DarklightGames/io_scene_psk_psa
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Fixed regression where exporting meshes without an armature would fail

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This commit is contained in:
Colin Basnett
2026-03-02 01:17:07 -08:00
parent be920d1c91
commit f613e50f3a
2 changed files with 19 additions and 2 deletions
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13
io_scene_psk_psa/psk/builder.py
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@@ -2,9 +2,9 @@ import bmesh
import bpy import bpy
import numpy as np import numpy as np
from bpy.types import Armature, Context, Object, Mesh from bpy.types import Armature, Context, Object, Mesh
from mathutils import Matrix from mathutils import Matrix, Quaternion
from typing import Iterable, cast as typing_cast from typing import Iterable, cast as typing_cast
from psk_psa_py.shared.data import Vector3 from psk_psa_py.shared.data import PsxBone, Vector3
from psk_psa_py.psk.data import Psk from psk_psa_py.psk.data import Psk
from .properties import triangle_type_and_bit_flags_to_poly_flags from .properties import triangle_type_and_bit_flags_to_poly_flags
from ..shared.helpers import ( from ..shared.helpers import (
@@ -12,6 +12,7 @@ from ..shared.helpers import (
ObjectTree, ObjectTree,
PskInputObjects, PskInputObjects,
PsxBoneCollection, PsxBoneCollection,
convert_bpy_quaternion_to_psx_quaternion,
convert_string_to_cp1252_bytes, convert_string_to_cp1252_bytes,
create_psx_bones, create_psx_bones,
get_armature_for_mesh_object, get_armature_for_mesh_object,
@@ -104,6 +105,14 @@ def build_psk(context: Context, input_objects: PskInputObjects, options: PskBuil
psk.bones = [bone.psx_bone for bone in psx_bone_create_result.bones] psk.bones = [bone.psx_bone for bone in psx_bone_create_result.bones]
if len(psk.bones) == 0:
# Add a default root bone if there are no bones to export.
# This is necessary because Unreal Engine requires at least one bone in the PSK file.
psx_bone = PsxBone()
psx_bone.name = b'ROOT'
psx_bone.rotation = convert_bpy_quaternion_to_psx_quaternion(Quaternion())
psk.bones.append(psx_bone)
# Materials # Materials
mesh_objects = [dfs_object.obj for dfs_object in input_objects.mesh_dfs_objects] mesh_objects = [dfs_object.obj for dfs_object in input_objects.mesh_dfs_objects]

8
io_scene_psk_psa/shared/helpers.py
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@@ -452,6 +452,14 @@ def create_psx_bones(
bones.extend(PsxBoneResult(psx_bone, armature_object) for psx_bone in armature_psx_bones) bones.extend(PsxBoneResult(psx_bone, armature_object) for psx_bone in armature_psx_bones)
# Check that we have any bones to export at this point. If not, we can skip the rest of the processing.
if len(bones) == 0:
return PsxBoneCreateResult(
bones=[],
armature_object_root_bone_indices=armature_object_root_bone_indices,
armature_object_bone_names=armature_object_bone_names,
)
# Check if any of the armatures are parented to one another. # Check if any of the armatures are parented to one another.
# If so, adjust the hierarchy as though they are part of the same armature object. # If so, adjust the hierarchy as though they are part of the same armature object.
# This will let us re-use rig components without destructively joining them. # This will let us re-use rig components without destructively joining them.