diff --git a/CMakeSettings.json b/CMakeSettings.json
index 38f2e2c..a95c7d1 100644
--- a/CMakeSettings.json
+++ b/CMakeSettings.json
@@ -5,7 +5,7 @@
       "buildCommandArgs": "",
       "ctestCommandArgs": "",
       "configurationType": "Debug",
-      "generator": "Ninja Multi-Config",
+      "generator": "Ninja",
       "intelliSenseMode": "windows-msvc-x64",
       "inheritEnvironments": [ "msvc_x64" ],
       "cmakeCommandArgs": "-DCMAKE_DEBUG_POSTFIX=\"\" -DCMAKE_PLATFORM=x64",
diff --git a/MinecraftClone/Assets/arial.asset b/MinecraftClone/Assets/arial.asset
deleted file mode 100644
index 2a8a2bd..0000000
Binary files a/MinecraftClone/Assets/arial.asset and /dev/null differ
diff --git a/res/shaders/TextPass.slang b/res/shaders/TextPass.slang
index a3144b0..cd2642f 100644
--- a/res/shaders/TextPass.slang
+++ b/res/shaders/TextPass.slang
@@ -1,23 +1,5 @@
 import Common;
 
-struct GlyphInstanceData
-{
-    float x;
-    float y;
-    float z;
-    float width;
-    float height;
-    uint glyphIndex;
-};
-
-struct TextData
-{
-    StructuredBuffer<GlyphInstanceData> glyphs;
-    SamplerState glyphSampler;
-    Texture2D<float> glyphTextures[];
-};
-ParameterBlock<TextData> pText;
-
 struct VertexInput
 {
     uint vertexId : SV_VertexID;
@@ -31,6 +13,24 @@ struct VertexOutput
     uint glyphIndex : GLYPHINDEX;
 };
 
+struct GlyphInstanceData
+{
+    float x;
+    float y;
+    float z;
+    float width;
+    float height;
+    uint glyphIndex;
+};
+struct TextData
+{
+    StructuredBuffer<GlyphInstanceData> glyphs;
+    SamplerState glyphSampler;
+    Texture2D<float> glyphTextures[];
+};
+ParameterBlock<TextData> pText;
+
+
 [shader("vertex")]
 VertexOutput vertexMain(VertexInput input)
 {
diff --git a/res/shaders/lib/LightEnv.slang b/res/shaders/lib/LightEnv.slang
index ae2fdcf..dd8fd7d 100644
--- a/res/shaders/lib/LightEnv.slang
+++ b/res/shaders/lib/LightEnv.slang
@@ -70,6 +70,10 @@ struct LightEnv
 layout(set=3)
 ParameterBlock<LightEnv> pLightEnv;
 
+[Differentiable]
+float polynomial(float a, float b, float c, float x) {
+    return a * x * x + b * x + c;
+}
 
 interface IBRDF
 {
diff --git a/src/Editor/Asset/EnvironmentLoader.cpp b/src/Editor/Asset/EnvironmentLoader.cpp
index be4a2bc..93efd20 100644
--- a/src/Editor/Asset/EnvironmentLoader.cpp
+++ b/src/Editor/Asset/EnvironmentLoader.cpp
@@ -205,6 +205,5 @@ void EnvironmentLoader::import(EnvironmentImportArgs args, PEnvironmentMapAsset
 
     asset->skybox = std::move(cubeMap);
     asset->irradianceMap = std::move(convolutedMap);
-    asset->specularMap = std::move(cubeMap);
     graphics->waitDeviceIdle();
 }
diff --git a/src/Editor/main.cpp b/src/Editor/main.cpp
index a527235..67bf009 100644
--- a/src/Editor/main.cpp
+++ b/src/Editor/main.cpp
@@ -1,10 +1,10 @@
 #include "Asset/AssetImporter.h"
 #include "Asset/AssetRegistry.h"
+#include "Asset/EnvironmentLoader.h"
 #include "Asset/FontLoader.h"
 #include "Asset/MaterialLoader.h"
 #include "Asset/MeshLoader.h"
 #include "Asset/TextureLoader.h"
-#include "Asset/EnvironmentLoader.h"
 #include "Graphics/Initializer.h"
 #ifdef __APPLE__
 #include "Graphics/Metal/Graphics.h"
@@ -50,7 +50,11 @@ int main() {
         AssetImporter::importEnvironmentMap(EnvironmentImportArgs{
             .filePath = sourcePath / "import" / "textures" / "newport_loft.hdr",
         });
-        
+        AssetImporter::importTexture(TextureImportArgs{
+            .filePath = sourcePath / "import" / "textures" / "grass_block_side.png",
+            .importPath = "",
+        });
+
         getThreadPool().waitIdle();
         vd->commitMeshes();
         WindowCreateInfo mainWindowInfo = {
diff --git a/src/Engine/Containers/Tree.h b/src/Engine/Containers/Tree.h
index 253feb5..a54b5f9 100644
--- a/src/Engine/Containers/Tree.h
+++ b/src/Engine/Containers/Tree.h
@@ -61,13 +61,15 @@ template <typename KeyType, typename NodeData, typename KeyFun, typename Compare
         constexpr IteratorBase& operator++() {
             // if current node has no right subtree
             if (node->rightChild == nullptr) {
-                Node* temp = node;
-                node = node->parent;
-                // walk up hierarchy until we were the left subtree of any parent
-                // this means that that parent is the correct next element
-                while (node->rightChild == temp) {
-                    temp = node;
+                if (node->parent != nullptr) {
+                    Node* temp = node;
                     node = node->parent;
+                    // walk up hierarchy until we were the left subtree of any parent
+                    // this means that that parent is the correct next element
+                    while (node->rightChild == temp) {
+                        temp = node;
+                        node = node->parent;
+                    }
                 }
             } else {
                 // if there is a right subtree, descend there
@@ -153,6 +155,7 @@ template <typename KeyType, typename NodeData, typename KeyFun, typename Compare
     constexpr Tree(Tree&& other) noexcept
         : alloc(std::move(other.alloc)), root(std::move(other.root)), pseudoRoot(std::move(other.pseudoRoot)), iteratorsDirty(true),
           _size(std::move(other._size)), comp(std::move(other.comp)) {
+        pseudoRoot.setLeftChild(root);
         other._size = 0;
     }
     constexpr ~Tree() noexcept { clear(); }
@@ -165,6 +168,7 @@ template <typename KeyType, typename NodeData, typename KeyFun, typename Compare
             for (const auto& elem : other) {
                 insert(elem);
             }
+            pseudoRoot.setLeftChild(root);
             markIteratorsDirty();
         }
         return *this;
@@ -180,6 +184,7 @@ template <typename KeyType, typename NodeData, typename KeyFun, typename Compare
             _size = std::move(other._size);
             comp = std::move(other.comp);
             other._size = 0;
+            pseudoRoot.setLeftChild(root);
             markIteratorsDirty();
         }
         return *this;
diff --git a/src/Engine/Graphics/Metal/RenderPass.mm b/src/Engine/Graphics/Metal/RenderPass.mm
index 4f04c38..108a8e3 100644
--- a/src/Engine/Graphics/Metal/RenderPass.mm
+++ b/src/Engine/Graphics/Metal/RenderPass.mm
@@ -25,7 +25,6 @@ RenderPass::RenderPass(PGraphics graphics, Gfx::RenderTargetLayout _layout, Arra
         desc->setStoreAction(cast(color.getStoreOp()));
         desc->setLevel(0);
         if (!layout.resolveAttachments.empty()) {
-            const auto& resolve = layout.resolveAttachments[i];
             desc->setResolveLevel(0);
             // store multisampled attachment as well
             if(color.getStoreOp() == Gfx::SE_ATTACHMENT_STORE_OP_STORE) {
@@ -33,7 +32,6 @@ RenderPass::RenderPass(PGraphics graphics, Gfx::RenderTargetLayout _layout, Arra
             } else {
                 desc->setStoreAction(MTL::StoreActionMultisampleResolve);
             }
-            desc->setResolveTexture(resolve.getTexture().cast<TextureBase>()->getImage());
         }
     }
     if (layout.depthAttachment.getTexture() != nullptr) {
@@ -49,7 +47,6 @@ RenderPass::RenderPass(PGraphics graphics, Gfx::RenderTargetLayout _layout, Arra
             } else {
                 depth->setStoreAction(MTL::StoreActionMultisampleResolve);
             }
-            depth->setResolveTexture(layout.depthResolveAttachment.getTexture().cast<TextureBase>()->getImage());
         }
     }
     // TODO: stencil
@@ -61,9 +58,16 @@ void RenderPass::updateRenderPass() {
         const auto& color = layout.colorAttachments[i];
         auto desc = renderPass->colorAttachments()->object(i);
         desc->setTexture(color.getTexture().cast<TextureBase>()->getImage());
+        if (!layout.resolveAttachments.empty()) {
+            const auto& resolve = layout.resolveAttachments[i];
+            desc->setResolveTexture(resolve.getTexture().cast<TextureBase>()->getImage());
+        }
     }
     if (layout.depthAttachment.getTexture() != nullptr) {
         auto depth = renderPass->depthAttachment();
         depth->setTexture(layout.depthAttachment.getTexture().cast<TextureBase>()->getImage());
+        if (layout.depthResolveAttachment.getTexture() != nullptr) {
+            depth->setResolveTexture(layout.depthResolveAttachment.getTexture().cast<TextureBase>()->getImage());
+        }
     }
 }
diff --git a/src/Engine/Graphics/Metal/Window.h b/src/Engine/Graphics/Metal/Window.h
index 8218489..30f52f9 100644
--- a/src/Engine/Graphics/Metal/Window.h
+++ b/src/Engine/Graphics/Metal/Window.h
@@ -52,6 +52,7 @@ class Window : public Gfx::Window {
     CA::MetalLayer* metalLayer;
     CA::MetalDrawable* drawable;
     OTexture2D backBuffer;
+    OEvent renderDoneSemaphore;
 
     std::function<void(KeyCode, InputAction, KeyModifier)> keyCallback;
     std::function<void(double, double)> mouseMoveCallback;
diff --git a/src/Engine/Graphics/Metal/Window.mm b/src/Engine/Graphics/Metal/Window.mm
index 2645508..48712a6 100644
--- a/src/Engine/Graphics/Metal/Window.mm
+++ b/src/Engine/Graphics/Metal/Window.mm
@@ -92,9 +92,6 @@ Window::Window(PGraphics graphics, const WindowCreateInfo& createInfo) : graphic
     [[metalWindow contentView] setLayer:(__bridge id)metalLayer];
     [[metalWindow contentView] setWantsLayer:YES];
     framebufferFormat = Gfx::SE_FORMAT_B8G8R8A8_SRGB;
-    
-    drawable = metalLayer->nextDrawable();
-    createBackBuffer();
 }
 
 Window::~Window() { glfwDestroyWindow(static_cast<GLFWwindow*>(windowHandle)); }
@@ -104,6 +101,8 @@ void Window::show() { glfwShowWindow(windowHandle); }
 void Window::pollInput() { glfwPollEvents(); }
 
 void Window::beginFrame() {
+    drawable = metalLayer->nextDrawable();
+    createBackBuffer();
     static double start = glfwGetTime();
     double end = glfwGetTime();
     currentFrameDelta = end - start;
@@ -112,13 +111,10 @@ void Window::beginFrame() {
 }
 
 void Window::endFrame() {
-    graphics->waitDeviceIdle();
-    graphics->getQueue()->getCommands()->present(drawable);
     graphics->getQueue()->submitCommands();
+    graphics->getQueue()->getCommands()->present(drawable);
     currentFrameIndex++;
     drawable->release();
-    drawable = metalLayer->nextDrawable();
-    createBackBuffer();
 }
 
 void Window::onWindowCloseEvent() {}
@@ -181,6 +177,7 @@ void Window::createBackBuffer() {
                                    .samples = static_cast<uint32>(buf->sampleCount()),
                                },
                                buf);
+    renderDoneSemaphore = new Event(graphics);
 }
 
 Viewport::Viewport(PWindow owner, const ViewportCreateInfo& createInfo) : Gfx::Viewport(owner, createInfo) {
diff --git a/src/Engine/Graphics/RenderPass/BasePass.cpp b/src/Engine/Graphics/RenderPass/BasePass.cpp
index 1ffd5f9..e1b0828 100644
--- a/src/Engine/Graphics/RenderPass/BasePass.cpp
+++ b/src/Engine/Graphics/RenderPass/BasePass.cpp
@@ -79,8 +79,8 @@ BasePass::BasePass(Gfx::PGraphics graphics, PScene scene) : RenderPass(graphics)
                                                                       });
     }
     skybox = Seele::Component::Skybox{
-        .day = scene->getLightEnvironment()->getEnvironmentMap()->getIrradianceMap(),
-        .night = scene->getLightEnvironment()->getEnvironmentMap()->getIrradianceMap(),
+        .day = scene->getLightEnvironment()->getEnvironmentMap()->getSkybox(),
+        .night = scene->getLightEnvironment()->getEnvironmentMap()->getSkybox(),
         .fogColor = Vector(0.1, 0.1, 0.8),
         .blendFactor = 0,
     };
@@ -157,8 +157,7 @@ void BasePass::render() {
         vertexData->getInstanceDataSet()->updateBuffer(VertexData::CULLINGDATA_NAME, 0, cullingBuffer);
         vertexData->getInstanceDataSet()->writeChanges();
         permutation.setVertexData(vertexData->getTypeName());
-        const auto& materials = vertexData->getMaterialData();
-        for (const auto& materialData : materials) {
+        for (const auto& materialData : vertexData->getMaterialData()) {
             // material not used for any active meshes, skip
             if (materialData.instances.size() == 0)
                 continue;
diff --git a/src/Engine/Graphics/slang-compile.cpp b/src/Engine/Graphics/slang-compile.cpp
index 06d23f2..dd355e2 100644
--- a/src/Engine/Graphics/slang-compile.cpp
+++ b/src/Engine/Graphics/slang-compile.cpp
@@ -139,11 +139,9 @@ void Seele::beginCompilation(const ShaderCompilationInfo& info, SlangCompileTarg
 
     slang::ProgramLayout* signature = specializedComponent->getLayout(0, diagnostics.writeRef());
     CHECK_DIAGNOSTICS();
-    //std::cout << info.name << std::endl;
     for (uint32 i = 0; i < signature->getParameterCount(); ++i) {
         auto param = signature->getParameterByIndex(i);
         layout->addMapping(param->getName(), param->getBindingIndex());
-        //std::cout << param->getName() << ": " << param->getBindingIndex() << std::endl;
     }
 
     // workaround
diff --git a/src/Engine/Material/ShaderExpression.h b/src/Engine/Material/ShaderExpression.h
index 4dc81bf..f79232c 100644
--- a/src/Engine/Material/ShaderExpression.h
+++ b/src/Engine/Material/ShaderExpression.h
@@ -4,7 +4,6 @@
 #include "Math/Math.h"
 #include "MinimalEngine.h"
 
-
 namespace Seele {
 enum class ExpressionType {
     UNKNOWN,
@@ -184,6 +183,9 @@ struct SwizzleExpression : public ShaderExpression {
     StaticArray<int32, 4> comp = {-1, -1, -1, -1};
     SwizzleExpression() {}
     SwizzleExpression(StaticArray<int32, 4> comp) : comp(std::move(comp)) {}
+    SwizzleExpression(std::string key, std::string target, StaticArray<int32, 4> comp) : ShaderExpression(key) {
+        inputs["target"].source = target;
+    }
     virtual ~SwizzleExpression() {}
     virtual uint64 getIdentifier() const override { return IDENTIFIER; }
     virtual std::string evaluate(Map<std::string, std::string>& varState) const override;
@@ -194,6 +196,11 @@ DEFINE_REF(SwizzleExpression)
 struct SampleExpression : public ShaderExpression {
     static constexpr uint64 IDENTIFIER = 0x16;
     SampleExpression() {}
+    SampleExpression(std::string key, std::string texture, std::string sampler, std::string texCoords) : ShaderExpression(key) {
+        inputs["texture"].source = texture;
+        inputs["sampler"].source = sampler;
+        inputs["texCoords"].source = texCoords;
+    }
     virtual ~SampleExpression() {}
     virtual uint64 getIdentifier() const override { return IDENTIFIER; }
     virtual std::string evaluate(Map<std::string, std::string>& varState) const override;
@@ -205,8 +212,6 @@ DEFINE_REF(SampleExpression)
 struct MaterialNode {
     std::string profile;
     Map<std::string, std::string> variables;
-    MaterialNode() {}
-    ~MaterialNode() {}
     void save(ArchiveBuffer& buffer) const;
     void load(ArchiveBuffer& buffer);
 };
diff --git a/src/Engine/System/MeshUpdater.cpp b/src/Engine/System/MeshUpdater.cpp
index 748fea0..ea716e6 100644
--- a/src/Engine/System/MeshUpdater.cpp
+++ b/src/Engine/System/MeshUpdater.cpp
@@ -9,7 +9,8 @@ MeshUpdater::MeshUpdater(PScene scene) : ComponentSystem<Component::Transform, C
 
 MeshUpdater::~MeshUpdater() {}
 
-void MeshUpdater::update(entt::entity, Component::Transform& transform, Component::Mesh& comp) {
+void MeshUpdater::update(entt::entity id, Component::Transform& transform, Component::Mesh& comp) {
+    scene->accessComponent<Component::Camera>(id);
     if (comp.meshletOffsets.empty()) {
         for (uint32 i = 0; i < comp.asset->meshes.size(); ++i) {
             comp.meshletOffsets.add(comp.asset->meshes[i]->vertexData->addCullingMapping(comp.asset->meshes[i]->id));
diff --git a/test.py b/test.py
index ae7340f..353c3da 100644
--- a/test.py
+++ b/test.py
@@ -16,3 +16,11 @@ print(positions)
 print(indices)
     
 
+# Create a tensor with attached grads from a numpy array
+# Note: We pass zero=True to initialize the grads to zero on allocation
+x = spy.Tensor.numpy(device, np.array([1, 2, 3, 4], dtype=np.float32)).with_grads(zero=True)
+
+# Evaluate the polynomial and ask for a tensor back
+# Expecting result = 2x^2 + 8x - 1
+result: spy.Tensor = module.polynomial(a=2, b=8, c=-1, x=x, _result='tensor')
+print(result.to_numpy())
\ No newline at end of file