BKE_mesh_tangent.hh

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once

 
#include "BLI_array.hh"
#include "BLI_math_vector_types.hh"
#include "BLI_offset_indices.hh"
 
struct ReportList;
struct Mesh;
 
namespace blender::bke::mesh {

void calc_uv_tangent_tris_quads(Span<float3> vert_positions,
                                OffsetIndices<int> faces,
                                Span<int> corner_verts,
                                Span<float3> corner_normals,
                                Span<float2> uv_map,
                                MutableSpan<float4> results,
                                ReportList *reports);

Array<Array<float4>> calc_uv_tangents(Span<float3> vert_positions,
                                      OffsetIndices<int> faces,
                                      Span<int> corner_verts,
                                      Span<int3> corner_tris,
                                      Span<int> corner_tri_faces,
                                      Span<bool> sharp_faces,
                                      Span<float3> vert_normals,
                                      Span<float3> face_normals,
                                      Span<float3> corner_normals,
                                      Span<Span<float2>> uv_maps);
 
Array<float4> calc_orco_tangents(Span<float3> vert_positions,
                                 OffsetIndices<int> faces,
                                 Span<int> corner_verts,
                                 Span<int3> corner_tris,
                                 Span<int> corner_tri_faces,
                                 Span<bool> sharp_faces,
                                 Span<float3> vert_normals,
                                 Span<float3> face_normals,
                                 Span<float3> corner_normals,
                                 Span<float3> vert_orco);
 
}  // namespace blender::bke::mesh