diff --git a/src/assets/AssetsLoader.cpp b/src/assets/AssetsLoader.cpp
index 6ed34baa..182bed6f 100644
--- a/src/assets/AssetsLoader.cpp
+++ b/src/assets/AssetsLoader.cpp
@@ -272,15 +272,15 @@ public:
     LoaderWorker(AssetsLoader* loader) : loader(loader) {
     }
 
-    assetload::postfunc operator()(const std::shared_ptr<aloader_entry>& entry
+    assetload::postfunc operator()(const aloader_entry& entry
     ) override {
-        aloader_func loadfunc = loader->getLoader(entry->tag);
+        aloader_func loadfunc = loader->getLoader(entry.tag);
         return loadfunc(
             loader,
             loader->getPaths(),
-            entry->filename,
-            entry->alias,
-            entry->config
+            entry.filename,
+            entry.alias,
+            entry.config
         );
     }
 };
@@ -290,14 +290,13 @@ std::shared_ptr<Task> AssetsLoader::startTask(runnable onDone) {
         std::make_shared<util::ThreadPool<aloader_entry, assetload::postfunc>>(
             "assets-loader-pool",
             [=]() { return std::make_shared<LoaderWorker>(this); },
-            [=](assetload::postfunc& func) { func(assets); }
+            [=](const assetload::postfunc& func) { func(assets); }
         );
     pool->setOnComplete(std::move(onDone));
     while (!entries.empty()) {
-        const aloader_entry& entry = entries.front();
-        auto ptr = std::make_shared<aloader_entry>(entry);
-        pool->enqueueJob(ptr);
+        aloader_entry entry = std::move(entries.front());
         entries.pop();
+        pool->enqueueJob(std::move(entry));
     }
     return pool;
 }
diff --git a/src/assets/AssetsLoader.hpp b/src/assets/AssetsLoader.hpp
index 602d841a..2321f9a3 100644
--- a/src/assets/AssetsLoader.hpp
+++ b/src/assets/AssetsLoader.hpp
@@ -43,8 +43,8 @@ using aloader_func = std::function<
 
 struct aloader_entry {
     AssetType tag;
-    const std::string filename;
-    const std::string alias;
+    std::string filename;
+    std::string alias;
     std::shared_ptr<AssetCfg> config;
 };
 
diff --git a/src/files/WorldConverter.cpp b/src/files/WorldConverter.cpp
index 46b85868..f9484142 100644
--- a/src/files/WorldConverter.cpp
+++ b/src/files/WorldConverter.cpp
@@ -27,8 +27,8 @@ public:
         : converter(std::move(converter)) {
     }
 
-    int operator()(const std::shared_ptr<ConvertTask>& task) override {
-        converter->convert(*task);
+    int operator()(const ConvertTask& task) override {
+        converter->convert(task);
         return 0;
     }
 };
@@ -169,10 +169,10 @@ std::shared_ptr<Task> WorldConverter::startTask(
     );
     auto& converterTasks = converter->tasks;
     while (!converterTasks.empty()) {
-        const ConvertTask& task = converterTasks.front();
-        auto ptr = std::make_shared<ConvertTask>(task);
-        pool->enqueueJob(ptr);
+        ConvertTask task = std::move(converterTasks.front());
         converterTasks.pop();
+        pool->enqueueJob(std::move(task));
+        
     }
     pool->setOnComplete([=]() {
         converter->write();
diff --git a/src/graphics/core/Mesh.cpp b/src/graphics/core/Mesh.cpp
index ac4e2b14..78380ae1 100644
--- a/src/graphics/core/Mesh.cpp
+++ b/src/graphics/core/Mesh.cpp
@@ -4,6 +4,21 @@
 int Mesh::meshesCount = 0;
 int Mesh::drawCalls = 0;
 
+inline size_t calc_vertex_size(const vattr* attrs) {
+    size_t vertexSize = 0;
+    for (int i = 0; attrs[i].size; i++) {
+        vertexSize += attrs[i].size;
+    }
+    return vertexSize;
+}
+
+Mesh::Mesh(const MeshData& data)
+ : Mesh(data.vertices.data(), 
+        data.vertices.size() / calc_vertex_size(data.attrs.data()),
+        data.indices.data(),
+        data.indices.size(),
+        data.attrs.data()) {}
+
 Mesh::Mesh(const float* vertexBuffer, size_t vertices, const int* indexBuffer, size_t indices, const vattr* attrs) : 
     ibo(0),
     vertices(vertices),
diff --git a/src/graphics/core/Mesh.hpp b/src/graphics/core/Mesh.hpp
index c94154a6..87c8e69b 100644
--- a/src/graphics/core/Mesh.hpp
+++ b/src/graphics/core/Mesh.hpp
@@ -1,11 +1,9 @@
 #pragma once
 
 #include <stdlib.h>
-#include "typedefs.hpp"
 
-struct vattr {
-    ubyte size;
-};
+#include "typedefs.hpp"
+#include "MeshData.hpp"
 
 class Mesh {
     unsigned int vao;
@@ -15,6 +13,7 @@ class Mesh {
     size_t indices;
     size_t vertexSize;
 public:
+    Mesh(const MeshData& data);
     Mesh(const float* vertexBuffer, size_t vertices, const int* indexBuffer, size_t indices, const vattr* attrs);
     Mesh(const float* vertexBuffer, size_t vertices, const vattr* attrs) :
         Mesh(vertexBuffer, vertices, nullptr, 0, attrs) {};
diff --git a/src/graphics/core/MeshData.hpp b/src/graphics/core/MeshData.hpp
new file mode 100644
index 00000000..62b32903
--- /dev/null
+++ b/src/graphics/core/MeshData.hpp
@@ -0,0 +1,31 @@
+#pragma once
+
+#include <vector>
+
+#include "typedefs.hpp"
+#include "util/Buffer.hpp"
+
+/// @brief Vertex attribute info
+struct vattr {
+    ubyte size;
+};
+
+/// @brief Raw mesh data structure
+struct MeshData {
+    util::Buffer<float> vertices;
+    util::Buffer<int> indices;
+    util::Buffer<vattr> attrs;
+
+    MeshData() = default;
+
+    /// @param vertices vertex data buffer
+    /// @param indices nullable indices buffer
+    /// @param attrs vertex attribute sizes (must be null-terminated) 
+    MeshData(
+        util::Buffer<float> vertices, 
+        util::Buffer<int> indices,
+        util::Buffer<vattr> attrs
+    ) : vertices(std::move(vertices)),
+        indices(std::move(indices)),
+        attrs(std::move(attrs)) {}
+};
diff --git a/src/graphics/render/BlocksRenderer.cpp b/src/graphics/render/BlocksRenderer.cpp
index e457fb69..eb3a134a 100644
--- a/src/graphics/render/BlocksRenderer.cpp
+++ b/src/graphics/render/BlocksRenderer.cpp
@@ -531,7 +531,18 @@ void BlocksRenderer::build(const Chunk* chunk, const ChunksStorage* chunks) {
     render(voxels);
 }
 
-std::shared_ptr<Mesh> BlocksRenderer::createMesh() {
+MeshData BlocksRenderer::createMesh() {
+    const vattr attrs[]{ {3}, {2}, {1}, {0} };
+    return MeshData(
+        util::Buffer<float>(vertexBuffer.get(), vertexOffset), 
+        util::Buffer<int>(indexBuffer.get(), indexSize),
+        util::Buffer<vattr>({{3}, {2}, {1}, {0}})
+    );
+}
+
+std::shared_ptr<Mesh> BlocksRenderer::render(const Chunk* chunk, const ChunksStorage* chunks) {
+    build(chunk, chunks);
+
     const vattr attrs[]{ {3}, {2}, {1}, {0} };
     size_t vcount = vertexOffset / BlocksRenderer::VERTEX_SIZE;
     return std::make_shared<Mesh>(
@@ -539,11 +550,6 @@ std::shared_ptr<Mesh> BlocksRenderer::createMesh() {
     );
 }
 
-std::shared_ptr<Mesh> BlocksRenderer::render(const Chunk* chunk, const ChunksStorage* chunks) {
-    build(chunk, chunks);
-    return createMesh();
-}
-
 VoxelsVolume* BlocksRenderer::getVoxelsBuffer() const {
     return voxelsBuffer.get();
 }
diff --git a/src/graphics/render/BlocksRenderer.hpp b/src/graphics/render/BlocksRenderer.hpp
index e0da218c..60aa3a07 100644
--- a/src/graphics/render/BlocksRenderer.hpp
+++ b/src/graphics/render/BlocksRenderer.hpp
@@ -10,6 +10,7 @@
 #include "voxels/Block.hpp"
 #include "voxels/Chunk.hpp"
 #include "voxels/VoxelsVolume.hpp"
+#include "graphics/core/MeshData.hpp"
 
 class Content;
 class Mesh;
@@ -148,7 +149,7 @@ public:
 
     void build(const Chunk* chunk, const ChunksStorage* chunks);
     std::shared_ptr<Mesh> render(const Chunk* chunk, const ChunksStorage* chunks);
-    std::shared_ptr<Mesh> createMesh();
+    MeshData createMesh();
     VoxelsVolume* getVoxelsBuffer() const;
 
     bool isCancelled() const {
diff --git a/src/graphics/render/ChunksRenderer.cpp b/src/graphics/render/ChunksRenderer.cpp
index 04bcb548..f5fb7f89 100644
--- a/src/graphics/render/ChunksRenderer.cpp
+++ b/src/graphics/render/ChunksRenderer.cpp
@@ -12,7 +12,7 @@
 
 static debug::Logger logger("chunks-render");
 
-class RendererWorker : public util::Worker<Chunk, RendererResult> {
+class RendererWorker : public util::Worker<std::shared_ptr<Chunk>, RendererResult> {
     Level* level;
     BlocksRenderer renderer;
 public:
@@ -27,7 +27,13 @@ public:
 
     RendererResult operator()(const std::shared_ptr<Chunk>& chunk) override {
         renderer.build(chunk.get(), level->chunksStorage.get());
-        return RendererResult {glm::ivec2(chunk->x, chunk->z), &renderer};
+        if (renderer.isCancelled()) {
+            return RendererResult {
+                glm::ivec2(chunk->x, chunk->z), true, MeshData()};
+        }
+        auto meshData = renderer.createMesh();
+        return RendererResult {
+            glm::ivec2(chunk->x, chunk->z), false, std::move(meshData)};
     }
 };
 
@@ -39,14 +45,13 @@ ChunksRenderer::ChunksRenderer(
     threadPool(
         "chunks-render-pool",
         [=](){return std::make_shared<RendererWorker>(level, cache, settings);}, 
-        [=](RendererResult& mesh){
-            if (!mesh.renderer->isCancelled()) {
-                meshes[mesh.key] = mesh.renderer->createMesh();
+        [=](RendererResult& result){
+            if (!result.cancelled) {
+                meshes[result.key] = std::make_shared<Mesh>(result.meshData);
             }
-            inwork.erase(mesh.key);
+            inwork.erase(result.key);
         }, settings->graphics.chunkMaxRenderers.get())
 {
-    threadPool.setStandaloneResults(false);
     threadPool.setStopOnFail(false);
     renderer = std::make_unique<BlocksRenderer>(
         settings->graphics.chunkMaxVertices.get(), 
diff --git a/src/graphics/render/ChunksRenderer.hpp b/src/graphics/render/ChunksRenderer.hpp
index 89691c4e..62d07280 100644
--- a/src/graphics/render/ChunksRenderer.hpp
+++ b/src/graphics/render/ChunksRenderer.hpp
@@ -9,6 +9,7 @@
 #include "voxels/Block.hpp"
 #include "voxels/ChunksStorage.hpp"
 #include "util/ThreadPool.hpp"
+#include "graphics/core/MeshData.hpp"
 
 class Mesh;
 class Chunk;
@@ -19,7 +20,8 @@ struct EngineSettings;
 
 struct RendererResult {
     glm::ivec2 key;
-    BlocksRenderer* renderer;
+    bool cancelled;
+    MeshData meshData;
 };
 
 class ChunksRenderer {
@@ -28,7 +30,7 @@ class ChunksRenderer {
     std::unordered_map<glm::ivec2, std::shared_ptr<Mesh>> meshes;
     std::unordered_map<glm::ivec2, bool> inwork;
 
-    util::ThreadPool<Chunk, RendererResult> threadPool;
+    util::ThreadPool<std::shared_ptr<Chunk>, RendererResult> threadPool;
 public:
     ChunksRenderer(
         Level* level, 
diff --git a/src/util/Buffer.hpp b/src/util/Buffer.hpp
index a721e646..f7bf3ff6 100644
--- a/src/util/Buffer.hpp
+++ b/src/util/Buffer.hpp
@@ -2,6 +2,7 @@
 
 #include <memory>
 #include <cstring>
+#include <initializer_list>
 
 namespace util {
     /// @brief Template similar to std::unique_ptr stores a buffer with its size
@@ -11,6 +12,8 @@ namespace util {
         std::unique_ptr<T[]> ptr;
         size_t length;
     public:
+        Buffer() = default;
+
         Buffer(size_t length)
          : ptr(std::make_unique<T[]>(length)), length(length) {
         }
@@ -23,7 +26,23 @@ namespace util {
 
         Buffer(const T* src, size_t length)
          : ptr(std::make_unique<T[]>(length)), length(length) {
-            std::memcpy(ptr.get(), src, length);
+            std::memcpy(ptr.get(), src, length * sizeof(T));
+        }
+
+        Buffer(std::initializer_list<T> values)
+         : ptr(std::make_unique<T[]>(values.size())), 
+           length(values.size()) {
+            std::copy(values.begin(), values.end(), ptr.get());
+        }
+
+        Buffer(std::nullptr_t) noexcept : ptr(nullptr), length(0) {}
+
+        inline bool operator==(std::nullptr_t) const noexcept {
+            return ptr == nullptr;
+        }
+
+        inline bool operator!=(std::nullptr_t) const noexcept {
+            return ptr != nullptr;
         }
 
         T& operator[](long long index) {
diff --git a/src/util/ThreadPool.hpp b/src/util/ThreadPool.hpp
index 3bc7f86e..98ebcce5 100644
--- a/src/util/ThreadPool.hpp
+++ b/src/util/ThreadPool.hpp
@@ -17,7 +17,7 @@ namespace util {
 
     template <class J, class T>
     struct ThreadPoolResult {
-        std::shared_ptr<J> job;
+        J job;
         std::condition_variable& variable;
         int workerIndex;
         bool& locked;
@@ -29,13 +29,13 @@ namespace util {
     public:
         Worker() = default;
         virtual ~Worker() = default;
-        virtual R operator()(const std::shared_ptr<T>&) = 0;
+        virtual R operator()(const T&) = 0;
     };
 
     template <class T, class R>
     class ThreadPool : public Task {
         debug::Logger logger;
-        std::queue<std::shared_ptr<T>> jobs;
+        std::queue<T> jobs;
         std::queue<ThreadPoolResult<T, R>> results;
         std::mutex resultsMutex;
         std::vector<std::thread> threads;
@@ -43,7 +43,7 @@ namespace util {
         std::mutex jobsMutex;
         std::vector<std::unique_lock<std::mutex>> workersBlocked;
         consumer<R&> resultConsumer;
-        consumer<std::shared_ptr<T>&> onJobFailed = nullptr;
+        consumer<T&> onJobFailed = nullptr;
         runnable onComplete = nullptr;
         std::atomic<int> busyWorkers = 0;
         std::atomic<uint> jobsDone = 0;
@@ -57,7 +57,7 @@ namespace util {
             std::mutex mutex;
             bool locked = false;
             while (working) {
-                std::shared_ptr<T> job;
+                T job;
                 {
                     std::unique_lock<std::mutex> lock(jobsMutex);
                     jobsMutexCondition.wait(lock, [this] {
@@ -66,7 +66,7 @@ namespace util {
                     if (!working || failed) {
                         break;
                     }
-                    job = jobs.front();
+                    job = std::move(jobs.front());
                     jobs.pop();
 
                     busyWorkers++;
@@ -229,10 +229,10 @@ namespace util {
             }
         }
 
-        void enqueueJob(const std::shared_ptr<T>& job) {
+        void enqueueJob(T job) {
             {
                 std::lock_guard<std::mutex> lock(jobsMutex);
-                jobs.push(job);
+                jobs.push(std::move(job));
             }
             jobsMutexCondition.notify_one();
         }