ClothVertBoneData.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "ClothVertBoneData.generated.h"
 
// Bone data for a vertex
USTRUCT()
struct FClothVertBoneData
{
    GENERATED_BODY()
 
    FClothVertBoneData()
        : NumInfluences(0)
    {
        FMemory::Memset(BoneIndices, (uint8)INDEX_NONE, sizeof(BoneIndices));
        FMemory::Memset(BoneWeights, 0, sizeof(BoneWeights));
    }
 
    // MAX_TOTAL_INFLUENCES = 12 is defined in GPUSkinPublicDefs.h, but that would 
    // require a dependency on Engine, which we can't have here.  Until that can
    // be migrated elsewhere (not to mention if), we make a redundant variable
    // with an 8 in it, that needs to stay in sync with MAX_TOTAL_INFLUENCES.
    static const int8 MaxTotalInfluences = 12;
 
    // Number of influences for this vertex.
    UPROPERTY()
    int32 NumInfluences;
 
    // Up to MAX_TOTAL_INFLUENCES bone indices that this vert is weighted to
    UPROPERTY()
    uint16 BoneIndices[MaxTotalInfluences];
 
    // The weights for each entry in BoneIndices
    UPROPERTY()
    float BoneWeights[MaxTotalInfluences];
};