fix(rendering): complete character visual regression fixes

project/ui/char_select_screen.gd

@@ -238,7 +238,7 @@ func _build_stage() -> void:
 	root.add_child(we)
 
 	_pivot = Node3D.new()
-	_pivot.rotation.y = -PI * 0.5
+	_pivot.rotation.y = PI * 0.5
 	root.add_child(_pivot)
 
 	_cam = Camera3D.new()
@@ -254,10 +254,20 @@ func _frame_model() -> void:
 		return
 	var aabb := AABB()
 	var first := true
+	# GPU skinning happens in the vertex shader, so MeshInstance3D's mesh AABB
+	# remains in bind pose.  Prefer the extension's matching deformed bounds for
+	# the main body; accessories continue through their own mesh bounds below.
+	if _pv.model and _pv.model.has_method("get_visual_aabb"):
+		var posed: AABB = _pv.model.call("get_visual_aabb")
+		if posed.size.length_squared() > 0.0:
+			aabb = (_pv.model as Node3D).global_transform * posed
+			first = false
 	for mi in (_pv as Node).find_children("*", "MeshInstance3D", true, false):
 		var m := mi as MeshInstance3D
 		if m.mesh == null:
 			continue
+		if m.get_parent() == _pv.model and m.name == "MeshInstance3D":
+			continue # already covered by Metin2Model.get_visual_aabb()
 		var wb: AABB = m.get_global_transform() * m.get_aabb()
 		aabb = wb if first else aabb.merge(wb)
 		first = false
@@ -274,6 +284,13 @@ func _frame_model() -> void:
 	_cam.position = target + Vector3(0, dist * sin(deg_to_rad(6.0)), dist * cos(deg_to_rad(6.0)))
 	_cam.look_at(target, Vector3.UP)
 
+# Metin2AnimPlayer enables the optional GPU skin path on its first animation
+# sample.  Its material/mesh swap changes the MeshInstance AABB after the
+# initial CPU framing pass, so frame again after the extension confirms it.
+func _on_model_visual_bounds_changed(pv: Node) -> void:
+	if pv == _pv and is_instance_valid(pv):
+		call_deferred("_frame_model")
+
 func _rebuild_model() -> void:
 	if _pivot == null:
 		return
@@ -290,6 +307,8 @@ func _rebuild_model() -> void:
 	_pivot.add_child(pv)
 	if pv.build(_assets, job, pump):
 		_pv = pv
+		if pv.model and pv.model.has_signal("visual_bounds_changed"):
+			pv.model.visual_bounds_changed.connect(_on_model_visual_bounds_changed.bind(pv))
 		if _proto == null and ClassDB.class_exists("Metin2Proto"):
 			_proto = ClassDB.instantiate("Metin2Proto")
 			add_child(_proto)