Added a few missing else's

FSR3UnityPlugin.cpp

@@ -251,7 +251,7 @@ extern "C" bool UNITY_INTERFACE_EXPORT UNITY_INTERFACE_API AMDUP_InitApi()
         ffxFsr2GetInterfaceDX11(&s_Fsr2Interface, device, scratchBuffer, scratchBufferSize);
         return true;
     }
-    if (s_GraphicsD3D12 != nullptr)
+    else if (s_GraphicsD3D12 != nullptr)
     {
         ID3D12Device* device = s_GraphicsD3D12->GetDevice();
         if (device == nullptr)
@@ -665,7 +665,7 @@ static void UNITY_INTERFACE_API OnSetTextureEvent(int eventID, void* data)
         {
             textureDesc->image = (intptr_t)s_GraphicsD3D11->TextureFromNativeTexture((UnityTextureID)params->textureID);
         }
-        if (s_GraphicsD3D12 != nullptr)
+        else if (s_GraphicsD3D12 != nullptr)
         {
             textureDesc->image = (intptr_t)s_GraphicsD3D12->TextureFromNativeTexture((UnityTextureID)params->textureID);
         }