70 lines
2.4 KiB
C
70 lines
2.4 KiB
C
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// Copyright 2020 Phyronnaz
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#pragma once
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#include "CoreMinimal.h"
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#include "VoxelDirection.h"
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#include "VoxelContainers/VoxelStaticArray.h"
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#include "VoxelData/VoxelDataAccelerator.h"
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#include "VoxelRender/Meshers/VoxelMesher.h"
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#define CUBIC_CHUNK_SIZE_WITH_NEIGHBORS (RENDER_CHUNK_SIZE + 2)
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class FVoxelCubicMesher : public FVoxelMesher
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{
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public:
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using FVoxelMesher::FVoxelMesher;
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protected:
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virtual FVoxelIntBox GetBoundsToCheckIsEmptyOn() const override final;
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virtual FVoxelIntBox GetBoundsToLock() const override final;
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virtual TVoxelSharedPtr<FVoxelChunkMesh> CreateFullChunkImpl(FVoxelMesherTimes& Times) override final;
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virtual void CreateGeometryImpl(FVoxelMesherTimes& Times, TArray<uint32>& Indices, TArray<FVector>& Vertices) override final;
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private:
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TUniquePtr<FVoxelConstDataAccelerator> Accelerator;
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TVoxelStaticArray<FVoxelValue, CUBIC_CHUNK_SIZE_WITH_NEIGHBORS * CUBIC_CHUNK_SIZE_WITH_NEIGHBORS * CUBIC_CHUNK_SIZE_WITH_NEIGHBORS> CachedValues;
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private:
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template<typename T>
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void CreateGeometryTemplate(FVoxelMesherTimes& Times, TArray<uint32>& Indices, TArray<T>& Vertices);
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private:
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FVoxelValue GetValue(int32 X, int32 Y, int32 Z) const;
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};
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class FVoxelCubicTransitionsMesher : public FVoxelTransitionsMesher
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{
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public:
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using FVoxelTransitionsMesher::FVoxelTransitionsMesher;
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protected:
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virtual FVoxelIntBox GetBoundsToCheckIsEmptyOn() const override final;
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virtual FVoxelIntBox GetBoundsToLock() const override final;
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virtual TVoxelSharedPtr<FVoxelChunkMesh> CreateFullChunkImpl(FVoxelMesherTimes& Times) override final;
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private:
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TUniquePtr<FVoxelConstDataAccelerator> Accelerator;
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private:
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template<EVoxelDirectionFlag::Type Direction, typename TVertex>
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void CreateTransitionsForDirection(FVoxelMesherTimes& Times, TArray<uint32>& Indices, TArray<TVertex>& Vertices);
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private:
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template<EVoxelDirectionFlag::Type Direction>
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FVoxelValue GetValue(int32 InStep, int32 X, int32 Y, int32 Z) const;
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template<EVoxelDirectionFlag::Type Direction>
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FVoxelMaterial GetMaterial(int32 InStep, int32 X, int32 Y, int32 Z) const;
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// LX * HalfStep = GX
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template<EVoxelDirectionFlag::Type Direction, EVoxelDirectionFlag::Type FaceDirection, typename TVertex>
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void Add2DFace(
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int32 InStep,
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const FVoxelMaterial& Material,
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int32 LX, int32 LY,
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TArray<TVertex>& Vertices, TArray<uint32>& Indices);
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template<EVoxelDirectionFlag::Type Direction>
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static FIntVector Local2DToGlobal(int32 InSize, int32 LX, int32 LY, int32 LZ);
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};
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