Examples: DirectX12: Reduced number of frame in flight from 3 to 2 in provided example, to reduce latency.

docs/CHANGELOG.txt

@@ -44,6 +44,8 @@ Breaking changes:
 Other changes:
 
 - ImDrawList: texture baked storage for thick line reduced from ~64x64 to ~32x32. (#3245)
+- Examples: DirectX12: Reduced number of frame in flight from 3 to 2 in
+  provided example, to reduce latency.
 - Backends: DirectX12: Texture upload use the command queue provided in
   ImGui_ImplDX12_InitInfo instead of creating its own.
 

examples/example_win32_directx12/main.cpp

@@ -23,8 +23,8 @@
 #endif
 
 // Config for example app
-static const int APP_NUM_FRAMES_IN_FLIGHT = 3;
-static const int APP_NUM_BACK_BUFFERS = 3;
+static const int APP_NUM_FRAMES_IN_FLIGHT = 2;
+static const int APP_NUM_BACK_BUFFERS = 2;
 static const int APP_SRV_HEAP_SIZE = 64;
 
 struct FrameContext