feat(blenvy:blender): a ton of cleanups, fixes & improvements

* fixed bad hashing causing hashed project across two different blender sessions to appear different
 aka, no more systematic re-export of everything when reloading a project in blender !
 * fixed issues with modifier & material hashing that was also causing overly eager change detection
 * previous_xxx_settings are now only saved AFTER a sucessfull export, for coherence
 * added more fine grained setting change detection (aka some setting changes do not require a re-export of all levels & blueprints !)
 * fixed handling of level & library scene names as part of the settings
 * fixed numerous issues with core, auto_export & component settings
 * cleaned up a ton of very verbose debug message
 * BlenvyAssets => BlueprintAssets
 * a lot of minor cleanups

tools/blenvy/TODO.md

@@ -139,29 +139,53 @@ General issues:
 - [x] overall cleanup
     - [x] object.add_bevy_component => blenvy.component_add
 
-
+Blender side:
+- [x] force overwrite of settings files instead of partial updates ?
+- [x] prevent loop when loading/setting/saving settings
+- [x] fix asset changes not being detected as a scene change
+- [x] fix scene setting changes not being detected as a scene change
+- [x] add back lighting_components
+- [x] check if scene components are being deleted through our scene re-orgs in the spawn post process
+- [x] fix unreliable project hashing between sessions: (note, it is due to the use of hash() : https://stackoverflow.com/questions/27522626/hash-function-in-python-3-3-returns-different-results-between-sessions)
+- [x] figure out why there are still changes per session (it is due to object pointer being present in the generated "hash")
+    - materials & modifiers, both using the same underlying logic
+        - [x] filter out components_meta
+        - [x] filter out xxx_ui propgroups
+- [x] fix missing main/lib scene names in blenvy_common_settings
+- [x] fix incorect updating of main/lib scenes list in settings
+- [ ] and what about scene renames ?? perhaps tigger a forced "save settings" before doing the export ?
+- [x] should we write the previous _xxx data only AFTER a sucessfull export only ?
+- [x] finer grained control of setting changes to trigger a re-export:
+    - [x] common: any of them should trigger
+    - [x] components: none
+    - [x] auto_export:
+        - auto_export: yes
+        - gltf settings: yes
+        - change detection: no ?
+        - export blueprints: YES
+            - export split dynamic/static: YES
+            - export merge mode : YES
+            - materials: YES
 - [ ] inject_export_path_into_internal_blueprints should be called on every asset/blueprint scan !! Not just on export
 - [ ] undo after a save removes any saved "serialized scene" data ? DIG into this
 - [ ] handle scene renames between saves (breaks diffing) => very hard to achieve
-- [ ] force overwrite of settings files instead of partial updates ?
 - [ ] add tests for disabled components 
-- [ ] should we write the previous _xxx data only AFTER a sucessfull export only ?
+- [ ] find a solution for the new color handling 
+- [ ] hidden objects/collections not respected at export !!!
 - [ ] add option to 'split out' meshes from blueprints ? 
     - [ ] ie considering meshletts etc , it would make sense to keep blueprints seperate from purely mesh gltfs
 - [ ] persist exported materials path in blueprints so that it can be read from library file users
     - [ ] just like "export_path" write it into each blueprint's collection
     - [ ] scan for used materials per blueprint !
     - [ ] for scenes, scan for used materials of all non instance objects (TODO: what about overrides ?)
-- [ ] find a solution for the new color handling 
-- [x] add back lighting_components
-- [x] check if scene components are being deleted through our scene re-orgs in the spawn post process
-- [ ] should "blueprint spawned" only be triggered after all its sub blueprints have spawned ? 
 
+Bevy Side:
+- [x] deprecate BlueprintName & BlueprintPath & use BlueprintInfo instead
+- [ ] should "blueprint spawned" only be triggered after all its sub blueprints have spawned ? 
 - [ ] simplify testing example:
     - [x] remove use of rapier physics (or even the whole common boilerplate ?)
     - [ ] remove/replace bevy editor pls with some native ui to display hierarchies
-- [ ] try out hot reloading
-
+- [x] try out hot reloading
 - [ ] simplify examples:
     - [ ] a full fledged demo (including physics & co)
     - [ ] other examples without interactions or physics 
@@ -170,12 +194,9 @@ General issues:
     - [ ] replace all references to the old 2 add-ons with those to Blenvy
 - [ ] rename repo to "Blenvy"
 - [ ] do a deprecation release of all bevy_gltf_xxx crates to point at the new Blenvy crate
-- [ ] hidden objects/collections not respected at export !!!
 - [ ] add a way of overriding assets for collection instances
     - [ ] add a way of visualizing per blueprint instances
 - [ ] cleanup all the spurious debug messages
-- [ ] deprecate BlueprintName & BlueprintPath & use BlueprintInfo instead
 - [ ] fix animation handling
 
-
 clear && pytest -svv --blender-template ../../testing/bevy_example/art/testing_library.blend --blender-executable /home/ckaos/tools/blender/blender-4.1.0-linux-x64/blender tests/test_bevy_integration_prepare.py  && pytest -svv --blender-executable /home/ckaos/tools/blender/blender-4.1.0-linux-x64/blender tests/test_bevy_integration.py

tools/blenvy/add_ons/auto_export/__init__.py

@@ -11,7 +11,7 @@ def cleanup_file():
         os.remove(gltf_filepath)
         return None
     else:
-        return 1
+        return 1.0
     
 def gltf_post_export_callback(data):
     #print("post_export", data)

tools/blenvy/add_ons/auto_export/blueprints/export_blueprints.py

@@ -36,14 +36,9 @@ def export_blueprints(blueprints, settings, blueprints_data):
 
             collection = bpy.data.collections[blueprint.name]
 
-            print("BLUEPRINT", blueprint.name)
-
-            for asset in collection.user_assets:
-                print("  user asset", asset.name, asset.path)
-
             all_assets = []
             auto_assets = []
-            collection["BlenvyAssets"] = assets_to_fake_ron([]) #assets_to_fake_ron([{"name": asset.name, "path": asset.path} for asset in collection.user_assets] + auto_assets) #all_assets + [{"name": asset.name, "path": asset.path} for asset in collection.user_assets] + auto_assets)
+            collection["BlueprintAssets"] = assets_to_fake_ron([]) #assets_to_fake_ron([{"name": asset.name, "path": asset.path} for asset in collection.user_assets] + auto_assets) #all_assets + [{"name": asset.name, "path": asset.path} for asset in collection.user_assets] + auto_assets)
 
 
             # do the actual export

tools/blenvy/add_ons/auto_export/common/auto_export.py

@@ -51,7 +51,6 @@ def auto_export(changes_per_scene, changed_export_parameters, settings):
         for blueprint in blueprints_data.blueprints:
             bpy.context.window_manager.blueprints_registry.add_blueprint(blueprint)
         #bpy.context.window_manager.blueprints_registry.refresh_blueprints()
-        print("YO YO")
 
         if export_scene_settings:
             # inject/ update scene components

tools/blenvy/add_ons/auto_export/common/duplicate_object.py

@@ -90,7 +90,7 @@ def duplicate_object(object, parent, combine_mode, destination_collection, bluep
         original_name = object.name
         blueprint_name = original_collection.name
         # FIXME: blueprint path is WRONG ! 
-        print("BLUEPRINT PATH", original_collection.get('export_path', None))
+        # print("BLUEPRINT PATH", original_collection.get('export_path', None))
         blueprint_path = original_collection['export_path'] if 'export_path' in original_collection else f'./{blueprint_name}' # TODO: the default requires the currently used extension !!
 
 

tools/blenvy/add_ons/auto_export/common/generate_temporary_scene_and_export.py

@@ -19,7 +19,6 @@ def generate_temporary_scene_and_export(settings, gltf_export_settings, gltf_out
     temp_scene = bpy.data.scenes.new(name=temp_scene_name)
     temp_root_collection = temp_scene.collection
 
-    print("additional_dataAAAAAAAAAAAAAAAH", additional_data)
     properties_black_list = ['glTF2ExportSettings', 'assets', 'user_assets', 'components_meta', 'Components_meta', 'Generated_assets', 'generated_assets']
     if additional_data is not None: # FIXME not a fan of having this here
         for entry in dict(additional_data):

tools/blenvy/add_ons/auto_export/common/prepare_and_export.py

@@ -3,6 +3,7 @@ import bpy
 from .project_diff import get_changes_per_scene
 from .auto_export import auto_export
 from .settings_diff import get_setting_changes
+from blenvy.settings import load_settings, upsert_settings
 
 # prepare export by gather the changes to the scenes & settings
 def prepare_and_export():
@@ -13,17 +14,28 @@ def prepare_and_export():
     if auto_export_settings.auto_export: # only do the actual exporting if auto export is actually enabled
 
         # determine changed objects
-        per_scene_changes = get_changes_per_scene(settings=blenvy)
+        per_scene_changes, project_hash = get_changes_per_scene(settings=blenvy)
         # determine changed parameters 
-        setting_changes = get_setting_changes()
-        print("setting_changes", setting_changes)
+        setting_changes, current_common_settings, current_export_settings, current_gltf_settings = get_setting_changes()
+        print("changes: settings:", setting_changes)
+        print("changes: scenes:", per_scene_changes)
+
+        print("project_hash", project_hash)
         # do the actual export
         # blenvy.auto_export.dry_run = 'NO_EXPORT'#'DISABLED'#
         auto_export(per_scene_changes, setting_changes, blenvy)
 
+        # -------------------------------------
+        # now that this point is reached, the export should have run correctly, so we can save all the current state to the "previous one"
+        # save the current project hash as previous
+        upsert_settings(".blenvy.project_serialized_previous", project_hash, overwrite=True)
+        # write the new settings to the old settings
+        upsert_settings(".blenvy_common_settings_previous", current_common_settings, overwrite=True)
+        upsert_settings(".blenvy_export_settings_previous", current_export_settings, overwrite=True)
+        upsert_settings(".blenvy_gltf_settings_previous", current_gltf_settings, overwrite=True)
+
         # cleanup 
         # TODO: these are likely obsolete
         # reset the list of changes in the tracker
         #bpy.context.window_manager.auto_export_tracker.clear_changes()
         print("AUTO EXPORT DONE")            
-        #bpy.app.timers.register(bpy.context.window_manager.auto_export_tracker.enable_change_detection, first_interval=0.1)

tools/blenvy/add_ons/auto_export/common/project_diff.py

@@ -22,6 +22,7 @@ def serialize_current(settings):
     current_scene = bpy.context.window.scene
     bpy.context.window.scene = bpy.data.scenes[0]
     #serialize scene at frame 0
+    # TODO: add back
     """with bpy.context.temp_override(scene=bpy.data.scenes[1]):
         bpy.context.scene.frame_set(0)"""
     
@@ -38,7 +39,6 @@ def get_changes_per_scene(settings):
     previous = load_settings(".blenvy.project_serialized_previous")
     current = serialize_current(settings)
 
-
     # determine changes
     changes_per_scene = {}
     try:
@@ -46,11 +46,7 @@ def get_changes_per_scene(settings):
     except Exception as error:
         print("failed to compare current serialized scenes to previous ones", error)
 
-    # save the current project as previous
-    upsert_settings(".blenvy.project_serialized_previous", current, overwrite=True)
-
-    print("changes per scene", changes_per_scene)
-    return changes_per_scene
+    return changes_per_scene, current
 
 
 def project_diff(previous, current, settings):
@@ -58,17 +54,13 @@ def project_diff(previous, current, settings):
     print("current", current)"""
     if previous is None or current is None:
         return {}
-    print("Settings", settings,"current", current, "previous", previous)
     
     changes_per_scene = {}
 
     # TODO : how do we deal with changed scene names ???
     # possible ? on each save, inject an id into each scene, that cannot be copied over
 
-    print('TEST SCENE', bpy.data.scenes.get("ULTRA LEVEL2"), None)
-
     for scene in current:
-        print("SCENE", scene)
         current_object_names =list(current[scene].keys())
 
         if scene in previous: # we can only compare scenes that are in both previous and current data

tools/blenvy/add_ons/auto_export/common/serialize_scene.py

@@ -7,13 +7,23 @@ import numpy as np
 import bpy
 from ..constants import TEMPSCENE_PREFIX
 
+import hashlib
+
+# horrible and uneficient
+def h1_hash(w):
+    try:
+        w = w.encode('utf-8')
+    except: pass
+    return hashlib.md5(w).hexdigest()
 
 fields_to_ignore_generic = [
     "tag", "type", "update_tag", "use_extra_user", "use_fake_user", "user_clear", "user_of_id", "user_remap", "users",
     'animation_data_clear', 'animation_data_create', 'asset_clear', 'asset_data', 'asset_generate_preview', 'asset_mark', 'bl_rna', 'evaluated_get',
     'library', 'library_weak_reference', 'make_local','name', 'name_full', 'original',
     'override_create', 'override_hierarchy_create', 'override_library', 'preview', 'preview_ensure', 'rna_type',
-    'session_uid', 'copy', 'id_type', 'is_embedded_data', 'is_evaluated', 'is_library_indirect', 'is_missing', 'is_runtime_data'
+    'session_uid', 'copy', 'id_type', 'is_embedded_data', 'is_evaluated', 'is_library_indirect', 'is_missing', 'is_runtime_data',
+
+    'components_meta', 'cycles'
 ]
 
 
@@ -40,9 +50,7 @@ def _lookup_array2(data):
     return peel_value(data)
 
 def _lookup_prop_group(data):
-    bla = generic_fields_hasher_evolved(data, fields_to_ignore=fields_to_ignore_generic)
-    print("PROPGROUP", bla)
-    return bla
+    return generic_fields_hasher_evolved(data, fields_to_ignore=fields_to_ignore_generic)
 
 def _lookup_collection(data):
     return [generic_fields_hasher_evolved(item, fields_to_ignore=fields_to_ignore_generic) for item in data]
@@ -50,9 +58,16 @@ def _lookup_collection(data):
 def _lookup_materialLineArt(data):
     return generic_fields_hasher_evolved(data, fields_to_ignore=fields_to_ignore_generic)
 
+def _lookup_object(data):
+    return data.name
+    return generic_fields_hasher_evolved(data, fields_to_ignore=fields_to_ignore_generic)
+
+def _lookup_generic(data):
+    return generic_fields_hasher_evolved(data, fields_to_ignore=fields_to_ignore_generic)
+
 # used for various node trees: shaders, modifiers etc
 def node_tree(node_tree):
-    print("SCANNING NODE TREE", node_tree)
+    #print("SCANNING NODE TREE", node_tree)
 
     # storage for hashing
     links_hashes = []
@@ -99,18 +114,19 @@ def node_tree(node_tree):
         links_hashes.append(link_hash)
 
     #print("node hashes",nodes_hashes, "links_hashes", links_hashes)
-    print("root_inputs", root_inputs)
     return f"{str(root_inputs)}_{str(nodes_hashes)}_{str(links_hashes)}"
 
 
 type_lookups = {
     Color: _lookup_color,#lambda input: print("dsf")',
+    bpy.types.Object: _lookup_object,
     bpy.types.FloatVectorAttribute: _lookup_array2,
     bpy.types.bpy_prop_array: _lookup_array,
     bpy.types.PropertyGroup: _lookup_prop_group,
     bpy.types.bpy_prop_collection: _lookup_collection,
     bpy.types.MaterialLineArt: _lookup_materialLineArt,
     bpy.types.NodeTree: node_tree,
+    bpy.types.CurveProfile: _lookup_generic
 }
 
 def convert_field(raw_value, field_name="", scan_node_tree=True):
@@ -122,6 +138,7 @@ def convert_field(raw_value, field_name="", scan_node_tree=True):
     conversion_lookup = None # type_lookups.get(type(raw_value), None)
     all_types = inspect.getmro(type(raw_value))            
     for s_type in all_types:
+        #print("  stype", s_type)
         if type_lookups.get(s_type, None) is not None:
             conversion_lookup = type_lookups[s_type]
             break
@@ -132,6 +149,9 @@ def convert_field(raw_value, field_name="", scan_node_tree=True):
         #print("field_name",field_name,"conv value", field_value)
     else:
         #print("field_name",field_name,"raw value", raw_value)
+        """try:
+            field_value=_lookup_generic(raw_value)
+        except:pass"""
         field_value = raw_value
     
     return field_value
@@ -146,6 +166,7 @@ def obj_to_dict(object):
 # TODO: replace the first one with this once if its done 
 def generic_fields_hasher_evolved(data, fields_to_ignore, scan_node_tree=True):
     dict_data = obj_to_dict(data) # in some cases, some data is in the key/value pairs of the object
+    dict_data = {key: dict_data[key] for key in dict_data.keys() if key not in fields_to_ignore}# we need to filter out fields here too
     all_field_names = dir(data)
     field_values = []
     for field_name in all_field_names:
@@ -153,6 +174,8 @@ def generic_fields_hasher_evolved(data, fields_to_ignore, scan_node_tree=True):
             raw_value = getattr(data, field_name, None)
             #print("raw value", raw_value, "type", type(raw_value), isinstance(raw_value, Color), isinstance(raw_value, bpy.types.bpy_prop_array))
             field_value = convert_field(raw_value, field_name, scan_node_tree)
+            #print("field name", field_name, "raw", raw_value, "converted", field_value)
+
             field_values.append(str(field_value))
 
     return str(dict_data) + str(field_values)
@@ -163,7 +186,7 @@ def mesh_hash(obj):
     vertex_count = len(obj.data.vertices)
     vertices_np = np.empty(vertex_count * 3, dtype=np.float32)
     obj.data.vertices.foreach_get("co", vertices_np)
-    h = str(hash(vertices_np.tobytes()))
+    h = str(h1_hash(vertices_np.tobytes()))
     return h
 
 # TODO: redo this one, this is essentially modifiec copy & pasted data, not fitting
@@ -202,7 +225,7 @@ def animation_hash(obj):
                 markers_per_animation[animation_name][marker.frame] = []
             markers_per_animation[animation_name][marker.frame].append(marker.name)
 
-    compact_result = hash(str((blender_actions, blender_tracks, markers_per_animation, animations_infos)))
+    compact_result = h1_hash(str((blender_actions, blender_tracks, markers_per_animation, animations_infos)))
     return compact_result
 
 
@@ -213,7 +236,7 @@ def custom_properties_hash(obj):
     for property_name in obj.keys():
         if property_name not in '_RNA_UI' and property_name != 'components_meta':
             custom_properties[property_name] = obj[property_name]
-    return str(hash(str(custom_properties)))
+    return str(h1_hash(str(custom_properties)))
 
 def camera_hash(obj):
     camera_data = obj.data
@@ -233,7 +256,7 @@ def bones_hash(bones):
         fields = [getattr(bone, prop, None)  for prop in all_field_names if not prop.startswith("__") and not prop in fields_to_ignore and not prop.startswith("show_")]
         bones_result.append(fields)
     #print("fields of bone", bones_result)
-    return str(hash(str(bones_result)))
+    return str(h1_hash(str(bones_result)))
 
 # fixme: not good enough ?
 def armature_hash(obj):
@@ -250,8 +273,10 @@ def armature_hash(obj):
 
 def material_hash(material, settings):
     scan_node_tree = settings.auto_export.materials_in_depth_scan
-    hashed_material_except_node_tree = generic_fields_hasher_evolved(material, fields_to_ignore_generic, scan_node_tree=scan_node_tree)
-    return str(hashed_material_except_node_tree)
+    #print("HASHING MATERIAL", material.name)
+    hashed_material = generic_fields_hasher_evolved(material, fields_to_ignore_generic, scan_node_tree=scan_node_tree)
+    #print("HASHED MATERIAL", hashed_material)
+    return str(hashed_material)
 
 # TODO: this is partially taken from export_materials utilities, perhaps we could avoid having to fetch things multiple times ?
 def materials_hash(obj, cache, settings):
@@ -271,21 +296,23 @@ def materials_hash(obj, cache, settings):
         cache['materials'][material.name] = mat
         materials.append(mat)
 
-    return str(hash(str(materials)))
+    return str(h1_hash(str(materials)))
 
 def modifier_hash(modifier_data, settings):
     scan_node_tree = settings.auto_export.modifiers_in_depth_scan
+    #print("HASHING MODIFIER", modifier_data.name)
     hashed_modifier = generic_fields_hasher_evolved(modifier_data, fields_to_ignore_generic, scan_node_tree=scan_node_tree)
+    #print("modifier", modifier_data.name, "hashed", hashed_modifier)
     return str(hashed_modifier)
     
 
 def modifiers_hash(object, settings):
     modifiers = []
     for modifier in object.modifiers:
-        print("modifier", modifier )# modifier.node_group)
+        #print("modifier", modifier )# modifier.node_group)
         modifiers.append(modifier_hash(modifier, settings))
-        print("  ")
-    return str(hash(str(modifiers)))
+        #print("  ")
+    return str(h1_hash(str(modifiers)))
 
 def serialize_scene(settings): 
     cache = {"materials":{}}
@@ -309,16 +336,15 @@ def serialize_scene(settings):
             "custom_properties": custom_properties,
             "eevee": eevee_settings
         }
-        print("SCENE WORLD", scene.world, dir(scene.eevee))
         #generic_fields_hasher_evolved(scene.eevee, fields_to_ignore=fields_to_ignore_generic)
-        data[scene.name]["____scene_settings"] = str(hash(str(scene_field_hashes)))
+        # FIXME: how to deal with this cleanly
+        print("SCENE CUSTOM PROPS", custom_properties)
+        data[scene.name]["____scene_settings"] = str(h1_hash(str(scene_field_hashes)))
 
 
         for object in scene.objects:
             object = bpy.data.objects[object.name]
-
             #loc, rot, scale = bpy.context.object.matrix_world.decompose()
-
             transform = str((object.location, object.rotation_euler, object.scale)) #str((object.matrix_world.to_translation(), object.matrix_world.to_euler('XYZ'), object.matrix_world.to_quaternion()))#
             visibility = object.visible_get()            
             custom_properties = custom_properties_hash(object) if len(object.keys()) > 0 else None
@@ -332,7 +358,6 @@ def serialize_scene(settings):
             materials = materials_hash(object, cache, settings) if len(object.material_slots) > 0 else None
             modifiers = modifiers_hash(object, settings) if len(object.modifiers) > 0 else None
 
-
             object_field_hashes = {
                 "name": object.name,
                 "transforms": transform,
@@ -348,8 +373,9 @@ def serialize_scene(settings):
                 "materials": materials,
                 "modifiers":modifiers
             }
+
             object_field_hashes_filtered = {key: object_field_hashes[key] for key in object_field_hashes.keys() if object_field_hashes[key] is not None}
-            objectHash = str(hash(str(object_field_hashes_filtered)))
+            objectHash = str(h1_hash(str(object_field_hashes_filtered)))
             data[scene.name][object.name] = objectHash
 
     """print("data", data)

tools/blenvy/add_ons/auto_export/common/serialize_scene_bak.py

@@ -1,56 +0,0 @@
-  #print("THIS IS A GEOMETRY NODE") 
-
-        # storage for hashing
-        links_hashes = []
-        nodes_hashes = []
-        modifier_inputs = dict(modifier_data)
-
-        for node in node_group.nodes:
-            #print("node", node, node.type, node.name, node.label)
-            #print("node info", dir(node))
-
-            input_hashes = []
-            for input in node.inputs:
-                #print(" input", input, "label", input.label, "name", input.name)
-                input_hash = f"{getattr(input, 'default_value', None)}"
-                input_hashes.append(input_hash)
-                """if hasattr(input, "default_value"):
-                    print("YOHO", dict(input), input.default_value)"""
-
-            output_hashes = []
-            # IF the node itself is a group input, its outputs are the inputs of the geometry node (yes, not easy)
-            node_in_use = True
-            for (index, output) in enumerate(node.outputs):
-                # print(" output", output, "label", output.label, "name", output.name, "generated name", f"Socket_{index+1}")
-                output_hash = f"{getattr(output, 'default_value', None)}"
-                output_hashes.append(output_hash)
-                """if hasattr(output, "default_value"):
-                    print("YOHO", output.default_value)"""
-                node_in_use = node_in_use and hasattr(output, "default_value")
-            #print("NODE IN USE", node_in_use)
-
-            node_fields_to_ignore = fields_to_ignore_generic + ['internal_links', 'inputs', 'outputs']
-
-            node_hash = f"{generic_fields_hasher(node, node_fields_to_ignore)}_{str(input_hashes)}_{str(output_hashes)}"
-            #print("node hash", node_hash)
-            nodes_hashes.append(node_hash)
-            #print(" ")
-
-        for link in node_group.links:
-            """print("LINK", link) #dir(link)
-            print("FROM", link.from_node, link.from_socket)
-            print("TO", link.to_node, link.to_socket)"""
-
-            from_socket_default = link.from_socket.default_value if hasattr(link.from_socket, "default_value") else None
-            to_socket_default = link.to_socket.default_value if hasattr(link.to_socket, "default_value") else None
-            link_hash = f"{link.from_node.name}_{link.from_socket.name}_{from_socket_default}+{link.to_node.name}_{link.to_socket.name}_{to_socket_default}"
-
-            """if hasattr(link.from_socket, "default_value"):
-                print("[FROM SOCKET]", link.from_socket.default_value)
-            if hasattr(link.to_socket, "default_value"):
-                print("[TO SOCKET]", link.to_socket.default_value)"""
-
-            links_hashes.append(link_hash)
-            #print("link_hash", link_hash)
-
-        return f"{str(modifier_inputs)}_{str(nodes_hashes)}_{str(links_hashes)}"

tools/blenvy/add_ons/auto_export/common/settings_diff.py

@@ -1,8 +1,8 @@
 import bpy
 
-from blenvy.settings import are_settings_identical, load_settings, upsert_settings
+from blenvy.settings import are_settings_identical, load_settings, changed_settings
 
-# which settings are specific to auto_export # TODO: can we infer this ?
+# which common settings changes should trigger a re-export 
 parameter_names_whitelist_common = [
     # blenvy core
     'project_root_path',
@@ -14,6 +14,7 @@ parameter_names_whitelist_common = [
     'library_scene_names',
 ]
 
+# which auto export settings changes should trigger a re-export 
 parameter_names_whitelist_auto_export = [
     # auto export
     'export_scene_settings',
@@ -24,34 +25,29 @@ parameter_names_whitelist_auto_export = [
 ]
 
 def get_setting_changes():
-    print("get setting changes")
+     previous_common_settings = load_settings(".blenvy_common_settings_previous")
+     current_common_settings = load_settings(".blenvy_common_settings")
+     changed_common_settings_fields = changed_settings(previous_common_settings, current_common_settings, white_list=parameter_names_whitelist_common)
+     common_settings_changed = len(changed_common_settings_fields) > 0
 
-    previous_common_settings = load_settings(".blenvy_common_settings_previous")
-    current_common_settings = load_settings(".blenvy_common_settings")
-    common_settings_changed = not are_settings_identical(previous_common_settings, current_common_settings, white_list=parameter_names_whitelist_common)
+     previous_export_settings = load_settings(".blenvy_export_settings_previous")
+     current_export_settings = load_settings(".blenvy_export_settings")
+     changed_export_settings_fields = changed_settings(previous_export_settings, current_export_settings, white_list=parameter_names_whitelist_auto_export)
+     export_settings_changed = len(changed_export_settings_fields) > 0
 
-    previous_export_settings = load_settings(".blenvy_export_settings_previous")
-    current_export_settings = load_settings(".blenvy_export_settings")
-    export_settings_changed = not are_settings_identical(previous_export_settings, current_export_settings, white_list=parameter_names_whitelist_auto_export)
+     previous_gltf_settings = load_settings(".blenvy_gltf_settings_previous")
+     current_gltf_settings = load_settings(".blenvy_gltf_settings")
+     gltf_settings_changed = not are_settings_identical(previous_gltf_settings, current_gltf_settings)
 
-    previous_gltf_settings = load_settings(".blenvy_gltf_settings_previous")
-    current_gltf_settings = load_settings(".blenvy_gltf_settings")
-    print("previous_gltf_settings", previous_gltf_settings, "current_gltf_settings", current_gltf_settings)
-    gltf_settings_changed = not are_settings_identical(previous_gltf_settings, current_gltf_settings)
+     settings_changed = common_settings_changed or gltf_settings_changed or export_settings_changed
 
-    # write the new settings to the old settings
-    upsert_settings(".blenvy_common_settings_previous", current_common_settings, overwrite=True)
-    upsert_settings(".blenvy_export_settings_previous", current_export_settings, overwrite=True)
-    upsert_settings(".blenvy_gltf_settings_previous", current_gltf_settings, overwrite=True)
+     # if there were no setting before, it is new, we need export # TODO: do we even need this ? I guess in the case where both the previous & the new one are both none ? very unlikely, but still
+     if previous_common_settings is None:
+          settings_changed = True
+     if previous_export_settings is None:
+          settings_changed = True
+     if previous_gltf_settings is None:
+          settings_changed = True
 
-    print("common_settings_changed", common_settings_changed,"export_settings_changed", export_settings_changed, "gltf_settings_changed", gltf_settings_changed, )
 
-    # if there were no setting before, it is new, we need export # TODO: do we even need this ? I guess in the case where both the previous & the new one are both none ? very unlikely, but still
-    if previous_common_settings is None:
-         return True
-    if previous_export_settings is None:
-         return True
-    if previous_gltf_settings is None:
-         return True
-
-    return common_settings_changed or gltf_settings_changed or export_settings_changed
+     return settings_changed, current_common_settings, current_export_settings, current_gltf_settings

tools/blenvy/add_ons/auto_export/levels/export_main_scenes.py

@@ -41,11 +41,11 @@ def export_main_scene(scene, settings, blueprints_data):
         gltf_output_path = os.path.join(levels_path_full, scene.name)
 
         inject_blueprints_list_into_main_scene(scene, blueprints_data, settings)
-        print("main scene", scene)
+        """print("main scene", scene)
         for asset in scene.user_assets:
             print("  user asset", asset.name, asset.path)
         for asset in scene.generated_assets:
-            print("  generated asset", asset)
+            print("  generated asset", asset)"""
         """for blueprint in blueprints_data.blueprints_per_scenes[scene.name]:
             print("BLUEPRINT", blueprint)"""
         blueprint_instances_in_scene = blueprints_data.blueprint_instances_per_main_scene.get(scene.name, {}).keys()
@@ -69,7 +69,7 @@ def export_main_scene(scene, settings, blueprints_data):
 
             # now also add the assets of the blueprints # TODO: wait no , these should not be a part of the (scene) local assets
             for asset in blueprint.collection.user_assets:
-                print("adding assets of blueprint", asset.name)
+                #print("adding assets of blueprint", asset.name)
                 all_assets.append({"name": asset.name, "path": asset.path})
 
         """for asset in auto_assets:
@@ -81,8 +81,8 @@ def export_main_scene(scene, settings, blueprints_data):
         materials_exported_path = os.path.join(materials_path, f"{materials_library_name}{export_gltf_extension}")
         material_assets = [{"name": materials_library_name, "path": materials_exported_path}] # we also add the material library as an asset
 
-        scene["BlenvyAssets"] = assets_to_fake_ron(all_assets + [{"name": asset.name, "path": asset.path} for asset in scene.user_assets] + auto_assets + material_assets)
-        #scene["BlenvyAssets"] = assets_to_fake_ron([{'name':'foo', 'path':'bar'}])
+        scene["BlueprintAssets"] = assets_to_fake_ron(all_assets + [{"name": asset.name, "path": asset.path} for asset in scene.user_assets] + auto_assets + material_assets)
+        #scene["BlueprintAssets"] = assets_to_fake_ron([{'name':'foo', 'path':'bar'}])
 
         if export_separate_dynamic_and_static_objects:
             #print("SPLIT STATIC AND DYNAMIC")

tools/blenvy/add_ons/auto_export/settings.py

@@ -9,13 +9,12 @@ settings_black_list = ['settings_save_enabled', 'dry_run']
 def save_settings(settings, context): 
     if settings.settings_save_enabled:
         settings_dict =  generate_complete_settings_dict(settings, AutoExportSettings, [])
-        print("save settings", settings, context, settings_dict)
         upsert_settings(settings.settings_save_path, {key: settings_dict[key] for key in settings_dict.keys() if key not in settings_black_list}, overwrite=True)
 
 class AutoExportSettings(PropertyGroup):
 
     settings_save_path = ".blenvy_export_settings" # where to store data in bpy.texts
-    settings_save_enabled = BoolProperty(name="settings save enabled", default=True)
+    settings_save_enabled: BoolProperty(name="settings save enabled", default=True) # type: ignore
 
     auto_export: BoolProperty(
         name='Auto export',
@@ -119,7 +118,6 @@ class AutoExportSettings(PropertyGroup):
             self.settings_save_enabled = False # we disable auto_saving of our settings
             try:
                 for setting in settings:
-                    print("setting", setting, settings[setting])
                     setattr(self, setting, settings[setting])
             except: pass
             # TODO: remove setting if there was a failure

tools/blenvy/add_ons/bevy_components/settings.py

@@ -1,7 +1,7 @@
 import os
 import bpy
 from bpy_types import (PropertyGroup)
-from bpy.props import (EnumProperty, PointerProperty, StringProperty, BoolProperty, CollectionProperty, IntProperty)
+from bpy.props import (EnumProperty, PointerProperty, StringProperty, BoolProperty, CollectionProperty, FloatProperty)
 from blenvy.settings import load_settings, upsert_settings, generate_complete_settings_dict
 from .propGroups.prop_groups import generate_propertyGroups_for_components
 from .components.metadata import ensure_metadata_for_all_items
@@ -18,7 +18,6 @@ def save_settings(settings, context):
 
 # helper function to deal with timer
 def toggle_watcher(self, context):
-    #print("toggling watcher", self.watcher_enabled, watch_schema, self, bpy.app.timers)
     if not self.watcher_enabled:
         try:
             bpy.app.timers.unregister(watch_schema)
@@ -76,12 +75,12 @@ class ComponentsSettings(PropertyGroup):
     watcher_enabled: BoolProperty(name="Watcher_enabled", default=True, update=toggle_watcher)# type: ignore
     watcher_active: BoolProperty(name = "Flag for watcher status", default = False)# type: ignore
 
-    watcher_poll_frequency: IntProperty(
+    watcher_poll_frequency: FloatProperty(
         name="watcher poll frequency",
         description="frequency (s) at wich to poll for changes to the registry file",
-        min=1,
-        max=10,
-        default=1,
+        min=1.0,
+        max=10.0,
+        default=1.0,
         update=save_settings
     )# type: ignore
     
@@ -134,7 +133,6 @@ class ComponentsSettings(PropertyGroup):
             self.settings_save_enabled = False # we disable auto_saving of our settings
             try:
                 for setting in settings:
-                    print("setting", setting, settings[setting])
                     setattr(self, setting, settings[setting])
             except:pass
             try:

tools/blenvy/assets/assets_scan.py

@@ -19,14 +19,13 @@ def scan_assets(scene, blueprints_data, settings):
         for blueprint_name in blueprint_instance_names_for_scene:
             blueprint = blueprints_data.blueprints_per_name.get(blueprint_name, None)
             if blueprint is not None: 
-                print("BLUEPRINT", blueprint)
+                #print("BLUEPRINT", blueprint)
                 blueprint_exported_path = None
                 if blueprint.local:
                     blueprint_exported_path = os.path.join(relative_blueprints_path, f"{blueprint.name}{export_gltf_extension}")
                 else:
                     # get the injected path of the external blueprints
                     blueprint_exported_path = blueprint.collection['Export_path'] if 'Export_path' in blueprint.collection else None
-                    print("foo", dict(blueprint.collection))
                 if blueprint_exported_path is not None:
                     blueprint_assets_list.append({"name": blueprint.name, "path": blueprint_exported_path})
                 
@@ -45,7 +44,7 @@ def scan_assets(scene, blueprints_data, settings):
     assets_list_name = f"assets_{scene.name}"
     assets_list_data = {"blueprints": json.dumps(blueprint_assets_list), "sounds":[], "images":[]}
 
-    print("blueprint assets", blueprint_assets_list)
+    #print("blueprint assets", blueprint_assets_list)
 
 
 def get_userTextures():

tools/blenvy/assets/ui.py

@@ -42,9 +42,7 @@ def draw_assets(layout, name, title, asset_registry, target_type, target_name, e
         if editable:
             row = panel.row()
         #panel.separator()
-        print("here", user_assets)
         for asset in user_assets:
-            print("asset", asset)
             row = panel.row()
             split  = row.split(factor=nesting_indent)
             col = split.column()

tools/blenvy/blueprints/blueprint_helpers.py

@@ -17,13 +17,12 @@ def find_blueprints_not_on_disk(blueprints, folder_path, extension):
 def check_if_blueprint_on_disk(scene_name, folder_path, extension):
     gltf_output_path = os.path.join(folder_path, scene_name + extension)
     found = os.path.exists(gltf_output_path) and os.path.isfile(gltf_output_path)
-    print("level", scene_name, "found", found, "path", gltf_output_path)
     return found
 
 def inject_export_path_into_internal_blueprints(internal_blueprints, blueprints_path, gltf_extension):
     for blueprint in internal_blueprints:
         blueprint_exported_path = os.path.join(blueprints_path, f"{blueprint.name}{gltf_extension}")
-        print("injecting blueprint path", blueprint_exported_path, "for", blueprint.name)
+        # print("injecting blueprint path", blueprint_exported_path, "for", blueprint.name)
 
         blueprint.collection["export_path"] = blueprint_exported_path
 
@@ -44,14 +43,14 @@ def inject_blueprints_list_into_main_scene(scene, blueprints_data, settings):
         for blueprint_name in blueprint_instance_names_for_scene:
             blueprint = blueprints_data.blueprints_per_name.get(blueprint_name, None)
             if blueprint is not None: 
-                print("BLUEPRINT", blueprint)
+                #print("BLUEPRINT", blueprint)
                 blueprint_exported_path = None
                 if blueprint.local:
                     blueprint_exported_path = os.path.join(blueprints_path, f"{blueprint.name}{export_gltf_extension}")
                 else:
                     # get the injected path of the external blueprints
                     blueprint_exported_path = blueprint.collection['Export_path'] if 'Export_path' in blueprint.collection else None
-                    print("foo", dict(blueprint.collection))
+                    #print("foo", dict(blueprint.collection))
                 if blueprint_exported_path is not None:
                     blueprint_assets_list.append({"name": blueprint.name, "path": blueprint_exported_path, "type": "MODEL", "internal": True})
                 
@@ -61,9 +60,7 @@ def inject_blueprints_list_into_main_scene(scene, blueprints_data, settings):
     assets_list_name = f"assets_{scene.name}"
     scene["assets"] = json.dumps(blueprint_assets_list)
 
-    print("blueprint assets", blueprint_assets_list)
-    """add_scene_property(scene, assets_list_name, assets_list_data)
-    """
+    #print("blueprint assets", blueprint_assets_list)
 
 def remove_blueprints_list_from_main_scene(scene):
     assets_list = None

tools/blenvy/core/blenvy_manager.py

@@ -7,31 +7,25 @@ import blenvy.add_ons.auto_export.settings as auto_export_settings
 import blenvy.add_ons.bevy_components.settings as component_settings
 
 
-
 # list of settings we do NOT want to save
-settings_black_list = ['settings_save_enabled', 'main_scene_selector', 'main_scenes', 'main_scenes_index', 'library_scene_selector', 'library_scenes', 'library_scenes_index',
-                       #'project_root_path_full', 'assets_path_full', '' 
-                       ]
+settings_black_list = ['settings_save_enabled', 'main_scene_selector', 'library_scene_selector']
 
 def save_settings(settings, context):  
     if settings.settings_save_enabled:
         settings_dict =  generate_complete_settings_dict(settings, BlenvyManager, [])
-        print("save settings", settings, context, settings_dict)
-        # upsert_settings(settings.settings_save_path, {key: settings_dict[key] for key in settings_dict.keys() if key not in settings_black_list})
+        raw_settings =  {key: settings_dict[key] for key in settings_dict.keys() if key not in settings_black_list}
+        # we need to inject the main & library scene names as they are computed properties, not blender ones
+        raw_settings['main_scenes_names'] = settings.main_scenes_names
+        raw_settings['library_scenes_names'] = settings.library_scenes_names
+        upsert_settings(settings.settings_save_path, raw_settings, overwrite=True)
 
-def update_scene_lists(blenvy, context):                
-    blenvy.main_scene_names = [scene.name for scene in blenvy.main_scenes] # FIXME: unsure
-    blenvy.library_scene_names = [scene.name for scene in blenvy.library_scenes] # FIXME: unsure
-    upsert_settings(blenvy.settings_save_path, {"main_scene_names": [scene.name for scene in blenvy.main_scenes]})
-    upsert_settings(blenvy.settings_save_path, {"library_scene_names": [scene.name for scene in blenvy.library_scenes]})
-
-def update_asset_folders(blenvy, context):
+def update_asset_folders(settings, context):
     asset_path_names = ['project_root_path', 'assets_path', 'blueprints_path', 'levels_path', 'materials_path']
     for asset_path_name in asset_path_names:
-        upsert_settings(blenvy.settings_save_path, {asset_path_name: getattr(blenvy, asset_path_name)})
+        upsert_settings(settings.settings_save_path, {asset_path_name: getattr(settings, asset_path_name)})
+    settings_dict =  generate_complete_settings_dict(settings, BlenvyManager, [])
+    upsert_settings(settings.settings_save_path, {key: settings_dict[key] for key in settings_dict.keys() if key not in settings_black_list}, overwrite=True)
 
-def update_mode(blenvy, context):
-    upsert_settings(blenvy.settings_save_path, {"mode": blenvy.mode })
 
 def is_scene_already_in_use(self, scene):
     try:
@@ -45,7 +39,7 @@ def is_scene_already_in_use(self, scene):
 class BlenvyManager(PropertyGroup):
 
     settings_save_path = ".blenvy_common_settings" # where to store data in bpy.texts
-    settings_save_enabled = BoolProperty(name="settings save enabled", default=True)
+    settings_save_enabled: BoolProperty(name="settings save enabled", default=True) # type: ignore
 
     mode: EnumProperty(
         items=(
@@ -56,14 +50,15 @@ class BlenvyManager(PropertyGroup):
                 ('SETTINGS', "Settings", ""),
                 ('TOOLS', "Tools", ""),
         ),
-        update=update_mode
+        default="SETTINGS",
+        update=save_settings
     ) # type: ignore
     
     project_root_path: StringProperty(
         name = "Project Root Path",
         description="The root folder of your (Bevy) project (not assets!)",
         default='../',
-        update= update_asset_folders
+        update= save_settings
     ) # type: ignore
 
     # computed property for the absolute path of assets
@@ -76,7 +71,7 @@ class BlenvyManager(PropertyGroup):
         description='The root folder for all exports(relative to the root folder/path) Defaults to "assets" ',
         default='./assets',
         options={'HIDDEN'},
-        update= update_asset_folders
+        update= save_settings
     ) # type: ignore
     
     # computed property for the absolute path of assets
@@ -88,7 +83,7 @@ class BlenvyManager(PropertyGroup):
         name='Blueprints path',
         description='path to export the blueprints to (relative to the assets folder)',
         default='blueprints',
-        update= update_asset_folders
+        update= save_settings
     ) # type: ignore
 
     # computed property for the absolute path of blueprints
@@ -100,7 +95,7 @@ class BlenvyManager(PropertyGroup):
         name='Levels path',
         description='path to export the levels (main scenes) to (relative to the assets folder)',
         default='levels',
-        update= update_asset_folders
+        update= save_settings
     ) # type: ignore
 
     # computed property for the absolute path of blueprints
@@ -112,7 +107,7 @@ class BlenvyManager(PropertyGroup):
         name='Materials path',
         description='path to export the materials libraries to (relative to the assets folder)',
         default='materials',
-        update= update_asset_folders
+        update= save_settings
     ) # type: ignore
 
     # computed property for the absolute path of blueprints
@@ -124,8 +119,8 @@ class BlenvyManager(PropertyGroup):
     auto_export: PointerProperty(type=auto_export_settings.AutoExportSettings) # type: ignore
     components: PointerProperty(type=component_settings.ComponentsSettings) # type: ignore
 
-    main_scene_selector: PointerProperty(type=bpy.types.Scene, name="main scene", description="main_scene_picker", poll=is_scene_already_in_use)# type: ignore
-    library_scene_selector: PointerProperty(type=bpy.types.Scene, name="library scene", description="library_scene_picker", poll=is_scene_already_in_use)# type: ignore
+    main_scene_selector: PointerProperty(type=bpy.types.Scene, name="main scene", description="main_scene_picker", poll=is_scene_already_in_use, update=save_settings)# type: ignore
+    library_scene_selector: PointerProperty(type=bpy.types.Scene, name="library scene", description="library_scene_picker", poll=is_scene_already_in_use, update=save_settings)# type: ignore
 
     @property
     def main_scenes(self):
@@ -171,13 +166,21 @@ class BlenvyManager(PropertyGroup):
         print("LOAD SETTINGS")
         settings = load_settings(self.settings_save_path)
         if settings is not None:
-            if "mode" in settings:
+            self.settings_save_enabled = False # we disable auto_saving of our settings
+            try:
+                for setting in settings:
+                    print("setting", setting, settings[setting])
+                    setattr(self, setting, settings[setting])
+            except:pass
+            """if "mode" in settings:
                 self.mode = settings["mode"]
 
             asset_path_names = ['project_root_path', 'assets_path', 'blueprints_path', 'levels_path', 'materials_path']
             for asset_path_name in asset_path_names:
                 if asset_path_name in settings:
-                    setattr(self, asset_path_name, settings[asset_path_name])
+                    setattr(self, asset_path_name, settings[asset_path_name])"""
+
+        self.settings_save_enabled = True
  
         # now load auto_export settings
         self.auto_export.load_settings()

tools/blenvy/core/ui/scenes_list.py

@@ -28,6 +28,8 @@ class BLENVY_OT_scenes_list_actions(Operator):
     def invoke(self, context, event): 
         if self.action == 'REMOVE':
             bpy.data.scenes[self.scene_name].blenvy_scene_type = 'None'
+            context.window_manager.blenvy.main_scene_selector = None  # we use these to force update/save the list of main/library scenes 
+            context.window_manager.blenvy.library_scene_selector = None # we use these to force update/save the list of main/library scenes 
             """info = 'Item "%s" removed from list' % (target[idx].name)
             target.remove(idx)
 
@@ -49,9 +51,9 @@ class BLENVY_OT_scenes_list_actions(Operator):
                 print("adding scene", scene_to_add)
                 
                 if self.scene_type == "LEVEL":
-                    context.window_manager.blenvy.main_scene_selector = None
+                    context.window_manager.blenvy.main_scene_selector = None  # we use these to force update/save the list of main/library scenes 
                 else:
-                    context.window_manager.blenvy.library_scene_selector = None
+                    context.window_manager.blenvy.library_scene_selector = None  # we use these to force update/save the list of main/library scenes 
 
                 #setattr(source, target_index, len(target) - 1)
 

tools/blenvy/settings.py

@@ -70,7 +70,6 @@ def are_settings_identical(old, new, white_list=None):
     if old is not None and new is None:
         return False
     
-    #print("TUTU", old_items, new_items)
     old_items = sorted(old.items())
     new_items = sorted(new.items())
 
@@ -86,3 +85,33 @@ def are_settings_identical(old, new, white_list=None):
         new_items = sorted(new_items_override.items())
 
     return old_items == new_items
+
+
+# if one of the changed settings is not in the white list, it gets discarded
+def changed_settings(old, new, white_list=[]):
+    if old is None and new is None:
+        return []
+    if old is None and new is not None:
+        return new.keys()
+    if old is not None and new is None:
+        return []
+    
+    old_items = sorted(old.items())
+    new_items = sorted(new.items())
+
+    result  = []
+    old_keys = list(old.keys())
+    new_keys =list(new.keys())
+    added =  list(set(new_keys) - set(old_keys))
+    removed =  list(set(old_keys) - set(new_keys))
+
+    result += added 
+    result += removed
+    for key in new.keys():
+        if key in old:
+            if new[key] != old[key]:
+                result.append(key)
+
+    
+
+    return [key for key in list(set(result)) if key in white_list]

tools/blenvy/tests/test_bevy_integration.py

@@ -121,9 +121,9 @@ def test_export_complex(setup_data):
     user_asset.path = "audio/fake.mp3"
 
     # we have to cheat, since we cannot rely on the data injected when saving the library file
-    bpy.data.collections["External_blueprint"]["export_path"] = "blueprints/External_blueprint.glb"
-    bpy.data.collections["External_blueprint2"]["export_path"] = "blueprints/External_blueprint2.glb"
-    bpy.data.collections["External_blueprint3"]["export_path"] = "blueprints/External_blueprint3.glb"
+    #bpy.data.collections["External_blueprint"]["export_path"] = "blueprints/External_blueprint.glb"
+    #bpy.data.collections["External_blueprint2"]["export_path"] = "blueprints/External_blueprint2.glb"
+    #bpy.data.collections["External_blueprint3"]["export_path"] = "blueprints/External_blueprint3.glb"
 
 
     prepare_and_export()