Add support for baking env probes in cooked game

Source/Editor/Cooker/Steps/DeployDataStep.cpp

@@ -64,6 +64,7 @@ bool DeployDataStep::Perform(CookingData& data)
     data.AddRootEngineAsset(TEXT("Shaders/Histogram"));
     data.AddRootEngineAsset(TEXT("Shaders/Lights"));
     data.AddRootEngineAsset(TEXT("Shaders/MultiScaler"));
+    data.AddRootEngineAsset(TEXT("Shaders/ProbesFilter"));
     data.AddRootEngineAsset(TEXT("Shaders/PostProcessing"));
     data.AddRootEngineAsset(TEXT("Shaders/MotionBlur"));
     data.AddRootEngineAsset(TEXT("Shaders/BitonicSort"));

Source/Engine/Content/Assets/Texture.cpp

@@ -176,33 +176,7 @@ bool Texture::LoadFile(const StringView& path, bool generateMips)
     }
 
     auto initData = New<InitData>();
-
-    initData->Format = textureData.Format;
-    initData->Width = textureData.Width;
-    initData->Height = textureData.Height;
-    initData->ArraySize = 1;
-    if (generateMips)
-        initData->Mips.Resize(MipLevelsCount(textureData.Width, textureData.Height));
-    else
-        initData->Mips.Resize(textureData.GetMipLevels());
-
-    for (int32 mipIndex = 0; mipIndex < textureData.GetMipLevels(); mipIndex++)
-    {
-        auto& mip = initData->Mips[mipIndex];
-        auto& data = *textureData.GetData(0, mipIndex);
-
-        mip.Data.Copy(data.Data);
-        mip.RowPitch = data.RowPitch;
-        mip.SlicePitch = data.DepthPitch;
-    }
-
-    if (generateMips)
-    {
-        for (int32 mipIndex = textureData.GetMipLevels(); mipIndex < initData->Mips.Count(); mipIndex++)
-        {
-            initData->GenerateMip(mipIndex, true);
-        }
-    }
+    initData->FromTextureData(textureData, generateMips);
 
     return Init(initData);
 }

Source/Engine/Graphics/Textures/TextureBase.cpp

@@ -886,3 +886,43 @@ bool TextureBase::InitData::GenerateMip(int32 mipIndex, bool linear)
 
     return false;
 }
+
+void TextureBase::InitData::FromTextureData(const TextureData& textureData, bool generateMips)
+{
+    Format = textureData.Format;
+    Width = textureData.Width;
+    Height = textureData.Height;
+    ArraySize = textureData.GetArraySize();
+    if (generateMips)
+        Mips.Resize(MipLevelsCount(textureData.Width, textureData.Height));
+    else
+        Mips.Resize(textureData.GetMipLevels());
+
+    for (int32 mipIndex = 0; mipIndex < textureData.GetMipLevels(); mipIndex++)
+    {
+        auto& mip = Mips[mipIndex];
+        auto& data = *textureData.GetData(0, mipIndex);
+        mip.Data.Allocate(data.Data.Length() * ArraySize);
+        mip.RowPitch = data.RowPitch;
+        mip.SlicePitch = data.Data.Length();
+
+        byte* dst = mip.Data.Get();
+        for (int32 arrayIndex = 0; arrayIndex < ArraySize; arrayIndex++)
+        {
+            auto& d = *textureData.GetData(arrayIndex, mipIndex);
+            ASSERT(data.RowPitch == d.RowPitch);
+            ASSERT(data.Data.Length() == d.Data.Length());
+            Platform::MemoryCopy(dst, d.Data.Get(), d.Data.Length());
+            dst += data.Data.Length();
+            ASSERT((int32)(dst - mip.Data.Get()) <= mip.Data.Length());
+        }
+    }
+
+    if (generateMips)
+    {
+        for (int32 mipIndex = textureData.GetMipLevels(); mipIndex < Mips.Count(); mipIndex++)
+        {
+            GenerateMip(mipIndex, true);
+        }
+    }
+}

Source/Engine/Graphics/Textures/TextureBase.h

@@ -45,6 +45,8 @@ API_CLASS(Abstract, NoSpawn) class FLAXENGINE_API TextureBase : public BinaryAss
         /// <param name="linear">True if use linear filer, otherwise point filtering.</param>
         /// <returns>True if failed, otherwise false.</returns>
         bool GenerateMip(int32 mipIndex, bool linear = false);
+
+        void FromTextureData(const TextureData& textureData, bool generateMips = false);
     };
 
 protected:

Source/Engine/Level/Actors/EnvironmentProbe.cpp

@@ -84,16 +84,12 @@ void EnvironmentProbe::SetCustomProbe(CubeTexture* probe)
 
 void EnvironmentProbe::Bake(float timeout)
 {
-#if COMPILE_WITH_PROBES_BAKING
     ProbesRenderer::Bake(this, timeout);
-#else
-    LOG(Warning, "Baking probes is not supported.");
-#endif
 }
 
 void EnvironmentProbe::SetProbeData(GPUContext* context, GPUTexture* data)
 {
-    // Remove any probe asset
+    // Remove probe asset (if used)
     _isUsingCustomProbe = false;
     _probe = nullptr;
 
@@ -128,11 +124,14 @@ void EnvironmentProbe::SetProbeData(TextureData& data)
         _probe = nullptr;
     }
 
-    Guid id = Guid::New();
+    // Remove probe texture (if used)
+    SAFE_DELETE_GPU_RESOURCE(_probeTexture);
+
 #if COMPILE_WITH_ASSETS_IMPORTER
     // Create asset file
     const String path = GetScene()->GetDataFolderPath() / TEXT("EnvProbes/") / GetID().ToString(Guid::FormatType::N) + ASSET_FILES_EXTENSION_WITH_DOT;
     AssetInfo info;
+    Guid id = Guid::New();
     if (FileSystem::FileExists(path) && Content::GetAssetInfo(path, info))
         id = info.ID;
     if (AssetsImportingManager::Create(AssetsImportingManager::CreateCubeTextureTag, path, id, &data))
@@ -141,14 +140,6 @@ void EnvironmentProbe::SetProbeData(TextureData& data)
         return;
     }
 
-    // Remove probe texture
-    SAFE_DELETE_GPU_RESOURCE(_probeTexture);
-#else
-    // TODO: create or reuse virtual texture and use it
-    LOG(Error, "Changing probes at runtime in game is not supported.");
-    return;
-#endif
-
     // Check if has loaded probe and it has different ID
     if (_probe && _probe->GetID() != id)
     {
@@ -159,6 +150,19 @@ void EnvironmentProbe::SetProbeData(TextureData& data)
 
     // Link probe texture
     _probe = Content::LoadAsync<CubeTexture>(id);
+#else
+    // Create virtual asset
+    if (!_probe || !_probe->IsVirtual())
+        _probe = Content::CreateVirtualAsset<CubeTexture>();
+    auto initData = New<TextureBase::InitData>();
+    initData->FromTextureData(data);
+    if (_probe->Init(initData))
+    {
+        Delete(initData);
+        LOG(Error, "Cannot load generated env probe!");
+        return;
+    }
+#endif
 }
 
 void EnvironmentProbe::UpdateBounds()
@@ -175,10 +179,8 @@ void EnvironmentProbe::Draw(RenderContext& renderContext)
         (renderContext.View.Flags & ViewFlags::Reflections) != 0 &&
         renderContext.View.Pass & DrawPass::GBuffer)
     {
-#if COMPILE_WITH_PROBES_BAKING
         if (UpdateMode == ProbeUpdateMode::Realtime)
             ProbesRenderer::Bake(this, 0.0f);
-#endif
         if ((_probe != nullptr && _probe->IsLoaded()) || _probeTexture != nullptr)
         {
             renderContext.List->EnvironmentProbes.Add(this);

Source/Engine/Level/Actors/SkyLight.cpp

@@ -48,11 +48,7 @@ CubeTexture* SkyLight::GetSource() const
 
 void SkyLight::Bake(float timeout)
 {
-#if COMPILE_WITH_PROBES_BAKING
     ProbesRenderer::Bake(this, timeout);
-#else
-    LOG(Warning, "Baking probes is not supported.");
-#endif
 }
 
 void SkyLight::SetProbeData(TextureData& data)

Source/Engine/Renderer/ProbesRenderer.cpp

@@ -1,7 +1,5 @@
 // Copyright (c) 2012-2022 Wojciech Figat. All rights reserved.
 
-#if COMPILE_WITH_PROBES_BAKING
-
 #include "ProbesRenderer.h"
 #include "Renderer.h"
 #include "ReflectionsPass.h"
@@ -602,5 +600,3 @@ void ProbesRenderer::onRender(RenderTask* task, GPUContext* context)
         _current.Type = EntryType::Invalid;
     }
 }
-
-#endif

Source/Engine/Renderer/ProbesRenderer.h

@@ -2,8 +2,6 @@
 
 #pragma once
 
-#if COMPILE_WITH_PROBES_BAKING
-
 #include "Engine/Scripting/ScriptingObjectReference.h"
 #include "Engine/Level/Actor.h"
 
@@ -107,5 +105,3 @@ private:
 
     static void onRender(RenderTask* task, GPUContext* context);
 };
-
-#endif

Source/Engine/Renderer/Renderer.Build.cs

@@ -15,10 +15,5 @@ public class Renderer : EngineModule
 
         options.PrivateDependencies.Add("Graphics");
         options.PrivateDependencies.Add("Content");
-
-        if (options.Target.IsEditor)
-        {
-            options.PublicDefinitions.Add("COMPILE_WITH_PROBES_BAKING");
-        }
     }
 }