Incremented version to v5.0.5

This is not actually a bug in this addon, but a bug with the CUE4Parse library itself. A fix for the library has been submitted (https://github.com/FabianFG/CUE4Parse/issues/103), but there will still be bugged versions hanging around for a while, so it's prudent to have this addon accomodate the broken files, especially since the fix is relatively easy and won't interfere with properly formatted files.

At some point, this fix will be deprecated to reduce cruft.

io_scene_psk_psa/__init__.py

@@ -1,7 +1,7 @@
 bl_info = {
     "name": "PSK/PSA Importer/Exporter",
     "author": "Colin Basnett, Yurii Ti",
-    "version": (5, 0, 3),
+    "version": (5, 0, 5),
     "blender": (3, 4, 0),
     "description": "PSK/PSA Import/Export (.psk/.psa)",
     "warning": "",

io_scene_psk_psa/helpers.py

@@ -1,3 +1,4 @@
+import datetime
 import re
 import typing
 from collections import Counter
@@ -8,6 +9,24 @@ import bpy.types
 from bpy.types import NlaStrip, Object, AnimData
 
 
+class Timer:
+    def __enter__(self):
+        self.start = datetime.datetime.now()
+        self.interval = None
+        return self
+
+    def __exit__(self, *args):
+        self.end = datetime.datetime.now()
+        self.interval = self.end - self.start
+
+    @property
+    def duration(self):
+        if self.interval is not None:
+            return self.interval
+        else:
+            return datetime.datetime.now() - self.start
+
+
 def rgb_to_srgb(c: float):
     if c > 0.0031308:
         return 1.055 * (pow(c, (1.0 / 2.4))) - 0.055
@@ -15,7 +34,7 @@ def rgb_to_srgb(c: float):
         return 12.92 * c
 
 
-def get_nla_strips_in_frame_range(animation_data: AnimData, frame_min: float, frame_max: float) -> List[NlaStrip]:
+def get_nla_strips_in_timeframe(animation_data: AnimData, frame_min: float, frame_max: float) -> List[NlaStrip]:
     if animation_data is None:
         return []
     strips = []
@@ -124,7 +143,7 @@ def get_export_bone_names(armature_object: Object, bone_filter_mode: str, bone_g
 
     # Split out the bone indices and the instigator bone names into separate lists.
     # We use the bone names for the return values because the bone name is a more universal way of referencing them.
-    # For example, users of this function may modify bone lists, which would invalidate the indices and require an
+    # For example, users of this function may modify bone lists, which would invalidate the indices and require a
     # index mapping scheme to resolve it. Using strings is more comfy and results in less code downstream.
     instigator_bone_names = [bones[x[1]].name if x[1] is not None else None for x in bone_indices]
     bone_names = [bones[x[0]].name for x in bone_indices]

io_scene_psk_psa/psa/builder.py

@@ -31,7 +31,6 @@ class PsaBuildOptions:
         self.sequence_name_prefix: str = ''
         self.sequence_name_suffix: str = ''
         self.root_motion: bool = False
-        self.unreal_engine_1_mode: bool = False
 
 
 def _get_pose_bone_location_and_rotation(pose_bone: PoseBone, armature_object: Object, options: PsaBuildOptions):
@@ -92,11 +91,7 @@ def build_psa(context: bpy.types.Context, options: PsaBuildOptions) -> Psa:
     # Build list of PSA bones.
     for bone in bones:
         psa_bone = Psa.Bone()
-
-        try:
-            psa_bone.name = bytes(bone.name, encoding='windows-1252')
-        except UnicodeEncodeError:
-            raise RuntimeError(f'Bone name "{bone.name}" contains characters that cannot be encoded in the Windows-1252 codepage')
+        psa_bone.name = bytes(bone.name, encoding='windows-1252')
 
         try:
             parent_index = bones.index(bone.parent)
@@ -170,10 +165,7 @@ def build_psa(context: bpy.types.Context, options: PsaBuildOptions) -> Psa:
             frame_step = -frame_step
 
         psa_sequence = Psa.Sequence()
-        try:
-            psa_sequence.name = bytes(export_sequence.name, encoding='windows-1252')
-        except UnicodeEncodeError:
-            raise RuntimeError(f'Sequence name "{export_sequence.name}" contains characters that cannot be encoded in the Windows-1252 codepage')
+        psa_sequence.name = bytes(export_sequence.name, encoding='windows-1252')
         psa_sequence.frame_count = frame_count
         psa_sequence.frame_start_index = frame_start_index
         psa_sequence.fps = frame_count / sequence_duration

io_scene_psk_psa/psa/export/operators.py

@@ -1,4 +1,3 @@
-import os.path
 import re
 from collections import Counter
 from typing import List, Iterable, Dict, Tuple
@@ -9,10 +8,10 @@ from bpy.types import Context, Armature, Action, Object, AnimData, TimelineMarke
 from bpy_extras.io_utils import ExportHelper
 from bpy_types import Operator
 
-from .properties import PSA_PG_export, PSA_PG_export_action_list_item, filter_sequences
 from ..builder import build_psa, PsaBuildSequence, PsaBuildOptions
-from ..writer import write_psa, write_psa_import_commands
-from ...helpers import populate_bone_group_list, get_nla_strips_in_frame_range
+from ..export.properties import PSA_PG_export, PSA_PG_export_action_list_item, filter_sequences
+from ..writer import write_psa
+from ...helpers import populate_bone_group_list, get_nla_strips_in_timeframe
 
 
 def is_action_for_armature(armature: Armature, action: Action):
@@ -81,14 +80,12 @@ def update_actions_and_timeline_markers(context: Context, armature: Armature):
             continue
         if marker_name.startswith('#'):
             continue
+        item = pg.marker_list.add()
+        item.name = marker_name
+        item.is_selected = False
         frame_start, frame_end = sequence_frame_ranges[marker_name]
-        sequences = get_sequences_from_name_and_frame_range(marker_name, frame_start, frame_end)
-        for (sequence_name, frame_start, frame_end) in sequences:
-            item = pg.marker_list.add()
-            item.name = sequence_name
-            item.is_selected = False
-            item.frame_start = frame_start
-            item.frame_end = frame_end
+        item.frame_start = frame_start
+        item.frame_end = frame_end
 
 
 def get_sequence_fps(context: Context, fps_source: str, fps_custom: float, actions: Iterable[Action]) -> float:
@@ -153,7 +150,7 @@ def get_timeline_marker_sequence_frame_ranges(animation_data: AnimData, context:
         if next_marker_index < len(sorted_timeline_markers):
             # There is a next marker. Use that next marker's frame position as the last frame of this sequence.
             frame_end = sorted_timeline_markers[next_marker_index].frame
-            nla_strips = get_nla_strips_in_frame_range(animation_data, marker.frame, frame_end)
+            nla_strips = get_nla_strips_in_timeframe(animation_data, marker.frame, frame_end)
             if len(nla_strips) > 0:
                 frame_end = min(frame_end, max(map(lambda nla_strip: nla_strip.frame_end, nla_strips)))
                 frame_start = max(frame_start, min(map(lambda nla_strip: nla_strip.frame_start, nla_strips)))
@@ -177,9 +174,11 @@ def get_timeline_marker_sequence_frame_ranges(animation_data: AnimData, context:
     return sequence_frame_ranges
 
 
-def get_sequences_from_name_and_frame_range(name: str, frame_start: int, frame_end: int) -> List[Tuple[str, int, int]]:
+def get_sequences_from_action(action: Action) -> List[Tuple[str, int, int]]:
+    frame_start = int(action.frame_range[0])
+    frame_end = int(action.frame_range[1])
     reversed_pattern = r'(.+)/(.+)'
-    reversed_match = re.match(reversed_pattern, name)
+    reversed_match = re.match(reversed_pattern, action.name)
     if reversed_match:
         forward_name = reversed_match.group(1)
         backwards_name = reversed_match.group(2)
@@ -188,13 +187,7 @@ def get_sequences_from_name_and_frame_range(name: str, frame_start: int, frame_e
             (backwards_name, frame_end, frame_start)
         ]
     else:
-        return [(name, frame_start, frame_end)]
-
-
-def get_sequences_from_action(action: Action) -> List[Tuple[str, int, int]]:
-    frame_start = int(action.frame_range[0])
-    frame_end = int(action.frame_range[1])
-    return get_sequences_from_name_and_frame_range(action.name, frame_start, frame_end)
+        return [(action.name, frame_start, frame_end)]
 
 
 def get_sequences_from_action_pose_marker(action: Action, pose_markers: List[TimelineMarker], pose_marker: TimelineMarker, pose_marker_index: int) -> List[Tuple[str, int, int]]:
@@ -203,7 +196,17 @@ def get_sequences_from_action_pose_marker(action: Action, pose_markers: List[Tim
         frame_end = pose_markers[pose_marker_index + 1].frame
     else:
         frame_end = int(action.frame_range[1])
-    return get_sequences_from_name_and_frame_range(pose_marker.name, frame_start, frame_end)
+    reversed_pattern = r'(.+)/(.+)'
+    reversed_match = re.match(reversed_pattern, pose_marker.name)
+    if reversed_match:
+        forward_name = reversed_match.group(1)
+        backwards_name = reversed_match.group(2)
+        return [
+            (forward_name, frame_start, frame_end),
+            (backwards_name, frame_end, frame_start)
+        ]
+    else:
+        return [(pose_marker.name, frame_start, frame_end)]
 
 
 def get_visible_sequences(pg: PSA_PG_export, sequences) -> List[PSA_PG_export_action_list_item]:
@@ -251,18 +254,12 @@ class PSA_OT_export(Operator, ExportHelper):
         # SOURCE
         layout.prop(pg, 'sequence_source', text='Source')
 
-        if pg.sequence_source in {'TIMELINE_MARKERS', 'NLA_TRACK_STRIPS'}:
+        if pg.sequence_source == 'TIMELINE_MARKERS':
             # ANIMDATA SOURCE
             layout.prop(pg, 'should_override_animation_data')
             if pg.should_override_animation_data:
                 layout.prop(pg, 'animation_data_override', text='')
 
-        if pg.sequence_source == 'NLA_TRACK_STRIPS':
-            flow = layout.grid_flow()
-            flow.use_property_split = True
-            flow.use_property_decorate = False
-            flow.prop(pg, 'nla_track')
-
         # SELECT ALL/NONE
         row = layout.row(align=True)
         row.label(text='Select')
@@ -272,19 +269,25 @@ class PSA_OT_export(Operator, ExportHelper):
         # ACTIONS
         if pg.sequence_source == 'ACTIONS':
             rows = max(3, min(len(pg.action_list), 10))
+
             layout.template_list('PSA_UL_export_sequences', '', pg, 'action_list', pg, 'action_list_index', rows=rows)
+
+            col = layout.column()
+            col.use_property_split = True
+            col.use_property_decorate = False
+            col.prop(pg, 'sequence_name_prefix')
+            col.prop(pg, 'sequence_name_suffix')
+
         elif pg.sequence_source == 'TIMELINE_MARKERS':
             rows = max(3, min(len(pg.marker_list), 10))
-            layout.template_list('PSA_UL_export_sequences', '', pg, 'marker_list', pg, 'marker_list_index', rows=rows)
-        elif pg.sequence_source == 'NLA_TRACK_STRIPS':
-            rows = max(3, min(len(pg.nla_strip_list), 10))
-            layout.template_list('PSA_UL_export_sequences', '', pg, 'nla_strip_list', pg, 'nla_strip_list_index', rows=rows)
+            layout.template_list('PSA_UL_export_sequences', '', pg, 'marker_list', pg, 'marker_list_index',
+                                 rows=rows)
 
-        col = layout.column()
-        col.use_property_split = True
-        col.use_property_decorate = False
-        col.prop(pg, 'sequence_name_prefix')
-        col.prop(pg, 'sequence_name_suffix')
+            col = layout.column()
+            col.use_property_split = True
+            col.use_property_decorate = False
+            col.prop(pg, 'sequence_name_prefix')
+            col.prop(pg, 'sequence_name_suffix')
 
         # Determine if there is going to be a naming conflict and display an error, if so.
         selected_items = [x for x in pg.action_list if x.is_selected]
@@ -314,9 +317,8 @@ class PSA_OT_export(Operator, ExportHelper):
 
         layout.separator()
 
+        # ROOT MOTION
         layout.prop(pg, 'root_motion', text='Root Motion')
-        layout.prop(pg, 'should_write_import_commands', text='Write Import Commands')
-
 
     @classmethod
     def _check_context(cls, context):
@@ -358,8 +360,6 @@ class PSA_OT_export(Operator, ExportHelper):
             raise RuntimeError('No actions were selected for export')
         elif pg.sequence_source == 'TIMELINE_MARKERS' and len(pg.marker_list) == 0:
             raise RuntimeError('No timeline markers were selected for export')
-        elif pg.sequence_source == 'NLA_TRACK_STRIPS' and len(pg.nla_strip_list) == 0:
-            raise RuntimeError('No NLA track strips were selected for export')
 
         # Populate the export sequence list.
         animation_data_object = get_animation_data_object(context)
@@ -371,38 +371,29 @@ class PSA_OT_export(Operator, ExportHelper):
         export_sequences: List[PsaBuildSequence] = []
 
         if pg.sequence_source == 'ACTIONS':
-            for action_item in filter(lambda x: x.is_selected, pg.action_list):
-                if len(action_item.action.fcurves) == 0:
+            for action in filter(lambda x: x.is_selected, pg.action_list):
+                if len(action.action.fcurves) == 0:
                     continue
                 export_sequence = PsaBuildSequence()
-                export_sequence.nla_state.action = action_item.action
-                export_sequence.name = action_item.name
-                export_sequence.nla_state.frame_start = action_item.frame_start
-                export_sequence.nla_state.frame_end = action_item.frame_end
-                export_sequence.fps = get_sequence_fps(context, pg.fps_source, pg.fps_custom, [action_item.action])
-                export_sequence.compression_ratio = action_item.action.psa_export.compression_ratio
-                export_sequence.key_quota = action_item.action.psa_export.key_quota
+                export_sequence.nla_state.action = action.action
+                export_sequence.name = action.name
+                export_sequence.nla_state.frame_start = action.frame_start
+                export_sequence.nla_state.frame_end = action.frame_end
+                export_sequence.fps = get_sequence_fps(context, pg.fps_source, pg.fps_custom, [action.action])
+                export_sequence.compression_ratio = action.action.psa_export.compression_ratio
+                export_sequence.key_quota = action.action.psa_export.key_quota
                 export_sequences.append(export_sequence)
         elif pg.sequence_source == 'TIMELINE_MARKERS':
-            for marker_item in filter(lambda x: x.is_selected, pg.marker_list):
+            for marker in pg.marker_list:
                 export_sequence = PsaBuildSequence()
-                export_sequence.name = marker_item.name
+                export_sequence.name = marker.name
                 export_sequence.nla_state.action = None
-                export_sequence.nla_state.frame_start = marker_item.frame_start
-                export_sequence.nla_state.frame_end = marker_item.frame_end
+                export_sequence.nla_state.frame_start = marker.frame_start
+                export_sequence.nla_state.frame_end = marker.frame_end
                 nla_strips_actions = set(
-                    map(lambda x: x.action, get_nla_strips_in_frame_range(animation_data, marker_item.frame_start, marker_item.frame_end)))
+                    map(lambda x: x.action, get_nla_strips_in_timeframe(animation_data, marker.frame_start, marker.frame_end)))
                 export_sequence.fps = get_sequence_fps(context, pg.fps_source, pg.fps_custom, nla_strips_actions)
                 export_sequences.append(export_sequence)
-        elif pg.sequence_source == 'NLA_TRACK_STRIPS':
-            for nla_strip_item in filter(lambda x: x.is_selected, pg.nla_strip_list):
-                export_sequence = PsaBuildSequence()
-                export_sequence.name = nla_strip_item.name
-                export_sequence.nla_state.action = None
-                export_sequence.nla_state.frame_start = nla_strip_item.frame_start
-                export_sequence.nla_state.frame_end = nla_strip_item.frame_end
-                export_sequence.fps = get_sequence_fps(context, pg.fps_source, pg.fps_custom, [nla_strip_item.action])
-                export_sequences.append(export_sequence)
         else:
             raise ValueError(f'Unhandled sequence source: {pg.sequence_source}')
 
@@ -425,12 +416,6 @@ class PSA_OT_export(Operator, ExportHelper):
 
         write_psa(psa, self.filepath)
 
-        if pg.should_write_import_commands:
-            # Replace the extension in the file path to be ".uc" instead of ".psa".
-            # This is because the Unreal Engine 1 import command expects the file to have a ".uc" extension.
-            filepath = os.path.splitext(self.filepath)[0] + '.uc'
-            write_psa_import_commands(psa, filepath)
-
         return {'FINISHED'}
 
 
@@ -447,8 +432,6 @@ class PSA_OT_export_actions_select_all(Operator):
             return pg.action_list
         elif pg.sequence_source == 'TIMELINE_MARKERS':
             return pg.marker_list
-        elif pg.sequence_source == 'NLA_TRACK_STRIPS':
-            return pg.nla_strip_list
         return None
 
     @classmethod
@@ -480,8 +463,6 @@ class PSA_OT_export_actions_deselect_all(Operator):
             return pg.action_list
         elif pg.sequence_source == 'TIMELINE_MARKERS':
             return pg.marker_list
-        elif pg.sequence_source == 'NLA_TRACK_STRIPS':
-            return pg.nla_strip_list
         return None
 
     @classmethod

io_scene_psk_psa/psa/export/properties.py

@@ -1,11 +1,10 @@
-import re
 import sys
 from fnmatch import fnmatch
-from typing import List, Optional
+from typing import List
 
 from bpy.props import BoolProperty, PointerProperty, EnumProperty, FloatProperty, CollectionProperty, IntProperty, \
     StringProperty
-from bpy.types import PropertyGroup, Object, Action, AnimData, Context
+from bpy.types import PropertyGroup, Object, Action
 
 from ...types import PSX_PG_bone_group_list_item
 
@@ -26,7 +25,7 @@ class PSA_PG_export_action_list_item(PropertyGroup):
     is_pose_marker: BoolProperty(options={'HIDDEN'})
 
 
-class PSA_PG_export_timeline_markers(PropertyGroup):  # TODO: rename this to singular
+class PSA_PG_export_timeline_markers(PropertyGroup):
     marker_index: IntProperty()
     name: StringProperty()
     is_selected: BoolProperty(default=True)
@@ -34,51 +33,6 @@ class PSA_PG_export_timeline_markers(PropertyGroup):  # TODO: rename this to sin
     frame_end: IntProperty(options={'HIDDEN'})
 
 
-class PSA_PG_export_nla_strip_list_item(PropertyGroup):
-    name: StringProperty()
-    action: PointerProperty(type=Action)
-    frame_start: FloatProperty()
-    frame_end: FloatProperty()
-    is_selected: BoolProperty(default=True)
-
-
-def nla_track_update_cb(self: 'PSA_PG_export', context: Context) -> None:
-    self.nla_strip_list.clear()
-    if context.object is None or context.object.animation_data is None:
-        return
-    match = re.match(r'^(\d+).+$', self.nla_track)
-    self.nla_track_index = int(match.group(1)) if match else -1
-    if self.nla_track_index >= 0:
-        nla_track = context.object.animation_data.nla_tracks[self.nla_track_index]
-        for nla_strip in nla_track.strips:
-            strip: PSA_PG_export_nla_strip_list_item = self.nla_strip_list.add()
-            strip.action = nla_strip.action
-            strip.name = nla_strip.name
-            strip.frame_start = nla_strip.frame_start
-            strip.frame_end = nla_strip.frame_end
-
-
-def get_animation_data(pg: 'PSA_PG_export', context: Context) -> Optional[AnimData]:
-    animation_data_object = context.object
-    if pg.should_override_animation_data:
-        animation_data_object = pg.animation_data_override
-    return animation_data_object.animation_data if animation_data_object else None
-
-
-def nla_track_search_cb(self, context: Context, edit_text: str):
-    pg = getattr(context.scene, 'psa_export')
-    animation_data = get_animation_data(pg, context)
-    if animation_data is None:
-        return
-    for index, nla_track in enumerate(animation_data.nla_tracks):
-        yield f'{index} - {nla_track.name}'
-
-
-def animation_data_override_update_cb(self: 'PSA_PG_export', context: Context):
-    # Reset NLA track selection
-    self.nla_track = ''
-
-
 class PSA_PG_export(PropertyGroup):
     root_motion: BoolProperty(
         name='Root Motion',
@@ -92,12 +46,10 @@ class PSA_PG_export(PropertyGroup):
         name='Override Animation Data',
         options=empty_set,
         default=False,
-        description='Use the animation data from a different object instead of the selected object',
-        update=animation_data_override_update_cb,
+        description='Use the animation data from a different object instead of the selected object'
     )
     animation_data_override: PointerProperty(
         type=Object,
-        update=animation_data_override_update_cb,
         poll=psa_export_property_group_animation_data_override_poll
     )
     sequence_source: EnumProperty(
@@ -106,18 +58,10 @@ class PSA_PG_export(PropertyGroup):
         description='',
         items=(
             ('ACTIONS', 'Actions', 'Sequences will be exported using actions', 'ACTION', 0),
-            ('TIMELINE_MARKERS', 'Timeline Markers', 'Sequences are delineated by scene timeline markers', 'MARKER_HLT', 1),
-            ('NLA_TRACK_STRIPS', 'NLA Track Strips', 'Sequences are delineated by the start & end times of strips on the selected NLA track', 'NLA', 2)
+            ('TIMELINE_MARKERS', 'Timeline Markers', 'Sequences will be exported using timeline markers', 'MARKER_HLT',
+             1),
         )
     )
-    nla_track: StringProperty(
-        name='NLA Track',
-        options=empty_set,
-        description='',
-        search=nla_track_search_cb,
-        update=nla_track_update_cb
-    )
-    nla_track_index: IntProperty(name='NLA Track Index', default=-1)
     fps_source: EnumProperty(
         name='FPS Source',
         options=empty_set,
@@ -136,8 +80,6 @@ class PSA_PG_export(PropertyGroup):
     action_list_index: IntProperty(default=0)
     marker_list: CollectionProperty(type=PSA_PG_export_timeline_markers)
     marker_list_index: IntProperty(default=0)
-    nla_strip_list: CollectionProperty(type=PSA_PG_export_nla_strip_list_item)
-    nla_strip_list_index: IntProperty(default=0)
     bone_filter_mode: EnumProperty(
         name='Bone Filter',
         options=empty_set,
@@ -184,12 +126,6 @@ class PSA_PG_export(PropertyGroup):
         name='Show Reversed',
         description='Show reversed sequences'
     )
-    should_write_import_commands: BoolProperty(
-        default=True,
-        options=empty_set,
-        name='Write PSA Import Commands',
-        description='Write PSA import commands to a UnrealScript file in the same directory as the exported file'
-    )
 
 
 def filter_sequences(pg: PSA_PG_export, sequences) -> List[int]:
@@ -209,7 +145,7 @@ def filter_sequences(pg: PSA_PG_export, sequences) -> List[int]:
 
     if not pg.sequence_filter_asset:
         for i, sequence in enumerate(sequences):
-            if hasattr(sequence, 'action') and sequence.action is not None and sequence.action.asset_data is not None:
+            if hasattr(sequence, 'action') and sequence.action.asset_data is not None:
                 flt_flags[i] &= ~bitflag_filter_item
 
     if not pg.sequence_filter_pose_marker:
@@ -228,6 +164,5 @@ def filter_sequences(pg: PSA_PG_export, sequences) -> List[int]:
 classes = (
     PSA_PG_export_action_list_item,
     PSA_PG_export_timeline_markers,
-    PSA_PG_export_nla_strip_list_item,
     PSA_PG_export,
 )

io_scene_psk_psa/psa/export/ui.py

@@ -16,7 +16,7 @@ class PSA_UL_export_sequences(UIList):
         item = cast(PSA_PG_export_action_list_item, item)
         is_pose_marker = hasattr(item, 'is_pose_marker') and item.is_pose_marker
         layout.prop(item, 'is_selected', icon_only=True, text=item.name)
-        if hasattr(item, 'action') and item.action is not None and item.action.asset_data is not None:
+        if hasattr(item, 'action') and item.action.asset_data is not None:
             layout.label(text='', icon='ASSET_MANAGER')
 
         row = layout.row(align=True)

io_scene_psk_psa/psa/import_/operators.py

@@ -167,12 +167,17 @@ class PSA_OT_import(Operator, ImportHelper):
         options.should_convert_to_samples = pg.should_convert_to_samples
         options.bone_mapping_mode = pg.bone_mapping_mode
 
+        if len(sequence_names) == 0:
+            self.report({'ERROR_INVALID_CONTEXT'}, 'No sequences selected')
+            return {'CANCELLED'}
+
         result = import_psa(context, psa_reader, context.view_layer.objects.active, options)
 
         if len(result.warnings) > 0:
             message = f'Imported {len(sequence_names)} action(s) with {len(result.warnings)} warning(s)\n'
-            message += '\n'.join(result.warnings)
             self.report({'WARNING'}, message)
+            for warning in result.warnings:
+                self.report({'WARNING'}, warning)
         else:
             self.report({'INFO'}, f'Imported {len(sequence_names)} action(s)')
 

io_scene_psk_psa/psa/reader.py

@@ -5,6 +5,24 @@ import numpy as np
 from .data import *
 
 
+def _try_fix_cue4parse_issue_103(sequences) -> bool:
+    # Detect if the file was exported from CUE4Parse prior to the fix for issue #103.
+    # https://github.com/FabianFG/CUE4Parse/issues/103
+    # The issue was that the frame_start_index was not being set correctly, and was always being set to the same value
+    # as the frame_count.
+    # This fix will eventually be deprecated as it is only necessary for files exported prior to the fix.
+    if len(sequences) > 0:
+        if sequences[0].frame_start_index == sequences[0].frame_count:
+            # Manually set the frame_start_index for each sequence. This assumes that the sequences are in order with
+            # no shared frames between sequences (all exporters that I know of do this, so it's a safe assumption).
+            frame_start_index = 0
+            for i, sequence in enumerate(sequences):
+                sequence.frame_start_index = frame_start_index
+                frame_start_index += sequence.frame_count
+            return True
+    return False
+
+
 class PsaReader(object):
     """
     This class reads the sequences and bone information immediately upon instantiation and holds onto a file handle.
@@ -86,14 +104,15 @@ class PsaReader(object):
             elif section.name == b'ANIMINFO':
                 sequences = []
                 PsaReader._read_types(fp, Psa.Sequence, section, sequences)
+                # Try to fix CUE4Parse bug, if necessary.
+                _try_fix_cue4parse_issue_103(sequences)
                 for sequence in sequences:
                     psa.sequences[sequence.name.decode()] = sequence
             elif section.name == b'ANIMKEYS':
                 # Skip keys on this pass. We will keep this file open and read from it as needed.
                 self.keys_data_offset = fp.tell()
                 fp.seek(section.data_size * section.data_count, 1)
-            elif section.name == b'SCALEKEYS':
-                fp.seek(section.data_size * section.data_count, 1)
             else:
-                raise RuntimeError(f'Unrecognized section "{section.name}"')
+                fp.seek(section.data_size * section.data_count, 1)
+                print(f'Unrecognized section in PSA: "{section.name}"')
         return psa

io_scene_psk_psa/psa/writer.py

@@ -1,4 +1,3 @@
-import os.path
 from ctypes import Structure, sizeof
 from typing import Type
 
@@ -24,15 +23,3 @@ def write_psa(psa: Psa, path: str):
         write_section(fp, b'BONENAMES', Psa.Bone, psa.bones)
         write_section(fp, b'ANIMINFO', Psa.Sequence, list(psa.sequences.values()))
         write_section(fp, b'ANIMKEYS', Psa.Key, psa.keys)
-
-
-def write_psa_import_commands(psa: Psa, path: str):
-    anim = os.path.splitext(os.path.basename(path))[0]
-    with open(path, 'w') as fp:
-        for sequence_name, sequence in psa.sequences.items():
-            fp.write(f'#EXEC ANIM SEQUENCE '
-                     f'ANIM={anim} '
-                     f'SEQ={sequence_name} '
-                     f'STARTFRAME={sequence.frame_start_index} '
-                     f'NUMFRAMES={sequence.frame_count} '
-                     f'RATE={sequence.fps}\n')

io_scene_psk_psa/psk/builder.py

@@ -88,11 +88,7 @@ def build_psk(context, options: PskBuildOptions) -> Psk:
 
         for bone in bones:
             psk_bone = Psk.Bone()
-            try:
-                psk_bone.name = bytes(bone.name, encoding='windows-1252')
-            except UnicodeEncodeError:
-                raise RuntimeError(
-                    f'Bone name "{bone.name}" contains characters that cannot be encoded in the Windows-1252 codepage')
+            psk_bone.name = bytes(bone.name, encoding='windows-1252')
             psk_bone.flags = 0
             psk_bone.children_count = 0
 
@@ -133,17 +129,14 @@ def build_psk(context, options: PskBuildOptions) -> Psk:
 
     for material_name in material_names:
         psk_material = Psk.Material()
-        try:
-            psk_material.name = bytes(material_name, encoding='windows-1252')
-        except UnicodeEncodeError:
-            raise RuntimeError(f'Material name "{material_name}" contains characters that cannot be encoded in the Windows-1252 codepage')
+        psk_material.name = bytes(material_name, encoding='windows-1252')
         psk_material.texture_index = len(psk.materials)
         psk.materials.append(psk_material)
 
     for input_mesh_object in input_objects.mesh_objects:
 
         # MATERIALS
-        material_indices = [material_names.index(material_slot.material.name) for material_slot in input_mesh_object.material_slots]
+        material_indices = [material_names.index(material.name) for material in input_mesh_object.data.materials]
 
         # MESH DATA
         if options.use_raw_mesh_data:
@@ -154,8 +147,10 @@ def build_psk(context, options: PskBuildOptions) -> Psk:
 
             # Temporarily force the armature into the rest position.
             # We will undo this later.
-            old_pose_position = armature_object.data.pose_position
-            armature_object.data.pose_position = 'REST'
+            old_pose_position = None
+            if armature_object is not None:
+                old_pose_position = armature_object.data.pose_position
+                armature_object.data.pose_position = 'REST'
 
             depsgraph = context.evaluated_depsgraph_get()
             bm = bmesh.new()
@@ -171,7 +166,8 @@ def build_psk(context, options: PskBuildOptions) -> Psk:
                 mesh_object.vertex_groups.new(name=vertex_group.name)
 
             # Restore the previous pose position on the armature.
-            armature_object.data.pose_position = old_pose_position
+            if old_pose_position is not None:
+                armature_object.data.pose_position = old_pose_position
 
         vertex_offset = len(psk.points)
 

io_scene_psk_psa/psk/export/operators.py

@@ -22,11 +22,10 @@ def populate_material_list(mesh_objects, material_list):
 
     material_names = []
     for mesh_object in mesh_objects:
-        for i, material_slot in enumerate(mesh_object.material_slots):
-            material = material_slot.material
+        for i, material in enumerate(mesh_object.data.materials):
             # TODO: put this in the poll arg?
             if material is None:
-                raise RuntimeError('Material slot cannot be empty (index ' + str(i) + ')')
+                raise RuntimeError('Material cannot be empty (index ' + str(i) + ')')
             if material.name not in material_names:
                 material_names.append(material.name)
 

io_scene_psk_psa/psk/importer.py

@@ -131,7 +131,7 @@ def import_psk(psk: Psk, context, options: PskImportOptions) -> PskImportResult:
                     # Material already exists, just re-use it.
                     material = bpy.data.materials[material_name]
                 elif is_bdk_addon_loaded() and psk.has_material_references:
-                    # Material does not yet exist, and we have the BDK addon installed.
+                    # Material does not yet exist and we have the BDK addon installed.
                     # Attempt to load it using BDK addon's operator.
                     material_reference = psk.material_references[material_index]
                     if material_reference and bpy.ops.bdk.link_material(reference=material_reference) == {'FINISHED'}: