Add ViewFlags::Sky for conditional sky/skybox rendering

Source/Editor/Viewport/EditorViewport.cs

@@ -1521,6 +1521,7 @@ namespace FlaxEditor.Viewport
             new ViewFlagOptions(ViewFlags.PointLights, "Point Lights"),
             new ViewFlagOptions(ViewFlags.SpotLights, "Spot Lights"),
             new ViewFlagOptions(ViewFlags.SkyLights, "Sky Lights"),
+            new ViewFlagOptions(ViewFlags.Sky, "Sky"),
             new ViewFlagOptions(ViewFlags.Fog, "Fog"),
             new ViewFlagOptions(ViewFlags.SpecularLight, "Specular Light"),
             new ViewFlagOptions(ViewFlags.Decals, "Decals"),

Source/Editor/Windows/EditGameWindow.cs

@@ -430,7 +430,7 @@ namespace FlaxEditor.Windows
             writer.WriteAttributeString("MovementSpeed", Viewport.MovementSpeed.ToString());
             writer.WriteAttributeString("OrthographicScale", Viewport.OrthographicScale.ToString());
             writer.WriteAttributeString("UseOrthographicProjection", Viewport.UseOrthographicProjection.ToString());
-            writer.WriteAttributeString("ViewFlags", ((long)Viewport.Task.View.Flags).ToString());
+            writer.WriteAttributeString("ViewFlags", ((ulong)Viewport.Task.View.Flags).ToString());
         }
 
         /// <inheritdoc />
@@ -463,7 +463,7 @@ namespace FlaxEditor.Windows
             if (bool.TryParse(node.GetAttribute("UseOrthographicProjection"), out value1))
                 Viewport.UseOrthographicProjection = value1;
 
-            if (long.TryParse(node.GetAttribute("ViewFlags"), out long value3))
+            if (ulong.TryParse(node.GetAttribute("ViewFlags"), out ulong value3))
                 Viewport.Task.ViewFlags = (ViewFlags)value3;
 
             // Reset view flags if opening with different engine version (ViewFlags enum could be modified)

Source/Engine/Graphics/Enums.h

@@ -879,7 +879,7 @@ API_ENUM() enum class ViewMode
 /// <summary>
 /// Frame rendering flags used to switch between graphics features.
 /// </summary>
-API_ENUM(Attributes="Flags") enum class ViewFlags : int64
+API_ENUM(Attributes="Flags") enum class ViewFlags : uint64
 {
     /// <summary>
     /// Nothing.
@@ -1016,20 +1016,25 @@ API_ENUM(Attributes="Flags") enum class ViewFlags : int64
     /// </summary>
     GlobalSDF = 1 << 25,
 
+    /// <summary>
+    /// Shows/hides the Sky/Skybox rendering.
+    /// </summary>
+    Sky = 1 << 26,
+
     /// <summary>
     /// Default flags for Game.
     /// </summary>
-    DefaultGame = Reflections | DepthOfField | Fog | Decals | MotionBlur | SSR | AO | GI | DirectionalLights | PointLights | SpotLights | SkyLights | Shadows | SpecularLight | AntiAliasing | CustomPostProcess | Bloom | ToneMapping | EyeAdaptation | CameraArtifacts | LensFlares | ContactShadows | GlobalSDF,
+    DefaultGame = Reflections | DepthOfField | Fog | Decals | MotionBlur | SSR | AO | GI | DirectionalLights | PointLights | SpotLights | SkyLights | Shadows | SpecularLight | AntiAliasing | CustomPostProcess | Bloom | ToneMapping | EyeAdaptation | CameraArtifacts | LensFlares | ContactShadows | GlobalSDF | Sky,
 
     /// <summary>
     /// Default flags for Editor.
     /// </summary>
-    DefaultEditor = Reflections | Fog | Decals | DebugDraw | SSR | AO | GI | DirectionalLights | PointLights | SpotLights | SkyLights | Shadows | SpecularLight | AntiAliasing | CustomPostProcess | Bloom | ToneMapping | EyeAdaptation | CameraArtifacts | LensFlares | EditorSprites | ContactShadows | GlobalSDF,
+    DefaultEditor = Reflections | Fog | Decals | DebugDraw | SSR | AO | GI | DirectionalLights | PointLights | SpotLights | SkyLights | Shadows | SpecularLight | AntiAliasing | CustomPostProcess | Bloom | ToneMapping | EyeAdaptation | CameraArtifacts | LensFlares | EditorSprites | ContactShadows | GlobalSDF | Sky,
 
     /// <summary>
     /// Default flags for materials/models previews generating.
     /// </summary>
-    DefaultAssetPreview = Reflections | Decals | DirectionalLights | PointLights | SpotLights | SkyLights | SpecularLight | AntiAliasing | Bloom | ToneMapping | EyeAdaptation | CameraArtifacts | LensFlares | ContactShadows,
+    DefaultAssetPreview = Reflections | Decals | DirectionalLights | PointLights | SpotLights | SkyLights | SpecularLight | AntiAliasing | Bloom | ToneMapping | EyeAdaptation | CameraArtifacts | LensFlares | ContactShadows | Sky,
 };
 
 DECLARE_ENUM_OPERATORS(ViewFlags);

Source/Engine/Level/Actors/Sky.cpp

@@ -81,7 +81,7 @@ void Sky::InitConfig(AtmosphericFogData& config) const
 
 void Sky::Draw(RenderContext& renderContext)
 {
-    if (HasContentLoaded())
+    if (HasContentLoaded() && EnumHasAnyFlags(renderContext.View.Flags, ViewFlags::Sky))
     {
         // Ensure to have pipeline state cache created
         if (_psSky == nullptr || _psFog == nullptr)

Source/Engine/Level/Actors/Skybox.cpp

@@ -40,7 +40,7 @@ void Skybox::Draw(RenderContext& renderContext)
         setupProxy();
         isReady = _proxyMaterial && _proxyMaterial->IsReady();
     }
-    if (isReady)
+    if (isReady && EnumHasAnyFlags(renderContext.View.Flags, ViewFlags::Sky))
     {
         renderContext.List->Sky = this;
     }

Source/Engine/Renderer/GBufferPass.cpp

@@ -218,7 +218,7 @@ void GBufferPass::Fill(RenderContext& renderContext, GPUTexture* lightBuffer)
     renderContext.List->RunCustomPostFxPass(context, renderContext, PostProcessEffectLocation::AfterGBufferPass, lightBuffer, nullTexture);
 
     // Draw sky
-    if (renderContext.List->Sky && _skyModel && _skyModel->CanBeRendered())
+    if (renderContext.List->Sky && _skyModel && _skyModel->CanBeRendered() && EnumHasAnyFlags(renderContext.View.Flags, ViewFlags::Sky))
     {
         PROFILE_GPU_CPU_NAMED("Sky");
         context->SetRenderTarget(*renderContext.Buffers->DepthBuffer, ToSpan(targetBuffers, ARRAY_COUNT(targetBuffers)));
@@ -283,7 +283,7 @@ public:
 GPUTextureView* GBufferPass::RenderSkybox(RenderContext& renderContext, GPUContext* context)
 {
     GPUTextureView* result = nullptr;
-    if (renderContext.List->Sky && _skyModel && _skyModel->CanBeRendered())
+    if (renderContext.List->Sky && _skyModel && _skyModel->CanBeRendered() && EnumHasAnyFlags(renderContext.View.Flags, ViewFlags::Sky))
     {
         // Initialize skybox texture
         auto& skyboxData = *renderContext.Buffers->GetCustomBuffer<SkyboxCustomBuffer>(TEXT("Skybox"));
@@ -430,7 +430,7 @@ void GBufferPass::DrawDecals(RenderContext& renderContext, GPUTextureView* light
 {
     // Skip if no decals to render
     auto& decals = renderContext.List->Decals;
-    if (decals.IsEmpty() || _boxModel == nullptr || !_boxModel->CanBeRendered())
+    if (decals.IsEmpty() || _boxModel == nullptr || !_boxModel->CanBeRendered() || EnumHasNoneFlags(renderContext.View.Flags, ViewFlags::Decals))
         return;
 
     PROFILE_GPU_CPU("Decals");

Source/Engine/Renderer/ProbesRenderer.cpp

@@ -268,6 +268,7 @@ bool ProbesRenderer::Init()
             ViewFlags::SkyLights |
             ViewFlags::Decals |
             ViewFlags::Shadows |
+            ViewFlags::Sky |
             ViewFlags::Fog;
     view.Mode = ViewMode::NoPostFx;
     view.IsOfflinePass = true;

Source/Engine/ShadowsOfMordor/Builder.cpp

@@ -448,6 +448,7 @@ bool ShadowsOfMordor::Builder::initResources()
             ViewFlags::DirectionalLights |
             ViewFlags::PointLights |
             ViewFlags::SpotLights |
+            ViewFlags::Sky |
             ViewFlags::Shadows |
             ViewFlags::Decals |
             ViewFlags::SkyLights |