diff --git a/aster/buffer.cpp b/aster/buffer.cpp
index 176f897..92746c3 100644
--- a/aster/buffer.cpp
+++ b/aster/buffer.cpp
@@ -21,6 +21,7 @@ void
 Buffer::Allocate(const Device *device, usize size, vk::BufferUsageFlags bufferUsage,
                  VmaAllocationCreateFlags allocationFlags, VmaMemoryUsage memoryUsage, cstr name)
 {
+    assert(!IsValid());
     assert(size <= SIZE_MASK);
 
     vk::BufferCreateInfo bufferCreateInfo = {
@@ -104,7 +105,7 @@ StorageBuffer::Init(const Device *device, usize size, bool hostVisible, cstr nam
     else
     {
         Allocate(device, size, vk::BufferUsageFlagBits::eStorageBuffer | vk::BufferUsageFlagBits::eTransferDst,
-                 VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT, VMA_MEMORY_USAGE_AUTO, name);
+                 0, VMA_MEMORY_USAGE_AUTO, name);
     }
 }
 
@@ -112,14 +113,14 @@ void
 VertexBuffer::Init(const Device *device, usize size, cstr name)
 {
     Allocate(device, size, vk::BufferUsageFlagBits::eVertexBuffer | vk::BufferUsageFlagBits::eTransferDst,
-             VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT, VMA_MEMORY_USAGE_AUTO, name);
+             0, VMA_MEMORY_USAGE_AUTO, name);
 }
 
 void
 IndexBuffer::Init(const Device *device, usize size, cstr name)
 {
     Allocate(device, size, vk::BufferUsageFlagBits::eIndexBuffer | vk::BufferUsageFlagBits::eTransferDst,
-             VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT, VMA_MEMORY_USAGE_AUTO, name);
+             0, VMA_MEMORY_USAGE_AUTO, name);
 }
 
 void
diff --git a/aster/config.h b/aster/config.h
index 846fc6e..44b5bb4 100644
--- a/aster/config.h
+++ b/aster/config.h
@@ -8,6 +8,7 @@
 #define GLM_FORCE_RADIANS
 #define GLM_FORCE_DEPTH_ZERO_TO_ONE
 #define GLM_FORCE_QUATERNIONS_XYZW
+#define GLM_ENABLE_EXPERIMENTAL
 
 #define GLFW_INCLUDE_VULKAN
 #define VULKAN_HPP_DISPATCH_LOADER_DYNAMIC 1
diff --git a/aster/constants.h b/aster/constants.h
index 0889612..f6525b2 100644
--- a/aster/constants.h
+++ b/aster/constants.h
@@ -11,6 +11,7 @@
 #include <cstdio>
 
 #include <glm/glm.hpp>
+#include <glm/gtc/quaternion.hpp>
 
 using c8 = char;
 using u8 = uint8_t;
@@ -57,22 +58,26 @@ Recast(TFrom &&in)
     return reinterpret_cast<TType>(std::forward<TFrom>(in));
 }
 
-constexpr f32 operator""_deg(long double degrees)
+constexpr f32
+operator""_deg(long double degrees)
 {
     return glm::radians<f32>(Cast<f32>(degrees));
 }
 
-constexpr f32 operator""_deg(unsigned long long int degrees)
+constexpr f32
+operator""_deg(unsigned long long int degrees)
 {
     return glm::radians<f32>(Cast<f32>(degrees));
 }
 
-constexpr f32 operator""_rad(long double rads)
+constexpr f32
+operator""_rad(long double rads)
 {
     return Cast<f32>(rads);
 }
 
-constexpr f32 operator""_rad(unsigned long long int rads)
+constexpr f32
+operator""_rad(unsigned long long int rads)
 {
     return Cast<f32>(rads);
 }
@@ -110,6 +115,36 @@ constexpr Version VERSION = {
     .m_Patch = 0,
 };
 
+constexpr u32
+Kilobyte(const u32 in)
+{
+    return in * 1024;
+}
+
+constexpr usize
+Kilobyte(const usize in)
+{
+    return in * 1024;
+}
+
+constexpr u32
+Megabyte(const u32 in)
+{
+    return in * 1024 * 1024;
+}
+
+constexpr usize
+Megabyte(const usize in)
+{
+    return in * 1024 * 1024;
+}
+
+constexpr usize
+Gigabyte(const usize in)
+{
+    return in * 1024 * 1024 * 1024;
+}
+
 template <typename T>
 constexpr T MaxValue = std::numeric_limits<T>::max();
 
diff --git a/aster/device.cpp b/aster/device.cpp
index 87837dd..8d67dba 100644
--- a/aster/device.cpp
+++ b/aster/device.cpp
@@ -142,6 +142,14 @@ Device::DumpPipelineCache() const
     return pipelineCacheData;
 }
 
+void
+Device::WaitIdle() const
+{
+    auto deviceIdleResult = m_Device.waitIdle();
+    ERROR_IF(Failed(deviceIdleResult), "Device Idling Failed. Cause: {}", deviceIdleResult)
+    THEN_ABORT(deviceIdleResult);
+}
+
 Device::Device(Device &&other) noexcept
     : m_Name(std::move(other.m_Name))
     , m_PhysicalDevice(Take(other.m_PhysicalDevice))
diff --git a/aster/device.h b/aster/device.h
index 373bc87..f3ad2d2 100644
--- a/aster/device.h
+++ b/aster/device.h
@@ -37,6 +37,8 @@ struct Device final
 
     [[nodiscard]] eastl::vector<u8> DumpPipelineCache() const;
 
+    void WaitIdle() const;
+
     // Ctor/Dtor
     Device(const Context *context, PhysicalDevice *physicalDevice, Features *enabledFeatures,
            const eastl::vector<QueueAllocation> &queueAllocations, NameString &&name);
diff --git a/samples/00_util/CMakeLists.txt b/samples/00_util/CMakeLists.txt
index fdd2ffa..c122983 100644
--- a/samples/00_util/CMakeLists.txt
+++ b/samples/00_util/CMakeLists.txt
@@ -9,8 +9,6 @@ add_library(util_helper STATIC
         helpers.cpp
         frame.cpp
         frame.h
-        gpu_resource_manager.cpp
-        gpu_resource_manager.h
         gui.cpp
         gui.h)
 
diff --git a/samples/01_triangle/triangle.cpp b/samples/01_triangle/triangle.cpp
index 53798db..980a5e5 100644
--- a/samples/01_triangle/triangle.cpp
+++ b/samples/01_triangle/triangle.cpp
@@ -331,8 +331,7 @@ main(int, char **)
         frameIndex = (frameIndex + 1) % MAX_FRAMES_IN_FLIGHT;
     }
 
-    auto result = device.m_Device.waitIdle();
-    ERROR_IF(Failed(result), "Wait idle failed. Cause: {}", result);
+    device.WaitIdle();
 
     device.m_Device.destroy(copyPool, nullptr);
     vbo.Destroy(&device);
diff --git a/samples/02_box/box.cpp b/samples/02_box/box.cpp
index 9e2a041..1951dc5 100644
--- a/samples/02_box/box.cpp
+++ b/samples/02_box/box.cpp
@@ -531,7 +531,7 @@ main(int, char **)
         currentFrame->Present(commandQueue, &swapchain, &window);
     }
 
-    AbortIfFailed(device.m_Device.waitIdle());
+    device.WaitIdle();
 
     for (auto &depthImage : depthImages)
     {
diff --git a/samples/03_model_render/CMakeLists.txt b/samples/03_model_render/CMakeLists.txt
index 9a0faa9..a6940c5 100644
--- a/samples/03_model_render/CMakeLists.txt
+++ b/samples/03_model_render/CMakeLists.txt
@@ -12,6 +12,8 @@ add_executable(model_render model_render.cpp
         asset_loader.h
         light_manager.cpp 
         light_manager.h
+        gpu_resource_manager.cpp
+        gpu_resource_manager.h
         nodes.cpp
         nodes.h
         ibl_helpers.cpp
diff --git a/samples/00_util/gpu_resource_manager.cpp b/samples/03_model_render/gpu_resource_manager.cpp
similarity index 100%
rename from samples/00_util/gpu_resource_manager.cpp
rename to samples/03_model_render/gpu_resource_manager.cpp
diff --git a/samples/00_util/gpu_resource_manager.h b/samples/03_model_render/gpu_resource_manager.h
similarity index 100%
rename from samples/00_util/gpu_resource_manager.h
rename to samples/03_model_render/gpu_resource_manager.h
diff --git a/samples/03_model_render/model_render.cpp b/samples/03_model_render/model_render.cpp
index ca5f7ef..7b6fd1a 100644
--- a/samples/03_model_render/model_render.cpp
+++ b/samples/03_model_render/model_render.cpp
@@ -133,8 +133,8 @@ main(int, char **)
 {
     MIN_LOG_LEVEL(Logger::LogType::eInfo);
 
-    Context context = {"ModelRender [WIP]", VERSION};
-    Window window = {"ModelRender [WIP] (Aster)", &context, {INIT_WIDTH, INIT_HEIGHT}};
+    Context context = {"ModelRender", VERSION};
+    Window window = {"ModelRender (Aster)", &context, {INIT_WIDTH, INIT_HEIGHT}};
 
     PhysicalDevices physicalDevices = {&window, &context};
     PhysicalDevice deviceToUse = FindSuitableDevice(physicalDevices);
@@ -689,7 +689,7 @@ main(int, char **)
         currentFrame->Present(graphicsQueue, &swapchain, &window);
     }
 
-    AbortIfFailed(device.m_Device.waitIdle());
+    device.WaitIdle();
 
     environment.Destroy(&resourceManager);