Updated to use Blender 4.3.2

#17: Convert frame time from float to int

addons/io_scene_swbf_msh/__init__.py

@@ -1,8 +1,8 @@
 bl_info = {
     'name': 'SWBF .msh Import-Export',
-    'author': 'Will Snyder, SleepKiller',
+    'author': 'Will Snyder, PrismaticFlower',
-    "version": (1, 0, 0),
+    "version": (1, 3, 3),
-    'blender': (2, 80, 0),
+    'blender': (4, 3, 2),
     'location': 'File > Import-Export',
     'description': 'Export as SWBF .msh file',
     'warning': '',
@@ -118,6 +118,11 @@ class ExportMSH(Operator, ExportHelper):
 
     def execute(self, context):
 
+        if 'SELECTED' in self.export_target and len(bpy.context.selected_objects) == 0:
+            raise Exception("{} was chosen, but you have not selected any objects. "
+                            " Don't forget to unhide all the objects you wish to select!".format(self.export_target))
+
+
         scene, armature_obj = create_scene(
                                 generate_triangle_strips=self.generate_triangle_strips,
                                 apply_modifiers=self.apply_modifiers,
@@ -157,14 +162,14 @@ def menu_func_export(self, context):
 
 
 class ImportMSH(Operator, ImportHelper):
-    """ Import an SWBF .msh file. """
+    """ Import SWBF .msh file(s). """
 
     bl_idname = "swbf_msh.import"
     bl_label = "Import SWBF .msh File(s)"
     filename_ext = ".msh"
 
     files: CollectionProperty(
-            name="File Path",
+            name="File Path(s)",
             type=bpy.types.OperatorFileListElement,
             )
 
@@ -176,7 +181,7 @@ class ImportMSH(Operator, ImportHelper):
 
     animation_only: BoolProperty(
         name="Import Animation(s)",
-        description="Import on or more animations from the selected files and append each as a new Action to currently selected Armature.",
+        description="Import one or more animations from the selected files and append each as a new Action to currently selected Armature.",
         default=False
     )
 

addons/io_scene_swbf_msh/chunked_file_reader.py

@@ -138,6 +138,9 @@ class Reader:
     def how_much_left(self, pos):
         return self.end_pos - pos
 
+    def bytes_remaining(self):
+        return self.end_pos - self.file.tell()
+
     def skip_until(self, header):
         while (self.could_have_child() and header not in self.peak_next_header()):
             self.skip_bytes(1)

addons/io_scene_swbf_msh/msh_anim_gather.py

@@ -67,7 +67,7 @@ def extract_anim(armature: bpy.types.Armature, root_name: str) -> Animation:
 
     for frame in range(num_frames):
         
-        frame_time = framerange.x + frame * increment
+        frame_time = int(framerange.x + frame * increment)
         bpy.context.scene.frame_set(frame_time)
 
         for keyable_bone in keyable_bones:

addons/io_scene_swbf_msh/msh_anim_to_blend.py

@@ -32,7 +32,6 @@ def extract_and_apply_anim(filename : str, scene : Scene):
 
     if scene.animation is None:
         raise Exception("No animation found in msh file!")
-    
     else:
         head, tail = os.path.split(filename)
         anim_name = tail.split(".")[0]
@@ -40,6 +39,10 @@ def extract_and_apply_anim(filename : str, scene : Scene):
         if anim_name in bpy.data.actions:
             bpy.data.actions.remove(bpy.data.actions[anim_name], do_unlink=True)
 
+            for nt in arma.animation_data.nla_tracks:
+                if anim_name == nt.strips[0].name:
+                    arma.animation_data.nla_tracks.remove(nt)
+
         action = bpy.data.actions.new(anim_name)
         action.use_fake_user = True
 
@@ -103,4 +106,5 @@ def extract_and_apply_anim(filename : str, scene : Scene):
                     fcurve_loc_z.keyframe_points.insert(i,t.z)
 
         arma.animation_data.action = action
-
+        track = arma.animation_data.nla_tracks.new()
+        track.strips.new(action.name, int(action.frame_range[0]), action)

addons/io_scene_swbf_msh/msh_material_operators.py

@@ -180,8 +180,10 @@ to provide an exact emulation"""
 
             texture_input_nodes.append(texImage)
 
+            specular_key = "Specular" if bpy.app.version < (4, 0, 0) else "Specular IOR Level"
+
             bsdf.inputs["Roughness"].default_value = 1.0
-            bsdf.inputs["Specular"].default_value = 0.0
+            bsdf.inputs[specular_key].default_value = 0.0
 
             material.use_backface_culling = not bool(mat_props.doublesided)
 

addons/io_scene_swbf_msh/msh_mesh_to_blend.py

@@ -40,6 +40,7 @@ def model_to_mesh_object(model: Model, scene : Scene, materials_map : Dict[str,
     vertex_positions = []
     vertex_uvs = []
     vertex_normals = []
+    vertex_colors = []
 
     # Keeps track of which vertices each group of weights affects
     # i.e. maps offset of vertices -> weights that affect them
@@ -58,6 +59,7 @@ def model_to_mesh_object(model: Model, scene : Scene, materials_map : Dict[str,
 
 
     if model.geometry:
+        geometry_has_colors = any(segment.colors for segment in model.geometry)
 
         for segment in model.geometry:
 
@@ -76,6 +78,11 @@ def model_to_mesh_object(model: Model, scene : Scene, materials_map : Dict[str,
             if segment.normals:
                 vertex_normals += [tuple(convert_vector_space(n)) for n in segment.normals]
 
+            if segment.colors:
+                vertex_colors.extend(segment.colors)
+            elif geometry_has_colors:
+                [vertex_colors.extend([0.0, 0.0, 0.0, 1.0]) for _ in range(len(segment.positions))]
+            
             if segment.weights:
                 vertex_weights_offsets[polygon_index_offset] = segment.weights
 
@@ -111,7 +118,6 @@ def model_to_mesh_object(model: Model, scene : Scene, materials_map : Dict[str,
         blender_mesh.vertices.add(len(vertex_positions))
         blender_mesh.vertices.foreach_set("co", [component for vertex_position in vertex_positions for component in vertex_position])
 
-
         # LOOPS 
 
         flat_indices = [index for polygon in polygons for index in polygon]
@@ -122,13 +128,16 @@ def model_to_mesh_object(model: Model, scene : Scene, materials_map : Dict[str,
         blender_mesh.loops.foreach_set("vertex_index", flat_indices)
 
         # Normals
-        blender_mesh.create_normals_split()
         blender_mesh.loops.foreach_set("normal", [component for i in flat_indices for component in vertex_normals[i]])
 
         # UVs
         blender_mesh.uv_layers.new(do_init=False)
         blender_mesh.uv_layers[0].data.foreach_set("uv", [component for i in flat_indices for component in vertex_uvs[i]])
 
+        # Colors
+        if geometry_has_colors:
+            blender_mesh.color_attributes.new("COLOR0", "FLOAT_COLOR", "POINT")
+            blender_mesh.color_attributes[0].data.foreach_set("color", vertex_colors)
 
 
         # POLYGONS/FACES
@@ -165,7 +174,6 @@ def model_to_mesh_object(model: Model, scene : Scene, materials_map : Dict[str,
         reset_normals = [0.0] * (len(blender_mesh.loops) * 3)
         blender_mesh.loops.foreach_get("normal", reset_normals)
         blender_mesh.normals_split_custom_set(tuple(zip(*(iter(reset_normals),) * 3)))
-        blender_mesh.use_auto_smooth = True
 
 
     blender_mesh_object = bpy.data.objects.new(model.name, blender_mesh)
@@ -188,4 +196,3 @@ def model_to_mesh_object(model: Model, scene : Scene, materials_map : Dict[str,
 
 
     return blender_mesh_object
-

addons/io_scene_swbf_msh/msh_model.py

@@ -73,7 +73,7 @@ class Model:
     name: str = "Model"
     parent: str = ""
     model_type: ModelType = ModelType.NULL
-    hidden: bool = True
+    hidden: bool = False
 
     transform: ModelTransform = field(default_factory=ModelTransform)
 

addons/io_scene_swbf_msh/msh_model_gather.py

@@ -40,6 +40,10 @@ def gather_models(apply_modifiers: bool, export_target: str, skeleton_only: bool
     # Here we just keep track of all names, regardless of origin
     exported_object_names: Set[str] = set() 
 
+    # Me must keep track of hidden objects separately because
+    # evaluated_get clears hidden status
+    blender_objects_to_hide: Set[str] = set()
+
     # Armature must be processed before everything else!
 
     # In this loop we also build a set of names of all objects
@@ -47,6 +51,10 @@ def gather_models(apply_modifiers: bool, export_target: str, skeleton_only: bool
     # groups that do not reference exported objects in the main 
     # model building loop below this one.
     for uneval_obj in select_objects(export_target):
+
+        if get_is_model_hidden(uneval_obj):
+            blender_objects_to_hide.add(uneval_obj.name)
+
         if uneval_obj.type == "ARMATURE" and not armature_found:
             # Keep track of the armature, we don't want to process > 1!
             armature_found = uneval_obj.evaluated_get(depsgraph) if apply_modifiers else uneval_obj
@@ -80,7 +88,6 @@ def gather_models(apply_modifiers: bool, export_target: str, skeleton_only: bool
             model = Model()
             model.name = obj.name
             model.model_type = ModelType.NULL if skeleton_only else get_model_type(obj, armature_found)
-            model.hidden = get_is_model_hidden(obj)
 
             transform = obj.matrix_local
 
@@ -133,6 +140,8 @@ def gather_models(apply_modifiers: bool, export_target: str, skeleton_only: bool
         if get_is_collision_primitive(obj):
             model.collisionprimitive = get_collision_primitive(obj)
 
+        model.hidden = model.name in blender_objects_to_hide
+
         models_list.append(model)
 
     # We removed all composite bones after looking through the objects,
@@ -170,7 +179,7 @@ def create_mesh_geometry(mesh: bpy.types.Mesh, valid_vgroup_indices: Set[int]) -
     vertex_remap: List[Dict[Tuple[int, int], int]] = [dict() for i in range(material_count)]
     polygons: List[Set[int]] = [set() for i in range(material_count)]
 
-    if mesh.vertex_colors.active is not None:
+    if mesh.color_attributes.active_color is not None:
         for segment in segments:
             segment.colors = []
 
@@ -206,7 +215,10 @@ def create_mesh_geometry(mesh: bpy.types.Mesh, valid_vgroup_indices: Set[int]) -
                 yield mesh.uv_layers.active.data[loop_index].uv.y
 
             if segment.colors is not None:
-                for v in mesh.vertex_colors.active.data[loop_index].color:
+                active_color = mesh.color_attributes.active_color
+                data_index = loop_index if active_color.domain == "CORNER" else vertex_index
+
+                for v in mesh.color_attributes.active_color.data[data_index].color:
                     yield v
 
             if segment.weights is not None:
@@ -236,7 +248,10 @@ def create_mesh_geometry(mesh: bpy.types.Mesh, valid_vgroup_indices: Set[int]) -
             segment.texcoords.append(mesh.uv_layers.active.data[loop_index].uv.copy())
 
         if segment.colors is not None:
-            segment.colors.append(list(mesh.vertex_colors.active.data[loop_index].color))
+            active_color = mesh.color_attributes.active_color
+            data_index = loop_index if active_color.domain == "CORNER" else vertex_index
+
+            segment.colors.append(list(active_color.data[data_index].color))
 
         if segment.weights is not None:
             groups = mesh.vertices[vertex_index].groups
@@ -290,6 +305,9 @@ def get_model_type(obj: bpy.types.Object, armature_found: bpy.types.Object) -> M
 def get_is_model_hidden(obj: bpy.types.Object) -> bool:
     """ Gets if a Blender object should be marked as hidden in the .msh file. """
 
+    if obj.hide_get():
+        return True
+
     name = obj.name.lower()
 
     if name.startswith("c_"):
@@ -482,6 +500,7 @@ def expand_armature(armature: bpy.types.Object) -> Dict[str, Model]:
 
         model.model_type = ModelType.BONE if bone.name in proper_BONES else ModelType.NULL
         model.name = bone.name
+        model.hidden = True
         model.transform.rotation = convert_rotation_space(local_rotation)
         model.transform.translation = convert_vector_space(local_translation)
 

addons/io_scene_swbf_msh/msh_scene_read.py

@@ -165,19 +165,23 @@ def _read_matd(matd: Reader) -> Material:
 
         elif next_header == "TX0D":
             with matd.read_child() as tx0d:
-                mat.texture0 = tx0d.read_string()
+                if tx0d.bytes_remaining() > 0:
+                    mat.texture0 = tx0d.read_string()
 
         elif next_header == "TX1D":
             with matd.read_child() as tx1d:
-                mat.texture1 = tx1d.read_string()
+                if tx1d.bytes_remaining() > 0:
+                    mat.texture1 = tx1d.read_string()
 
         elif next_header == "TX2D":
             with matd.read_child() as tx2d:
-                mat.texture2 = tx2d.read_string()
+                if tx2d.bytes_remaining() > 0:
+                    mat.texture2 = tx2d.read_string()
 
         elif next_header == "TX3D":
             with matd.read_child() as tx3d:
-                mat.texture3 = tx3d.read_string()
+                if tx3d.bytes_remaining() > 0:
+                    mat.texture3 = tx3d.read_string()
 
         else:
             matd.skip_bytes(1)
@@ -203,7 +207,9 @@ def _read_modl(modl: Reader, materials_list: List[Material]) -> Model:
 
                 global model_counter
                 global mndx_remap
-                mndx_remap[index] = model_counter
+
+                if index not in mndx_remap:
+                    mndx_remap[index] = model_counter
 
                 model_counter += 1
 

addons/io_scene_swbf_msh/msh_scene_to_blend.py

@@ -195,6 +195,5 @@ def extract_scene(filepath: str, scene: Scene):
     for model in scene.models:
         if model.name in model_map:
             obj = model_map[model.name]
-            if get_is_model_hidden(obj) and len(obj.children) == 0:
+            obj.hide_set(model.hidden or get_is_model_hidden(obj))
-                obj.hide_set(True)
 

addons/io_scene_swbf_msh/msh_utilities.py

@@ -39,12 +39,9 @@ def pack_color(color) -> int:
     return packed
 
 def unpack_color(color: int) -> List[float]:
-
+    r = (color >> 16 & 0xFF) / 255.0
-    mask = int(0x000000ff)
+    g = (color >> 8  & 0xFF) / 255.0
-
+    b = (color >> 0  & 0xFF) / 255.0
-    r = (color & (mask << 16)) / 255.0
+    a = (color >> 24 & 0xFF) / 255.0
-    g = (color & (mask << 8)) / 255.0
-    b = (color & mask) / 255.0
-    a = (color & (mask << 24)) / 255.0
 
     return [r,g,b,a]