From a67ff38ed5870f0d4d8cbf058d56b8f4a9c8a1b8 Mon Sep 17 00:00:00 2001
From: David Svez <daveranan@gmail.com>
Date: Sun, 2 Aug 2026 20:45:36 -0500
Subject: [PATCH] Fallback when DirectX debug layer is unavailable

---
 .../GraphicsDevice/DirectX/DX11/GPUDeviceDX11.cpp  | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/Source/Engine/GraphicsDevice/DirectX/DX11/GPUDeviceDX11.cpp b/Source/Engine/GraphicsDevice/DirectX/DX11/GPUDeviceDX11.cpp
index 78750042c..728c12731 100644
--- a/Source/Engine/GraphicsDevice/DirectX/DX11/GPUDeviceDX11.cpp
+++ b/Source/Engine/GraphicsDevice/DirectX/DX11/GPUDeviceDX11.cpp
@@ -549,7 +549,19 @@ bool GPUDeviceDX11::Init()
     else
 #endif
     {
-        VALIDATE_DIRECTX_CALL(D3D11CreateDevice(adapter, D3D_DRIVER_TYPE_UNKNOWN, NULL, flags, &targetFeatureLevel, 1, D3D11_SDK_VERSION, &_device, &createdFeatureLevel, &_imContext));
+        HRESULT createResult = D3D11CreateDevice(adapter, D3D_DRIVER_TYPE_UNKNOWN, NULL, flags, &targetFeatureLevel, 1, D3D11_SDK_VERSION, &_device, &createdFeatureLevel, &_imContext);
+#if GPU_ENABLE_DIAGNOSTICS
+        if (createResult == DXGI_ERROR_SDK_COMPONENT_MISSING)
+        {
+            // The Direct3D debug layer is an optional Windows component. Development builds
+            // should remain usable when it is not installed, just like adapter probing above.
+            flags &= ~D3D11_CREATE_DEVICE_DEBUG;
+            createResult = D3D11CreateDevice(adapter, D3D_DRIVER_TYPE_UNKNOWN, NULL, flags, &targetFeatureLevel, 1, D3D11_SDK_VERSION, &_device, &createdFeatureLevel, &_imContext);
+            if (SUCCEEDED(createResult))
+                LOG(Warning, "Direct3D SDK debug layers were requested, but not available. Continuing without them.");
+        }
+#endif
+        VALIDATE_DIRECTX_CALL(createResult);
     }
     if (!_device || !_imContext)
         return true;