IMeshUtilities::CalculateTangents

Calculates Tangents and Normals for a given set of vertex data

Unreal Engine C++ API Reference > Developer > MeshUtilities > IMeshUtilities

References

   
Module MeshUtilities
Header /Engine/Source/Developer/MeshUtilities/Public/MeshUtilities.h
Include #include "MeshUtilities.h"
void CalculateTangents
(
    const [TArray](API\Runtime\Core\Containers\TArray)< FVector3f > & InVertices,
    const [TArray](API\Runtime\Core\Containers\TArray)< uint32 > & InIndices,
    const [TArray](API\Runtime\Core\Containers\TArray)< FVector2f > & InUVs,
    const [TArray](API\Runtime\Core\Containers\TArray)< uint32 > & InSmoothingGroupIndices,
    const uint32 InTangentOptions,
    [TArray](API\Runtime\Core\Containers\TArray)< FVector3f > & OutTangentX,
    [TArray](API\Runtime\Core\Containers\TArray)< FVector3f > & OutTangentY,
    [TArray](API\Runtime\Core\Containers\TArray)< FVector3f > & OutNormals
) const

Remarks

Calculates Tangents and Normals for a given set of vertex data

Parameters

Name Description
InVertices Vertices that make up the mesh
InIndices Indices for the Vertex array
InUVs Texture coordinates (per-index based)
InSmoothingGroupIndices Smoothing group index (per-face based)
InTangentOptions Flags for Tangent calculation
OutTangentX Array to hold calculated Tangents
OutTangentY Array to hold calculated Bitangents
OutNormals Array to hold calculated normals (if already contains normals will use those instead for the tangent calculation)

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