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815 lines
30 KiB
C++
815 lines
30 KiB
C++
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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#include "LandscapeEditorPrivatePCH.h"
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#include "ObjectTools.h"
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#include "LandscapeEdMode.h"
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#include "ScopedTransaction.h"
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#include "Landscape/LandscapeEdit.h"
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#include "Landscape/LandscapeRender.h"
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#include "Landscape/LandscapeDataAccess.h"
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#include "Landscape/LandscapeSplineProxies.h"
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#include "LandscapeEditorModule.h"
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#include "Editor/PropertyEditor/Public/PropertyEditorModule.h"
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#include "LandscapeEdModeTools.h"
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const int32 FNoiseParameter::Permutations[256] =
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{
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151, 160, 137, 91, 90, 15,
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131, 13, 201, 95, 96, 53, 194, 233, 7, 225, 140, 36, 103, 30, 69, 142, 8, 99, 37, 240, 21, 10, 23,
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190, 6, 148, 247, 120, 234, 75, 0, 26, 197, 62, 94, 252, 219, 203, 117, 35, 11, 32, 57, 177, 33,
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88, 237, 149, 56, 87, 174, 20, 125, 136, 171, 168, 68, 175, 74, 165, 71, 134, 139, 48, 27, 166,
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77, 146, 158, 231, 83, 111, 229, 122, 60, 211, 133, 230, 220, 105, 92, 41, 55, 46, 245, 40, 244,
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102, 143, 54, 65, 25, 63, 161, 1, 216, 80, 73, 209, 76, 132, 187, 208, 89, 18, 169, 200, 196,
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135, 130, 116, 188, 159, 86, 164, 100, 109, 198, 173, 186, 3, 64, 52, 217, 226, 250, 124, 123,
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5, 202, 38, 147, 118, 126, 255, 82, 85, 212, 207, 206, 59, 227, 47, 16, 58, 17, 182, 189, 28, 42,
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223, 183, 170, 213, 119, 248, 152, 2, 44, 154, 163, 70, 221, 153, 101, 155, 167, 43, 172, 9,
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129, 22, 39, 253, 19, 98, 108, 110, 79, 113, 224, 232, 178, 185, 112, 104, 218, 246, 97, 228,
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251, 34, 242, 193, 238, 210, 144, 12, 191, 179, 162, 241, 81, 51, 145, 235, 249, 14, 239, 107,
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49, 192, 214, 31, 181, 199, 106, 157, 184, 84, 204, 176, 115, 121, 50, 45, 127, 4, 150, 254,
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138, 236, 205, 93, 222, 114, 67, 29, 24, 72, 243, 141, 128, 195, 78, 66, 215, 61, 156, 180
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};
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//
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// FLandscapeToolPaintBase
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//
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template<class TToolTarget, class TStrokeClass>
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class FLandscapeToolPaintBase : public FLandscapeToolBase<TStrokeClass>
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{
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public:
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FLandscapeToolPaintBase(FEdModeLandscape* InEdMode)
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: FLandscapeToolBase<TStrokeClass>(InEdMode)
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{}
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virtual ELandscapeToolTargetTypeMask::Type GetSupportedTargetTypes() override
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{
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return ELandscapeToolTargetTypeMask::FromType(TToolTarget::TargetType);
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}
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};
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template<class ToolTarget>
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class FLandscapeToolStrokePaintBase
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{
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public:
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FLandscapeToolStrokePaintBase(FEdModeLandscape* InEdMode, const FLandscapeToolTarget& InTarget)
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: Cache(InTarget)
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, LandscapeInfo(InTarget.LandscapeInfo.Get())
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{
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}
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virtual void Apply(FEditorViewportClient* ViewportClient, FLandscapeBrush* Brush, const ULandscapeEditorObject* UISettings, const TArray<FLandscapeToolMousePosition>& MousePositions) = 0;
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protected:
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typename ToolTarget::CacheClass Cache;
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ULandscapeInfo* LandscapeInfo;
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};
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//
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// FLandscapeToolPaint
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//
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#define DATA_AT(Array, X, Y) ((Array)[(X-X1) + (Y-Y1)*(1+X2-X1)])
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template<class ToolTarget>
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class FLandscapeToolStrokePaint : public FLandscapeToolStrokePaintBase<ToolTarget>
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{
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TMap<FIntPoint, float> TotalInfluenceMap; // amount of time and weight the brush has spent on each vertex.
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public:
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FLandscapeToolStrokePaint(FEdModeLandscape* InEdMode, const FLandscapeToolTarget& InTarget)
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: FLandscapeToolStrokePaintBase<ToolTarget>(InEdMode, InTarget)
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{}
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virtual ~FLandscapeToolStrokePaint() {}
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virtual void Apply(FEditorViewportClient* ViewportClient, FLandscapeBrush* Brush, const ULandscapeEditorObject* UISettings, const TArray<FLandscapeToolMousePosition>& MousePositions) override
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{
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// Get list of verts to update
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TMap<FIntPoint, float> BrushInfo;
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int32 X1, Y1, X2, Y2;
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if (!Brush->ApplyBrush(MousePositions, BrushInfo, X1, Y1, X2, Y2) || MousePositions.Num() == 0)
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{
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return;
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}
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// Tablet pressure
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float Pressure = ViewportClient->Viewport->IsPenActive() ? ViewportClient->Viewport->GetTabletPressure() : 1.f;
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// expand the area by one vertex in each direction to ensure normals are calculated correctly
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X1 -= 1;
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Y1 -= 1;
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X2 += 1;
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Y2 += 1;
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this->Cache.CacheData(X1, Y1, X2, Y2);
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// Invert when holding Shift
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bool bInvert = MousePositions[MousePositions.Num() - 1].bShiftDown;
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//UE_LOG(LogLandscape, Log, TEXT("bInvert = %d"), bInvert);
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bool bUseClayBrush = UISettings->bUseClayBrush && ToolTarget::TargetType == ELandscapeToolTargetType::Heightmap;
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bool bUseWeightTargetValue = UISettings->bUseWeightTargetValue && ToolTarget::TargetType == ELandscapeToolTargetType::Weightmap;
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// The data we'll be writing to
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TArray<typename ToolTarget::CacheClass::DataType> Data;
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this->Cache.GetCachedData(X1, Y1, X2, Y2, Data);
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// The source data we use for editing.
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// For heightmaps we use a cached snapshot, for weightmaps we use the live data.
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TArray<typename ToolTarget::CacheClass::DataType>* SourceDataArrayPtr = &Data;
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TArray<typename ToolTarget::CacheClass::DataType> OriginalData;
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if (ToolTarget::TargetType == ELandscapeToolTargetType::Heightmap)
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{
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// Heightmaps use the original data rather than the data edited during the stroke.
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this->Cache.GetOriginalData(X1, Y1, X2, Y2, OriginalData);
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SourceDataArrayPtr = &OriginalData;
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}
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else
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if (!bUseWeightTargetValue)
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{
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// When painting weights (and not using target value mode), we use a source value that tends more
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// to the current value as we paint over the same region multiple times.
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this->Cache.GetOriginalData(X1, Y1, X2, Y2, OriginalData);
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SourceDataArrayPtr = &OriginalData;
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for (int32 Y = Y1; Y < Y2; Y++)
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{
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for (int32 X = X1; X < X2; X++)
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{
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float VertexInfluence = TotalInfluenceMap.FindRef(ALandscape::MakeKey(X, Y));
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typename ToolTarget::CacheClass::DataType& CurrentValue = DATA_AT(Data, X, Y);
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typename ToolTarget::CacheClass::DataType& SourceValue = DATA_AT(OriginalData, X, Y);
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SourceValue = FMath::Lerp<typename ToolTarget::CacheClass::DataType>(SourceValue, CurrentValue, FMath::Min<float>(VertexInfluence * 0.05f, 1.f));
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}
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}
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}
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FMatrix ToWorld = ToolTarget::ToWorldMatrix(this->LandscapeInfo);
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FMatrix FromWorld = ToolTarget::FromWorldMatrix(this->LandscapeInfo);
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// Adjust strength based on brush size and drawscale, so strength 1 = one hemisphere
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float AdjustedStrength = ToolTarget::StrengthMultiplier(this->LandscapeInfo, UISettings->BrushRadius);
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typename ToolTarget::CacheClass::DataType DestValue = ToolTarget::CacheClass::ClampValue(255.f * UISettings->WeightTargetValue);
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FPlane BrushPlane;
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TArray<FVector> Normals;
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if (bUseClayBrush)
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{
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// Calculate normals for brush verts in data space
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Normals.Empty(OriginalData.Num());
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Normals.AddZeroed(OriginalData.Num());
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for (int32 Y = Y1; Y < Y2; Y++)
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{
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for (int32 X = X1; X < X2; X++)
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{
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FVector Vert00 = ToWorld.TransformPosition(FVector((float)X + 0.f, (float)Y + 0.f, DATA_AT(OriginalData, X + 0, Y + 0)));
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FVector Vert01 = ToWorld.TransformPosition(FVector((float)X + 0.f, (float)Y + 1.f, DATA_AT(OriginalData, X + 0, Y + 1)));
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FVector Vert10 = ToWorld.TransformPosition(FVector((float)X + 1.f, (float)Y + 0.f, DATA_AT(OriginalData, X + 1, Y + 0)));
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FVector Vert11 = ToWorld.TransformPosition(FVector((float)X + 1.f, (float)Y + 1.f, DATA_AT(OriginalData, X + 1, Y + 1)));
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FVector FaceNormal1 = ((Vert00 - Vert10) ^ (Vert10 - Vert11)).SafeNormal();
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FVector FaceNormal2 = ((Vert11 - Vert01) ^ (Vert01 - Vert00)).SafeNormal();
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// contribute to the vertex normals.
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DATA_AT(Normals, X + 1, Y + 0) += FaceNormal1;
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DATA_AT(Normals, X + 0, Y + 1) += FaceNormal2;
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DATA_AT(Normals, X + 0, Y + 0) += FaceNormal1 + FaceNormal2;
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DATA_AT(Normals, X + 1, Y + 1) += FaceNormal1 + FaceNormal2;
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}
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}
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for (int32 Y = Y1; Y <= Y2; Y++)
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{
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for (int32 X = X1; X <= X2; X++)
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{
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DATA_AT(Normals, X, Y) = DATA_AT(Normals, X, Y).SafeNormal();
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}
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}
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// Find brush centroid location
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FVector AveragePoint(0.f, 0.f, 0.f);
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FVector AverageNormal(0.f, 0.f, 0.f);
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float TotalWeight = 0.f;
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for (auto It = BrushInfo.CreateIterator(); It; ++It)
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{
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int32 X, Y;
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ALandscape::UnpackKey(It.Key(), X, Y);
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float Weight = It.Value();
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AveragePoint += FVector((float)X * Weight, (float)Y * Weight, (float)DATA_AT(OriginalData, FMath::FloorToInt(X), FMath::FloorToInt(Y)) * Weight);
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FVector SampleNormal = DATA_AT(Normals, X, Y);
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AverageNormal += SampleNormal * Weight;
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TotalWeight += Weight;
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}
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if (TotalWeight > 0.f)
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{
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AveragePoint /= TotalWeight;
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AverageNormal = AverageNormal.SafeNormal();
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}
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// Convert to world space
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FVector AverageLocation = ToWorld.TransformPosition(AveragePoint);
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FVector StrengthVector = ToWorld.TransformVector(FVector(0, 0, UISettings->ToolStrength * Pressure * AdjustedStrength));
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// Brush pushes out in the normal direction
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FVector OffsetVector = AverageNormal * StrengthVector.Z;
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if (bInvert)
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{
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OffsetVector *= -1;
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}
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// World space brush plane
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BrushPlane = FPlane(AverageLocation + OffsetVector, AverageNormal);
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}
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// Apply the brush
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for (auto It = BrushInfo.CreateIterator(); It; ++It)
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{
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int32 X, Y;
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ALandscape::UnpackKey(It.Key(), X, Y);
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// Update influence map
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float VertexInfluence = TotalInfluenceMap.FindRef(It.Key());
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TotalInfluenceMap.Add(It.Key(), VertexInfluence + It.Value());
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float PaintAmount = It.Value() * UISettings->ToolStrength * Pressure * AdjustedStrength;
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typename ToolTarget::CacheClass::DataType& CurrentValue = DATA_AT(Data, X, Y);
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const typename ToolTarget::CacheClass::DataType& SourceValue = DATA_AT(*SourceDataArrayPtr, X, Y);
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if (bUseWeightTargetValue)
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{
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if (bInvert)
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{
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CurrentValue = FMath::Lerp(CurrentValue, DestValue, PaintAmount / AdjustedStrength);
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}
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else
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{
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CurrentValue = FMath::Lerp(CurrentValue, DestValue, PaintAmount / AdjustedStrength);
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}
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}
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else
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if (bUseClayBrush)
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{
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// Brush application starts from original world location at start of stroke
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FVector WorldLoc = ToWorld.TransformPosition(FVector(X, Y, SourceValue));
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// Calculate new location on the brush plane
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WorldLoc.Z = (BrushPlane.W - BrushPlane.X*WorldLoc.X - BrushPlane.Y*WorldLoc.Y) / BrushPlane.Z;
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// Painted amount lerps based on brush falloff.
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float PaintValue = FMath::Lerp<float>((float)SourceValue, FromWorld.TransformPosition(WorldLoc).Z, It.Value());
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if (bInvert)
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{
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CurrentValue = ToolTarget::CacheClass::ClampValue(FMath::Min<int32>(FMath::RoundToInt(PaintValue), CurrentValue));
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}
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else
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{
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CurrentValue = ToolTarget::CacheClass::ClampValue(FMath::Max<int32>(FMath::RoundToInt(PaintValue), CurrentValue));
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}
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}
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else
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{
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if (bInvert)
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{
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CurrentValue = ToolTarget::CacheClass::ClampValue(FMath::Min<int32>(SourceValue - FMath::RoundToInt(PaintAmount), CurrentValue));
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}
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else
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{
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CurrentValue = ToolTarget::CacheClass::ClampValue(FMath::Max<int32>(SourceValue + FMath::RoundToInt(PaintAmount), CurrentValue));
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}
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}
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}
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this->Cache.SetCachedData(X1, Y1, X2, Y2, Data, UISettings->PaintingRestriction);
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this->Cache.Flush();
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}
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#undef DATA_AT
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};
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class FLandscapeToolPaint : public FLandscapeToolPaintBase<FWeightmapToolTarget, FLandscapeToolStrokePaint<FWeightmapToolTarget>>
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{
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public:
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FLandscapeToolPaint(FEdModeLandscape* InEdMode)
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: FLandscapeToolPaintBase<FWeightmapToolTarget, FLandscapeToolStrokePaint<FWeightmapToolTarget>>(InEdMode)
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{}
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virtual const TCHAR* GetToolName() override { return TEXT("Paint"); }
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virtual FText GetDisplayName() override { return NSLOCTEXT("UnrealEd", "LandscapeMode_Paint", "Paint"); };
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};
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class FLandscapeToolSculpt : public FLandscapeToolPaintBase<FHeightmapToolTarget, FLandscapeToolStrokePaint<FHeightmapToolTarget>>
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{
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public:
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FLandscapeToolSculpt(FEdModeLandscape* InEdMode)
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: FLandscapeToolPaintBase<FHeightmapToolTarget, FLandscapeToolStrokePaint<FHeightmapToolTarget>>(InEdMode)
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{}
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virtual const TCHAR* GetToolName() override { return TEXT("Sculpt"); }
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virtual FText GetDisplayName() override { return NSLOCTEXT("UnrealEd", "LandscapeMode_Sculpt", "Sculpt"); };
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};
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//
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// FLandscapeToolSmooth
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//
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template<class ToolTarget>
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class FLandscapeToolStrokeSmooth : public FLandscapeToolStrokePaintBase<ToolTarget>
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{
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public:
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FLandscapeToolStrokeSmooth(FEdModeLandscape* InEdMode, const FLandscapeToolTarget& InTarget)
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: FLandscapeToolStrokePaintBase<ToolTarget>(InEdMode, InTarget)
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{}
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virtual ~FLandscapeToolStrokeSmooth() {}
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virtual void Apply(FEditorViewportClient* ViewportClient, FLandscapeBrush* Brush, const ULandscapeEditorObject* UISettings, const TArray<FLandscapeToolMousePosition>& MousePositions) override
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{
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if (!this->LandscapeInfo) return;
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// Get list of verts to update
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TMap<FIntPoint, float> BrushInfo;
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int32 X1, Y1, X2, Y2;
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if (!Brush->ApplyBrush(MousePositions, BrushInfo, X1, Y1, X2, Y2))
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{
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return;
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}
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// Tablet pressure
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float Pressure = ViewportClient->Viewport->IsPenActive() ? ViewportClient->Viewport->GetTabletPressure() : 1.f;
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// expand the area by one vertex in each direction to ensure normals are calculated correctly
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X1 -= 1;
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Y1 -= 1;
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X2 += 1;
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Y2 += 1;
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this->Cache.CacheData(X1, Y1, X2, Y2);
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TArray<typename ToolTarget::CacheClass::DataType> Data;
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this->Cache.GetCachedData(X1, Y1, X2, Y2, Data);
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// Apply the brush
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if (UISettings->bDetailSmooth)
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{
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LowPassFilter<typename ToolTarget::CacheClass::DataType>(X1, Y1, X2, Y2, BrushInfo, Data, UISettings->DetailScale, UISettings->ToolStrength * Pressure);
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}
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else
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{
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// Filter size is SmoothFilterKernelScale * BrushSize, But avoids overflow value or under 1
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int32 HalfFilterSize = FMath::Clamp<int32>(UISettings->SmoothFilterKernelScale * FMath::Max(Y2 - Y1 + 1, X2 - X1 + 1) * 0.25f, 1, 127);
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for (auto It = BrushInfo.CreateIterator(); It; ++It)
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{
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int32 X, Y;
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ALandscape::UnpackKey(It.Key(), X, Y);
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if (It.Value() > 0.f)
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{
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int32 FilterValue = 0;
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int32 FilterSamplingNumber = 0;
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for (int32 y = Y - HalfFilterSize; y <= Y + HalfFilterSize; y++)
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{
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int32 YY = FMath::Clamp<int32>(y, Y1, Y2);
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for (int32 x = X - HalfFilterSize; x <= X + HalfFilterSize; x++)
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{
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int32 XX = FMath::Clamp<int32>(x, X1, X2);
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if (BrushInfo.Find(FIntPoint(XX, YY)))
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{
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FilterValue += Data[(XX - X1) + (YY - Y1)*(1 + X2 - X1)];
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FilterSamplingNumber++;
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}
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}
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}
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FilterValue /= FilterSamplingNumber;
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int32 HeightDataIndex = (X - X1) + (Y - Y1)*(1 + X2 - X1);
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Data[HeightDataIndex] = FMath::Lerp(Data[HeightDataIndex], (typename ToolTarget::CacheClass::DataType)FilterValue, It.Value() * UISettings->ToolStrength * Pressure);
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}
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}
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}
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this->Cache.SetCachedData(X1, Y1, X2, Y2, Data, UISettings->PaintingRestriction);
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this->Cache.Flush();
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}
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};
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template<class ToolTarget>
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class FLandscapeToolSmooth : public FLandscapeToolPaintBase<ToolTarget, FLandscapeToolStrokeSmooth<ToolTarget>>
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{
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public:
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FLandscapeToolSmooth(FEdModeLandscape* InEdMode)
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: FLandscapeToolPaintBase<ToolTarget, FLandscapeToolStrokeSmooth<ToolTarget> >(InEdMode)
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{}
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virtual const TCHAR* GetToolName() override { return TEXT("Smooth"); }
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virtual FText GetDisplayName() override { return NSLOCTEXT("UnrealEd", "LandscapeMode_Smooth", "Smooth"); };
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};
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//
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// FLandscapeToolFlatten
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//
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template<class ToolTarget>
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class FLandscapeToolStrokeFlatten : public FLandscapeToolStrokePaintBase < ToolTarget >
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{
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typename ToolTarget::CacheClass::DataType FlattenHeight;
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FVector FlattenNormal;
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float FlattenPlaneDist;
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bool bInitializedFlattenHeight;
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bool bTargetIsHeightmap;
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public:
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FLandscapeToolStrokeFlatten(FEdModeLandscape* InEdMode, const FLandscapeToolTarget& InTarget)
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: FLandscapeToolStrokePaintBase<ToolTarget>(InEdMode, InTarget)
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, bInitializedFlattenHeight(false)
|
|
, bTargetIsHeightmap(InTarget.TargetType == ELandscapeToolTargetType::Heightmap)
|
|
{
|
|
if (InEdMode->UISettings->bUseFlattenTarget && bTargetIsHeightmap)
|
|
{
|
|
FTransform LocalToWorld = InTarget.LandscapeInfo->GetLandscapeProxy()->ActorToWorld();
|
|
float Height = (InEdMode->UISettings->FlattenTarget - LocalToWorld.GetTranslation().Z) / LocalToWorld.GetScale3D().Z;
|
|
FlattenHeight = LandscapeDataAccess::GetTexHeight(Height);
|
|
bInitializedFlattenHeight = true;
|
|
}
|
|
}
|
|
|
|
virtual ~FLandscapeToolStrokeFlatten() {}
|
|
|
|
virtual void Apply(FEditorViewportClient* ViewportClient, FLandscapeBrush* Brush, const ULandscapeEditorObject* UISettings, const TArray<FLandscapeToolMousePosition>& MousePositions) override
|
|
{
|
|
if (!this->LandscapeInfo) return;
|
|
|
|
if (!bInitializedFlattenHeight || (UISettings->bPickValuePerApply && bTargetIsHeightmap))
|
|
{
|
|
bInitializedFlattenHeight = false;
|
|
float FlattenX = MousePositions[0].PositionX;
|
|
float FlattenY = MousePositions[0].PositionY;
|
|
int32 FlattenHeightX = FMath::FloorToInt(FlattenX);
|
|
int32 FlattenHeightY = FMath::FloorToInt(FlattenY);
|
|
|
|
this->Cache.CacheData(FlattenHeightX, FlattenHeightY, FlattenHeightX + 1, FlattenHeightY + 1);
|
|
float HeightValue = this->Cache.GetValue(FlattenX, FlattenY);
|
|
FlattenHeight = HeightValue;
|
|
|
|
if (UISettings->bUseSlopeFlatten && bTargetIsHeightmap)
|
|
{
|
|
FlattenNormal = this->Cache.GetNormal(FlattenHeightX, FlattenHeightY);
|
|
FlattenPlaneDist = -(FlattenNormal | FVector(FlattenX, FlattenY, HeightValue));
|
|
}
|
|
|
|
bInitializedFlattenHeight = true;
|
|
}
|
|
|
|
|
|
// Get list of verts to update
|
|
TMap<FIntPoint, float> BrushInfo;
|
|
int32 X1, Y1, X2, Y2;
|
|
if (!Brush->ApplyBrush(MousePositions, BrushInfo, X1, Y1, X2, Y2))
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Tablet pressure
|
|
float Pressure = ViewportClient->Viewport->IsPenActive() ? ViewportClient->Viewport->GetTabletPressure() : 1.f;
|
|
|
|
// expand the area by one vertex in each direction to ensure normals are calculated correctly
|
|
X1 -= 1;
|
|
Y1 -= 1;
|
|
X2 += 1;
|
|
Y2 += 1;
|
|
|
|
this->Cache.CacheData(X1, Y1, X2, Y2);
|
|
|
|
TArray<typename ToolTarget::CacheClass::DataType> HeightData;
|
|
this->Cache.GetCachedData(X1, Y1, X2, Y2, HeightData);
|
|
|
|
// Apply the brush
|
|
for (auto It = BrushInfo.CreateIterator(); It; ++It)
|
|
{
|
|
int32 X, Y;
|
|
ALandscape::UnpackKey(It.Key(), X, Y);
|
|
|
|
if (It.Value() > 0.f)
|
|
{
|
|
int32 HeightDataIndex = (X - X1) + (Y - Y1)*(1 + X2 - X1);
|
|
|
|
if (!(UISettings->bUseSlopeFlatten && bTargetIsHeightmap))
|
|
{
|
|
int32 Delta = HeightData[HeightDataIndex] - FlattenHeight;
|
|
switch (UISettings->FlattenMode)
|
|
{
|
|
case ELandscapeToolNoiseMode::Add:
|
|
if (Delta < 0)
|
|
{
|
|
HeightData[HeightDataIndex] = FMath::Lerp(HeightData[HeightDataIndex], FlattenHeight, It.Value() * UISettings->ToolStrength * Pressure);
|
|
}
|
|
break;
|
|
case ELandscapeToolNoiseMode::Sub:
|
|
if (Delta > 0)
|
|
{
|
|
HeightData[HeightDataIndex] = FMath::Lerp(HeightData[HeightDataIndex], FlattenHeight, It.Value() * UISettings->ToolStrength * Pressure);
|
|
}
|
|
break;
|
|
default:
|
|
case ELandscapeToolNoiseMode::Both:
|
|
HeightData[HeightDataIndex] = FMath::Lerp(HeightData[HeightDataIndex], FlattenHeight, It.Value() * UISettings->ToolStrength * Pressure);
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
typename ToolTarget::CacheClass::DataType DestValue = -(FlattenNormal.X * X + FlattenNormal.Y * Y + FlattenPlaneDist) / FlattenNormal.Z;
|
|
//float PlaneDist = FlattenNormal | FVector(X, Y, HeightData(HeightDataIndex)) + FlattenPlaneDist;
|
|
float PlaneDist = HeightData[HeightDataIndex] - DestValue;
|
|
DestValue = HeightData[HeightDataIndex] - PlaneDist * It.Value() * UISettings->ToolStrength * Pressure;
|
|
switch (UISettings->FlattenMode)
|
|
{
|
|
case ELandscapeToolNoiseMode::Add:
|
|
if (PlaneDist < 0)
|
|
{
|
|
HeightData[HeightDataIndex] = FMath::Lerp(HeightData[HeightDataIndex], DestValue, It.Value() * UISettings->ToolStrength * Pressure);
|
|
}
|
|
break;
|
|
case ELandscapeToolNoiseMode::Sub:
|
|
if (PlaneDist > 0)
|
|
{
|
|
HeightData[HeightDataIndex] = FMath::Lerp(HeightData[HeightDataIndex], DestValue, It.Value() * UISettings->ToolStrength * Pressure);
|
|
}
|
|
break;
|
|
default:
|
|
case ELandscapeToolNoiseMode::Both:
|
|
HeightData[HeightDataIndex] = FMath::Lerp(HeightData[HeightDataIndex], DestValue, It.Value() * UISettings->ToolStrength * Pressure);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
this->Cache.SetCachedData(X1, Y1, X2, Y2, HeightData, UISettings->PaintingRestriction);
|
|
this->Cache.Flush();
|
|
}
|
|
};
|
|
|
|
template<class ToolTarget>
|
|
class FLandscapeToolFlatten : public FLandscapeToolPaintBase < ToolTarget, FLandscapeToolStrokeFlatten<ToolTarget> >
|
|
{
|
|
protected:
|
|
FVector LastMousePosition;
|
|
UStaticMesh* PlaneMesh;
|
|
UStaticMeshComponent* MeshComponent;
|
|
|
|
public:
|
|
FLandscapeToolFlatten(FEdModeLandscape* InEdMode)
|
|
: FLandscapeToolPaintBase<ToolTarget, FLandscapeToolStrokeFlatten<ToolTarget> >(InEdMode)
|
|
, LastMousePosition(FVector::ZeroVector)
|
|
, PlaneMesh(LoadObject<UStaticMesh>(NULL, TEXT("/Engine/EditorLandscapeResources/FlattenPlaneMesh.FlattenPlaneMesh")))
|
|
, MeshComponent(NULL)
|
|
{
|
|
check(PlaneMesh);
|
|
}
|
|
|
|
virtual const TCHAR* GetToolName() override { return TEXT("Flatten"); }
|
|
virtual FText GetDisplayName() override { return NSLOCTEXT("UnrealEd", "LandscapeMode_Flatten", "Flatten"); };
|
|
|
|
virtual void Tick(FEditorViewportClient* ViewportClient, float DeltaTime)
|
|
{
|
|
FLandscapeToolPaintBase<ToolTarget, FLandscapeToolStrokeFlatten<ToolTarget>>::Tick(ViewportClient, DeltaTime);
|
|
|
|
bool bShowGrid = this->EdMode->UISettings->bUseFlattenTarget && this->EdMode->CurrentToolTarget.TargetType == ELandscapeToolTargetType::Heightmap && this->EdMode->UISettings->bShowFlattenTargetPreview;
|
|
MeshComponent->SetVisibility(bShowGrid);
|
|
}
|
|
|
|
virtual bool MouseMove(FEditorViewportClient* ViewportClient, FViewport* Viewport, int32 x, int32 y) override
|
|
{
|
|
bool bResult = FLandscapeToolPaintBase<ToolTarget, FLandscapeToolStrokeFlatten<ToolTarget>>::MouseMove(ViewportClient, Viewport, x, y);
|
|
|
|
if (ViewportClient->IsLevelEditorClient() && MeshComponent != NULL)
|
|
{
|
|
this->EdMode->LandscapeMouseTrace((FEditorViewportClient*)ViewportClient, x, y, LastMousePosition);
|
|
|
|
const FTransform LocalToWorld = this->EdMode->CurrentToolTarget.LandscapeInfo->GetLandscapeProxy()->ActorToWorld();
|
|
FVector Origin;
|
|
Origin.X = FMath::RoundToFloat(LastMousePosition.X);
|
|
Origin.Y = FMath::RoundToFloat(LastMousePosition.Y);
|
|
Origin.Z = (FMath::RoundToFloat((this->EdMode->UISettings->FlattenTarget - LocalToWorld.GetTranslation().Z) / LocalToWorld.GetScale3D().Z * LANDSCAPE_INV_ZSCALE) - 0.1f) * LANDSCAPE_ZSCALE;
|
|
MeshComponent->SetRelativeLocation(Origin, false);
|
|
}
|
|
|
|
return bResult;
|
|
}
|
|
|
|
virtual void EnterTool()
|
|
{
|
|
FLandscapeToolPaintBase<ToolTarget, FLandscapeToolStrokeFlatten<ToolTarget>>::EnterTool();
|
|
|
|
ALandscapeProxy* LandscapeProxy = this->EdMode->CurrentToolTarget.LandscapeInfo->GetLandscapeProxy();
|
|
MeshComponent = ConstructObject<UStaticMeshComponent>(UStaticMeshComponent::StaticClass(), LandscapeProxy, NAME_None, RF_Transient);
|
|
MeshComponent->StaticMesh = PlaneMesh;
|
|
MeshComponent->AttachTo(LandscapeProxy->GetRootComponent());
|
|
MeshComponent->RegisterComponent();
|
|
|
|
bool bShowGrid = this->EdMode->UISettings->bUseFlattenTarget && this->EdMode->CurrentToolTarget.TargetType == ELandscapeToolTargetType::Heightmap && this->EdMode->UISettings->bShowFlattenTargetPreview;
|
|
MeshComponent->SetVisibility(bShowGrid);
|
|
|
|
// Try to set a sane initial location for the preview grid
|
|
const FTransform LocalToWorld = this->EdMode->CurrentToolTarget.LandscapeInfo->GetLandscapeProxy()->GetRootComponent()->GetComponentToWorld();
|
|
FVector Origin = FVector::ZeroVector;
|
|
Origin.Z = (FMath::RoundToFloat((this->EdMode->UISettings->FlattenTarget - LocalToWorld.GetTranslation().Z) / LocalToWorld.GetScale3D().Z * LANDSCAPE_INV_ZSCALE) - 0.1f) * LANDSCAPE_ZSCALE;
|
|
MeshComponent->SetRelativeLocation(Origin, false);
|
|
}
|
|
|
|
virtual void ExitTool()
|
|
{
|
|
FLandscapeToolPaintBase<ToolTarget, FLandscapeToolStrokeFlatten<ToolTarget>>::ExitTool();
|
|
|
|
MeshComponent->DetachFromParent();
|
|
MeshComponent->DestroyComponent();
|
|
}
|
|
};
|
|
|
|
//
|
|
// FLandscapeToolNoise
|
|
//
|
|
template<class ToolTarget>
|
|
class FLandscapeToolStrokeNoise : public FLandscapeToolStrokePaintBase<ToolTarget>
|
|
{
|
|
public:
|
|
FLandscapeToolStrokeNoise(FEdModeLandscape* InEdMode, const FLandscapeToolTarget& InTarget)
|
|
: FLandscapeToolStrokePaintBase<ToolTarget>(InEdMode, InTarget)
|
|
{}
|
|
|
|
virtual ~FLandscapeToolStrokeNoise() {}
|
|
|
|
virtual void Apply(FEditorViewportClient* ViewportClient, FLandscapeBrush* Brush, const ULandscapeEditorObject* UISettings, const TArray<FLandscapeToolMousePosition>& MousePositions) override
|
|
{
|
|
if (!this->LandscapeInfo) return;
|
|
|
|
// Get list of verts to update
|
|
TMap<FIntPoint, float> BrushInfo;
|
|
int32 X1, Y1, X2, Y2;
|
|
if (!Brush->ApplyBrush(MousePositions, BrushInfo, X1, Y1, X2, Y2))
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Tablet pressure
|
|
float Pressure = ViewportClient->Viewport->IsPenActive() ? ViewportClient->Viewport->GetTabletPressure() : 1.f;
|
|
|
|
// expand the area by one vertex in each direction to ensure normals are calculated correctly
|
|
X1 -= 1;
|
|
Y1 -= 1;
|
|
X2 += 1;
|
|
Y2 += 1;
|
|
|
|
this->Cache.CacheData(X1, Y1, X2, Y2);
|
|
TArray<typename ToolTarget::CacheClass::DataType> Data;
|
|
this->Cache.GetCachedData(X1, Y1, X2, Y2, Data);
|
|
|
|
float BrushSizeAdjust = 1.0f;
|
|
if (ToolTarget::TargetType != ELandscapeToolTargetType::Weightmap && UISettings->BrushRadius < UISettings->MaximumValueRadius)
|
|
{
|
|
BrushSizeAdjust = UISettings->BrushRadius / UISettings->MaximumValueRadius;
|
|
}
|
|
|
|
bool bUseWeightTargetValue = UISettings->bUseWeightTargetValue && ToolTarget::TargetType == ELandscapeToolTargetType::Weightmap;
|
|
|
|
// Apply the brush
|
|
for (auto It = BrushInfo.CreateIterator(); It; ++It)
|
|
{
|
|
int32 X, Y;
|
|
ALandscape::UnpackKey(It.Key(), X, Y);
|
|
|
|
if (It.Value() > 0.f)
|
|
{
|
|
float OriginalValue = Data[(X - X1) + (Y - Y1)*(1 + X2 - X1)];
|
|
if (bUseWeightTargetValue)
|
|
{
|
|
FNoiseParameter NoiseParam(0, UISettings->NoiseScale, 255.f / 2.f);
|
|
float DestValue = ELandscapeToolNoiseMode::Conversion(ELandscapeToolNoiseMode::Add, NoiseParam.NoiseAmount, NoiseParam.Sample(X, Y)) * UISettings->WeightTargetValue;
|
|
switch (UISettings->NoiseMode)
|
|
{
|
|
case ELandscapeToolNoiseMode::Add:
|
|
if (OriginalValue >= DestValue)
|
|
{
|
|
continue;
|
|
}
|
|
break;
|
|
case ELandscapeToolNoiseMode::Sub:
|
|
DestValue += (1.f - UISettings->WeightTargetValue) * NoiseParam.NoiseAmount;
|
|
if (OriginalValue <= DestValue)
|
|
{
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
Data[(X - X1) + (Y - Y1)*(1 + X2 - X1)] = ToolTarget::CacheClass::ClampValue(FMath::RoundToInt(FMath::Lerp(OriginalValue, DestValue, It.Value() * UISettings->ToolStrength * Pressure)));
|
|
}
|
|
else
|
|
{
|
|
float TotalStrength = It.Value() * UISettings->ToolStrength * Pressure * ToolTarget::StrengthMultiplier(this->LandscapeInfo, UISettings->BrushRadius);
|
|
FNoiseParameter NoiseParam(0, UISettings->NoiseScale, TotalStrength * BrushSizeAdjust);
|
|
float PaintAmount = ELandscapeToolNoiseMode::Conversion(UISettings->NoiseMode, NoiseParam.NoiseAmount, NoiseParam.Sample(X, Y));
|
|
Data[(X - X1) + (Y - Y1)*(1 + X2 - X1)] = ToolTarget::CacheClass::ClampValue(OriginalValue + PaintAmount);
|
|
}
|
|
}
|
|
}
|
|
|
|
this->Cache.SetCachedData(X1, Y1, X2, Y2, Data, UISettings->PaintingRestriction);
|
|
this->Cache.Flush();
|
|
}
|
|
};
|
|
|
|
template<class ToolTarget>
|
|
class FLandscapeToolNoise : public FLandscapeToolPaintBase < ToolTarget, FLandscapeToolStrokeNoise<ToolTarget> >
|
|
{
|
|
public:
|
|
FLandscapeToolNoise(FEdModeLandscape* InEdMode)
|
|
: FLandscapeToolPaintBase<ToolTarget, FLandscapeToolStrokeNoise<ToolTarget> >(InEdMode)
|
|
{}
|
|
|
|
virtual const TCHAR* GetToolName() override { return TEXT("Noise"); }
|
|
virtual FText GetDisplayName() override { return NSLOCTEXT("UnrealEd", "LandscapeMode_Noise", "Noise"); };
|
|
};
|
|
|
|
|
|
//
|
|
// Toolset initialization
|
|
//
|
|
void FEdModeLandscape::InitializeTool_Paint()
|
|
{
|
|
auto Tool_Sculpt = MakeUnique<FLandscapeToolSculpt>(this);
|
|
Tool_Sculpt->ValidBrushes.Add("BrushSet_Circle");
|
|
Tool_Sculpt->ValidBrushes.Add("BrushSet_Alpha");
|
|
Tool_Sculpt->ValidBrushes.Add("BrushSet_Pattern");
|
|
Tool_Sculpt->ValidBrushes.Add("BrushSet_Component");
|
|
LandscapeTools.Add(MoveTemp(Tool_Sculpt));
|
|
|
|
auto Tool_Paint = MakeUnique<FLandscapeToolPaint>(this);
|
|
Tool_Paint->ValidBrushes.Add("BrushSet_Circle");
|
|
Tool_Paint->ValidBrushes.Add("BrushSet_Alpha");
|
|
Tool_Paint->ValidBrushes.Add("BrushSet_Pattern");
|
|
Tool_Paint->ValidBrushes.Add("BrushSet_Component");
|
|
LandscapeTools.Add(MoveTemp(Tool_Paint));
|
|
}
|
|
|
|
void FEdModeLandscape::InitializeTool_Smooth()
|
|
{
|
|
auto Tool_Smooth_Heightmap = MakeUnique<FLandscapeToolSmooth<FHeightmapToolTarget>>(this);
|
|
Tool_Smooth_Heightmap->ValidBrushes.Add("BrushSet_Circle");
|
|
Tool_Smooth_Heightmap->ValidBrushes.Add("BrushSet_Alpha");
|
|
Tool_Smooth_Heightmap->ValidBrushes.Add("BrushSet_Pattern");
|
|
LandscapeTools.Add(MoveTemp(Tool_Smooth_Heightmap));
|
|
|
|
auto Tool_Smooth_Weightmap = MakeUnique<FLandscapeToolSmooth<FWeightmapToolTarget>>(this);
|
|
Tool_Smooth_Weightmap->ValidBrushes.Add("BrushSet_Circle");
|
|
Tool_Smooth_Weightmap->ValidBrushes.Add("BrushSet_Alpha");
|
|
Tool_Smooth_Weightmap->ValidBrushes.Add("BrushSet_Pattern");
|
|
LandscapeTools.Add(MoveTemp(Tool_Smooth_Weightmap));
|
|
}
|
|
|
|
void FEdModeLandscape::InitializeTool_Flatten()
|
|
{
|
|
auto Tool_Flatten_Heightmap = MakeUnique<FLandscapeToolFlatten<FHeightmapToolTarget>>(this);
|
|
Tool_Flatten_Heightmap->ValidBrushes.Add("BrushSet_Circle");
|
|
Tool_Flatten_Heightmap->ValidBrushes.Add("BrushSet_Alpha");
|
|
Tool_Flatten_Heightmap->ValidBrushes.Add("BrushSet_Pattern");
|
|
LandscapeTools.Add(MoveTemp(Tool_Flatten_Heightmap));
|
|
|
|
auto Tool_Flatten_Weightmap = MakeUnique<FLandscapeToolFlatten<FWeightmapToolTarget>>(this);
|
|
Tool_Flatten_Weightmap->ValidBrushes.Add("BrushSet_Circle");
|
|
Tool_Flatten_Weightmap->ValidBrushes.Add("BrushSet_Alpha");
|
|
Tool_Flatten_Weightmap->ValidBrushes.Add("BrushSet_Pattern");
|
|
LandscapeTools.Add(MoveTemp(Tool_Flatten_Weightmap));
|
|
}
|
|
|
|
void FEdModeLandscape::InitializeTool_Noise()
|
|
{
|
|
auto Tool_Noise_Heightmap = MakeUnique<FLandscapeToolNoise<FHeightmapToolTarget>>(this);
|
|
Tool_Noise_Heightmap->ValidBrushes.Add("BrushSet_Circle");
|
|
Tool_Noise_Heightmap->ValidBrushes.Add("BrushSet_Alpha");
|
|
Tool_Noise_Heightmap->ValidBrushes.Add("BrushSet_Pattern");
|
|
LandscapeTools.Add(MoveTemp(Tool_Noise_Heightmap));
|
|
|
|
auto Tool_Noise_Weightmap = MakeUnique<FLandscapeToolNoise<FWeightmapToolTarget>>(this);
|
|
Tool_Noise_Weightmap->ValidBrushes.Add("BrushSet_Circle");
|
|
Tool_Noise_Weightmap->ValidBrushes.Add("BrushSet_Alpha");
|
|
Tool_Noise_Weightmap->ValidBrushes.Add("BrushSet_Pattern");
|
|
LandscapeTools.Add(MoveTemp(Tool_Noise_Weightmap));
|
|
}
|