62 lines
2.4 KiB
C
62 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 "VoxelMinimal.h"
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#include "StaticMeshResources.h"
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#include "VoxelRawStaticIndexBuffer.h"
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class FVoxelProcMeshBuffersRenderData;
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DECLARE_STATS_GROUP(TEXT("Voxel Proc Mesh Memory"), STATGROUP_VoxelProcMeshMemory, STATCAT_Advanced);
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DECLARE_VOXEL_MEMORY_STAT(TEXT("Voxel Proc Mesh Memory"), STAT_VoxelProcMeshMemory, STATGROUP_VoxelMemory, VOXEL_API);
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DECLARE_VOXEL_MEMORY_STAT(TEXT("Indices"), STAT_VoxelProcMeshMemory_Indices, STATGROUP_VoxelProcMeshMemory, VOXEL_API);
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DECLARE_VOXEL_MEMORY_STAT(TEXT("Positions"), STAT_VoxelProcMeshMemory_Positions, STATGROUP_VoxelProcMeshMemory, VOXEL_API);
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DECLARE_VOXEL_MEMORY_STAT(TEXT("Colors"), STAT_VoxelProcMeshMemory_Colors, STATGROUP_VoxelProcMeshMemory, VOXEL_API);
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DECLARE_VOXEL_MEMORY_STAT(TEXT("Adjacency"), STAT_VoxelProcMeshMemory_Adjacency, STATGROUP_VoxelProcMeshMemory, VOXEL_API);
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DECLARE_VOXEL_MEMORY_STAT(TEXT("UVs & Tangents"), STAT_VoxelProcMeshMemory_UVs_Tangents, STATGROUP_VoxelProcMeshMemory, VOXEL_API);
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struct VOXEL_API FVoxelProcMeshBuffers
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{
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// We'll be initializing/releasing a single buffer multiple times, so need to keep the data on the CPU!
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static constexpr bool bNeedsCPUAccess = true;
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// GUIDs of the meshes merged into these buffers, used to avoid rebuilding collisions & navmesh
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TArray<FGuid> Guids;
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/** Vertex buffer for this section */
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FStaticMeshVertexBuffers VertexBuffers;
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/** Index buffer for this section */
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FVoxelRawStaticIndexBuffer IndexBuffer{ bNeedsCPUAccess };
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/** Index buffer containing adjacency information required by tessellation. */
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FVoxelRawStaticIndexBuffer AdjacencyIndexBuffer{ bNeedsCPUAccess };
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/** Local bounds of this section */
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FBox LocalBounds = FBox(ForceInit);
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inline int32 GetNumVertices() const
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{
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return VertexBuffers.PositionVertexBuffer.GetNumVertices();
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}
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inline int32 GetNumIndices() const
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{
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return IndexBuffer.GetNumIndices();
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}
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FVoxelProcMeshBuffers();
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~FVoxelProcMeshBuffers();
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uint32 GetAllocatedSize() const;
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void UpdateStats();
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private:
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int32 LastAllocatedSize = 0;
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int32 LastAllocatedSize_Indices = 0;
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int32 LastAllocatedSize_Positions = 0;
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int32 LastAllocatedSize_Colors = 0;
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int32 LastAllocatedSize_Adjacency = 0;
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int32 LastAllocatedSize_UVs_Tangents = 0;
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mutable TVoxelWeakPtr<FVoxelProcMeshBuffersRenderData> RenderData;
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friend class FVoxelProcMeshBuffersRenderData;
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};
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