geo_element_main_items(attr, setting_str)
elif st == ST.FORMAT_STRING_ITEMS:
self._format_string_items(attr, setting_str)
elif st == ST.CLOSURE_INPUT_ITEMS:
self._closure_input_items(attr, setting_str)
elif st == ST.CLOSURE_OUTPUT_ITEMS:
self._closure_output_items(attr, setting_str)
elif st == ST.COLOR_MANAGED_DISPLAY_SETTINGS:
self._color_managed_display_settings(attr, setting_str)
elif st == ST.COLOR_MANAGED_VIEW_SETTINGS:
self._color_managed_view_settings(attr, setting_str)
elif st == ST.COMPOSITOR_FILE_OUTPUT_ITEMS:
self._compositor_file_output_items(attr, setting_str)
elif st == ST.EVALUATE_CLOSURE_INPUT_ITEMS:
self._evaluate_closure_input_items(attr, setting_str)
elif st == ST.EVALUATE_CLOSURE_OUTPUT_ITEMS:
self._evaluate_closure_output_items(attr, setting_str)
elif st == ST.FIELD_TO_GRID_ITEMS:
self._field_to_grid_items(attr, setting_str)
elif st == ST.GEOMETRY_VIEWER_ITEMS:
self._geometry_viewer_items(attr, setting_str)
elif st == ST.COMBINE_BUNDLE_ITEMS:
self._combine_bundle_items(attr, setting_str)
elif st == ST.SEPARATE_BUNDLE_ITEMS:
self._separate_bundle_items(attr, setting_str)
elif st == ST.CLOSURE_TO_LIST_ITEMS:
self._closure_to_list_items(attr, setting_str)
elif st == ST.FIELD_TO_LIST_ITEMS:
self._field_to_list_items(attr, setting_str)
elif st == ST.RAYCAST_ATTR_ITEMS:
self._raycast_attr_items(attr, setting_str)
elif st == ST.MENU_INPUT:
self._menu_input(attr, setting_str)
def _set_if_in_blend_file(self, attr, setting_str: str, data_type: str
) -> None:
"""
Attempts to grab referenced thing from blend file
"""
name = str_to_py_str(attr.name)
self._write(f"if {name} in bpy.data.{data_type}:")
self._write(f"{setting_str} = bpy.data.{data_type}[{name}]",
self._operator._inner_indent_level + 1)
def _color_ramp_settings(self, node: bpy.types.Node, color_ramp_name: str) -> None:
"""
Replicate a color ramp node
Parameters
node (Node): node object we're copying settings from
color_ramp_name (str): name of the color ramp to be copied
"""
color_ramp: bpy.types.ColorRamp = getattr(node, color_ramp_name)
if not color_ramp:
raise ValueError(f"No color ramp named \"{color_ramp_name}\" found")
node_var = self._node_vars[node]
# settings
ramp_str = f"{node_var}.{color_ramp_name}"
#color mode
color_mode = enum_to_py_str(color_ramp.color_mode)
self._write(f"{ramp_str}.color_mode = {color_mode}")
#hue interpolation
hue_interpolation = enum_to_py_str(color_ramp.hue_interpolation)
self._write(f"{ramp_str}.hue_interpolation = {hue_interpolation}")
#interpolation
interpolation = enum_to_py_str(color_ramp.interpolation)
self._write(f"{ramp_str}.interpolation = {interpolation}")
self._write("", 0)
# key points
self._write(f"# Initialize color ramp elements")
self._write((f"{ramp_str}.elements.remove"
f"({ramp_str}.elements[0])"))
for i, element in enumerate(color_ramp.elements):
element_var = self._create_var(f"{node_var}_cre_{i}")
if i == 0:
self._write(f"{element_var} = {ramp_str}.elements[{i}]")
self._write(f"{element_var}.position = {element.position}")
else:
self._write(f"{element_var} = {ramp_str}.elements"
f".new({element.position})")
self._write(f"{element_var}.alpha = {element.alpha}")
color_str = vec4_to_py_str(element.color)
self._write(f"{element_var}.color = {color_str}\n")
def _curve_mapping_settings(self, node: bpy.types.Node,
curve_mapping_name: str) -> None:
"""
Sets defaults for Float, Vector, and Color curves
Parameters:
node (Node): curve node we're copying settings from
curve_mapping_name (str): name of the curve mapping to be set
"""
mapping = getattr(node, curve_mapping_name)
if not mapping:
raise ValueError((f"Curve mapping \"{curve_mapping_name}\" not found "
f"in node \"{node.bl_idname}\""))
node_var = self._node_vars[node]
# mapping settings
self._write(f"# Mapping settings")
mapping_var = f"{node_var}.{curve_mapping_name}"
# extend
extend = enum_to_py_str(mapping.extend)
self._write(f"{mapping_var}.extend = {extend}")
# tone
tone = enum_to_py_str(mapping.tone)
self._write(f"{mapping_var}.tone = {tone}")
# black level
b_lvl_str = vec3_to_py_str(mapping.black_level)
self._write(f"{mapping_var}.black_level = {b_lvl_str}")
# white level
w_lvl_str = vec3_to_py_str(mapping.white_level)
self._write(f"{mapping_var}.white_level = {w_lvl_str}")
# minima and maxima
min_x = mapping.clip_min_x
self._write(f"{mapping_var}.clip_min_x = {min_x}")
min_y = mapping.clip_min_y
self._write(f"{mapping_var}.clip_min_y = {min_y}")
max_x = mapping.clip_max_x
self._write(f"{mapping_var}.clip_max_x = {max_x}")
max_y = mapping.clip_max_y
self._write(f"{mapping_var}.clip_max_y = {max_y}")
# use_clip
use_clip = mapping.use_clip
self._write(f"{mapping_var}.use_clip = {use_clip}")
# create curves
for i, curve in enumerate(mapping.curves):
self._create_curve_map(node, i, curve, curve_mapping_name)
# update curve
self._write(f"# Update curve after changes")
self._write(f"{mapping_var}.update()")
def _create_curve_map(self, node: bpy.types.Node, i: int, curve: bpy.types.CurveMap,
curve_mapping_name: str) -> None:
"""
Helper function to create the ith curve of a node's curve mapping
Parameters:
node (Node): the node with a curve mapping
i (int): index of the CurveMap within the mapping
curve (bpy.types.CurveMap): the curve map to recreate
curve_mapping_name (str): attribute name of the recreated curve mapping
"""
node_var = self._node_vars[node]
self._write(f"# Curve {i}")
curve_i_var = self._create_var(f"{node_var}_curve_{i}")
self._write(f"{curve_i_var} = "
f"{node_var}.{curve_mapping_name}.curves[{i}]")
# Remove default points when CurveMap is initialized with more than
# two points (just CompositorNodeHueCorrect)
if (node.bl_idname == 'CompositorNodeHueCorrect'):
self._write(f"for {INDEX} in range"
f"(len({curve_i_var}.points.values()) - 1, 1, -1):")
self._write(f"{curve_i_var}.points.remove("
f"{curve_i_var}.points[{INDEX}])",
self._operator._inner_indent_level + 1)
for j, point in enumerate(curve.points):
self._create_curve_map_point(j, point, curve_i_var)
def _create_curve_map_point(self, j: int, point: bpy.types.CurveMapPoint,
curve_i_var: str) -> None:
"""
Helper function to recreate a curve map point
Parameters:
j (int): index of the point within the curve map
point (CurveMapPoint): point to recreate
curve_i_var (str): variable name of the point's curve map
"""
point_j_var = self._create_var(f"{curve_i_var}_point_{j}")
loc = point.location
loc_str = f"{loc[0]}, {loc[1]}"
if j < 2:
self._write(f"{point_j_var} = {curve_i_var}.points[{j}]")
self._write(f"{point_j_var}.location = ({loc_str})")