|
/*
|
|
* Copyright (C) 2021 Christopher J. Howard
|
|
*
|
|
* This file is part of Antkeeper source code.
|
|
*
|
|
* Antkeeper source code is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* Antkeeper source code is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef ANTKEEPER_GEOM_MESH_FUNCTIONS_HPP
|
|
#define ANTKEEPER_GEOM_MESH_FUNCTIONS_HPP
|
|
|
|
#include "geom/aabb.hpp"
|
|
#include "geom/mesh.hpp"
|
|
#include "utility/fundamental-types.hpp"
|
|
#include <array>
|
|
#include <vector>
|
|
|
|
namespace geom {
|
|
|
|
/**
|
|
* Creates a triangle mesh from a list of vertices and indices.
|
|
*
|
|
* @param[out] mesh Mesh to which vertices, edges, and faces will be added.
|
|
* @param vertices Vertex positions
|
|
* @param triangles Triangle indices
|
|
* @return Newly created triangle mesh.
|
|
*/
|
|
void create_triangle_mesh(mesh& mesh, const std::vector<float3>& vertices, const std::vector<std::array<std::uint_fast32_t, 3>>& triangles);
|
|
|
|
/**
|
|
* Calculates normals for each face.
|
|
*
|
|
* @param[out] Array in which faceted normals will be stored.
|
|
*/
|
|
void calculate_face_normals(float3* normals, const mesh& mesh);
|
|
|
|
float3 calculate_face_normal(const mesh::face& face);
|
|
|
|
/**
|
|
* Calculates smooth tangents per-vertex.
|
|
*
|
|
* @param[out] tangents Array in which vertex tangents will be stored. A bitangent sign is stored in each tangent vector's fourth component.
|
|
* @param[in] texcoords Array containing vertex texture coordinates.
|
|
* @param[in] normals Array containing vertex normals.
|
|
*/
|
|
void calculate_vertex_tangents(float4* tangents, const float2* texcoords, const float3* normals, const mesh& mesh);
|
|
|
|
/**
|
|
* Calculates the AABB bounds of a mesh.
|
|
*/
|
|
aabb<float> calculate_bounds(const mesh& mesh);
|
|
|
|
} // namespace geom
|
|
|
|
#endif // ANTKEEPER_GEOM_MESH_FUNCTIONS_HPP
|
|
|