Merge 80cb7d46e6 into 4a72ed68bf

* disabled manifest for 4.2 for now
* fixed missing variable for materials

TODO.md

@@ -62,7 +62,7 @@ Components:
     - [x] Hashmap Support
         - [x] fix parsing of keys's type either on Bevy side (prefered) or on the Blender side 
         - [x] fix weird issue with missing "0" property when adding new entry in empty hashmap => happens only if the values for the "setter" have never been set
-        - [ ] handle missing types in registry for keys & values
+        - [x] handle missing types in registry for keys & values
         - [x] adding a hashmap nukes every existing component ??
     - [x] Add correct upgrade handling from individual component to bevy_components
     - [x] Settings handling:
@@ -218,10 +218,15 @@ Blender side:
 
 - [ ] 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 ?)
+
+- [ ] materials fixes & upgrades
+    - [x] materials do not get exported again if the files are missing, until you change a material
+    - [x] materials do not get exported when a material is added ?
+    - [ ] material assets seem to be added to list regardless of whether material exports are enabled or not
+    - [ ] 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 ?)
 
 - [ ] add a way of visualizing per blueprint instances ?
 - [ ] display export path of blueprints (mostly external) ?
@@ -284,7 +289,7 @@ Bevy Side:
     - [x] for sub blueprint tracking: do not propagate/ deal with parent blueprints if they are not themselves Spawning (ie filter out by "BlueprintSpawning")
     - [x] cleanup internals
     - [ ] analyse what is off with blueprint level components 
-    - [ ] add the root blueprint itself to the assets either on the blender side or on the bevy side programatically
+    - [x] add the root blueprint itself to the assets either on the blender side or on the bevy side programatically
     - [ ] invalidate despawned entity & parent entities AABB 
     - [ ] add unloading/cache removal of materials
 
@@ -316,6 +321,11 @@ Bevy Side:
     - [x] replace all references to the old 2 add-ons with those to Blenvy
 - [x] rename repo to "Blenvy"
 - [x] do a deprecation release of all bevy_gltf_xxx crates to point at the new Blenvy crate
-- [ ] material assets seem to be added to list regardless of whether material exports are enabled or not
+- [ ] consider finding a way of having unique ids for all objects & collections in Blender (not trivial, if not impossible)
+    this would allow things such as 
+        - [ ] mapping uuids to blueprint paths
+        - [ ] solving problems with scene renames
+        - [ ] the ability to map external TEXT files to data in BLender (git-able, hand editable)
+- [x] make aabbs calculation non configurable, getting rid of the last setting (for now)
 
 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

crates/blenvy/Cargo.toml

@@ -14,7 +14,7 @@ license = "MIT OR Apache-2.0"
 workspace = true
 
 [dependencies]
-bevy = { version = "0.14", default-features = false, features = ["bevy_asset", "bevy_scene", "bevy_gltf", "file_watcher"] }
+bevy = { version = "0.14", default-features = false, features = ["bevy_asset", "bevy_scene", "bevy_gltf"] } #, "file_watcher"
 serde = "1.0.188"
 ron = "0.8.1"
 serde_json = "1.0.108"

crates/blenvy/src/blueprints/aabb.rs

@@ -37,8 +37,7 @@ pub fn compute_scene_aabbs(
         }
     }
     for entity in other_entities.iter() {
-        println!("already got AABB");
-        commands.entity(entity).insert(BlueprintReadyForFinalizing); // FIXME ! Yikes !!
+        commands.entity(entity).insert(BlueprintReadyForFinalizing);
     }
 }
 

crates/blenvy/src/blueprints/animation.rs

@@ -87,10 +87,14 @@ pub struct AnimationMarkerReached {
 
 /////////////////////
 
-
 /// triggers events when a given animation marker is reached for BLUEPRINT animations
 pub fn trigger_blueprint_animation_markers_events(
-    animation_data: Query<(Entity, &BlueprintAnimationPlayerLink, &BlueprintAnimationInfosLink, &BlueprintAnimations)>,
+    animation_data: Query<(
+        Entity,
+        &BlueprintAnimationPlayerLink,
+        &BlueprintAnimationInfosLink,
+        &BlueprintAnimations,
+    )>,
     // FIXME: annoying hiearchy issue yet again: the Markers & AnimationInfos are stored INSIDE the blueprint, so we need to access them differently
     animation_infos: Query<(&AnimationInfos, &AnimationMarkers)>,
     animation_players: Query<&AnimationPlayer>,
@@ -99,9 +103,7 @@ pub fn trigger_blueprint_animation_markers_events(
     animation_clips: Res<Assets<AnimationClip>>,
 ) {
     for (entity, player_link, infos_link, animations) in animation_data.iter() {
-       
         for (animation_name, node_index) in animations.named_indices.iter() {
-
             let animation_player = animation_players.get(player_link.0).unwrap();
             let (animation_infos, animation_markers) = animation_infos.get(infos_link.0).unwrap();
 
@@ -109,21 +111,24 @@ pub fn trigger_blueprint_animation_markers_events(
                 if let Some(animation) = animation_player.animation(*node_index) {
                     // animation.speed()
                     // animation.completions()
-                    if let Some(animation_clip_handle) = animations.named_animations.get(animation_name) {
+                    if let Some(animation_clip_handle) =
+                        animations.named_animations.get(animation_name)
+                    {
                         if let Some(animation_clip) = animation_clips.get(animation_clip_handle) {
                             let animation_length_seconds = animation_clip.duration();
-                            let animation_length_frames = animation_infos // FIXME: horribly inneficient
-                                .animations
-                                .iter()
-                                .find(|anim| &anim.name == animation_name)
-                                .unwrap()
-                                .frames_length;
+                            let animation_length_frames =
+                                animation_infos // FIXME: horribly inneficient
+                                    .animations
+                                    .iter()
+                                    .find(|anim| &anim.name == animation_name)
+                                    .unwrap()
+                                    .frames_length;
 
-                            
                             // TODO: we also need to take playback speed into account
                             let time_in_animation = animation.elapsed()
-                            - (animation.completions() as f32) * animation_length_seconds;
-                            let frame_seconds = (animation_length_frames / animation_length_seconds)
+                                - (animation.completions() as f32) * animation_length_seconds;
+                            let frame_seconds = (animation_length_frames
+                                / animation_length_seconds)
                                 * time_in_animation;
                             // println!("frame seconds {}", frame_seconds);
                             let frame = frame_seconds.ceil() as u32; // FIXME , bad hack
@@ -133,7 +138,10 @@ pub fn trigger_blueprint_animation_markers_events(
                             if matching_animation_marker.contains_key(&frame) {
                                 let matching_markers_per_frame =
                                     matching_animation_marker.get(&frame).unwrap();
-                                println!("FOUND A MARKER {:?} at frame {}", matching_markers_per_frame, frame);
+                                println!(
+                                    "FOUND A MARKER {:?} at frame {}",
+                                    matching_markers_per_frame, frame
+                                );
                                 // FIXME: complete hack-ish solution , otherwise this can fire multiple times in a row, depending on animation length , speed , etc
                                 let diff = frame as f32 - frame_seconds;
                                 if diff < 0.1 {
@@ -155,7 +163,6 @@ pub fn trigger_blueprint_animation_markers_events(
     }
 }
 
-
 /// triggers events when a given animation marker is reached for INSTANCE animations
 pub fn trigger_instance_animation_markers_events(
     animation_infos: Query<(
@@ -178,9 +185,10 @@ pub fn trigger_instance_animation_markers_events(
             let animation_player = animation_players.get(player_link.0).unwrap();
             if animation_player.animation_is_playing(*node_index) {
                 if let Some(animation) = animation_player.animation(*node_index) {
-                    if let Some(animation_clip_handle) = animations.named_animations.get(animation_name) {
+                    if let Some(animation_clip_handle) =
+                        animations.named_animations.get(animation_name)
+                    {
                         if let Some(animation_clip) = animation_clips.get(animation_clip_handle) {
-
                             println!("helooo")
                         }
                     }

crates/blenvy/src/blueprints/assets.rs

@@ -37,7 +37,6 @@ pub struct BlueprintAllAssets {
     pub assets: Vec<BlueprintAsset>,
 }
 
-
 ////////////////////////
 ///
 /// flag component, usually added when a blueprint is loaded

crates/blenvy/src/blueprints/hot_reload.rs

@@ -1,26 +1,23 @@
-use crate::{BlueprintAssetsLoadState, BlueprintAssetsLoaded, BlueprintInfo, BlueprintInstanceReady, BlueprintSpawning, FromBlueprint, SpawnBlueprint, SubBlueprintsSpawnTracker};
+use crate::{
+    BlueprintAssetsLoadState, BlueprintAssetsLoaded, BlueprintInfo, BlueprintInstanceReady,
+    BlueprintSpawning, FromBlueprint, SpawnBlueprint, SubBlueprintsSpawnTracker,
+};
 use bevy::asset::AssetEvent;
 use bevy::prelude::*;
 use bevy::scene::SceneInstance;
 use bevy::utils::hashbrown::HashMap;
 
-
-/// Resource mapping asset paths (ideally untyped ids, but more complex) to a list of blueprint instance entity ids 
+/// Resource mapping asset paths (ideally untyped ids, but more complex) to a list of blueprint instance entity ids
 #[derive(Debug, Clone, Resource, Default)]
-pub(crate) struct AssetToBlueprintInstancesMapper{
+pub(crate) struct AssetToBlueprintInstancesMapper {
     // pub(crate) untyped_id_to_blueprint_entity_ids: HashMap<UntypedAssetId, Vec<Entity>>
-    pub(crate) untyped_id_to_blueprint_entity_ids: HashMap<String, Vec<Entity>>
+    pub(crate) untyped_id_to_blueprint_entity_ids: HashMap<String, Vec<Entity>>,
 }
 
 pub(crate) fn react_to_asset_changes(
     mut gltf_events: EventReader<AssetEvent<Gltf>>, // FIXME: Problem: we need to react to any asset change, not just gltf files !
     // mut untyped_events: EventReader<AssetEvent<LoadedUntypedAsset>>,
-    blueprint_assets: Query<(
-        Entity,
-        Option<&Name>,
-        &BlueprintInfo,
-        Option<&Children>,
-    )>,
+    blueprint_assets: Query<(Entity, Option<&Name>, &BlueprintInfo, Option<&Children>)>,
     blueprint_children_entities: Query<&FromBlueprint>, //=> can only be used if the entites are tagged
     assets_to_blueprint_instances: Res<AssetToBlueprintInstancesMapper>,
     all_parents: Query<&Parent>,
@@ -28,7 +25,6 @@ pub(crate) fn react_to_asset_changes(
 
     asset_server: Res<AssetServer>,
     mut commands: Commands,
-
 ) {
     let mut respawn_candidates: Vec<&Entity> = vec![];
 
@@ -44,15 +40,19 @@ pub(crate) fn react_to_asset_changes(
                     // let bla = untyped.unwrap().id();
                     // asset_server.get
                     // in order to avoid respawn both a parent & a child , which would crash Bevy, we do things in two steps
-                    if let Some(entities) = assets_to_blueprint_instances.untyped_id_to_blueprint_entity_ids.get(&asset_path.to_string()) {
+                    if let Some(entities) = assets_to_blueprint_instances
+                        .untyped_id_to_blueprint_entity_ids
+                        .get(&asset_path.to_string())
+                    {
                         for entity in entities.iter() {
-                            println!("matching blueprint instance {}", entity);
-                            // disregard entities that are already (re) spawning 
-                            if !respawn_candidates.contains(&entity) && blueprint_assets.get(*entity).is_ok() && spawning_blueprints.get(*entity).is_err()
+                            // println!("matching blueprint instance {}", entity);
+                            // disregard entities that are already (re) spawning
+                            if !respawn_candidates.contains(&entity)
+                                && blueprint_assets.get(*entity).is_ok()
+                                && spawning_blueprints.get(*entity).is_err()
                             {
                                 respawn_candidates.push(entity);
                             }
-                           
                         }
                     }
                 }
@@ -65,27 +65,29 @@ pub(crate) fn react_to_asset_changes(
     // TODO: improve this, very inneficient
     let mut retained_candidates: Vec<Entity> = vec![];
     'outer: for entity in respawn_candidates.iter() {
-        for parent in all_parents.iter_ancestors(**entity){
+        for parent in all_parents.iter_ancestors(**entity) {
             for ent in respawn_candidates.iter() {
                 if **ent == parent {
-                    if ! retained_candidates.contains(&parent) {
+                    if !retained_candidates.contains(&parent) {
                         retained_candidates.push(parent);
                     }
                     continue 'outer;
                 }
             }
         }
-        if ! retained_candidates.contains(entity) {
+        if !retained_candidates.contains(entity) {
             retained_candidates.push(**entity);
         }
     }
     // println!("respawn candidates {:?}", respawn_candidates);
     for retained in retained_candidates.iter() {
-        println!("retained {}", retained);
+        // println!("retained {}", retained);
+
+        if let Ok((entity, entity_name, _blueprint_info, children)) =
+            blueprint_assets.get(*retained)
+        {
+            info!("Change detected !!, now respawn {:?}", entity_name);
 
-        if let Ok((entity, entity_name, _blueprint_info, children)) = blueprint_assets.get(*retained) {
-            println!("HOLY MOLY IT DETECTS !!, now respawn {:?}", entity_name);
-            
             // TODO: only remove those that are "in blueprint"
             if children.is_some() {
                 for child in children.unwrap().iter() {
@@ -100,7 +102,7 @@ pub(crate) fn react_to_asset_changes(
                 .remove::<BlueprintAssetsLoadState>()
                 .remove::<SubBlueprintsSpawnTracker>()
                 .insert(SpawnBlueprint);
-        } 
+        }
     }
 
     // println!("done with asset updates");

crates/blenvy/src/blueprints/materials.rs

@@ -53,7 +53,12 @@ pub(crate) fn inject_materials(
             material_found = Some(material);
         } else {
             let model_handle: Handle<Gltf> = asset_server.load(material_info.path.clone()); // FIXME: kinda weird now
-            let mat_gltf = assets_gltf.get(model_handle.id()).unwrap_or_else(|| panic!("materials file {} should have been preloaded", material_info.path));
+            let mat_gltf = assets_gltf.get(model_handle.id()).unwrap_or_else(|| {
+                panic!(
+                    "materials file {} should have been preloaded",
+                    material_info.path
+                )
+            });
             if mat_gltf
                 .named_materials
                 .contains_key(&material_info.name as &str)

crates/blenvy/src/blueprints/mod.rs

@@ -50,19 +50,14 @@ impl Default for BluePrintBundle {
 #[derive(Debug, Clone)]
 /// Plugin for gltf blueprints
 pub struct BlueprintsPlugin {
-    /// Automatically generate aabbs for the blueprints root objects
-    pub aabbs: bool,
 }
 
 impl Default for BlueprintsPlugin {
     fn default() -> Self {
-        Self { aabbs: false }
+        Self { }
     }
 }
 
-fn aabbs_enabled(blenvy_config: Res<BlenvyConfig>) -> bool {
-    blenvy_config.aabbs
-}
 
 fn hot_reload(watching_for_changes: Res<WatchingForChanges>) -> bool {
     // println!("hot reload ? {}", watching_for_changes.0);
@@ -131,7 +126,7 @@ impl Plugin for BlueprintsPlugin {
                     blueprints_cleanup_spawned_scene,
                     // beyond this point : post processing to finalize blueprint instances
                     inject_materials,
-                    compute_scene_aabbs, // .run_if(aabbs_enabled),
+                    compute_scene_aabbs,
                     blueprints_finalize_instances,
                 )
                     .chain()

crates/blenvy/src/blueprints/spawn_from_blueprints.rs

@@ -4,7 +4,10 @@ use bevy::{gltf::Gltf, prelude::*, scene::SceneInstance, utils::hashbrown::HashM
 use serde_json::Value;
 
 use crate::{
-    AnimationInfos, AssetLoadTracker, AssetToBlueprintInstancesMapper, BlenvyConfig, BlueprintAnimationInfosLink, BlueprintAnimationPlayerLink, BlueprintAnimations, BlueprintAssets, BlueprintAssetsLoadState, BlueprintAssetsLoaded, BlueprintAssetsNotLoaded, InstanceAnimationInfosLink, InstanceAnimationPlayerLink, InstanceAnimations, WatchingForChanges
+    AnimationInfos, AssetLoadTracker, AssetToBlueprintInstancesMapper, BlueprintAnimationInfosLink,
+    BlueprintAnimationPlayerLink, BlueprintAnimations, BlueprintAssets, BlueprintAssetsLoadState,
+    BlueprintAssetsLoaded, BlueprintAssetsNotLoaded, InstanceAnimationInfosLink,
+    InstanceAnimationPlayerLink, InstanceAnimations, WatchingForChanges,
 };
 
 /// this is a flag component for our levels/game world
@@ -38,7 +41,7 @@ pub struct SpawnBlueprint;
 
 #[derive(Component, Reflect, Default, Debug)]
 #[reflect(Component)]
-/// flag component marking any spawned child of blueprints 
+/// flag component marking any spawned child of blueprints
 pub struct FromBlueprint;
 
 // TODO: move to save_load
@@ -89,7 +92,6 @@ pub enum BlueprintEvent {
     },
 }
 
-
 #[derive(Component, Reflect, Debug, Default)]
 #[reflect(Component)]
 /// component gets added when a blueprint starts spawning, removed when spawning is completely done
@@ -97,7 +99,6 @@ pub struct BlueprintSpawning;
 
 use gltf::Gltf as RawGltf;
 
-
 /*
 Overview of the Blueprint Spawning process
     - Blueprint Load Assets
@@ -115,10 +116,7 @@ Overview of the Blueprint Spawning process
 */
 
 pub(crate) fn blueprints_prepare_spawn(
-    blueprint_instances_to_spawn: Query<
-        (Entity, &BlueprintInfo),
-        Added<SpawnBlueprint>,
-    >,
+    blueprint_instances_to_spawn: Query<(Entity, &BlueprintInfo), Added<SpawnBlueprint>>,
     mut commands: Commands,
     asset_server: Res<AssetServer>,
     // for hot reload
@@ -153,9 +151,9 @@ pub(crate) fn blueprints_prepare_spawn(
         /* prefetch attempt */
         let gltf = RawGltf::open(format!("assets/{}", blueprint_info.path)).unwrap();
         for scene in gltf.scenes() {
-            if let Some(scene_extras) = scene.extras().clone()
-            {
-                let lookup: HashMap<String, Value> = serde_json::from_str(scene_extras.get()).unwrap();
+            if let Some(scene_extras) = scene.extras().clone() {
+                let lookup: HashMap<String, Value> =
+                    serde_json::from_str(scene_extras.get()).unwrap();
                 if lookup.contains_key("BlueprintAssets") {
                     let assets_raw = &lookup["BlueprintAssets"];
                     //println!("ASSETS RAW {}", assets_raw);
@@ -183,21 +181,59 @@ pub(crate) fn blueprints_prepare_spawn(
 
                         // Only do this if hot reload is enabled
                         if watching_for_changes.0 {
-                            if !assets_to_blueprint_instances.untyped_id_to_blueprint_entity_ids.contains_key(&path_id) {
-                                assets_to_blueprint_instances.untyped_id_to_blueprint_entity_ids.insert(path_id.clone(), vec![]);
+                            if !assets_to_blueprint_instances
+                                .untyped_id_to_blueprint_entity_ids
+                                .contains_key(&path_id)
+                            {
+                                assets_to_blueprint_instances
+                                    .untyped_id_to_blueprint_entity_ids
+                                    .insert(path_id.clone(), vec![]);
                             }
+
                             // only insert if not already present in mapping
-                            if !assets_to_blueprint_instances.untyped_id_to_blueprint_entity_ids[&path_id].contains(&entity) {
+                            if !assets_to_blueprint_instances.untyped_id_to_blueprint_entity_ids
+                                [&path_id]
+                                .contains(&entity)
+                            {
                                 // println!("adding mapping between {} and entity {:?}", path_id, all_names.get(entity));
-                                assets_to_blueprint_instances.untyped_id_to_blueprint_entity_ids.get_mut(&path_id).unwrap().push(entity);
+                                assets_to_blueprint_instances
+                                    .untyped_id_to_blueprint_entity_ids
+                                    .get_mut(&path_id)
+                                    .unwrap()
+                                    .push(entity);
                             }
                         }
-                        
                     }
                 }
             }
         }
 
+        // Only do this if hot reload is enabled
+        // TODO: should this be added to the list of "all assets" on the blender side instead
+        if watching_for_changes.0 {
+            // also add the root blueprint info to the list of hot reload items
+            if !assets_to_blueprint_instances
+                .untyped_id_to_blueprint_entity_ids
+                .contains_key(&blueprint_info.path)
+            {
+                assets_to_blueprint_instances
+                    .untyped_id_to_blueprint_entity_ids
+                    .insert(blueprint_info.path.clone(), vec![]);
+            }
+            // only insert if not already present in mapping
+            if !assets_to_blueprint_instances.untyped_id_to_blueprint_entity_ids
+                [&blueprint_info.path]
+                .contains(&entity)
+            {
+                // println!("adding mapping between {} and entity {:?}", path_id, all_names.get(entity));
+                assets_to_blueprint_instances
+                    .untyped_id_to_blueprint_entity_ids
+                    .get_mut(&blueprint_info.path)
+                    .unwrap()
+                    .push(entity);
+            }
+        }
+
         // now insert load tracker
         // if there are assets to load
         if !asset_infos.is_empty() {
@@ -243,7 +279,9 @@ pub(crate) fn blueprints_check_assets_loading(
             let loaded = asset_server.is_loaded_with_dependencies(asset_id);
 
             let mut failed = false;
-            if let bevy::asset::LoadState::Failed(_) = asset_server.load_state(asset_id) { failed = true }
+            if let bevy::asset::LoadState::Failed(_) = asset_server.load_state(asset_id) {
+                failed = true
+            }
             tracker.loaded = loaded || failed;
             if loaded || failed {
                 loaded_amount += 1;
@@ -267,12 +305,10 @@ pub(crate) fn blueprints_check_assets_loading(
             commands
                 .entity(entity)
                 .insert(BlueprintAssetsLoaded)
-                .remove::<BlueprintAssetsNotLoaded>()
-                ;
+                .remove::<BlueprintAssetsNotLoaded>();
 
             if !watching_for_changes.0 {
-                commands.entity(entity)
-                    .remove::<BlueprintAssetsLoadState>(); //we REMOVE this component when in hot reload is OFF, as we 
+                commands.entity(entity).remove::<BlueprintAssetsLoadState>(); //we REMOVE this component when in hot reload is OFF, as we
             }
         }
     }
@@ -556,12 +592,11 @@ pub(crate) fn blueprints_cleanup_spawned_scene(
 
     all_names: Query<&Name>,
 ) {
-    for (original, children, original_children, name, animations) in
-        blueprint_scenes.iter()
-    {
+    for (original, children, original_children, name, animations) in blueprint_scenes.iter() {
         info!("Cleaning up spawned scene {:?}", name);
 
-        if children.len() == 0 { // TODO: investigate, Honestly not sure if this issue from Bevy 0.12 is still present at all anymore
+        if children.len() == 0 {
+            // TODO: investigate, Honestly not sure if this issue from Bevy 0.12 is still present at all anymore
             warn!("timing issue ! no children found, please restart your bevy app (bug being investigated)");
             continue;
         }
@@ -581,7 +616,6 @@ pub(crate) fn blueprints_cleanup_spawned_scene(
         for child in all_children.iter_descendants(blueprint_root_entity) {
             commands.entity(child).insert(FromBlueprint); // we do this here in order to avoid doing it to normal children
         }
-        
 
         // copy components into from blueprint instance's blueprint_root_entity to original entity
         commands.add(CopyComponents {
@@ -632,14 +666,10 @@ pub(crate) fn blueprints_cleanup_spawned_scene(
                             all_names.get(child),
                             all_names.get(original)
                         );
-                        commands
-                        .entity(original)
-                        .insert(
+                        commands.entity(original).insert(
                             //BlueprintAnimationPlayerLink(bla),
-                            BlueprintAnimationInfosLink(child)
-                        )
-                        ;
-
+                            BlueprintAnimationInfosLink(child),
+                        );
                     } else {
                         for parent in all_parents.iter_ancestors(child) {
                             if animation_players.get(parent).is_ok() {
@@ -663,8 +693,9 @@ pub(crate) fn blueprints_cleanup_spawned_scene(
                                 ));
                             }
                             if with_animation_infos.get(parent).is_ok() {
-                                commands.entity(child).insert(InstanceAnimationInfosLink(parent));
-
+                                commands
+                                    .entity(child)
+                                    .insert(InstanceAnimationInfosLink(parent));
                             }
                         }
                     }

crates/blenvy/src/components/ronstring_to_reflect_component.rs

@@ -65,7 +65,6 @@ fn components_string_to_components(
             ron::ser::to_string_pretty(&serializer, ron::ser::PrettyConfig::default()).unwrap();
         println!("serialized Component {}", serialized);
         */
-
         debug!("component data ron string {}", ron_string);
         if cfg!(windows) {
             ron_string = ron_string.replace("\\", "/");

crates/blenvy/src/lib.rs

@@ -13,13 +13,13 @@ pub use blueprints::*;
 #[derive(Clone, Resource)]
 pub struct BlenvyConfig {
     // registry
+    pub(crate) export_registry: bool,
     pub(crate) registry_save_path: PathBuf,
     pub(crate) registry_component_filter: SceneFilter,
     #[allow(dead_code)]
     pub(crate) registry_resource_filter: SceneFilter,
 
     // blueprints
-    pub(crate) aabbs: bool,
     pub(crate) aabb_cache: HashMap<String, Aabb>, // cache for aabbs
     pub(crate) materials_cache: HashMap<String, Handle<StandardMaterial>>, // cache for materials
 
@@ -31,14 +31,12 @@ pub struct BlenvyConfig {
 #[derive(Debug, Clone)]
 /// Plugin for gltf blueprints
 pub struct BlenvyPlugin {
+    pub export_registry: bool,
     pub registry_save_path: PathBuf,
 
     pub registry_component_filter: SceneFilter,
     pub registry_resource_filter: SceneFilter,
 
-    /// Automatically generate aabbs for the blueprints root objects
-    pub aabbs: bool,
-
     // for save & load
     pub save_component_filter: SceneFilter,
     pub save_resource_filter: SceneFilter,
@@ -47,10 +45,10 @@ pub struct BlenvyPlugin {
 impl Default for BlenvyPlugin {
     fn default() -> Self {
         Self {
+            export_registry: true,
             registry_save_path: PathBuf::from("registry.json"), // relative to assets folder
             registry_component_filter: SceneFilter::default(),
             registry_resource_filter: SceneFilter::default(),
-            aabbs: false,
 
             save_component_filter: SceneFilter::default(),
             save_resource_filter: SceneFilter::default(),
@@ -66,17 +64,17 @@ impl Plugin for BlenvyPlugin {
             BlueprintsPlugin::default(),
         ))
         .insert_resource(BlenvyConfig {
+            export_registry: self.export_registry,
             registry_save_path: self.registry_save_path.clone(),
             registry_component_filter: self.registry_component_filter.clone(),
             registry_resource_filter: self.registry_resource_filter.clone(),
 
-            aabbs: self.aabbs,
             aabb_cache: HashMap::new(),
 
             materials_cache: HashMap::new(),
 
             save_component_filter: self.save_component_filter.clone(),
-            save_resource_filter: self.save_resource_filter.clone()
+            save_resource_filter: self.save_resource_filter.clone(),
         });
     }
 }

crates/blenvy/src/registry/mod.rs

@@ -6,10 +6,12 @@ pub use export_types::*;
 use bevy::{
     app::Startup,
     asset::AssetPlugin,
-    prelude::{App, Plugin, Resource},
+    prelude::{App, IntoSystemConfigs, Plugin, Res, Resource},
     scene::SceneFilter,
 };
 
+use crate::BlenvyConfig;
+
 pub struct ExportRegistryPlugin {
     pub component_filter: SceneFilter,
     pub resource_filter: SceneFilter,
@@ -26,9 +28,14 @@ impl Default for ExportRegistryPlugin {
     }
 }
 
+fn export_registry(blenvy_config: Res<BlenvyConfig>) -> bool {
+    // TODO: add detection of Release builds, wasm, and android in order to avoid exporting registry in those cases
+    blenvy_config.export_registry
+}
+
 impl Plugin for ExportRegistryPlugin {
     fn build(&self, app: &mut App) {
-        app.register_asset_root().add_systems(Startup, export_types);
+        app.register_asset_root().add_systems(Startup, export_types.run_if(export_registry));
     }
 }
 

examples/animation/src/main.rs

@@ -1,7 +1,11 @@
 use std::time::Duration;
 
 use bevy::prelude::*;
-use blenvy::{AddToGameWorld, BlenvyPlugin, BluePrintBundle, BlueprintAnimationPlayerLink, BlueprintAnimations, BlueprintInfo, DynamicBlueprintInstance, GameWorldTag, HideUntilReady, SpawnBlueprint};
+use blenvy::{
+    AddToGameWorld, BlenvyPlugin, BluePrintBundle, BlueprintAnimationPlayerLink,
+    BlueprintAnimations, BlueprintInfo, DynamicBlueprintInstance, GameWorldTag, HideUntilReady,
+    SpawnBlueprint,
+};
 use rand::Rng;
 
 mod component_examples;
@@ -22,31 +26,24 @@ pub struct Fox;
 /// Demo marker component
 pub struct Robot;
 
-
 fn main() {
     App::new()
         .add_plugins((
             DefaultPlugins.set(AssetPlugin::default()),
             // our custom plugins
             ComponentsExamplesPlugin, // Showcases different type of components /structs
-            BlenvyPlugin::default()
+            BlenvyPlugin::default(),
         ))
         .register_type::<Player>()
         .register_type::<Fox>()
         .register_type::<Robot>()
-
         .add_systems(Startup, setup_game)
-        .add_systems(Update, 
-            (animation_control,)
-        )
+        .add_systems(Update, (animation_control,))
         .run();
 }
 
 // this is how you setup & spawn a level from a blueprint
-fn setup_game(
-    mut commands: Commands,
-) {
-
+fn setup_game(mut commands: Commands) {
     // here we actually spawn our game world/level
     commands.spawn((
         BlueprintInfo::from_path("levels/World.glb"), // all we need is a Blueprint info...
@@ -56,7 +53,6 @@ fn setup_game(
     ));
 }
 
-
 //////////////////////////////////
 
 pub fn animation_control(
@@ -94,7 +90,7 @@ pub fn animation_control(
     if keycode.just_pressed(KeyCode::KeyW) {
         for (link, animations) in animated_foxes.iter() {
             let (mut animation_player, mut animation_transitions) =
-            animation_players.get_mut(link.0).unwrap();
+                animation_players.get_mut(link.0).unwrap();
 
             let anim_name = "Walk";
             animation_transitions
@@ -114,7 +110,7 @@ pub fn animation_control(
     if keycode.just_pressed(KeyCode::KeyX) {
         for (link, animations) in animated_foxes.iter() {
             let (mut animation_player, mut animation_transitions) =
-            animation_players.get_mut(link.0).unwrap();
+                animation_players.get_mut(link.0).unwrap();
 
             let anim_name = "Run";
             animation_transitions
@@ -134,7 +130,7 @@ pub fn animation_control(
     if keycode.just_pressed(KeyCode::KeyC) {
         for (link, animations) in animated_foxes.iter() {
             let (mut animation_player, mut animation_transitions) =
-            animation_players.get_mut(link.0).unwrap();
+                animation_players.get_mut(link.0).unwrap();
 
             let anim_name = "Survey";
             animation_transitions

examples/blueprints/src/main.rs

@@ -1,5 +1,8 @@
 use bevy::prelude::*;
-use blenvy::{AddToGameWorld, BlenvyPlugin, BluePrintBundle, BlueprintInfo, DynamicBlueprintInstance, GameWorldTag, HideUntilReady, SpawnBlueprint};
+use blenvy::{
+    AddToGameWorld, BlenvyPlugin, BluePrintBundle, BlueprintInfo, DynamicBlueprintInstance,
+    GameWorldTag, HideUntilReady, SpawnBlueprint,
+};
 use rand::Rng;
 
 mod component_examples;
@@ -11,20 +14,15 @@ fn main() {
             DefaultPlugins.set(AssetPlugin::default()),
             // our custom plugins
             ComponentsExamplesPlugin, // Showcases different type of components /structs
-            BlenvyPlugin::default()
+            BlenvyPlugin::default(),
         ))
-
         .add_systems(Startup, setup_game)
         .add_systems(Update, spawn_blueprint_instance)
-
         .run();
 }
 
 // this is how you setup & spawn a level from a blueprint
-fn setup_game(
-    mut commands: Commands,
-) {
-
+fn setup_game(mut commands: Commands) {
     // here we spawn our game world/level, which is also a blueprint !
     commands.spawn((
         BlueprintInfo::from_path("levels/World.glb"), // all we need is a Blueprint info...
@@ -34,7 +32,6 @@ fn setup_game(
     ));
 }
 
-
 // you can also spawn blueprint instances at runtime
 pub fn spawn_blueprint_instance(
     keycode: Res<ButtonInput<KeyCode>>,
@@ -67,10 +64,8 @@ pub fn spawn_blueprint_instance(
                 HideUntilReady,
                 AddToGameWorld,
                 TransformBundle::from_transform(Transform::from_xyz(x, 2.0, y)),
-              
             ))
             .id();
         //         commands.entity(world).add_child(new_entity);
-
     }
-}
+}

examples/components/src/main.rs

@@ -10,18 +10,13 @@ fn main() {
             DefaultPlugins.set(AssetPlugin::default()),
             // our custom plugins
             ComponentsExamplesPlugin, // Showcases different type of components /structs
-            BlenvyPlugin::default()
+            BlenvyPlugin::default(),
         ))
-
         .add_systems(Startup, setup_game)
         .run();
 }
 
-
-fn setup_game(
-    mut commands: Commands,
-) {
-
+fn setup_game(mut commands: Commands) {
     // here we actually spawn our game world/level
     commands.spawn((
         BlueprintInfo::from_path("levels/World.glb"), // all we need is a Blueprint info...

examples/demo/src/game/in_game.rs

@@ -1,6 +1,6 @@
 use bevy::prelude::*;
-use blenvy::{BluePrintBundle, BlueprintName, GameWorldTag};
 use bevy_gltf_worlflow_examples_common_rapier::{assets::GameAssets, GameState, InAppRunning};
+use blenvy::{BluePrintBundle, BlueprintName, GameWorldTag};
 
 use bevy_rapier3d::prelude::Velocity;
 use rand::Rng;

examples/demo/src/game/level_transitions.rs

@@ -1,9 +1,9 @@
 use bevy::{gltf::Gltf, prelude::*};
-use blenvy::GameWorldTag;
 use bevy_gltf_worlflow_examples_common_rapier::{
     assets::GameAssets, GameState, InAppRunning, Player,
 };
 use bevy_rapier3d::prelude::*;
+use blenvy::GameWorldTag;
 
 #[derive(Component, Reflect, Default, Debug)]
 #[reflect(Component)]

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

@@ -12,7 +12,9 @@ from .export_gltf import get_standard_exporter_settings
 
 from ..levels.export_levels import export_level_scene
 from ..blueprints.export_blueprints import export_blueprints
-from .export_materials import cleanup_materials, export_materials
+
+from ..materials.get_materials_to_export import get_materials_to_export
+from ..materials.export_materials import cleanup_materials, export_materials
 from ..levels.bevy_scene_components import remove_scene_components, upsert_scene_components
 
 
@@ -70,10 +72,8 @@ def auto_export(changes_per_scene, changes_per_collection, changes_per_material,
 
             # since materials export adds components we need to call this before blueprints are exported
             # export materials & inject materials components into relevant objects
-            # FIXME: improve change detection, perhaps even add "material changes"
-            if export_materials_library and (changed_export_parameters or len(changes_per_material.keys()) > 0 ):
-                export_materials(blueprints_data.blueprint_names, settings.library_scenes, settings)
-
+            materials_to_export = get_materials_to_export(changes_per_material, changed_export_parameters, blueprints_data, settings)    
+            
             # update the list of tracked exports
             exports_total = len(blueprints_to_export) + len(level_scenes_to_export) + (1 if export_materials_library else 0)
             bpy.context.window_manager.auto_export_tracker.exports_total = exports_total
@@ -90,9 +90,11 @@ def auto_export(changes_per_scene, changes_per_collection, changes_per_material,
             print("BLUEPRINTS:          external:", external_blueprints)
             print("BLUEPRINTS:         per_scene:", blueprints_per_scene)
             print("-------------------------------")
-            print("BLUEPRINTS:          to export:", [blueprint.name for blueprint in blueprints_to_export])
+            print("BLUEPRINTS:        to export:", [blueprint.name for blueprint in blueprints_to_export])
             print("-------------------------------")
-            print("MAIN SCENES:         to export:", level_scenes_to_export)
+            print("LEVELS:            to export:", level_scenes_to_export)
+            print("-------------------------------")
+            print("MATERIALS:         to export:", materials_to_export)
             print("-------------------------------")
             # backup current active scene
             old_current_scene = bpy.context.scene
@@ -112,6 +114,10 @@ def auto_export(changes_per_scene, changes_per_collection, changes_per_material,
                 print("export LIBRARY")
                 export_blueprints(blueprints_to_export, settings, blueprints_data)
 
+            # then deal with materials
+            if export_materials_library:
+                export_materials(materials_to_export, settings, blueprints_data)#blueprints_data.blueprint_names, settings.library_scenes, settings)
+
             # reset current scene from backup
             bpy.context.window.scene = old_current_scene
 

tools/blenvy/add_ons/auto_export/materials/export_materials.py

@@ -5,8 +5,8 @@ from pathlib import Path
 from blenvy.core.helpers_collections import (traverse_tree)
 from blenvy.core.object_makers import make_cube
 from blenvy.materials.materials_helpers import add_material_info_to_objects, get_all_materials
-from .generate_temporary_scene_and_export import generate_temporary_scene_and_export
-from .export_gltf import (generate_gltf_export_settings)
+from ..common.generate_temporary_scene_and_export import generate_temporary_scene_and_export
+from ..common.export_gltf import (generate_gltf_export_settings)
 
 # material library logic
 # To avoid redundant materials (can be very costly, mostly when using high res textures)
@@ -65,35 +65,38 @@ def clear_materials_scene(temp_scene):
 
 # exports the materials used inside the current project:
 # the name of the output path is <materials_folder>/<name_of_your_blend_file>_materials_library.gltf/glb
-def export_materials(collections, library_scenes, settings):
-    gltf_export_settings = generate_gltf_export_settings(settings)
-    materials_path_full = getattr(settings,"materials_path_full")
+def export_materials(materials_to_export, settings, blueprints_data):
+    if len(materials_to_export) > 0:
+        gltf_export_settings = generate_gltf_export_settings(settings)
+        materials_path_full = getattr(settings,"materials_path_full")
 
-    (used_material_names, materials_per_object) = get_all_materials(collections, library_scenes)
-    add_material_info_to_objects(materials_per_object, settings)
+        (used_material_names, materials_per_object) = get_all_materials(blueprints_data.blueprint_names, settings.library_scenes)
+        add_material_info_to_objects(materials_per_object, settings)
 
-    gltf_export_settings = { **gltf_export_settings, 
-                    'use_active_scene': True, 
-                    'use_active_collection':True, 
-                    'use_active_collection_with_nested':True,  
-                    'use_visible': False,
-                    'use_renderable': False,
-                    'export_apply':True
-                    }
+        gltf_export_settings = { **gltf_export_settings, 
+                        'use_active_scene': True, 
+                        'use_active_collection':True, 
+                        'use_active_collection_with_nested':True,  
+                        'use_visible': False,
+                        'use_renderable': False,
+                        'export_apply':True
+                        }
 
-    current_project_name = Path(bpy.context.blend_data.filepath).stem
-    gltf_output_path = os.path.join(materials_path_full, current_project_name + "_materials")
+        current_project_name = Path(bpy.context.blend_data.filepath).stem
+        gltf_output_path = os.path.join(materials_path_full, current_project_name + "_materials")
 
-    print("       exporting Materials to", gltf_output_path, ".gltf/glb")
+        print("       exporting Materials to", gltf_output_path, ".gltf/glb")
 
-    generate_temporary_scene_and_export(
-        settings=settings, 
-        gltf_export_settings=gltf_export_settings,
-        temp_scene_name="__materials_scene",
-        gltf_output_path=gltf_output_path,
-        tempScene_filler= lambda temp_collection: generate_materials_scene_content(temp_collection, used_material_names),
-        tempScene_cleaner= lambda temp_scene, params: clear_materials_scene(temp_scene=temp_scene)
-    )
+        generate_temporary_scene_and_export(
+            settings=settings, 
+            gltf_export_settings=gltf_export_settings,
+            temp_scene_name="__materials_scene",
+            gltf_output_path=gltf_output_path,
+            tempScene_filler= lambda temp_collection: generate_materials_scene_content(temp_collection, used_material_names),
+            tempScene_cleaner= lambda temp_scene, params: clear_materials_scene(temp_scene=temp_scene)
+        )
+    
+  
 
 
 def cleanup_materials(collections, library_scenes):

tools/blenvy/add_ons/auto_export/materials/get_materials_to_export.py

@@ -0,0 +1,31 @@
+
+import bpy
+from blenvy.materials.materials_helpers import find_materials_not_on_disk
+
+def get_materials_to_export(changes_per_material, changed_export_parameters, blueprints_data, settings):
+    export_gltf_extension = getattr(settings, "export_gltf_extension", ".glb")
+    blueprints_path_full = getattr(settings,"blueprints_path_full", "")
+    materials_path_full = getattr(settings,"materials_path_full", "")
+
+    change_detection = getattr(settings.auto_export, "change_detection")
+    collection_instances_combine_mode = getattr(settings.auto_export, "collection_instances_combine_mode")
+
+    all_materials = bpy.data.materials
+    local_materials = [material for material in all_materials if material.library is None]
+    #and (changed_export_parameters or len(changes_per_material.keys()) > 0 )
+
+    materials_to_export = []
+    if change_detection and not changed_export_parameters:
+        changed_materials = []
+
+        # first check if all materials have already been exported before (if this is the first time the exporter is run
+        # in your current Blender session for example)
+        materials_not_on_disk = find_materials_not_on_disk(local_materials, materials_path_full, export_gltf_extension)
+
+        # also deal with blueprints that are always marked as "always_export"   
+        #materials_always_export = [material for material in internal_materials if is_material_always_export(material)]
+        materials_always_export = []
+        materials_to_export =  list(set(changed_materials + materials_not_on_disk + materials_always_export))
+
+
+    return materials_to_export

tools/blenvy/add_ons/auto_export/utils.py

@@ -1,5 +1,5 @@
+import posixpath
 import bpy
-import os
 from pathlib import Path
 from blenvy.assets.assets_scan import get_blueprint_asset_tree, get_level_scene_assets_tree2
 
@@ -10,9 +10,6 @@ def assets_to_fake_ron(list_like):
 
     return f"(assets: {result})".replace("'", '')
 
-    return f"({result})".replace("'", '')
-
-
 # TODO : move to assets
 def upsert_scene_assets(scene, blueprints_data, settings):
     """print("level scene", scene)
@@ -33,7 +30,7 @@ def upsert_scene_assets(scene, blueprints_data, settings):
     blueprints_path =  getattr(settings, "blueprints_path")
     for blueprint in blueprints_in_scene:
         if blueprint.local:
-            blueprint_exported_path = os.path.join(blueprints_path, f"{blueprint.name}{export_gltf_extension}")
+            blueprint_exported_path = posixpath.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
@@ -56,7 +53,7 @@ def upsert_scene_assets(scene, blueprints_data, settings):
     materials_path =  getattr(settings, "materials_path")
     current_project_name = Path(bpy.context.blend_data.filepath).stem
     materials_library_name = f"{current_project_name}_materials"
-    materials_exported_path = os.path.join(materials_path, f"{materials_library_name}{export_gltf_extension}")
+    materials_exported_path = posixpath.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
     print("material_assets", material_assets, "extension", export_gltf_extension)
 

tools/blenvy/assets/assets_scan.py

@@ -1,5 +1,6 @@
 import os
 import json
+import posixpath
 import bpy
 
 from .asset_helpers import does_asset_exist, get_user_assets, get_user_assets_as_list
@@ -22,7 +23,7 @@ def scan_assets(scene, blueprints_data, settings):
                 #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}")
+                    blueprint_exported_path = posixpath.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
@@ -71,7 +72,7 @@ def get_blueprint_assets_tree(blueprint, blueprints_data, parent, settings):
         if child_blueprint:
             blueprint_exported_path = None
             if blueprint.local:
-                blueprint_exported_path = os.path.join(blueprints_path, f"{child_blueprint.name}{export_gltf_extension}")
+                blueprint_exported_path = posixpath.join(blueprints_path, f"{child_blueprint.name}{export_gltf_extension}")
             else:
                 # get the injected path of the external blueprints
                 blueprint_exported_path = child_blueprint.collection['export_path'] if 'export_path' in child_blueprint.collection else None
@@ -101,7 +102,7 @@ def get_level_scene_assets_tree(level_scene, blueprints_data, settings):
             if blueprint is not None: 
                 blueprint_exported_path = None
                 if blueprint.local:
-                    blueprint_exported_path = os.path.join(blueprints_path, f"{blueprint.name}{export_gltf_extension}")
+                    blueprint_exported_path = posixpath.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
@@ -134,7 +135,7 @@ def get_level_scene_assets_tree2(level_scene, blueprints_data, settings):
             if blueprint is not None: 
                 blueprint_exported_path = None
                 if blueprint.local:
-                    blueprint_exported_path = os.path.join(blueprints_path, f"{blueprint.name}{export_gltf_extension}")
+                    blueprint_exported_path = posixpath.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
@@ -156,7 +157,7 @@ def get_blueprint_asset_tree(blueprint, blueprints_data, settings):
         if sub_blueprint is not None: 
             sub_blueprint_exported_path = None
             if sub_blueprint.local:
-                sub_blueprint_exported_path = os.path.join(blueprints_path, f"{sub_blueprint.name}{export_gltf_extension}")
+                sub_blueprint_exported_path = posixpath.join(blueprints_path, f"{sub_blueprint.name}{export_gltf_extension}")
             else:
                 # get the injected path of the external blueprints
                 sub_blueprint_exported_path = sub_blueprint.collection['export_path'] if 'export_path' in sub_blueprint.collection else None

tools/blenvy/blueprints/blueprint_helpers.py

@@ -3,6 +3,7 @@ import os
 import json
 import bpy
 from pathlib import Path
+import posixpath
 
 from ..core.scene_helpers import add_scene_property
 
@@ -28,10 +29,10 @@ def inject_export_path_into_internal_blueprints(internal_blueprints, blueprints_
     materials_path =  getattr(settings, "materials_path")
     current_project_name = Path(bpy.context.blend_data.filepath).stem
     materials_library_name = f"{current_project_name}_materials"
-    materials_exported_path = os.path.join(materials_path, f"{materials_library_name}{export_gltf_extension}")
+    materials_exported_path = posixpath.join(materials_path, f"{materials_library_name}{export_gltf_extension}")
 
     for blueprint in internal_blueprints:
-        blueprint_exported_path = os.path.join(blueprints_path, f"{blueprint.name}{gltf_extension}")
+        blueprint_exported_path = posixpath.join(blueprints_path, f"{blueprint.name}{gltf_extension}")
         # print("injecting blueprint path", blueprint_exported_path, "for", blueprint.name)
         blueprint.collection["export_path"] = blueprint_exported_path
         if export_materials_library:
@@ -58,7 +59,7 @@ def inject_blueprints_list_into_level_scene(scene, blueprints_data, settings):
                 #print("BLUEPRINT", blueprint)
                 blueprint_exported_path = None
                 if blueprint.local:
-                    blueprint_exported_path = os.path.join(blueprints_path, f"{blueprint.name}{export_gltf_extension}")
+                    blueprint_exported_path = posixpath.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

tools/blenvy/materials/materials_helpers.py

@@ -1,8 +1,24 @@
 import os
+import posixpath
 import bpy
 from pathlib import Path
 from ..core.helpers_collections import (traverse_tree)
 
+def find_materials_not_on_disk(materials, folder_path, extension):
+    not_found_materials = []
+    for material in materials:
+        gltf_output_path = os.path.join(folder_path, material.name + extension)
+        # print("gltf_output_path", gltf_output_path)
+        found = os.path.exists(gltf_output_path) and os.path.isfile(gltf_output_path)
+        if not found:
+            not_found_materials.append(material)
+    return not_found_materials
+
+def check_if_material_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)
+    return found
+
 # get materials per object, and injects the materialInfo component
 def get_materials(object, materials_per_object):
     material_slots = object.material_slots
@@ -38,11 +54,11 @@ def add_material_info_to_objects(materials_per_object, settings):
 
     current_project_name = Path(bpy.context.blend_data.filepath).stem
     materials_library_name = f"{current_project_name}_materials"
-    materials_exported_path = os.path.join(materials_path, f"{materials_library_name}{export_gltf_extension}")
+    materials_exported_path = posixpath.join(materials_path, f"{materials_library_name}{export_gltf_extension}")
     for object in materials_per_object.keys():
         material = materials_per_object[object]
         # TODO: switch to using actual components ?
-        materials_exported_path = os.path.join(materials_path, f"{materials_library_name}{export_gltf_extension}")
+        materials_exported_path = posixpath.join(materials_path, f"{materials_library_name}{export_gltf_extension}")
         object['MaterialInfo'] = f'(name: "{material.name}", path: "{materials_exported_path}")'