diff --git a/Videos/cortex_20260619_085526.mp4 b/Videos/cortex_20260619_085526.mp4
new file mode 100644
index 0000000..862f496
Binary files /dev/null and b/Videos/cortex_20260619_085526.mp4 differ
diff --git a/src/Engine.Graphics.Vulkan/VulkanRenderer.cs b/src/Engine.Graphics.Vulkan/VulkanRenderer.cs
index 310167f..b2b666e 100644
--- a/src/Engine.Graphics.Vulkan/VulkanRenderer.cs
+++ b/src/Engine.Graphics.Vulkan/VulkanRenderer.cs
@@ -110,7 +110,7 @@ public sealed unsafe class VulkanRenderer : IRenderer, Engine.Graphics.IScreensh
         // Transition: ColorAttachmentOptimal → TransferSrcOptimal
         TransitionImageLayout(cmd, _swapchain.Images[imageIndex],
             VkImageLayout.ColorAttachmentOptimal, VkImageLayout.TransferSrcOptimal,
-            0x400, 0x100, 0x10000, 0x2000);
+            0x400, 0x100, 0x10000, 0x1000);
 
         // Copy image to buffer
         var region = new VkBufferImageCopyRegion
@@ -135,7 +135,7 @@ public sealed unsafe class VulkanRenderer : IRenderer, Engine.Graphics.IScreensh
         // Transition back: TransferSrcOptimal → ColorAttachmentOptimal
         TransitionImageLayout(cmd, _swapchain.Images[imageIndex],
             VkImageLayout.TransferSrcOptimal, VkImageLayout.ColorAttachmentOptimal,
-            0x10000, 0x2000, 0x400, 0x100);
+            0x10000, 0x1000, 0x400, 0x100);
 
         return null; // Data will be read next frame after GPU completes
     }