Nathan
212 lines
8.0 KiB
Python
212 lines
8.0 KiB
Python
# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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"""Character migrator: migrate animation, constraints, relations from original to replacement armature."""
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import bpy
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from ..utils import descendants
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def get_pair_manual(context):
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"""Return (orig_armature, rep_armature) from scene props, or (None, None)."""
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props = getattr(context.scene, "dynamic_link_manager", None)
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if not props:
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return None, None
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orig = getattr(props, "original_character", None)
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rep = getattr(props, "replacement_character", None)
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if orig and orig.type == "ARMATURE" and rep and rep.type == "ARMATURE":
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return orig, rep
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return None, None
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def get_pair_automatic(context):
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"""Discover one pair by convention: Name_Rigify and Name_Rigify.001. Returns (orig, rep) or (None, None)."""
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pairs = []
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for obj in bpy.data.objects:
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if obj.type != "ARMATURE":
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continue
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name = obj.name
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if name.endswith("_Rigify.001"):
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base = name[:-len("_Rigify.001")]
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orig = bpy.data.objects.get(f"{base}_Rigify")
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if orig and orig.type == "ARMATURE" and orig != obj:
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pairs.append((orig, obj))
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return pairs[0] if pairs else (None, None)
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def run_step_1(orig, rep):
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"""Copy armature object attributes: location, rotation, scale."""
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rep.location = orig.location.copy()
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if orig.rotation_mode == "QUATERNION":
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rep.rotation_quaternion = orig.rotation_quaternion.copy()
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else:
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rep.rotation_euler = orig.rotation_euler.copy()
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rep.scale = orig.scale.copy()
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def run_step_2(orig, rep):
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"""Migrate NLA: copy tracks and strips to replacement."""
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if not orig.animation_data or not orig.animation_data.nla_tracks:
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return
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if rep.animation_data is None:
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rep.animation_data_create()
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for track in list(rep.animation_data.nla_tracks):
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rep.animation_data.nla_tracks.remove(track)
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prev_track = None
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for track in orig.animation_data.nla_tracks:
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new_track = rep.animation_data.nla_tracks.new(prev=prev_track)
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new_track.name = track.name
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new_track.mute = track.mute
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new_track.is_solo = track.is_solo
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new_track.lock = track.lock
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for strip in track.strips:
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new_strip = new_track.strips.new(strip.name, int(strip.frame_start), strip.action)
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new_strip.blend_type = strip.blend_type
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new_strip.extrapolation = strip.extrapolation
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new_strip.frame_end = strip.frame_end
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new_strip.blend_in = strip.blend_in
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new_strip.blend_out = strip.blend_out
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new_strip.repeat = strip.repeat
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prev_track = new_track
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EXCLUDE_PROPS = {"_RNA_UI", "rigify_type", "rigify_parameters"}
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def run_step_3(orig, rep):
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"""Custom properties: copy pose-bone custom props, exclude rigify internals."""
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for pbone in orig.pose.bones:
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if pbone.name not in rep.pose.bones:
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continue
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rbone = rep.pose.bones[pbone.name]
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for key in list(pbone.keys()):
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if key in EXCLUDE_PROPS:
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continue
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try:
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rbone[key] = pbone[key]
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except Exception:
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pass
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def run_step_4(orig, rep, orig_to_rep):
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"""Bone constraints: remove stale on rep, copy from orig with retarget, trim duplicates."""
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other_originals = [o for o in orig_to_rep if o != orig]
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for pb in rep.pose.bones:
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to_remove = [c for c in pb.constraints if getattr(c, "target", None) in other_originals]
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for c in to_remove:
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pb.constraints.remove(c)
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for pbone in orig.pose.bones:
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if pbone.name not in rep.pose.bones:
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continue
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rbone = rep.pose.bones[pbone.name]
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for c in pbone.constraints:
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if getattr(c, "target", None) == orig:
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continue
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nc = rbone.constraints.new(type=c.type)
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nc.name = c.name
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nc.mute = c.mute
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nc.influence = c.influence
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t = getattr(c, "target", None)
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if t is not None and t in orig_to_rep:
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nc.target = orig_to_rep[t]
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elif getattr(nc, "target", None) is not None and t:
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nc.target = t
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if hasattr(c, "subtarget") and c.subtarget:
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nc.subtarget = c.subtarget
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for prop in ("head_tail", "use_bone_object", "invert_x", "invert_y", "invert_z"):
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if hasattr(c, prop):
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try:
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setattr(nc, prop, getattr(c, prop))
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except Exception:
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pass
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for pb in orig.pose.bones:
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if pb.name not in rep.pose.bones:
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continue
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ro, rr = pb.constraints, rep.pose.bones[pb.name].constraints
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while len(rr) > len(ro):
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rr.remove(rr[-1])
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def run_step_5(orig, rep, rep_descendants, orig_to_rep):
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"""Retarget relations: parents, constraint targets, Armature modifiers to rep."""
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candidates = set(rep_descendants)
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for ob in bpy.data.objects:
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if getattr(ob.parent, "name", None) == orig.name:
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candidates.add(ob)
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for c in getattr(ob, "constraints", []):
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if getattr(c, "target", None) == orig:
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candidates.add(ob)
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for ob in candidates:
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if ob.parent == orig:
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ob.parent = rep
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for c in getattr(ob, "constraints", []):
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if getattr(c, "target", None) == orig:
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c.target = rep
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if ob.type == "MESH" and ob.modifiers:
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for m in ob.modifiers:
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if getattr(m, "object", None) == orig:
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m.object = rep
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def run_step_6(orig, rep, rep_descendants):
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"""Replacement base body: library override only, then shape-key action."""
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for ob in rep_descendants:
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if ob.type != "MESH":
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continue
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name_lower = (ob.name + " " + (ob.data.name if ob.data else "")).lower()
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if "body" not in name_lower or "base" not in name_lower:
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continue
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if ob.modifiers:
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for m in ob.modifiers:
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if m.type == "ARMATURE" and m.object == rep:
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break
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else:
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continue
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if getattr(ob.data, "library", None) or getattr(ob.data, "override_library", None):
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try:
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ob.data.override_create()
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except Exception:
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pass
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if ob.data.shape_keys:
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if not ob.data.shape_keys.animation_data:
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ob.data.shape_keys.animation_data_create()
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body_name = ob.name
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action = (
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bpy.data.actions.get(body_name + "Action")
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or bpy.data.actions.get(ob.data.name + "Action")
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or bpy.data.actions.get(body_name + "Action.001")
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)
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if action:
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ob.data.shape_keys.animation_data.action = action
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def run_full_migration(context):
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"""
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Run the full 7-step character migration for the single pair (manual or automatic).
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Returns (True, message) on success, (False, error_message) on failure.
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"""
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props = getattr(context.scene, "dynamic_link_manager", None)
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use_auto = props and getattr(props, "migrator_mode", False)
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orig, rep = (get_pair_automatic(context) if use_auto else get_pair_manual(context))
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if not orig or not rep:
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return False, "No character pair (set Original/Replacement or enable Automatic)."
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if orig == rep:
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return False, "Original and replacement must be different armatures."
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orig_to_rep = {orig: rep}
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rep_descendants = descendants(rep)
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try:
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run_step_1(orig, rep)
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run_step_2(orig, rep)
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run_step_3(orig, rep)
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run_step_4(orig, rep, orig_to_rep)
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run_step_5(orig, rep, rep_descendants, orig_to_rep)
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run_step_6(orig, rep, rep_descendants)
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except Exception as e:
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return False, str(e)
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return True, f"Migrated {orig.name} → {rep.name}"
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