from .utilities import prRed, prGreen, prPurple, prWhite, prOrange, \ wrapRed, wrapGreen, wrapPurple, wrapWhite, wrapOrange # this function is kind of confusing and is very important, # so it bears a full explanation: its purpose is to connect # the links going into a group to the nodes in that group. # FIRST we connect all the incoming links into the Group Node to # a Group Interface node that does nothing but mark the entrance. # Then, we connect all the outgoing links back to the nodes # that had incoming links, so the nodes OUTSIDE the Node Group # are connected directly to BOTH the GroupInterface and the # nodes INSIDE the node group. # we give the GroupInterface nodes an obscenely high # multi_input_sort_id so that they are always last. # but since these links are going IN, they shouldn't cause any problems. # the sub_sort_id is set here in case there are UI links which represent # multiple Mantis links - the mantis links are sorted within the UI links # and the UI links are sorted as normal, so all the links are in the right # order.... probably. BUG here? # I want the Group Interface nodes to be part of the hierarchy... # but I want to cut the links. hmmm what to do? Fix it if it causes problems. # solution to hypothetical BUG could be to do traversal on the links # instead of the sockets. def grp_node_reroute_common(in_node, out_node, interface): from .base_definitions import links_sort_key for in_node_input in in_node.inputs: i = 0 if len(in_node_input.links)>1: # sort here to ensure correct sub_sort_id in_node_input.links.sort(key=links_sort_key) while (in_node_input.links): in_link = in_node_input.links.pop() from_node = in_link.from_node; from_socket = in_link.from_socket link = from_node.outputs[from_socket].connect( interface,in_node_input.name, sort_id = 2**16, sub_sort_id=i) i += 1; in_link.die() for out_node_output in out_node.outputs: while (out_node_output.links): out_link = out_node_output.links.pop() to_node = out_link.to_node; to_socket = out_link.to_socket for j, l in enumerate(interface.inputs[out_node_output.name].links): # we are connecting the link from the ORIGINAL output to the FINAL input. link = l.from_node.outputs[l.from_socket].connect( to_node, to_socket, sort_id = out_link.multi_input_sort_id) link.sub_sort_id = j out_link.die() def reroute_links_grp(group, all_nodes): from .internal_containers import GroupInterface interface = GroupInterface( ( *group.signature, "InputInterface"), group.base_tree, group.prototype, 'INPUT',) all_nodes[interface.signature] = interface if group.inputs: if group_input := all_nodes.get(( *group.signature, "NodeGroupInput")): grp_node_reroute_common(group, group_input, interface) else: raise RuntimeError("internal error: failed to enter a node group ") def reroute_links_grpout(group_output, all_nodes): if (group := all_nodes.get( ( *group_output.signature[:-1],) )): from .internal_containers import GroupInterface interface = GroupInterface( ( *group.signature, "OutputInterface"), group.base_tree, group.prototype, 'OUTPUT',) all_nodes[interface.signature] = interface grp_node_reroute_common(group_output, group, interface) else: prOrange(f"WARN: unconnected outputs from a node group " "(maybe you are running the tree from inside a node group?)") # FIXME I don't think these signatures are unique. # TODO this is a really silly and bad and also really dumb way to do this def insert_lazy_parents(nc): from .link_nodes import LinkInherit inherit_nc = None if nc.inputs["Relationship"].is_connected: from .node_container_common import trace_single_line node_line, last_socket = trace_single_line(nc, 'Relationship') # if last_socket is from a valid XFORM, it is the relationship in # because it was traversed from the xForm Out... so get the traverse target. if last_socket.traverse_target is None: return # this is not a valid lazy parent. for other_node in node_line[1:]: # skip the first one, it is the same node if other_node.node_type == 'LINK': return # this one has a realtionship connection. elif other_node.node_type == 'XFORM': break if other_node.node_type in ["XFORM"] and last_socket.traverse_target.name in ["xForm Out"]: for link in other_node.outputs['xForm Out'].links: if link.to_node == nc: link.die() inherit_nc = LinkInherit(("MANTIS_AUTOGENERATED", *nc.signature[1:], "LAZY_INHERIT"), nc.base_tree) l = other_node.outputs['xForm Out'].connect(inherit_nc, 'Parent') l1 = inherit_nc.outputs['Inheritance'].connect(nc, 'Relationship') inherit_nc.parameters = { "Parent":None, "Inherit Rotation":True, "Inherit Scale":'FULL', "Connected":False, } # because the from node may have already been done. init_connections(other_node); init_dependencies(other_node) init_connections(inherit_nc); init_dependencies(inherit_nc) return inherit_nc # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # # DATA FROM NODES # # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # from .base_definitions import replace_types, NodeSocket def autogen_node(base_tree, ui_socket, signature, mContext): mantis_node=None from .internal_containers import AutoGenNode mantis_node = AutoGenNode(signature, base_tree) mantis_node.mContext = mContext mantis_node.outputs.init_sockets([ui_socket.name]) mantis_node.ui_signature = None # does not exist in the UI return mantis_node # TODO: investigate whether I can set the properties in the downstream nodes directly. # I am doing this in Schema Solver and it seems to work quite efficiently. def make_connections_to_ng_dummy(base_tree, tree_path_names, local_nc, all_nc, nc_to): from .socket_definitions import no_default_value for inp in nc_to.prototype.inputs: if inp.bl_idname in no_default_value: continue nc_from = None to_s = inp.identifier if not inp.is_linked: # make an autogenerated NC for the inputs of the group node # This can be run inside schema. Make it unique with uuid() to be safe. from uuid import uuid4 signature = ("MANTIS_AUTOGENERATED", *tree_path_names, nc_to.ui_signature[-1], inp.name, inp.identifier, str(uuid4())) nc_from = all_nc.get(signature) # creating this without checking and # using UUID signature leads to TERRIBLE CONFUSING BUGS. if nc_from is None: nc_from = autogen_node(base_tree, inp, signature, nc_to.mContext) from .node_container_common import get_socket_value if nc_from: # autogen can fail and we should catch it. nc_from.parameters = {inp.name:get_socket_value(inp)} local_nc[signature] = nc_from; all_nc[signature] = nc_from nc_from.outputs[inp.name].connect(node=nc_to, socket=to_s, sort_id=0) else: prRed("No available auto-generated class for input %s in %s" % (inp.name, np.name)) def gen_mantis_nodes(base_tree, current_tree, tree_path_names, mContext, all_nc, local_nc, dummy_nodes, group_nodes, schema_nodes ): from .internal_containers import DummyNode for ui_node in current_tree.nodes: # HACK I found that this isn't being set sometimes. I wonder why? It makes the most sense to do this here. if hasattr(ui_node, 'initialized'): ui_node.initialized=True # end HACK. TODO: find out why this is not set sometimes. This is only needed for UI socket change updates. if ui_node.bl_idname in ["NodeFrame", "NodeReroute"]: continue # not a Mantis Node if ui_node.bl_idname in ["NodeGroupInput", "NodeGroupOutput"]: # we only want ONE dummy in/out per tree_path, so use the bl_idname to make a Dummy node sig = (None, *tree_path_names, ui_node.bl_idname) ui_sig = (None, *tree_path_names, ui_node.name) if not local_nc.get(sig): nc = DummyNode( signature=sig , base_tree=base_tree, prototype=ui_node, ui_signature=ui_sig ) nc.mContext = mContext local_nc[sig] = nc; all_nc[sig] = nc; dummy_nodes[sig] = nc if ui_node.bl_idname in ["NodeGroupOutput"]: nc.reroute_links = reroute_links_grpout elif ui_node.bl_idname in ["MantisNodeGroup", "MantisSchemaGroup"]: nc = DummyNode( signature= (sig := (None, *tree_path_names, ui_node.name) ), base_tree=base_tree, prototype=ui_node ) nc.mContext = mContext local_nc[sig] = nc; all_nc[sig] = nc; dummy_nodes[sig] = nc make_connections_to_ng_dummy(base_tree, tree_path_names, local_nc, all_nc, nc) # This will catch any variable set in a non-schema node-group. from .utilities import set_string_variables_at_creation_time set_string_variables_at_creation_time(nc, ui_node, mContext) if ui_node.bl_idname == "MantisNodeGroup": group_nodes.append(nc) nc.reroute_links = reroute_links_grp else: group_nodes.append(nc) schema_nodes[sig] = nc # if it wasn't the types we ignore or the types we make a Dummy for, use this to catch all non-special cases. elif (nc_cls := ui_node.mantis_class): sig = (None, *tree_path_names, ui_node.name) if ui_node.bl_idname in replace_types: sig = (None, *tree_path_names, ui_node.bl_idname) if local_nc.get(sig): continue # already made nc = nc_cls( sig , base_tree) nc.mContext = mContext local_nc[sig] = nc; all_nc[sig] = nc nc.ui_signature = (*nc.ui_signature[:-1], ui_node.name) # just to ensure it points to a real node. else: nc = None prRed(f"Can't make nc for.. {ui_node.bl_idname}") # this should be done at init if nc.signature[0] not in ['MANTIS_AUTOGENERATED'] and nc.node_type not in ['SCHEMA', 'DUMMY', 'DUMMY_SCHEMA']: nc.fill_parameters() def data_from_tree(base_tree, tree_path, mContext, dummy_nodes, all_nc, all_schema):# # TODO: it should be relatively easy to make this use a while loop instead of recursion. local_nc, group_nodes = {}, [] tree_path_names = [tree.name for tree in tree_path if hasattr(tree, "name")] if tree_path[-1]: current_tree = tree_path[-1].node_tree # this may be None. else: current_tree = base_tree # if current_tree: # the node-group may not have a tree set - if so, ignore it. from .utilities import clear_reroutes links = clear_reroutes(list(current_tree.links)) gen_mantis_nodes(base_tree, current_tree, tree_path_names, mContext, all_nc, local_nc, dummy_nodes, group_nodes, all_schema) from .utilities import link_node_containers for link in links: link_node_containers((None, *tree_path_names), link, local_nc) if current_tree == base_tree: # in the base tree, we need to auto-gen the default values in a slightly different way to node groups. insert_default_values_base_tree(base_tree, all_nc) # Now, descend into the Node Groups and recurse for nc in group_nodes: data_from_tree(base_tree, tree_path+[nc.prototype], mContext, dummy_nodes, all_nc, all_schema) return dummy_nodes, all_nc, all_schema from .utilities import check_and_add_root, init_connections, init_dependencies, init_schema_dependencies def is_signature_in_other_signature(parent_signature, child_signature): # If the other signature is shorter, it isn't a child node if len(parent_signature) > len(child_signature): return False return parent_signature[0:] == child_signature[:len(parent_signature)] def solve_schema_to_tree(nc, all_nc, roots=[], error_popups=False): from .utilities import get_node_prototype np = get_node_prototype(nc.signature, nc.base_tree) from .schema_solve import SchemaSolver solver = SchemaSolver(nc, all_nc.copy(), np, error_popups=error_popups) try: solved_nodes = solver.solve() except Exception as e: # # the schema will run the error cleanup code, we just need to raise or not solved_nodes = {} nc.base_tree.hash='' raise execution_error_cleanup(nc, e, show_error=error_popups) # maybe this should be done in schema solver. TODO invesitigate a more efficient way del_me = [] for k, v in all_nc.items(): # delete all the schema's prototype and interface nodes. The links have already been deleted by the solver. if v.signature[0] not in ['MANTIS_AUTOGENERATED'] and is_signature_in_other_signature(nc.signature, k): del_me.append(k) for k in del_me: del all_nc[k] for k,v in solved_nodes.items(): all_nc[k]=v init_connections(v) check_and_add_root(v, roots, include_non_hierarchy=True) return solved_nodes # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # # PARSE NODE TREE # # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # *** # schema_bl_idnames = [ "SchemaIndex", "SchemaArrayInput", "SchemaArrayInputGet", "SchemaArrayInputAll", "SchemaArrayOutput", "SchemaConstInput", "SchemaConstOutput", "SchemaOutgoingConnection", "SchemaIncomingConnection", ] from .utilities import get_all_dependencies def get_schema_length_dependencies(node, all_nodes={}): """ Get a list of all dependencies for the given node's length or array properties. This function will also recursively search for dependencies in its sub-trees. """ deps = [] prepare_links_to = ['Schema Length', 'Array', 'Index'] def extend_dependencies_from_inputs(node): for inp in node.inputs.values(): for l in inp.links: if not l.from_node in node.hierarchy_dependencies: continue if "MANTIS_AUTOGENERATED" in l.from_node.signature: deps.extend([l.from_node]) # why we need this lol if inp.name in prepare_links_to: deps.append(l.from_node) deps.extend(get_all_dependencies(l.from_node)) def deps_filter(dep): # remove any nodes inside the schema if len(dep.signature) > len(node.signature): for i in range(len(node.signature)): dep_sig_elem, node_sig_elem = dep.signature[i], node.signature[i] if dep_sig_elem != node_sig_elem: break # they don't match, it isn't an inner-node else: # remove this, it didn't break, meaning it shares signature with outer node return False # this is an inner-node return True # this way we can handle Schema and Array Get nodes with one function extend_dependencies_from_inputs(node) if node.node_type == 'DUMMY_SCHEMA': trees = [(node.prototype.node_tree, node.signature)] # this is UI data while trees: tree, tree_signature = trees.pop() for sub_ui_node in tree.nodes: if sub_ui_node.bl_idname in ['NodeReroute', 'NodeFrame']: continue if sub_ui_node.bl_idname in schema_bl_idnames: sub_node = all_nodes[(*tree_signature, sub_ui_node.bl_idname)] else: sub_node = all_nodes[(*tree_signature, sub_ui_node.name)] if sub_node.node_type == 'DUMMY_SCHEMA': extend_dependencies_from_inputs(sub_node) trees.append((sub_node.prototype.node_tree, sub_node.signature)) return list(filter(deps_filter, deps)) def insert_default_values_base_tree(base_tree, all_mantis_nodes): # we can get this by name because group inputs are gathered to the bl_idname InputNode = all_mantis_nodes.get((None, 'NodeGroupInput')) if InputNode is None: return # nothing to do here. ui_node = InputNode.prototype for i, output in enumerate(InputNode.outputs): ui_output = ui_node.outputs[i] # I need this for the error messages to make sense assert ui_output.identifier == output.name, "Cannot find UI Socket for Default Value" for interface_item in base_tree.interface.items_tree: if interface_item.item_type == 'PANEL': continue if interface_item.identifier == output.name: break else: raise RuntimeError(f"Default value {ui_output.name} does not exist in {base_tree.name} ") if interface_item.item_type == "PANEL": raise RuntimeError(f"Cannot get default value for {ui_output.name} in {base_tree.name} ") default_value = None from bpy.types import bpy_prop_array from mathutils import Vector val_type = None if hasattr(ui_output, 'default_value'): val_type = type(ui_output.default_value) # why tf can't I match/case here? if val_type is bool: default_value = interface_item.default_bool elif val_type is int: default_value = interface_item.default_int elif val_type is float: default_value = interface_item.default_float elif val_type is Vector: default_value = interface_item.default_vector elif val_type is str: default_value = interface_item.default_string elif val_type is bpy_prop_array: default_value = interface_item.default_bool_vector elif interface_item.bl_socket_idname == "xFormSocket": if interface_item.default_xForm == 'ARMATURE': default_value = 'MANTIS_DEFAULT_ARMATURE' else: raise RuntimeError(f"No xForm connected for {ui_output.name} in {base_tree.name}.") else: raise RuntimeError(f"Cannot get default value for {ui_output.name} in {base_tree.name} ") output_name = output.name if interface_item.bl_socket_idname not in ['xFormSocket']: signature = ("MANTIS_AUTOGENERATED", f"Default Value {output.name}",) autogen_mantis_node = all_mantis_nodes.get(signature) if autogen_mantis_node is None: autogen_mantis_node = autogen_node(base_tree, output, signature, InputNode.mContext) autogen_mantis_node.parameters[output_name]=default_value elif interface_item.bl_socket_idname == 'xFormSocket' \ and default_value == 'MANTIS_DEFAULT_ARMATURE': signature = ("MANTIS_AUTOGENERATED", "MANTIS_DEFAULT_ARMATURE",) autogen_mantis_node = all_mantis_nodes.get(signature) if autogen_mantis_node is None: from .xForm_nodes import xFormArmature autogen_mantis_node = xFormArmature(signature, base_tree) autogen_mantis_node.parameters['Name']=base_tree.name+'_MANTIS_AUTOGEN' autogen_mantis_node.mContext = InputNode.mContext from mathutils import Matrix autogen_mantis_node.parameters['Matrix'] = Matrix.Identity(4) output_name = 'xForm Out' while output.links: l = output.links.pop() to_node = l.to_node; to_socket = l.to_socket l.die() autogen_mantis_node.outputs[output_name].connect(to_node, to_socket) init_connections(l.from_node); init_dependencies(l.from_node) all_mantis_nodes[autogen_mantis_node.signature]=autogen_mantis_node def parse_tree(base_tree, error_popups=False): from uuid import uuid4 base_tree.execution_id = uuid4().__str__() # set the unique id of this execution from .base_definitions import MantisExecutionContext mContext = MantisExecutionContext(base_tree=base_tree) import time data_start_time = time.time() # annoyingly I have to pass in values for all of the dicts because if I initialize them in the function call # then they stick around because the function definition inits them once and keeps a reference # so instead I have to supply them to avoid ugly code or bugs elsewhere # it's REALLY confusing when you run into this sort of problem. So it warrants four entire lines of comments! dummy_nodes, all_mantis_nodes, all_schema = data_from_tree(base_tree, tree_path = [None], mContext=mContext, dummy_nodes = {}, all_nc = {}, all_schema={}) for dummy in dummy_nodes.values(): # reroute the links in the group nodes if (hasattr(dummy, "reroute_links")): dummy.reroute_links(dummy, all_mantis_nodes) prGreen(f"Pulling data from tree took {time.time() - data_start_time} seconds") start_time = time.time() solve_only_these = []; solve_only_these.extend(list(all_schema.values())) roots, array_nodes = [], [] from collections import deque unsolved_schema = deque() from .base_definitions import array_output_types, GraphError for mantis_node in all_mantis_nodes.values(): # add the Mantis Context here, so that it available during parsing. mantis_node.mContext = mContext if mantis_node.node_type in ["DUMMY"]: # clean up the groups if mantis_node.prototype.bl_idname in ("MantisNodeGroup", "NodeGroupOutput"): continue # Initialize the dependencies and connections (from/to links) for each node. # we record & store it because using a getter is much slower (according to profiling) init_dependencies(mantis_node); init_connections(mantis_node) check_and_add_root(mantis_node, roots, include_non_hierarchy=True) # Array nodes need a little special treatment, they're quasi-schemas if mantis_node.__class__.__name__ in array_output_types: solve_only_these.append(mantis_node) array_nodes.append(mantis_node) from itertools import chain for schema in chain(all_schema.values(), array_nodes): # We must remove the schema/array nodes that are inside a schema tree. for i in range(len(schema.signature)-1): # -1, we don't want to check this node, obviously if parent := all_schema.get(schema.signature[:i+1]): # This will be solved along with its parent schema. solve_only_these.remove(schema) break for schema in all_schema.values(): if schema not in solve_only_these: continue init_schema_dependencies(schema, all_mantis_nodes) solve_only_these.extend(get_schema_length_dependencies(schema, all_mantis_nodes)) unsolved_schema.append(schema) for array in array_nodes: if array not in solve_only_these: continue solve_only_these.extend(get_schema_length_dependencies(array)) solve_only_these.extend(array_nodes) schema_solve_done = set() solve_only_these = set(solve_only_these) solve_layer = unsolved_schema.copy(); solve_layer.extend(roots) while(solve_layer): n = solve_layer.pop() if n not in solve_only_these: continue if n.signature in all_schema.keys(): for dep in n.hierarchy_dependencies: if dep not in schema_solve_done and (dep in solve_only_these): if dep.prepared: continue solve_layer.appendleft(n) break else: try: solved_nodes = solve_schema_to_tree(n, all_mantis_nodes, roots, error_popups=error_popups) except Exception as e: e = execution_error_cleanup(n, e, show_error=error_popups) solved_nodes = {} if error_popups == False: raise e return # break out of this function regardless. unsolved_schema.remove(n) schema_solve_done.add(n) for node in solved_nodes.values(): init_dependencies(node); init_connections(node) solve_layer.appendleft(node) schema_solve_done.add(node) # CRITICAL to prevent freezes. for conn in n.hierarchy_connections: if conn not in schema_solve_done and conn not in solve_layer: solve_layer.appendleft(conn) continue else: for dep in n.hierarchy_dependencies: if dep not in schema_solve_done: break else: try: n.bPrepare() except Exception as e: e = execution_error_cleanup(n, e, show_error=error_popups) if error_popups == False: raise e schema_solve_done.add(n) for conn in n.hierarchy_connections: if conn not in schema_solve_done and conn not in solve_layer: solve_layer.appendleft(conn) continue if unsolved_schema: raise RuntimeError("Failed to resolve all schema declarations") # I had a problem with this looping forever. I think it is resolved... but I don't know lol all_mantis_nodes = list(all_mantis_nodes.values()) kept_nc = {} while (all_mantis_nodes): nc = all_mantis_nodes.pop() if nc in array_nodes: continue if nc.node_type in ['SCHEMA', 'DUMMY_SCHEMA']: # this is BAD because it "deletes" this implicitly instead of explicitly continue # screen out the prototype schema nodes and schema nodes if nc.node_type in ['DUMMY']: if nc.signature[-1] in ["NodeGroupInput", "NodeGroupOutput"]: continue else: prGreen(nc) # but this doesn't have any links at this point? # hold it. its purpose is to gather its string variables at runtime pass # cleanup autogen nodes if nc.signature[0] == "MANTIS_AUTOGENERATED" and len(nc.inputs) == 0 and len(nc.outputs) == 1: from .base_definitions import can_remove_socket_for_autogen output=list(nc.outputs.values())[0] value=list(nc.parameters.values())[0] # We can remove this node if it is safe to push it into the other node's socket. keep_me = False for l in output.links: to_node = l.to_node; to_socket = l.to_socket # do not remove the socket if it is a custom property. if not can_remove_socket_for_autogen(to_node, to_socket): keep_me = True; continue l.die() to_node.parameters[to_socket] = value del to_node.inputs[to_socket] init_dependencies(to_node) # to remove the autogen node we no longer need. if not keep_me: continue init_connections(nc) # because we have removed many connections. if (nc.node_type in ['XFORM']) and ("Relationship" in nc.inputs.keys()): if (new_nc := insert_lazy_parents(nc)): kept_nc[new_nc.signature]=new_nc # be sure to add the Mantis context. new_nc.mContext =mContext kept_nc[nc.signature]=nc prWhite(f"Parsing tree took {time.time()-start_time} seconds.") prWhite("Number of Nodes: %s" % (len(kept_nc))) return kept_nc from .utilities import switch_mode def execution_error_cleanup(node, exception, switch_objects = [], show_error=False ): from bpy import context ui_sig = None if show_error: # show a popup and select the relevant nodes if node: if node.mContext: if node.mContext.execution_failed==True: # already have an error, pass it to avoid printing return # a second error (it's confusing to users.) node.mContext.execution_failed=True ui_sig = node.ui_signature # TODO: see about zooming-to-node. base_tree = node.base_tree tree = base_tree try: pass space = context.space_data for name in ui_sig[1:]: for n in tree.nodes: n.select = False n = tree.nodes[name] n.select = True tree.nodes.active = n if hasattr(n, "node_tree"): tree = n.node_tree except AttributeError: # not being run in node graph pass finally: def error_popup_draw(self, context): self.layout.label(text=f"Error: {exception}") self.layout.label(text=f"see node: {ui_sig[1:]}.") context.window_manager.popup_menu(error_popup_draw, title="Error", icon='ERROR') switch_mode(mode='OBJECT', objects=switch_objects) for ob in switch_objects: ob.data.pose_position = 'POSE' prRed(f"Error: {exception} in node {ui_sig}") return exception def sort_execution(nodes, xForm_pass): execution_failed=False sorted_nodes = [] from .node_container_common import GraphError # check for cycles here by keeping track of the number of times a node has been visited. visited={} check_max_len=len(nodes)**2 # seems too high but safe. In a well-ordered graph, I guess this number should be less than the number of nodes. max_iterations = len(nodes)**2 i = 0 while(xForm_pass): if execution_failed: break if i >= max_iterations: execution_failed = True raise GraphError("There is probably a cycle somewhere in the graph. " "Or a connection missing in a Group/Schema Input") i+=1 n = xForm_pass.pop() if visited.get(n.signature) is not None: visited[n.signature]+=1 else: visited[n.signature]=0 if visited[n.signature] > check_max_len: execution_failed = True raise GraphError("There is a probably a cycle in the graph somewhere. " "Or a connection missing in a Group/Schema Input") # we're trying to solve the halting problem at this point.. don't do that. # TODO find a better way! there are algo's for this but they will require using a different solving algo, too if n.execution_prepared: continue if n.node_type not in ['XFORM', 'UTILITY']: for dep in n.hierarchy_dependencies: if not dep.execution_prepared: xForm_pass.appendleft(n) # hold it break else: n.execution_prepared=True sorted_nodes.append(n) for conn in n.hierarchy_connections: if not conn.execution_prepared: xForm_pass.appendleft(conn) else: for dep in n.hierarchy_dependencies: if not dep.execution_prepared: break else: n.execution_prepared=True sorted_nodes.append(n) for conn in n.hierarchy_connections: if not conn.execution_prepared: xForm_pass.appendleft(conn) return sorted_nodes, execution_failed def execute_tree(nodes, base_tree, context, error_popups = False): assert nodes is not None, "Failed to parse tree." assert len(nodes) > 0, "No parsed nodes for execution."\ " Mantis probably failed to parse the tree." import bpy from time import time from .node_container_common import GraphError original_active = context.view_layer.objects.active start_execution_time = time() mContext = None from collections import deque xForm_pass = deque() for nc in nodes.values(): if not mContext: # just grab one of these. this is a silly way to do this. mContext = nc.mContext mContext.b_objects = {} # clear the objects and recreate them nc.reset_execution() check_and_add_root(nc, xForm_pass) mContext.execution_failed = False select_me, switch_me = [], [] # switch the mode on these objects active = None # only need it for switching modes try: sorted_nodes, execution_failed = sort_execution(nodes, xForm_pass) for n in sorted_nodes: try: if not n.prepared: n.bPrepare(context) if not n.executed: n.bTransformPass(context) if (n.__class__.__name__ == "xFormArmature" ): ob = n.bGetObject() switch_me.append(ob) active = ob if not (n.__class__.__name__ == "xFormBone" ) and hasattr(n, "bGetObject"): ob = n.bGetObject() if isinstance(ob, bpy.types.Object): select_me.append(ob) except Exception as e: e = execution_error_cleanup(n, e, show_error=error_popups) if error_popups == False: raise e execution_failed = True; break switch_mode(mode='POSE', objects=switch_me) for n in sorted_nodes: try: if not n.prepared: n.bPrepare(context) if not n.executed: n.bRelationshipPass(context) except Exception as e: e = execution_error_cleanup(n, e, show_error=error_popups) if error_popups == False: raise e execution_failed = True; break switch_mode(mode='OBJECT', objects=switch_me) # switch to pose mode here so that the nodes can use the final pose data # this will require them to update the depsgraph. for ob in switch_me: ob.data.pose_position = 'POSE' for n in sorted_nodes: try: n.bFinalize(context) except Exception as e: e = execution_error_cleanup(n, e, show_error=error_popups) if error_popups == False: raise e execution_failed = True; break # REST pose for deformer bind, so everything is in the rest position for ob in switch_me: ob.data.pose_position = 'REST' # finally, apply modifiers and bind stuff for n in sorted_nodes: try: n.bModifierApply(context) except Exception as e: e = execution_error_cleanup(n, e, show_error=error_popups) if error_popups == False: raise e execution_failed = True; break for ob in switch_me: ob.data.pose_position = 'POSE' tot_time = (time() - start_execution_time) if not execution_failed: prGreen(f"Executed tree of {len(sorted_nodes)} nodes in {tot_time} seconds") if (original_active): context.view_layer.objects.active = original_active original_active.select_set(True) except Exception as e: e = execution_error_cleanup(None, e, switch_me, show_error=error_popups) if error_popups == False: raise e prRed(f"Failed to execute tree.") finally: context.view_layer.objects.active = active # clear the selection first. from itertools import chain for ob in context.selected_objects: try: ob.select_set(False) except RuntimeError: # it isn't in the view layer pass for ob in chain(select_me, mContext.b_objects.values()): try: ob.select_set(True) except RuntimeError: # it isn't in the view layer pass