void GetSkinnedTrianglePositions ( [FSkeletalMeshAccessorHelper](API\Plugins\Niagara\FSkeletalMeshAccessorHelper) & Accessor, int32 Tri, FVector3f & OutPos0, FVector3f & OutPos1, FVector3f & OutPos2, FVector3f & OutPrev0, FVector3f & OutPrev1, FVector3f & OutPrev2, int32 & Idx0, int32 & Idx1, int32 & Idx2 )