Brand new export script with filtering

Assets/avatar-example/mesh/blend~/fbx_export.py

@@ -0,0 +1,201 @@
+import os
+from datetime import datetime
+
+import bpy
+from bpy.props import StringProperty, BoolProperty, PointerProperty, IntProperty
+from bpy.types import UIList, Operator, Panel, PropertyGroup, Context
+
+from io_scene_fbx import ExportFBX
+
+
+def message_box(message: str, title: str = "Message", icon: str = 'INFO') -> None:
+    """Shows modal window with a message
+
+    :param message: Message text
+    :param title: Window title
+    :param icon: Window icon
+    """
+    def draw(self, context):
+        col = self.layout.column(align=True)
+        for line in message.strip().split("\n"):
+            col.label(line)
+    bpy.context.window_manager.popup_menu(draw, title=title, icon=icon)
+
+
+def name_as_path(name: str) -> str:
+    """Converts and sanitizes an arbitrary string to a canonical path with OS-specific separator
+
+    :param name: Some name
+    :returns: Canonical path
+    """
+    return os.path.join(*[bpy.path.clean_name(n) for n in name.replace("\\", "/").split("/") if n]) + ".fbx"
+
+
+def fbx_export(context: Context) -> None:
+    """
+    Export all objects Groups to ASCII FBX
+    """
+    print("[%s] Batch FBX export begin" % datetime.now())
+
+    rootpath = os.path.normpath(bpy.path.abspath(context.scene.fbx_export.export_dir))
+
+    for group in [g for g in bpy.data.groups if g.fbx_export.exportable]:
+        filepath = os.path.join(rootpath, name_as_path(group.name))
+        basepath = os.path.dirname(filepath)
+
+        if not os.path.exists(basepath):
+            os.makedirs(basepath)
+
+        override = context.copy()
+        override.update(
+            {
+                "selected_objects": [o for o in group.objects if o.fbx_exportable]
+            }
+        )
+
+        bpy.ops.export_scene.fbx(
+            override,
+            version='ASCII6100',
+            use_selection=True,
+            global_scale=1.0,
+            axis_forward='-Z',
+            axis_up='Y',
+            object_types=context.scene.fbx_export.object_types,
+            use_mesh_modifiers=context.scene.fbx_export.use_mesh_modifiers,
+            mesh_smooth_type='OFF',
+            use_mesh_edges=False,
+            use_tspace=False,
+            use_armature_deform_only=False,
+            add_leaf_bones=False,
+            primary_bone_axis='Y',
+            secondary_bone_axis='X',
+            armature_nodetype='NULL',
+            use_anim=False,
+            path_mode='RELATIVE',
+            batch_mode='OFF',
+            use_batch_own_dir=False,
+            filepath=filepath,
+        )
+
+    print("[%s] Batch FBX export end." % datetime.now())
+
+
+def on_save(*args, **kwargs) -> None:
+    """
+    Runs when Blender file is being saved
+    """
+    if not bpy.context.scene.fbx_export.on_save:
+        return
+
+    try:
+        fbx_export(bpy.context)
+    except Exception as e:
+        message_box(str(e), "Export error", 'ERROR')
+
+
+class FBX_OT_ForceExport(Operator):
+    bl_idname = "fbx.force_export"
+    bl_label = "Force Export"
+    bl_description = "Force export FBX"
+
+    def execute(self, context):
+        try:
+            fbx_export(context)
+        except Exception as e:
+            self.report({'ERROR'}, str(e))
+            return {'CANCELLED'}
+        return {'FINISHED'}
+
+
+class AutoexportProps(PropertyGroup):
+    object_types = ExportFBX.object_types
+    use_mesh_modifiers = ExportFBX.use_mesh_modifiers
+    export_dir = StringProperty(
+        name="FBX Export Dir",
+        description="FBX Export Directory",
+        subtype="DIR_PATH",
+        default="//../fbx/",
+    )
+    on_save = BoolProperty(
+        name="Export on save",
+        description="Export FBX on Blender file save",
+        default=True
+    )
+    group_index = IntProperty(default=0)
+
+
+class GroupExportProps(PropertyGroup):
+    exportable = BoolProperty(
+        name="Export Group",
+        description="Mark group as FBX exportable",
+        default=False
+    )
+    obj_index = IntProperty(default=0)
+    show_obj_list = BoolProperty(default=False)
+
+
+class FBX_UL_ExportObjects(UIList):
+    def draw_item(self, context, layout, data, item, icon, active_data, active_propname, index):
+        col = layout.column()
+        row = col.row(align=True)
+        row.prop(item, "fbx_exportable", icon='CHECKBOX_HLT' if item.fbx_exportable else 'CHECKBOX_DEHLT', text="", emboss=False)
+        row.prop(item, "name", text="", emboss=False, icon='OBJECT_DATA' if item.dupli_type == "NONE" else 'OUTLINER_OB_GROUP_INSTANCE')
+
+
+class FBX_UL_ExportItems(UIList):
+    def draw_item(self, context, layout, data, item, icon, active_data, active_propname, index):
+        col = layout.box().column()
+        row = col.split()
+
+        sub = row.row(align=True)
+        # sub.alignment = 'LEFT'
+        sub.prop(item.fbx_export, "exportable", icon='CHECKBOX_HLT' if item.fbx_export.exportable else 'CHECKBOX_DEHLT', text="", emboss=False)
+        sub.prop(item, "name", text="", emboss=False, icon='GROUP')
+        sub = row.row()
+        sub.alignment = 'RIGHT'
+        sub.label(text=str(len(item.objects)), icon='OBJECT_DATA')
+        sub.prop(item.fbx_export, "show_obj_list", icon='TRIA_DOWN' if item.fbx_export.show_obj_list else 'TRIA_LEFT', text="", emboss=False)
+
+        if item.fbx_export.show_obj_list:
+            col.template_list("FBX_UL_ExportObjects", str(index), item, "objects", item.fbx_export, "obj_index", rows=2)
+
+
+class SCENE_PT_fbx_autoexport(Panel):
+    """Creates a Panel in the scene context of the properties editor"""
+    bl_label = "FBX Auto-Export"
+    bl_idname = "SCENE_PT_fbx_autoexport"
+    bl_space_type = 'PROPERTIES'
+    bl_region_type = 'WINDOW'
+    bl_context = "scene"
+
+    def draw(self, context):
+        layout = self.layout
+        scene = context.scene
+        
+        col = layout.column()
+        col.prop(scene.fbx_export, "use_mesh_modifiers")
+        sub = col.row()
+        sub.prop(scene.fbx_export, "object_types")
+        col.template_list("FBX_UL_ExportItems", "", bpy.data, "groups", scene.fbx_export, "group_index", rows=3)
+        
+        col.separator()
+        col.prop(scene.fbx_export, "export_dir")
+        row = col.row(align=True)
+        row.prop(scene.fbx_export, "on_save", icon='LOAD_FACTORY')
+        row.operator(FBX_OT_ForceExport.bl_idname, icon="PASTEDOWN")
+
+
+bpy.types.Object.fbx_exportable = BoolProperty(
+    name="Export Object",
+    description="Mark object as FBX exportable",
+    default=True
+)
+bpy.utils.register_class(FBX_OT_ForceExport)
+bpy.utils.register_class(FBX_UL_ExportObjects)
+bpy.utils.register_class(FBX_UL_ExportItems)
+bpy.utils.register_class(AutoexportProps)
+bpy.utils.register_class(GroupExportProps)
+bpy.types.Scene.fbx_export = PointerProperty(type=AutoexportProps)
+bpy.types.Group.fbx_export = PointerProperty(type=GroupExportProps)
+bpy.utils.register_class(SCENE_PT_fbx_autoexport)
+bpy.app.handlers.save_pre.append(on_save)