Improves asset loading and scene management

Adds scene management system with GameObjects and Components.

Improves asset loading by scanning assets in a background thread and queuing textures for upload. Also displays a progress bar in the file browser for texture loading.

Adds basic component system with TagComponent to identify GameObjects
by a user defined name.

CMakeLists.txt

@@ -100,6 +100,13 @@ add_library(Core STATIC
         src/core/systems/assets/Texture2D.cpp
         src/core/systems/assets/Texture2D.h
         src/core/systems/Shader.cpp
+        src/core/systems/Scene/Scene.cpp
+        src/core/systems/Scene/Scene.h
+        src/core/systems/Scene/GameObject.cpp
+        src/core/systems/Scene/GameObject.h
+        src/core/systems/Scene/Components/TagComponent.cpp
+        src/core/systems/Scene/Components/TagComponent.h
+        src/core/systems/Scene/Components/Component.h
 )
 
 target_include_directories(Core PUBLIC src/core)

src/core/systems/AssetManager.cpp

@@ -16,6 +16,10 @@ namespace OX
     std::unordered_map<std::string, std::shared_ptr<Asset> > AssetManager::s_LoadedAssets;
     std::unordered_map<std::string, AssetManager::AssetMetadata> AssetManager::s_MetadataMap;
 
+    std::atomic<size_t> OX::AssetManager::s_TotalTexturesToLoad{0};
+    std::atomic<size_t> OX::AssetManager::s_LoadedTexturesCount{0};
+
+
     // Map from an actual file path to virtual ID
     std::unordered_map<std::string, std::string> AssetManager::s_PathToID;
     std::mutex AssetManager::s_AssetMutex;
@@ -39,13 +43,13 @@ namespace OX
         s_FileTree->name = "res://";
         s_FileTree->path = "res://";
         s_FileTree->isDirectory = true;
-
+        s_TotalTexturesToLoad.store(0);
+        s_LoadedTexturesCount.store(0);
         s_ScanThread = std::thread(BackgroundScan);
     }
 
     void AssetManager::Shutdown()
     {
-
         s_Scanning = false;
 
         if (s_ScanThread.joinable()) {
@@ -62,56 +66,76 @@ namespace OX
         s_FileTree->name = "res://";
         s_FileTree->path = "res://";
         s_FileTree->isDirectory = true;
-
+        s_TotalTexturesToLoad.store(0);
+        s_LoadedTexturesCount.store(0);
         s_ScanThread = std::thread(BackgroundScan);
     }
 
     void AssetManager::BackgroundScan()
     {
-        while (s_Scanning) {
-            for (auto &entry: fs::recursive_directory_iterator(s_ProjectRoot)) {
+        namespace fs = std::filesystem;
 
-                if (!s_Scanning) break; // Note: This is needed or shutdown takes ages.
+        size_t totalTextures = 0;
+        for (auto &entry: fs::recursive_directory_iterator(s_ProjectRoot)) {
+            if (!s_Scanning) break;
+            if (!entry.is_directory()) {
+                if (DetectAssetType(entry.path()) == "texture2D")
+                    ++totalTextures;
+            }
+        }
+        s_TotalTexturesToLoad.store(totalTextures, std::memory_order_relaxed);
+        s_LoadedTexturesCount.store(0, std::memory_order_relaxed);
+
+
+        while (s_Scanning) {
+            std::vector<fs::directory_entry> allEntries;
+            allEntries.reserve(1024);
+            for (auto &entry: fs::recursive_directory_iterator(s_ProjectRoot)) {
+                if (!s_Scanning) break;
+                allEntries.push_back(entry);
+            }
+
+            std::vector<std::pair<std::string, AssetMetadata> > newMetadata;
+            newMetadata.reserve(256);
+
+            for (auto &entry: allEntries) {
+                if (!s_Scanning) break;
 
                 const auto &path = entry.path();
                 std::string resPath = MakeVirtualPath(path);
 
                 if (entry.is_directory()) {
-                    // you can also guard directories if you like:
-                    // std::lock_guard g(s_AssetMutex);
-                    // if (s_MetadataMap.count(resPath)) continue;
                     AddToTree(resPath, true);
-                } else {
-                    {
-                        // quick check: have we already seen this asset?
-                        std::lock_guard<std::mutex> lock(s_AssetMutex);
-                        if (s_MetadataMap.find(resPath) != s_MetadataMap.end())
-                            continue;
-                        // reserve a spot so other threads know it's in-flight
-                        s_MetadataMap[resPath] = {"", ""};
-                    }
+                    continue;
+                } {
+                    std::lock_guard<std::mutex> lock(s_AssetMutex);
+                    if (s_MetadataMap.count(resPath))
+                        continue;
+                    s_MetadataMap.emplace(resPath, AssetMetadata{"", ""});
+                }
+                AddToTree(resPath, false);
 
-                    AddToTree(resPath, false);
+                if (DetectAssetType(path) == "texture2D") {
+                    int w, h, ch;
+                    stbi_set_flip_vertically_on_load(1);
+                    unsigned char *data = stbi_load(path.string().c_str(), &w, &h, &ch, 0);
+                    if (!data) continue;
 
-                    auto type = DetectAssetType(path);
-                    if (type == "texture2D") {
-                        int w, h, ch;
-                        stbi_set_flip_vertically_on_load(1);
-                        unsigned char *data = stbi_load(
-                            path.string().c_str(), &w, &h, &ch, 0
-                        );
-                        if (data) {
-                            {
-                                std::lock_guard<std::mutex> lock(s_AssetMutex);
-                                // now fill in the real metadata
-                                s_MetadataMap[resPath] = {type, path.string()};
-                            }
-                            std::lock_guard<std::mutex> qlock(s_QueueMutex);
-                            s_TextureQueue.push({resPath, w, h, ch, data});
-                        }
+                    newMetadata.emplace_back(resPath, AssetMetadata{"texture2D", path.string()}); {
+                        std::lock_guard<std::mutex> qlock(s_QueueMutex);
+                        s_TextureQueue.push({resPath, w, h, ch, data});
                     }
                 }
             }
+
+            if (!newMetadata.empty()) {
+                std::lock_guard<std::mutex> lock(s_AssetMutex);
+                for (auto &kv: newMetadata)
+                    s_MetadataMap[kv.first] = kv.second;
+            }
+
+            if (s_Scanning)
+                std::this_thread::sleep_for(std::chrono::milliseconds(100));
         }
 
         s_Scanning = false;
@@ -124,6 +148,8 @@ namespace OX
         while (!s_TextureQueue.empty()) {
             auto pending = s_TextureQueue.front();
             s_TextureQueue.pop();
+            s_LoadedTexturesCount.fetch_add(1, std::memory_order_relaxed);
+
 
             GLuint texID;
             glGenTextures(1, &texID);

src/core/systems/AssetManager.h

@@ -12,66 +12,85 @@
 #include <vector>
 #include <cstdint>
 
-namespace OX {
+namespace OX
+{
     class Asset;
 
-    struct ResourceTreeNode {
+    struct ResourceTreeNode
+    {
         std::string name;
         std::string path;
         bool isDirectory = false;
-        std::vector<std::shared_ptr<ResourceTreeNode>> children;
+        std::vector<std::shared_ptr<ResourceTreeNode> > children;
     };
 
-    class AssetManager {
+    class AssetManager
+    {
     public:
         // -- Lifecycle --
-        static void Init(const std::string& projectRoot);
+        static void Init(const std::string &projectRoot);
+
         static void Shutdown();
+
         static void Tick();
+
         static void Rescan();
 
+
+        static size_t GetTotalTexturesToLoad() { return s_TotalTexturesToLoad.load(); }
+        static size_t GetLoadedTexturesCount()  { return s_LoadedTexturesCount.load(); }
+
         // -- Queries --
         // Lookup by virtual path ("res://…") or real FS path.
-        static std::shared_ptr<Asset> Get(const std::string& path);
+        static std::shared_ptr<Asset> Get(const std::string &path);
 
         static std::shared_ptr<ResourceTreeNode> GetFileTree();
-        static void SaveAssetPack(const std::string& outputPath);
 
-        static std::mutex                 s_TreeMutex;
+        static void SaveAssetPack(const std::string &outputPath);
 
+        static std::mutex s_TreeMutex;
 
     private:
-        struct AssetMetadata {
+        struct AssetMetadata
+        {
             std::string type;
             std::string absolutePath;
         };
-        struct PendingTexture {
+
+        struct PendingTexture
+        {
             std::string id;
             int width, height, channels;
-            unsigned char* data;
+            unsigned char *data;
         };
 
         static void BackgroundScan();
-        static void AddToTree(const std::string& virtualPath, bool isDir);
-        static std::string DetectAssetType(const std::filesystem::path& path);
-        static std::string MakeVirtualPath(const std::filesystem::path& full);
+
+        static void AddToTree(const std::string &virtualPath, bool isDir);
+
+        static std::string DetectAssetType(const std::filesystem::path &path);
+
+        static std::string MakeVirtualPath(const std::filesystem::path &full);
 
         // loaded assets & metadata
         static std::unordered_map<std::string, std::string> s_PathToID;
-        static std::unordered_map<std::string, std::shared_ptr<Asset>> s_LoadedAssets;
-        static std::unordered_map<std::string, AssetMetadata>        s_MetadataMap;
-        static std::mutex                                           s_AssetMutex;
+        static std::unordered_map<std::string, std::shared_ptr<Asset> > s_LoadedAssets;
+        static std::unordered_map<std::string, AssetMetadata> s_MetadataMap;
+        static std::mutex s_AssetMutex;
 
         // directory tree
         static std::shared_ptr<ResourceTreeNode> s_FileTree;
 
         // background scan
         static std::filesystem::path s_ProjectRoot;
-        static std::atomic<bool>    s_Scanning;
-        static std::thread          s_ScanThread;
+        static std::atomic<bool> s_Scanning;
+        static std::thread s_ScanThread;
 
         // texture upload queue
         static std::queue<PendingTexture> s_TextureQueue;
-        static std::mutex                 s_QueueMutex;
+        static std::mutex s_QueueMutex;
+
+        static std::atomic<size_t> s_TotalTexturesToLoad;
+        static std::atomic<size_t> s_LoadedTexturesCount;
     };
 }

src/core/systems/Scene/Components/Component.h

@@ -0,0 +1,36 @@
+//
+// Created by spenc on 5/22/2025.
+//
+
+#pragma once
+
+#include <yaml-cpp/yaml.h>
+
+namespace OX
+{
+    class GameObject;
+
+    class Component
+    {
+    public:
+        virtual ~Component() = default;
+
+        /// Called when this component is attached to a GameObject.
+        virtual void OnAttach(GameObject *owner) { m_owner = owner; }
+
+        /// Called just before this component is detached or destroyed.
+        virtual void OnDetach() { m_owner = nullptr; }
+
+        /// Returns the GameObject this component is attached to (or nullptr).
+        [[nodiscard]] GameObject *GetOwner() const { return m_owner; }
+
+        /// Serialize this component’s state into a YAML node.
+        [[nodiscard]] virtual YAML::Node Serialize() const = 0;
+
+        /// Restore this component’s state from a YAML node.
+        virtual void Deserialize(const YAML::Node &node) = 0;
+
+    protected:
+        GameObject *m_owner = nullptr;
+    };
+};

src/core/systems/Scene/Components/TagComponent.cpp

@@ -0,0 +1,23 @@
+//
+// Created by spenc on 5/22/2025.
+//
+
+// src/Components/TagComponent.cpp
+#include "TagComponent.h"
+
+namespace OX
+{
+    YAML::Node TagComponent::Serialize() const
+    {
+        YAML::Node node;
+        node["type"] = "TagComponent";
+        node["name"] = name;
+        return node;
+    }
+
+    void TagComponent::Deserialize(const YAML::Node &node)
+    {
+        if (node["name"])
+            name = node["name"].as<std::string>();
+    }
+} // namespace OX

src/core/systems/Scene/Components/TagComponent.h

@@ -0,0 +1,30 @@
+// src/h/Components/TagComponent.h
+#pragma once
+
+#include <string>
+#include <utility>
+#include <yaml-cpp/yaml.h>
+#include "Component.h"
+
+namespace OX
+{
+    class TagComponent : public Component
+    {
+    public:
+        TagComponent() = default;
+
+        explicit TagComponent(std::string tag)
+            : name(std::move(tag))
+        {
+        }
+
+        /// The tag string you’ll look up by
+        std::string name;
+
+        /// Serialize into YAML: writes { type: "TagComponent", name: "<your tag>" }
+        [[nodiscard]] YAML::Node Serialize() const override;
+
+        /// Deserialize from YAML: reads `.name` from node["name"]
+        void Deserialize(const YAML::Node &node) override;
+    };
+} // namespace OX

src/core/systems/Scene/GameObject.cpp

@@ -0,0 +1,88 @@
+// src/GameObject.cpp
+#include "GameObject.h"
+
+namespace OX
+{
+    GameObject::GameObject(const std::string &name)
+        : m_name(name)
+    {
+    }
+
+    GameObject::~GameObject() = default;
+
+    void GameObject::setName(const std::string &name) { m_name = name; }
+    const std::string &GameObject::name() const { return m_name; }
+
+    GameObject *GameObject::parent() const { return m_parent; }
+
+    void GameObject::addChild(std::unique_ptr<GameObject> child)
+    {
+        child->m_parent = this;
+        m_children.push_back(std::move(child));
+    }
+
+    std::unique_ptr<GameObject> GameObject::removeChild(GameObject *child)
+    {
+        auto it = std::find_if(m_children.begin(), m_children.end(),
+                               [child](const std::unique_ptr<GameObject> &u) { return u.get() == child; });
+        if (it == m_children.end()) return nullptr;
+        auto out = std::move(*it);
+        out->m_parent = nullptr;
+        m_children.erase(it);
+        return out;
+    }
+
+    const std::vector<std::unique_ptr<GameObject> > &GameObject::children() const
+    {
+        return m_children;
+    }
+
+    void GameObject::addComponent(std::unique_ptr<Component> comp)
+    {
+        comp->OnAttach(this);
+        m_components.push_back(std::move(comp));
+    }
+
+    const std::vector<std::unique_ptr<Component> > &GameObject::components() const
+    {
+        return m_components;
+    }
+
+    YAML::Node GameObject::Serialize() const
+    {
+        YAML::Node node;
+        node["name"] = m_name;
+
+        for (auto &comp: m_components)
+            node["components"].push_back(comp->Serialize());
+
+        for (auto &child: m_children)
+            node["children"].push_back(child->Serialize());
+
+        return node;
+    }
+
+    void GameObject::Deserialize(const YAML::Node &node)
+    {
+        if (node["name"])
+            m_name = node["name"].as<std::string>();
+
+        if (node["components"]) {
+            for (auto &cnode: node["components"]) {
+                // e.g.:
+                // std::string type = cnode["type"].as<std::string>();
+                // auto comp = ComponentFactory::Create(type);
+                // comp->Deserialize(cnode);
+                // addComponent(std::move(comp));
+            }
+        }
+
+        if (node["children"]) {
+            for (auto &cnode: node["children"]) {
+                auto child = std::make_unique<GameObject>();
+                child->Deserialize(cnode);
+                addChild(std::move(child));
+            }
+        }
+    }
+} // namespace OX

src/core/systems/Scene/GameObject.h

@@ -0,0 +1,82 @@
+// src/h/GameObject.h
+#pragma once
+
+#include <string>
+#include <vector>
+#include <memory>
+#include <yaml-cpp/yaml.h>
+#include "Components/Component.h"
+
+namespace OX
+{
+    class GameObject
+    {
+    public:
+        explicit GameObject(const std::string &name = "");
+
+        ~GameObject();
+
+        // Name
+        void setName(const std::string &name);
+
+        const std::string &name() const;
+
+        // Hierarchy
+        GameObject *parent() const;
+
+        void addChild(std::unique_ptr<GameObject> child);
+
+        std::unique_ptr<GameObject> removeChild(GameObject *child);
+
+        const std::vector<std::unique_ptr<GameObject> > &children() const;
+
+        // Components
+        void addComponent(std::unique_ptr<Component> comp);
+
+        template<typename T>
+        T *getComponent() const;
+
+        template<typename T>
+        std::unique_ptr<Component> removeComponent();
+
+        const std::vector<std::unique_ptr<Component> > &components() const;
+
+        // Serialization
+        YAML::Node Serialize() const;
+
+        void Deserialize(const YAML::Node &node);
+
+    private:
+        std::string m_name;
+        GameObject *m_parent = nullptr;
+        std::vector<std::unique_ptr<GameObject> > m_children;
+        std::vector<std::unique_ptr<Component> > m_components;
+    };
+
+    template<typename T>
+    T *GameObject::getComponent() const
+    {
+        for (auto &c: m_components) {
+            if (auto ptr = dynamic_cast<T *>(c.get()))
+                return ptr;
+        }
+        return nullptr;
+    }
+
+    template<typename T>
+    std::unique_ptr<Component> GameObject::removeComponent()
+    {
+        auto it = std::find_if(m_components.begin(), m_components.end(),
+                               [](const std::unique_ptr<Component> &c)
+                               {
+                                   return dynamic_cast<T *>(c.get()) != nullptr;
+                               });
+        if (it == m_components.end())
+            return nullptr;
+
+        auto out = std::move(*it);
+        out->OnDetach();
+        m_components.erase(it);
+        return out;
+    }
+} // namespace OX

src/core/systems/Scene/Scene.cpp

@@ -0,0 +1,60 @@
+// src/Scene.cpp
+#include "Scene.h"
+#include <algorithm>  // for std::find_if
+
+namespace OX
+{
+    GameObject *Scene::createRootObject(const std::string &name)
+    {
+        auto go = std::make_unique<GameObject>(name);
+        GameObject *ptr = go.get();
+        registerByTag(ptr);
+        m_roots.push_back(std::move(go));
+        return ptr;
+    }
+
+    bool Scene::removeRootObject(GameObject *go)
+    {
+        auto it = std::find_if(
+            m_roots.begin(), m_roots.end(),
+            [go](const std::unique_ptr<GameObject> &u) { return u.get() == go; }
+        );
+        if (it == m_roots.end())
+            return false;
+
+        unregisterByTag(go);
+        m_roots.erase(it);
+        return true;
+    }
+
+    const std::vector<std::unique_ptr<GameObject> > &Scene::roots() const
+    {
+        return m_roots;
+    }
+
+    GameObject *Scene::findByTag(const std::string &tag) const
+    {
+        auto it = m_tagIndex.find(tag);
+        return (it != m_tagIndex.end()) ? it->second : nullptr;
+    }
+
+    void Scene::registerByTag(GameObject *go)
+    {
+        if (auto tc = go->getComponent<TagComponent>()) {
+            m_tagIndex[tc->name] = go;
+        }
+        for (auto &child: go->children()) {
+            registerByTag(child.get());
+        }
+    }
+
+    void Scene::unregisterByTag(GameObject *go)
+    {
+        if (auto tc = go->getComponent<TagComponent>()) {
+            m_tagIndex.erase(tc->name);
+        }
+        for (auto &child: go->children()) {
+            unregisterByTag(child.get());
+        }
+    }
+} // namespace OX

src/core/systems/Scene/Scene.h

@@ -0,0 +1,44 @@
+// src/h/Scene.h
+#pragma once
+
+#include <vector>
+#include <memory>
+#include <unordered_map>
+#include <string>
+
+#include "GameObject.h"
+#include "Components/TagComponent.h"
+#include "systems/MACROS.h"
+
+namespace OX
+{
+    class Scene
+    {
+    public:
+        Scene() = default;
+
+        ~Scene() = default;
+
+        /// Create and own a new root GameObject. Returns the raw pointer.
+        GameObject *createRootObject(const std::string &name = "");
+
+        /// Remove (and destroy) a root object by pointer.
+        bool removeRootObject(GameObject *go);
+
+        /// Access all root objects.
+        const std::vector<std::unique_ptr<GameObject> > &roots() const;
+
+        /// O(1)
+        GameObject *findByTag(const std::string &tag) const;
+
+        /// Must be called whenever a GameObject’s tag is set or changed.
+        void registerByTag(GameObject *go);
+
+        /// Must be called before a GameObject is destroyed or its tag changes.
+        void unregisterByTag(GameObject *go);
+
+    private:
+        std::vector<std::unique_ptr<GameObject> > m_roots;
+        std::unordered_map<std::string, GameObject *> m_tagIndex;
+    };
+} // namespace OX

src/editor/Editor.cpp

@@ -44,7 +44,6 @@ namespace OX
 
         fileBrowser = std::make_shared<FileBrowser>();
         primaryViewport = std::make_shared<Viewport>();
-
     }
 
     void Editor::Update(Core &core)
@@ -153,8 +152,6 @@ namespace OX
 
         // --- Render ImGui onto FBO 0 ---
         {
-
-
             ImGui::EndFrame();
             ImGui::Render();
             ImGui::UpdatePlatformWindows();
@@ -164,11 +161,8 @@ namespace OX
 
     void Editor::Shutdown(Core &core)
     {
-
-
         ImGui_ImplOpenGL3_Shutdown();
         ImGui_ImplGlfw_Shutdown();
         ImGui::DestroyContext();
-
     }
 } // OX

src/editor/Windows/FileBrowser.cpp

@@ -5,40 +5,60 @@
 
 namespace OX
 {
-    FileBrowser::FileBrowser() = default;
+    FileBrowser::FileBrowser()
+        : _lastProgress(0.0f)
+    {
+    }
 
     FileBrowser::~FileBrowser() = default;
 
+    // Call this every frame to report your current loading progress (0.0 → 1.0).
+    // Passing in 0 resets it and hides the bar.
+    void FileBrowser::SetProgress(const float p)
+    {
+        if (p <= 0.0f) {
+            _lastProgress = 0.0f;
+        } else {
+            _lastProgress = std::max(_lastProgress, p);
+        }
+    }
+
     void FileBrowser::SetFilter(const std::string &f) { _filter = f; }
     void FileBrowser::SetFileSelectedCallback(FileSelectedCallback cb) { _onFileSelected = std::move(cb); }
 
     void FileBrowser::Draw(const char *title)
     {
         OX_PROFILE_FUNCTION();
+
+
         ImGui::Begin(title);
 
-        // --- toolbar now contains back button, inline path, filter & view toggle all on one row ---
         DrawToolbar();
 
-        // main content
+        // ——— main content ———
         auto root = AssetManager::GetFileTree();
         std::function<std::shared_ptr<ResourceTreeNode>(std::shared_ptr<ResourceTreeNode>, const std::string &)> find =
-                [&](auto node, const std::string &path)-> std::shared_ptr<ResourceTreeNode>
+                [&](auto node, const std::string &path) -> std::shared_ptr<ResourceTreeNode>
         {
-            if (node->path == path) return node;
-            for (auto &c: node->children) {
-                if (c->isDirectory) {
-                    if (auto f = find(c, path)) return f;
-                }
-            }
+            if (node->path == path)
+                return node;
+            for (auto &c: node->children)
+                if (c->isDirectory)
+                    if (auto f = find(c, path))
+                        return f;
             return nullptr;
         };
+
         auto node = find(root, _currentPath);
         if (!node) {
             ImGui::TextColored(ImGui::GetStyle().Colors[ImGuiCol_TextDisabled],
                                "Path not found: %s", _currentPath.c_str());
         } else if (_gridMode) {
+            // ——— Grid view with nicer spacing ———
+            ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(_cfg.padding, _cfg.padding));
+            ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(_cfg.padding, _cfg.padding));
             DrawGridView(node);
+            ImGui::PopStyleVar(2);
         } else {
             DrawListView(node);
         }
@@ -49,7 +69,6 @@ namespace OX
     // ——— Combined toolbar & inline path ———
     void FileBrowser::DrawToolbar()
     {
-        // back button
         if (_currentPath != "res://") {
             if (ImGui::Button("Back")) {
                 auto pos = _currentPath.find_last_of('/');
@@ -57,31 +76,34 @@ namespace OX
                                    ? _currentPath.substr(0, pos)
                                    : "res://";
             }
+            ImGui::SameLine();
         }
-        ImGui::SameLine();
 
-        // inline, non-interactive path text
         ImGui::Text("%s", _currentPath.c_str());
-
         ImGui::SameLine();
 
-        // filter input takes all remaining space
         float avail = ImGui::GetContentRegionAvail().x;
         ImGui::PushItemWidth(avail * 0.5f);
-        //ImGui::InputTextWithHint("##filter", "Filter files...", _filter.c_str(), ImGuiInputTextFlags_AutoSelectAll);
-
-
+        //ImGui::InputTextWithHint("##filter", "Filter files...", &_filter);
         ImGui::PopItemWidth();
-
         ImGui::SameLine();
 
-        // grid/list toggle
         if (_gridMode) {
             if (ImGui::Button("List View")) _gridMode = false;
         } else {
             if (ImGui::Button("Grid View")) _gridMode = true;
         }
 
+        size_t total = AssetManager::GetTotalTexturesToLoad();
+        size_t loaded = AssetManager::GetLoadedTexturesCount();
+
+        if (total > 0 && loaded < total) {
+            float progress = float(loaded) / float(total);
+            ImGui::SameLine();
+            ImGui::ProgressBar(progress, ImVec2(-1, 0));
+        }
+
+
         ImGui::Separator();
     }
 
@@ -89,39 +111,44 @@ namespace OX
     void FileBrowser::DrawGridView(const std::shared_ptr<ResourceTreeNode> &node)
     {
         OX_PROFILE_FUNCTION();
+
         const float cellW = _cfg.thumbnailSize + _cfg.padding * 2;
         ImVec2 avail = ImGui::GetContentRegionAvail();
         int cols = std::max(1, int(avail.x / cellW));
 
-        ImGui::BeginChild("GridRegion", ImVec2(0, 0), false, ImGuiWindowFlags_AlwaysUseWindowPadding);
+        // Add a little padding around the child region
+        ImGui::BeginChild("GridRegion",
+                          ImVec2(0, 0),
+                          false,
+                          ImGuiWindowFlags_AlwaysUseWindowPadding);
+
         ImGui::Columns(cols, nullptr, false);
 
         std::vector<std::shared_ptr<ResourceTreeNode> > children; {
-            std::lock_guard<std::mutex> lock(AssetManager::s_TreeMutex); // assume you add this mutex
+            std::lock_guard<std::mutex> lock(AssetManager::s_TreeMutex);
             children = node->children;
         }
-        for (auto &c: children) {
-            if (!c) return;
 
+        for (auto &c: children) {
+            if (!c) continue;
             if (!_filter.empty() && !PassesFilter(c->name)) continue;
 
             ImGui::PushID(c->path.c_str());
             ImGui::BeginGroup();
 
-            // invisible button as hit target
             ImVec2 btnSize(cellW, _cfg.thumbnailSize + _cfg.labelHeight + _cfg.padding);
             ImGui::InvisibleButton("cell", btnSize);
             bool hovered = ImGui::IsItemHovered();
             bool clicked = ImGui::IsItemClicked();
 
-            // background rect
+            // background
             ImVec2 mn = ImGui::GetItemRectMin();
             ImVec2 mx = ImGui::GetItemRectMax();
             ImU32 bg = hovered ? _cfg.highlightColor : _cfg.bgColor;
             ImGui::GetWindowDrawList()
                     ->AddRectFilled(mn, mx, bg, 4.0f);
 
-            // thumbnail or icon
+            // thumbnail
             ImGui::SetCursorScreenPos({mn.x + _cfg.padding, mn.y + _cfg.padding});
             if (c->isDirectory) {
                 ImGui::Image(GetIconTexture(*c),
@@ -146,11 +173,10 @@ namespace OX
 
             // click handling
             if (clicked) {
-                if (c->isDirectory) {
+                if (c->isDirectory)
                     _currentPath = c->path;
-                } else if (_onFileSelected) {
+                else if (_onFileSelected)
                     _onFileSelected(c->path);
-                }
             }
 
             ImGui::EndGroup();
@@ -171,11 +197,10 @@ namespace OX
             if (!_filter.empty() && !PassesFilter(c->name)) continue;
             if (ImGui::Selectable(c->name.c_str(), false, ImGuiSelectableFlags_AllowDoubleClick)) {
                 if (ImGui::IsMouseDoubleClicked(0)) {
-                    if (c->isDirectory) {
+                    if (c->isDirectory)
                         _currentPath = c->path;
-                    } else if (_onFileSelected) {
+                    else if (_onFileSelected)
                         _onFileSelected(c->path);
-                    }
                 }
             }
         }
@@ -185,8 +210,7 @@ namespace OX
 
     bool FileBrowser::PassesFilter(const std::string &name) const
     {
-        return _filter.empty() ||
-               (name.find(_filter) != std::string::npos);
+        return _filter.empty() || (name.find(_filter) != std::string::npos);
     }
 
     ImTextureID FileBrowser::GetIconTexture(const ResourceTreeNode &node)

src/editor/Windows/FileBrowser.h

@@ -43,6 +43,8 @@ namespace OX {
         /// Called whenever the user clicks on a file (not directory)
         void SetFileSelectedCallback(FileSelectedCallback cb);
 
+
+
         /// Access to tweak colors/sizes
         FileBrowserConfig& Config() { return _cfg; }
 
@@ -52,7 +54,8 @@ namespace OX {
         void DrawBreadcrumbs();
         void DrawGridView(const std::shared_ptr<ResourceTreeNode>& node);
         void DrawListView(const std::shared_ptr<ResourceTreeNode>& node);
-        bool PassesFilter(const std::string& name) const;
+        [[nodiscard]] bool PassesFilter(const std::string& name) const;
+        void SetProgress(float p);
         ImTextureID GetIconTexture(const ResourceTreeNode&);  // stub for folder/file icons
 
         // state
@@ -61,5 +64,8 @@ namespace OX {
         std::string                    _filter;
         bool                           _gridMode    = true;
         FileSelectedCallback           _onFileSelected;
+        float                          _lastProgress;
+        size_t                         _maxQueueSize;
+
     };
 } // namespace OX