372 lines
10 KiB
C++
372 lines
10 KiB
C++
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// Copyright 2020 Phyronnaz
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#include "VoxelRender/MaterialCollections/VoxelInstancedMaterialCollection.h"
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#include "VoxelUtilities/VoxelMaterialUtilities.h"
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#include "VoxelUniqueError.h"
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#include "VoxelMessages.h"
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#include "Materials/MaterialInstanceDynamic.h"
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#include "Materials/MaterialInstanceConstant.h"
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#if WITH_EDITOR
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void UVoxelInstancedMaterialCollectionTemplates::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
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{
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Super::PostEditChangeProperty(PropertyChangedEvent);
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if (PropertyChangedEvent.MemberProperty)
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{
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if (Template)
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{
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const auto CreateTemplate = [&](int32 Num)
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{
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auto* MaterialInstance = NewObject<UMaterialInstanceConstant>(this);
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MaterialInstance->SetParentEditorOnly(Template);
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FStaticParameterSet StaticParameters;
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MaterialInstance->GetStaticParameterValues(StaticParameters);
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const auto SetStaticParameter = [&](FName Name, bool bValue)
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{
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bool bFound = false;
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for (auto& StaticSwitchParameter : StaticParameters.EditorOnly.StaticSwitchParameters)
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{
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if (StaticSwitchParameter.ParameterInfo.Name == Name)
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{
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// Note: we allow duplicates
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bFound = true;
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StaticSwitchParameter.bOverride = true;
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StaticSwitchParameter.Value = bValue;
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}
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}
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if (!bFound)
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{
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FVoxelMessages::Warning("Static parameter " + Name.ToString() + " not found in " + Template->GetName(), this);
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}
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};
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SetStaticParameter("Num Blends > 1", Num > 1);
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SetStaticParameter("Num Blends > 2", Num > 2);
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SetStaticParameter("Num Blends > 3", Num > 3);
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SetStaticParameter("Num Blends > 4", Num > 4);
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SetStaticParameter("Num Blends > 5", Num > 5);
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MaterialInstance->UpdateStaticPermutation(StaticParameters);
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MaterialInstance->PostEditChange();
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return MaterialInstance;
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};
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Template1x = CreateTemplate(1);
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Template2x = CreateTemplate(2);
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Template3x = CreateTemplate(3);
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Template4x = CreateTemplate(4);
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Template5x = CreateTemplate(5);
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Template6x = CreateTemplate(6);
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}
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else
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{
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Template1x = nullptr;
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Template2x = nullptr;
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Template3x = nullptr;
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Template4x = nullptr;
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Template5x = nullptr;
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Template6x = nullptr;
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}
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}
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}
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#endif
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///////////////////////////////////////////////////////////////////////////////
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UVoxelInstancedMaterialCollection::UVoxelInstancedMaterialCollection()
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{
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Redirects.Add(" Sides" );
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Redirects.Add(" Bottom" );
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}
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int32 UVoxelInstancedMaterialCollection::GetMaxMaterialIndices() const
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{
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if (MaxMaterialsToBlendAtOnce < 1 || MaxMaterialsToBlendAtOnce > 6)
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{
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FVoxelMessages::Error<EVoxelShowNotification::Hide>("MaxMaterialsToBlendAtOnce should be between 1 and 6", this);
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return 1;
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}
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if (!Templates)
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{
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FVoxelMessages::Error<EVoxelShowNotification::Hide>("Missing Templates!", this);
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return 1;
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}
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if (!Templates->Template1x)
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{
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FVoxelMessages::Error<EVoxelShowNotification::Hide>("Template 1x is null!", this);
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}
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if (MaxMaterialsToBlendAtOnce > 1 && !Templates->Template2x)
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{
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FVoxelMessages::Error<EVoxelShowNotification::Hide>("Template 2x is null!", this);
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}
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if (MaxMaterialsToBlendAtOnce > 2 && !Templates->Template3x)
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{
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FVoxelMessages::Error<EVoxelShowNotification::Hide>("Template 3x is null!", this);
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}
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if (MaxMaterialsToBlendAtOnce > 3 && !Templates->Template4x)
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{
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FVoxelMessages::Error<EVoxelShowNotification::Hide>("Template 4x is null!", this);
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}
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if (MaxMaterialsToBlendAtOnce > 4 && !Templates->Template5x)
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{
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FVoxelMessages::Error<EVoxelShowNotification::Hide>("Template 5x is null!", this);
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}
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if (MaxMaterialsToBlendAtOnce > 5 && !Templates->Template6x)
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{
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FVoxelMessages::Error<EVoxelShowNotification::Hide>("Template 6x is null!", this);
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}
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TSet<int32> Indices;
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for (auto& Layer : Layers)
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{
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bool bIsAlreadyInSet;
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Indices.Add(Layer.LayerIndex, &bIsAlreadyInSet);
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if (bIsAlreadyInSet)
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{
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FVoxelMessages::Error<EVoxelShowNotification::Hide>(FString::Printf(TEXT("Index %d is used multiple times!"), Layer.LayerIndex), this);
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}
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}
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return MaxMaterialsToBlendAtOnce;
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}
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int32 UVoxelInstancedMaterialCollection::GetMaterialIndex(FName Name) const
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{
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for (auto& Layer : Layers)
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{
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if (Layer.LayerMaterialInstance && Layer.LayerMaterialInstance->GetFName() == Name)
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{
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return Layer.LayerIndex;
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}
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}
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return -1;
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}
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TArray<UVoxelMaterialCollectionBase::FMaterialInfo> UVoxelInstancedMaterialCollection::GetMaterials() const
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{
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TArray<FMaterialInfo> Result;
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for (const auto& Layer : Layers)
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{
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Result.Add(FMaterialInfo{ Layer.LayerIndex, FName(), Layer.LayerMaterialInstance });
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}
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return Result;
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}
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UMaterialInterface* UVoxelInstancedMaterialCollection::GetIndexMaterial(uint8 Index) const
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{
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for (const auto& Layer : Layers)
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{
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if (Layer.LayerIndex == Index)
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{
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return Layer.LayerMaterialInstance;
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}
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}
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return nullptr;
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}
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UMaterialInterface* UVoxelInstancedMaterialCollection::GetVoxelMaterial_NotCached(const FVoxelMaterialIndices& Indices, uint64 UniqueIdForErrors) const
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{
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VOXEL_FUNCTION_COUNTER();
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// Will happen if the material collection is changed at runtime to a one with a different MaxMaterialsToBlendAtOnce
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if (Indices.NumIndices > MaxMaterialsToBlendAtOnce || !ensure(MaxMaterialsToBlendAtOnce > 0))
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{
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return nullptr;
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}
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for (int32 Index = 0; Index < Indices.NumIndices; Index++)
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{
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const int32 SortedIndex = Indices.SortedIndices[Index];
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auto* Layer = Layers.FindByKey(SortedIndex);
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if (!Layer || !Layer->LayerMaterialInstance)
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{
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static TVoxelUniqueError<uint8> UniqueError;
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FVoxelMessages::CondError<EVoxelShowNotification::Hide>(
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UniqueError(UniqueIdForErrors, Index),
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FString::Printf(TEXT("No layer with index %d, or layer has no material instance!"), SortedIndex),
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this);
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return nullptr;
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}
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}
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if (!Templates)
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{
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return nullptr;
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}
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const auto GetTemplate = [&]()
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{
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switch (Indices.NumIndices)
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{
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default: ensure(false);
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case 1: return Templates->Template1x;
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case 2: return Templates->Template2x;
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case 3: return Templates->Template3x;
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case 4: return Templates->Template4x;
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case 5: return Templates->Template5x;
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case 6: return Templates->Template6x;
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}
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};
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UMaterialInterface* const Template = GetTemplate();
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if (!Template)
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{
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return nullptr;
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}
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auto* DynamicInstance = UMaterialInstanceDynamic::Create(Template, nullptr);
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if (!ensure(DynamicInstance)) return nullptr;
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const auto SetParameters = [&](UMaterialInstance* Instance, const FString& Prefix)
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{
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const auto GetNewName = [&](FName Name, const FString& Suffix)
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{
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return FName(*(Prefix + Name.ToString() + Suffix));
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};
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TSet<FName> OverridenParameterNames;
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for (const auto& Parameter : Instance->ScalarParameterValues)
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{
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const FName Name = GetNewName(Parameter.ParameterInfo.Name, {});
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DynamicInstance->SetScalarParameterValue(Name, Parameter.ParameterValue);
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OverridenParameterNames.Add(Name);
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}
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for (const auto& Parameter : Instance->VectorParameterValues)
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{
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const FName Name = GetNewName(Parameter.ParameterInfo.Name, {});
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DynamicInstance->SetVectorParameterValue(Name, Parameter.ParameterValue);
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OverridenParameterNames.Add(Name);
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}
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for (const auto& Parameter : Instance->TextureParameterValues)
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{
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const FName Name = GetNewName(Parameter.ParameterInfo.Name, {});
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DynamicInstance->SetTextureParameterValue(Name, Parameter.ParameterValue);
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OverridenParameterNames.Add(Name);
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}
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for (const auto& Parameter : Instance->FontParameterValues)
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{
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const FName Name = GetNewName(Parameter.ParameterInfo.Name, {});
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DynamicInstance->SetFontParameterValue(Name, Parameter.FontValue, Parameter.FontPage);
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OverridenParameterNames.Add(Name);
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}
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for (const FString& Redirect : Redirects)
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{
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for (const auto& Parameter : Instance->ScalarParameterValues)
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{
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const FName Name = GetNewName(Parameter.ParameterInfo.Name, Redirect);
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if (!OverridenParameterNames.Contains(Name))
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{
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DynamicInstance->SetScalarParameterValue(Name, Parameter.ParameterValue);
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}
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}
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for (const auto& Parameter : Instance->VectorParameterValues)
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{
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const FName Name = GetNewName(Parameter.ParameterInfo.Name, Redirect);
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if (!OverridenParameterNames.Contains(Name))
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{
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DynamicInstance->SetVectorParameterValue(Name, Parameter.ParameterValue);
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}
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}
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for (const auto& Parameter : Instance->TextureParameterValues)
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{
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const FName Name = GetNewName(Parameter.ParameterInfo.Name, Redirect);
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if (!OverridenParameterNames.Contains(Name))
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{
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DynamicInstance->SetTextureParameterValue(Name, Parameter.ParameterValue);
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}
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}
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for (const auto& Parameter : Instance->FontParameterValues)
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{
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const FName Name = GetNewName(Parameter.ParameterInfo.Name, Redirect);
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if (!OverridenParameterNames.Contains(Name))
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{
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DynamicInstance->SetFontParameterValue(Name, Parameter.FontValue, Parameter.FontPage);
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}
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}
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}
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};
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for (int32 Index = 0; Index < Indices.NumIndices; Index++)
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{
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UMaterialInstance* Instance = Layers.FindByKey(Indices.SortedIndices[Index])->LayerMaterialInstance;
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SetParameters(Instance, ParametersPrefix + FString::Printf(TEXT("%d:"), Index));
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}
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return DynamicInstance;
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}
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#if WITH_EDITOR
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void UVoxelInstancedMaterialCollection::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
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{
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Super::PostEditChangeProperty(PropertyChangedEvent);
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if (PropertyChangedEvent.ChangeType != EPropertyChangeType::Interactive)
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{
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TSet<int32> Indices;
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for (auto& Layer : Layers)
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{
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bool bIsAlreadyInSet = true;
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while (bIsAlreadyInSet)
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{
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Indices.Add(Layer.LayerIndex, &bIsAlreadyInSet);
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if (bIsAlreadyInSet) Layer.LayerIndex++;
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}
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}
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}
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}
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#endif
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///////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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void UVoxelInstancedMaterialCollectionInstance::InitializeCollection()
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{
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Super::InitializeCollection();
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if (LayersSource)
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{
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Layers = LayersSource->Layers;
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}
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}
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void UVoxelInstancedMaterialCollectionInstance::PostLoad()
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{
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Super::PostLoad();
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if (LayersSource)
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{
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Layers = LayersSource->Layers;
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}
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}
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#if WITH_EDITOR
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void UVoxelInstancedMaterialCollectionInstance::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
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{
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Super::PostEditChangeProperty(PropertyChangedEvent);
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if (LayersSource)
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{
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Layers = LayersSource->Layers;
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}
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}
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bool UVoxelInstancedMaterialCollectionInstance::CanEditChange(const FProperty* InProperty) const
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{
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if (InProperty && InProperty->GetFName() == GET_MEMBER_NAME_STATIC(UVoxelInstancedMaterialCollectionInstance, Layers))
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{
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return false;
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}
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return Super::CanEditChange(InProperty);
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}
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#endif
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