fix Cave framework

Config/DefaultEngine.ini

@@ -5,7 +5,7 @@ GameDefaultMap=/Game/Maps/GansuCAVEMaster.GansuCAVEMaster
 GameInstanceClass=/NewCAVESystem/GameplayFramework/CAVECore/CAVEGameInstance.CAVEGameInstance_C
 
 [/Script/WindowsTargetPlatform.WindowsTargetSettings]
-DefaultGraphicsRHI=DefaultGraphicsRHI_DX11
+DefaultGraphicsRHI=DefaultGraphicsRHI_DX12
 -D3D12TargetedShaderFormats=PCD3D_SM5
 +D3D12TargetedShaderFormats=PCD3D_SM6
 -D3D11TargetedShaderFormats=PCD3D_SM5
@@ -43,8 +43,8 @@ AppliedDefaultGraphicsPerformance=Maximum
 [/Script/Engine.RendererSettings]
 r.GenerateMeshDistanceFields=False
 r.DynamicGlobalIlluminationMethod=0
-r.ReflectionMethod=2
-r.Shadow.Virtual.Enable=0
+r.ReflectionMethod=0
+r.Shadow.Virtual.Enable=1
 r.DefaultFeature.AutoExposure.ExtendDefaultLuminanceRange=True
 r.DefaultFeature.AutoExposure=False
 r.VirtualTextures=True
@@ -53,7 +53,7 @@ r.vt.FeedbackFactor=48
 r.DefaultFeature.MotionBlur=False
 r.AntiAliasingMethod=2
 r.MSAACount=1
-r.Lumen.TranslucencyReflections.FrontLayer.EnableForProject=False
+r.Lumen.TranslucencyReflections.FrontLayer.EnableForProject=True
 r.CustomDepth=3
 r.DefaultFeature.Bloom=False