Trying to fix metal shader compilation

src/Engine/Graphics/Metal/Window.h

@@ -51,6 +51,7 @@ private:
   CAMetalLayer* metalLayer;
   CA::MetalDrawable* drawable;
   OTexture2D backBuffer;
+  MTL::CaptureDescriptor* capture = nullptr;
 
   std::function<void(KeyCode, InputAction, KeyModifier)> keyCallback;
   std::function<void(double, double)> mouseMoveCallback;