feat: Add KoikatsuBlenderPipeline addon with import/export functionality

- Add core addon files (__init__.py, KKPanel.py, preferences.py, common.py)
- Add import pipeline with armature, mesh, and material modification modules
- Add export pipeline with material baking and FBX preparation utilities
- Add material combiner tool for texture atlas generation and optimization
- Add extras utilities for animation, rigging, and asset management
- Add bone orientation data from better_fbx for accurate skeletal structure
- Add comprehensive documentation and wiki with multi-language support (EN, JP, ZH)
- Add animation library retargeting lists for ARP and Rokoko motion capture
- Add Rigify integration scripts for advanced rigging workflows
- Add shader file (KK Shader V8.0.blend) for material rendering
- Add manifest and license files for addon distribution
- Add changelog documenting version history and improvements
- Initialize complete Blender addon project for Koikatsu character import/export

extras/linkshapekeys.py

@@ -0,0 +1,99 @@
+'''
+LINK EYEBROW SHAPEKEYS TO BODY SCRIPT
+Usage:
+- Seperate the eyebrow mesh into its own object
+- Select the eyebrows object, then shift click the body object and run the script to control the eyebrow shapekeys from the body object
+
+Script 90% stolen from https://blender.stackexchange.com/questions/86757/python-how-to-connect-shapekeys-via-drivers
+'''
+import bpy
+from ..interface.dictionary_en import t
+from .. import common as c
+
+def link_keys(shapekey_holder_object, objects_to_link):
+
+    shapekey_list_string = str(shapekey_holder_object.data.shape_keys.key_blocks.keys()).lower()
+    for obj in objects_to_link:
+        bpy.ops.object.select_all(action = 'DESELECT')
+        bpy.context.view_layer.objects.active = obj
+        obj.select_set(True)
+        bpy.ops.object.material_slot_remove_unused()
+        for key in obj.data.shape_keys.key_blocks:
+            if key.name.lower() in shapekey_list_string:
+                if not key.name == obj.data.shape_keys.key_blocks[0]:
+                    skey_driver = key.driver_add('value')
+                    skey_driver.driver.type = 'AVERAGE'
+                    #skey_driver.driver.show_debug_info = True
+                    if skey_driver.driver.variables:
+                        for v in skey_driver.driver.variables:
+                            skey_driver.driver.variables.remove(v)
+                    newVar = skey_driver.driver.variables.new()
+                    newVar.name = "value"
+                    newVar.type = 'SINGLE_PROP'
+                    newVar.targets[0].id_type = 'KEY'
+                    newVar.targets[0].id = shapekey_holder_object.data.shape_keys
+                    newVar.targets[0].data_path = 'key_blocks["' + key.name+ '"].value' 
+                    skey_driver = key.driver_add('mute')
+                    skey_driver.driver.type = 'AVERAGE'
+                    #skey_driver.driver.show_debug_info = True
+                    if skey_driver.driver.variables:
+                        for v in skey_driver.driver.variables:
+                            skey_driver.driver.variables.remove(v)
+                    newVar = skey_driver.driver.variables.new()
+                    newVar.name = "hide"
+                    newVar.type = 'SINGLE_PROP'
+                    newVar.targets[0].id_type = 'KEY'
+                    newVar.targets[0].id = shapekey_holder_object.data.shape_keys
+                    newVar.targets[0].data_path = 'key_blocks["' + key.name+ '"].mute'
+
+
+class link_shapekeys(bpy.types.Operator):
+    bl_idname = "kkbp.linkshapekeys"
+    bl_label = "Link shapekeys"
+    bl_description = t('sep_eye_tt')
+    bl_options = {'REGISTER', 'UNDO'}
+    
+    def execute(self, context):
+        #separate the eyes from the body object
+        body = c.get_body()
+        c.switch(body, 'EDIT')
+
+        def separateMaterial(matList):
+            for mat in matList:
+                try:
+                    def moveUp():
+                        return bpy.ops.object.material_slot_move(direction='UP')
+                    while moveUp() != {"CANCELLED"}:
+                        pass
+                    bpy.context.object.active_material_index = body.data.materials.find(mat)
+                    bpy.ops.object.material_slot_select()
+                except:
+                    print('material wasn\'t found: ' + mat)
+            bpy.ops.mesh.separate(type='SELECTED')
+
+        eye_list = ['KK EyeR (hitomi) ' + c.get_name(),
+                    'KK EyeL (hitomi) ' + c.get_name(),
+                    'KK Eyewhites (sirome) ' + c.get_name(),
+                    'KK Eyeline up ' + c.get_name(), 
+                    'KK Eyeline down ' + c.get_name()]
+        separateMaterial(eye_list)
+
+        eyes = bpy.data.objects[body.name + '.001']
+        eyes.name = 'Eyes'
+        if eyes.modifiers.get('Outline Modifier'):
+            eyes.modifiers['Outline Modifier'].show_viewport = False
+            eyes.modifiers['Outline Modifier'].show_render = False
+        
+        #do the same for the eyebrows
+        separateMaterial(['KK Eyebrows (mayuge) ' + c.get_name()])
+        eyebrows = bpy.data.objects[body.name + '.001']
+        eyebrows.name = 'Eyebrows'
+        if eyebrows.modifiers.get('Outline Modifier'):
+            eyebrows.modifiers['Outline Modifier'].show_viewport = False
+            eyebrows.modifiers['Outline Modifier'].show_render = False
+
+        bpy.ops.object.mode_set(mode = 'OBJECT')
+        link_keys(body, [eyes, eyebrows])
+        
+        return {'FINISHED'}
+