diff --git a/src/Engine/Concepts.h b/src/Engine/Concepts.h
new file mode 100644
index 0000000..33dcd4d
--- /dev/null
+++ b/src/Engine/Concepts.h
@@ -0,0 +1,13 @@
+#pragma once
+#include <concepts>
+
+namespace Seele
+{
+template<typename A>
+concept iterable = requires(A&& a)
+{
+    a.begin(); a.end();
+};
+template<class F, class... Args>
+concept invocable = std::invocable<F, Args...>;
+}
\ No newline at end of file
diff --git a/src/Engine/Graphics/RenderPass/BasePass.cpp b/src/Engine/Graphics/RenderPass/BasePass.cpp
index 1e6ce6e..7637cae 100644
--- a/src/Engine/Graphics/RenderPass/BasePass.cpp
+++ b/src/Engine/Graphics/RenderPass/BasePass.cpp
@@ -112,7 +112,7 @@ BasePass::~BasePass()
 {   
 }
 
-void BasePass::beginFrame() 
+MainJob BasePass::beginFrame() 
 {
     processor->clearCommands();
     primitiveLayout->reset();
@@ -132,6 +132,7 @@ void BasePass::beginFrame()
     descriptorSets[INDEX_VIEW_PARAMS] = viewLayout->allocateDescriptorSet();
     descriptorSets[INDEX_VIEW_PARAMS]->updateBuffer(0, viewParamBuffer);
     descriptorSets[INDEX_VIEW_PARAMS]->writeChanges();
+    co_return;
 }
 
 MainJob BasePass::render() 
@@ -161,8 +162,9 @@ MainJob BasePass::render()
     graphics->endRenderPass();
 }
 
-void BasePass::endFrame() 
+MainJob BasePass::endFrame() 
 {
+    co_return;
 }
 
 void BasePass::publishOutputs() 
diff --git a/src/Engine/Graphics/RenderPass/BasePass.h b/src/Engine/Graphics/RenderPass/BasePass.h
index f2234f3..b1ac803 100644
--- a/src/Engine/Graphics/RenderPass/BasePass.h
+++ b/src/Engine/Graphics/RenderPass/BasePass.h
@@ -37,9 +37,9 @@ class BasePass : public RenderPass<BasePassData>
 public:
     BasePass(Gfx::PGraphics graphics, Gfx::PViewport viewport, PCameraActor source);
     virtual ~BasePass();
-    virtual void beginFrame() override;
+    virtual MainJob beginFrame() override;
     virtual MainJob render() override;
-    virtual void endFrame() override;
+    virtual MainJob endFrame() override;
     virtual void publishOutputs() override;
     virtual void createRenderPass() override;
     static void modifyRenderPassMacros(Map<const char*, const char*>& defines);
diff --git a/src/Engine/Graphics/RenderPass/DepthPrepass.cpp b/src/Engine/Graphics/RenderPass/DepthPrepass.cpp
index 53dd6f5..8a76ff7 100644
--- a/src/Engine/Graphics/RenderPass/DepthPrepass.cpp
+++ b/src/Engine/Graphics/RenderPass/DepthPrepass.cpp
@@ -93,7 +93,7 @@ DepthPrepass::~DepthPrepass()
 {   
 }
 
-void DepthPrepass::beginFrame() 
+MainJob DepthPrepass::beginFrame() 
 {
     processor->clearCommands();
     primitiveLayout->reset();
@@ -111,6 +111,7 @@ void DepthPrepass::beginFrame()
     descriptorSets[INDEX_VIEW_PARAMS] = viewLayout->allocateDescriptorSet();
     descriptorSets[INDEX_VIEW_PARAMS]->updateBuffer(0, viewParamBuffer);
     descriptorSets[INDEX_VIEW_PARAMS]->writeChanges();
+    co_return;
 }
 
 MainJob DepthPrepass::render() 
@@ -130,8 +131,9 @@ MainJob DepthPrepass::render()
     graphics->endRenderPass();
 }
 
-void DepthPrepass::endFrame() 
+MainJob DepthPrepass::endFrame() 
 {
+    co_return;
 }
 
 void DepthPrepass::publishOutputs() 
diff --git a/src/Engine/Graphics/RenderPass/DepthPrepass.h b/src/Engine/Graphics/RenderPass/DepthPrepass.h
index bb53568..f6c386f 100644
--- a/src/Engine/Graphics/RenderPass/DepthPrepass.h
+++ b/src/Engine/Graphics/RenderPass/DepthPrepass.h
@@ -36,9 +36,9 @@ class DepthPrepass : public RenderPass<DepthPrepassData>
 public:
     DepthPrepass(Gfx::PGraphics graphics, Gfx::PViewport viewport, PCameraActor source);
     ~DepthPrepass();
-    virtual void beginFrame() override;
+    virtual MainJob beginFrame() override;
     virtual MainJob render() override;
-    virtual void endFrame() override;
+    virtual MainJob endFrame() override;
     virtual void publishOutputs() override;
     virtual void createRenderPass() override;
     static void modifyRenderPassMacros(Map<const char*, const char*>& defines);
diff --git a/src/Engine/Graphics/RenderPass/LightCullingPass.cpp b/src/Engine/Graphics/RenderPass/LightCullingPass.cpp
index 7bd2b10..3df6084 100644
--- a/src/Engine/Graphics/RenderPass/LightCullingPass.cpp
+++ b/src/Engine/Graphics/RenderPass/LightCullingPass.cpp
@@ -18,7 +18,7 @@ LightCullingPass::~LightCullingPass()
     
 }
 
-void LightCullingPass::beginFrame() 
+MainJob LightCullingPass::beginFrame() 
 {
     uint32_t viewportWidth = viewport->getSizeX();
     uint32_t viewportHeight = viewport->getSizeY();
@@ -75,6 +75,7 @@ void LightCullingPass::beginFrame()
     lightEnvDescriptorSet->updateBuffer(2, pointLightBuffer);
     lightEnvDescriptorSet->updateBuffer(3, numPointLightBuffer);
     lightEnvDescriptorSet->writeChanges();
+    co_return;
 }
 
 MainJob LightCullingPass::render() 
@@ -104,8 +105,9 @@ MainJob LightCullingPass::render()
     co_return;
 }
 
-void LightCullingPass::endFrame() 
+MainJob LightCullingPass::endFrame() 
 {
+    co_return;
 }
 
 void LightCullingPass::publishOutputs() 
diff --git a/src/Engine/Graphics/RenderPass/LightCullingPass.h b/src/Engine/Graphics/RenderPass/LightCullingPass.h
index 8a3baa6..1d8ea7f 100644
--- a/src/Engine/Graphics/RenderPass/LightCullingPass.h
+++ b/src/Engine/Graphics/RenderPass/LightCullingPass.h
@@ -18,9 +18,9 @@ class LightCullingPass : public RenderPass<LightCullingPassData>
 public:
     LightCullingPass(Gfx::PGraphics graphics, Gfx::PViewport viewport, PCameraActor camera);
     virtual ~LightCullingPass();
-    virtual void beginFrame() override;
+    virtual MainJob beginFrame() override;
     virtual MainJob render() override;
-    virtual void endFrame() override;
+    virtual MainJob endFrame() override;
     virtual void publishOutputs() override;
     virtual void createRenderPass() override;
     static void modifyRenderPassMacros(Map<const char*, const char*>& defines);
diff --git a/src/Engine/Graphics/RenderPass/RenderPass.h b/src/Engine/Graphics/RenderPass/RenderPass.h
index 83e4663..d87a31a 100644
--- a/src/Engine/Graphics/RenderPass/RenderPass.h
+++ b/src/Engine/Graphics/RenderPass/RenderPass.h
@@ -22,9 +22,9 @@ public:
     void updateViewFrame(RenderPassDataType viewFrame) {
         passData = std::move(viewFrame);
     }
-    virtual void beginFrame() = 0;
+    virtual MainJob beginFrame() = 0;
     virtual MainJob render() = 0;
-    virtual void endFrame() = 0;
+    virtual MainJob endFrame() = 0;
     virtual void publishOutputs() = 0;
     virtual void createRenderPass() = 0;
     void setResources(PRenderGraphResources resources) { this->resources = resources; }
diff --git a/src/Engine/Graphics/RenderPass/UIPass.cpp b/src/Engine/Graphics/RenderPass/UIPass.cpp
index f6376e3..0c59947 100644
--- a/src/Engine/Graphics/RenderPass/UIPass.cpp
+++ b/src/Engine/Graphics/RenderPass/UIPass.cpp
@@ -15,8 +15,9 @@ UIPass::~UIPass()
     
 }
 
-void UIPass::beginFrame() 
+MainJob UIPass::beginFrame() 
 {
+    co_return;
 }
 
 MainJob UIPass::render() 
@@ -31,8 +32,9 @@ MainJob UIPass::render()
     co_return;
 }
 
-void UIPass::endFrame() 
+MainJob UIPass::endFrame() 
 {
+    co_return;
 }
 
 void UIPass::publishOutputs() 
diff --git a/src/Engine/Graphics/RenderPass/UIPass.h b/src/Engine/Graphics/RenderPass/UIPass.h
index 877e9c1..f2b5248 100644
--- a/src/Engine/Graphics/RenderPass/UIPass.h
+++ b/src/Engine/Graphics/RenderPass/UIPass.h
@@ -16,9 +16,9 @@ class UIPass : public RenderPass<UIPassData>
 public:
     UIPass(Gfx::PGraphics graphics, Gfx::PViewport viewport, Gfx::PRenderTargetAttachment renderTarget);
     virtual ~UIPass();
-    virtual void beginFrame() override;
+    virtual MainJob beginFrame() override;
     virtual MainJob render() override;
-    virtual void endFrame() override;
+    virtual MainJob endFrame() override;
     virtual void publishOutputs() override;
     virtual void createRenderPass() override;
 private:
diff --git a/src/Engine/Graphics/Vulkan/VulkanDescriptorSets.cpp b/src/Engine/Graphics/Vulkan/VulkanDescriptorSets.cpp
index bc1ef85..c54466e 100644
--- a/src/Engine/Graphics/Vulkan/VulkanDescriptorSets.cpp
+++ b/src/Engine/Graphics/Vulkan/VulkanDescriptorSets.cpp
@@ -236,7 +236,7 @@ DescriptorAllocator::DescriptorAllocator(PGraphics graphics, DescriptorLayout &l
 {
 	for(uint32 i = 0; i < cachedHandles.size(); ++i)
 	{
-		cachedHandles[i] = new DescriptorSet(graphics, this);
+		cachedHandles[i] = nullptr;
 	}
 
 	uint32 perTypeSizes[VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT]; // TODO: FIX ENUM
@@ -280,6 +280,10 @@ void DescriptorAllocator::allocateDescriptorSet(Gfx::PDescriptorSet &descriptorS
 
 	for(uint32 setIndex = 0; setIndex < cachedHandles.size(); ++setIndex)
 	{
+		if(cachedHandles[setIndex] == nullptr)
+		{
+			cachedHandles[setIndex] = new DescriptorSet(graphics, this);
+		}
 		if(cachedHandles[setIndex]->isCurrentlyBound() || cachedHandles[setIndex]->isCurrentlyInUse())
 		{
 			// Currently in use, skip
@@ -308,6 +312,10 @@ void DescriptorAllocator::reset()
 {
 	for(uint32 i = 0; i < cachedHandles.size(); ++i)
 	{
+		if(cachedHandles[i] == nullptr)
+		{
+			return;
+		}
 		cachedHandles[i]->free();
 	}
 }
\ No newline at end of file
diff --git a/src/Engine/Graphics/Vulkan/VulkanDescriptorSets.h b/src/Engine/Graphics/Vulkan/VulkanDescriptorSets.h
index 382ba44..0272f82 100644
--- a/src/Engine/Graphics/Vulkan/VulkanDescriptorSets.h
+++ b/src/Engine/Graphics/Vulkan/VulkanDescriptorSets.h
@@ -142,7 +142,7 @@ public:
 private:
     PGraphics graphics;
     DescriptorLayout &layout;
-    const static int maxSets = 512;
+    const static int maxSets = 64;
     StaticArray<PDescriptorSet, maxSets> cachedHandles;
     VkDescriptorPool poolHandle;
 };
diff --git a/src/Engine/ThreadPool.cpp b/src/Engine/ThreadPool.cpp
index 57d14b3..05ceb98 100644
--- a/src/Engine/ThreadPool.cpp
+++ b/src/Engine/ThreadPool.cpp
@@ -3,6 +3,7 @@
 
 using namespace Seele;
 
+
 Event::Event()
     : flag(new std::atomic_bool()) 
 {}
diff --git a/src/Engine/ThreadPool.h b/src/Engine/ThreadPool.h
index a756f09..1fcaaaa 100644
--- a/src/Engine/ThreadPool.h
+++ b/src/Engine/ThreadPool.h
@@ -3,6 +3,7 @@
 #include <coroutine>
 #include "MinimalEngine.h"
 #include "Containers/List.h"
+#include "Concepts.h"
 
 namespace Seele
 {
@@ -10,12 +11,14 @@ extern class ThreadPool& getGlobalThreadPool();
 
 template<bool MainJob>
 struct JobBase;
+struct Event;
+static std::atomic_uint64_t globalCounter;
 template<bool MainJob>
 struct JobPromiseBase
 {
     JobBase<MainJob> get_return_object() noexcept;
 
-    inline auto initial_suspend() const noexcept;
+    inline auto initial_suspend() noexcept;
     inline auto final_suspend() const noexcept;
 
     void return_void() noexcept {}
@@ -23,7 +26,9 @@ struct JobPromiseBase
         std::cerr << "Unhandled exception" << std::endl;
         exit(1);
     };
-    std::coroutine_handle<> continuation;
+    std::coroutine_handle<> continuation = std::noop_coroutine();
+    uint64 id;
+    Event finishedEvent;
 };
 
 struct Event
@@ -57,9 +62,7 @@ private:
     friend class ThreadPool;
 };
 
-
-static std::atomic_uint64_t globalCounter;
-template<bool MainJob>
+template<bool MainJob = false>
 struct JobBase
 {
 public:
@@ -67,16 +70,18 @@ public:
     
     explicit JobBase()
         : id(-1)
-    {}
-    explicit JobBase(std::coroutine_handle<promise_type> handle)
+    {
+    }
+    explicit JobBase(std::coroutine_handle<promise_type> handle, uint64 id, Event finishedEvent)
         : handle(handle)
-        , id(globalCounter++)
-        , event(std::format("Job {}", id))
+        , event(std::move(finishedEvent))
+        , id(id)
     {
     }
     JobBase(const JobBase & rhs) = delete;
     JobBase(JobBase&& rhs)
         : handle(std::move(rhs.handle))
+        , event(rhs.event)
         , id(std::move(rhs.id))
     {
         rhs.id = -1;
@@ -86,6 +91,7 @@ public:
     {
         if(handle && handle.done()) 
         {
+            std::cout << "Destroy job " << handle.address() << std::endl;
             handle.destroy();
         }
     }
@@ -95,6 +101,7 @@ public:
         if(this != &rhs)
         {
             handle = std::move(rhs.handle);
+            event = std::move(rhs.event);
             id = std::move(rhs.id);
             rhs.id = -1;
             rhs.handle = nullptr;
@@ -105,9 +112,15 @@ public:
     {
         handle.resume();
     }
-    void then(JobBase continuation)
+    template<std::invocable Callable>
+    inline JobBase then(Callable callable)
+    {
+        return then(callable());
+    }
+    JobBase then(JobBase continuation)
     {
         handle.promise().continuation = continuation.handle;
+        return continuation;
     }
     bool done()
     {
@@ -125,12 +138,13 @@ public:
     {
         return event;
     }
+    static JobBase all() = delete;
     template<typename... Awaitable>
     static JobBase all(Awaitable... jobs)
     {
-        co_await jobs;
+        (co_await jobs, ...);
     }
-    template<typename Iterable>
+    template<iterable Iterable>
     static JobBase all(Iterable&& collection)
     {
         for(auto&& it : collection)
@@ -138,7 +152,7 @@ public:
             co_await it;
         }
     }
-    template<typename JobFunc, typename IterableParams>
+    template<std::invocable JobFunc, iterable IterableParams>
     static JobBase launchJobs(JobFunc&& func, IterableParams params)
     {
         List<JobBase> jobs;
@@ -194,23 +208,27 @@ private:
 
 
 template<bool MainJob>
-inline JobBase<MainJob> JobPromiseBase<MainJob>::get_return_object() noexcept {
-    return JobBase<MainJob>();
+inline JobBase<MainJob> JobPromiseBase<MainJob>::get_return_object() noexcept 
+{
+    id = globalCounter++;
+    return JobBase<MainJob>(std::coroutine_handle<JobPromiseBase<MainJob>>::from_promise(*this), id, finishedEvent);
 }
 
 template<bool MainJob>
-inline auto JobPromiseBase<MainJob>::initial_suspend() const noexcept
+inline auto JobPromiseBase<MainJob>::initial_suspend() noexcept
 {
     struct JobAwaitable
     {
         constexpr bool await_ready() { return false; }
         constexpr void await_suspend(std::coroutine_handle<JobPromiseBase<MainJob>> h)
         {
-            getGlobalThreadPool().addJob(std::move(JobBase<MainJob>(h)));
+            getGlobalThreadPool().addJob(std::move(JobBase<MainJob>(h, id, event)));
         }
         constexpr void await_resume() {}
+        uint64 id;
+        Event& event;
     };
-    return JobAwaitable{};
+    return JobAwaitable{id, finishedEvent};
 }
 template<bool MainJob>
 inline auto JobPromiseBase<MainJob>::final_suspend() const noexcept
@@ -230,7 +248,7 @@ inline auto JobPromiseBase<MainJob>::final_suspend() const noexcept
 template<bool MainJob>
 inline constexpr void Event::await_suspend(std::coroutine_handle<JobPromiseBase<MainJob>> h)
 {
-    getGlobalThreadPool().enqueueWaiting(*this, std::move(JobBase<MainJob>(h)));
+    getGlobalThreadPool().enqueueWaiting(*this, std::move(JobBase<MainJob>(h, h.promise().id, *this)));
 }
 
 } // namespace Seele
diff --git a/src/Engine/Window/InspectorView.cpp b/src/Engine/Window/InspectorView.cpp
index 047c08f..d9fb946 100644
--- a/src/Engine/Window/InspectorView.cpp
+++ b/src/Engine/Window/InspectorView.cpp
@@ -40,12 +40,14 @@ void InspectorView::prepareRender()
 
 MainJob InspectorView::render() 
 {
-    uiPass.beginFrame();
-    uiPass.render();
-    uiPass.endFrame();
-
-    renderFinishedEvent.raise();
-    co_return;
+    return uiPass.beginFrame()
+        .then(uiPass.render())
+        .then(uiPass.endFrame())
+        .then([=]() -> MainJob
+        {
+            renderFinishedEvent.raise();
+            co_return;
+        });
 }
 
 void InspectorView::keyCallback(KeyCode, InputAction, KeyModifier) 
diff --git a/src/Engine/Window/SceneView.cpp b/src/Engine/Window/SceneView.cpp
index c7e1e3d..145547f 100644
--- a/src/Engine/Window/SceneView.cpp
+++ b/src/Engine/Window/SceneView.cpp
@@ -84,20 +84,20 @@ void SceneView::prepareRender()
 
 MainJob SceneView::render() 
 {
-    depthPrepass.beginFrame();
-    lightCullingPass.beginFrame();
-    basePass.beginFrame();
-
-    depthPrepass.render();
-    lightCullingPass.render();
-    basePass.render();
-
-    depthPrepass.endFrame();
-    lightCullingPass.endFrame();
-    basePass.endFrame();
-
-    renderFinishedEvent.raise();
-    co_return;
+    return depthPrepass.beginFrame()
+        .then(lightCullingPass.beginFrame())
+        .then(basePass.beginFrame())
+        .then(depthPrepass.render())
+        .then(lightCullingPass.render())
+        .then(basePass.render())
+        .then(depthPrepass.endFrame())
+        .then(lightCullingPass.endFrame())
+        .then(basePass.endFrame())
+        .then([=]() -> MainJob
+        {
+            renderFinishedEvent.raise();
+            co_return;
+        });
 }
 
 void SceneView::keyCallback(KeyCode code, InputAction action, KeyModifier)
diff --git a/src/Engine/Window/View.cpp b/src/Engine/Window/View.cpp
index 6c8b339..12a0945 100644
--- a/src/Engine/Window/View.cpp
+++ b/src/Engine/Window/View.cpp
@@ -5,7 +5,10 @@
 using namespace Seele;
 
 View::View(Gfx::PGraphics graphics, PWindow window, const ViewportCreateInfo &viewportInfo, std::string name)
-	: graphics(graphics), owner(window), name(name)
+	: graphics(graphics)
+	, owner(window)
+	, name(name)
+	, renderFinishedEvent(name + "RenderFinished")
 {
 	viewport = graphics->createViewport(owner->getGfxHandle(), viewportInfo);
 }