74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_EMBREE_REORIENT_FACETS_RAYCAST_H
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#define IGL_EMBREE_REORIENT_FACETS_RAYCAST_H
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#include "../igl_inline.h"
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#include <Eigen/Core>
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namespace igl
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{
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namespace embree
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{
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// Orient each component (identified by C) of a mesh (V,F) using ambient
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// occlusion such that the front side is less occluded than back side, as
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// described in "A Simple Method for Correcting Facet Orientations in
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// Polygon Meshes Based on Ray Casting" [Takayama et al. 2014].
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//
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// Inputs:
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// V #V by 3 list of vertex positions
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// F #F by 3 list of triangle indices
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// rays_total Total number of rays that will be shot
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// rays_minimum Minimum number of rays that each patch should receive
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// facet_wise Decision made for each face independently, no use of patches
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// (i.e., each face is treated as a patch)
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// use_parity Use parity mode
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// is_verbose Verbose output to cout
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// Outputs:
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// I #F list of whether face has been flipped
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// C #F list of patch ID (output of bfs_orient > manifold patches)
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template <
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typename DerivedV,
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typename DerivedF,
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typename DerivedI,
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typename DerivedC>
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IGL_INLINE void reorient_facets_raycast(
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const Eigen::PlainObjectBase<DerivedV> & V,
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const Eigen::PlainObjectBase<DerivedF> & F,
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int rays_total,
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int rays_minimum,
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bool facet_wise,
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bool use_parity,
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bool is_verbose,
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Eigen::PlainObjectBase<DerivedI> & I,
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Eigen::PlainObjectBase<DerivedC> & C);
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// Outputs:
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// FF #F by 3 list of reoriented faces
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// Defaults:
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// rays_total = F.rows()*100;
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// rays_minimum = 10;
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// facet_wise = false;
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// use_parity = false;
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// is_verbose = false;
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template <
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typename DerivedV,
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typename DerivedF,
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typename DerivedFF,
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typename DerivedI>
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IGL_INLINE void reorient_facets_raycast(
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const Eigen::PlainObjectBase<DerivedV> & V,
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const Eigen::PlainObjectBase<DerivedF> & F,
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Eigen::PlainObjectBase<DerivedFF> & FF,
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Eigen::PlainObjectBase<DerivedI> & I);
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}
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};
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#ifndef IGL_STATIC_LIBRARY
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# include "reorient_facets_raycast.cpp"
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#endif
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#endif
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