ue 操作 metahuman

操作张嘴：

import unreal

ACTOR_NAME = "BP_Bernice_C_UAID_24B2B9B96FE856AF02_1876048431"

subsystem = unreal.get_editor_subsystem(unreal.EditorActorSubsystem)
actors = subsystem.get_all_level_actors()

actor = None
for a in actors:
    if a.get_name() == ACTOR_NAME:
        actor = a
        break

if not actor:
    unreal.log_error("Actor not found")
    raise SystemExit

# MetaHuman 的脸一般在 Face SkeletalMeshComponent 上
face_mesh = None
for comp in actor.get_components_by_class(unreal.SkeletalMeshComponent):
    if "Face" in comp.get_name():
        unreal.log("find face")
        face_mesh = comp
        break

if not face_mesh:
    unreal.log_error("Face SkeletalMeshComponent not found")
    raise SystemExit

# 张嘴
face_mesh.set_morph_target("jawOpen", 1.0)

unreal.log("MetaHuman mouth opened")