forked from bartvdbraak/blender
83617d24d5
Goal of this commit is to support NGons for boolean modifier (currently mesh is being tessellated before performing boolean operation) and also solve the limitation of loosing edge custom data layers after boolean operation is performed. Main idea is to make it so boolean modifier uses Carve library directly via it's C-API, avoiding BSP intermediate level which was doubling amount of memory needed for the operation and which also used quite reasonable amount of overhead time. Perhaps memory usage and CPU usage are the same after all the features are implemented but we've got support now: - ORIGINDEX for all the geometry - Interpolation of edge custom data (seams, crease) - NGons support Triangulation rule is changed now as well, so now non-flat polygons are not being merged back after Carve work. This is so because it's not so trivial to support for NGons and having different behavior for quads and NGons is even more creepy. Reviewers: lukastoenne, campbellbarton Differential Revision: https://developer.blender.org/D274
123 lines
4.1 KiB
C++
123 lines
4.1 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2014 Blender Foundation.
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* All rights reserved.
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*
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* Contributor(s): Blender Foundation,
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* Sergey Sharybin
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef __CARVE_UTIL_H__
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#define __CARVE_UTIL_H__
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#include <carve/csg.hpp>
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#include <carve/geom3d.hpp>
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#include <carve/interpolator.hpp>
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#include <carve/mesh.hpp>
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#include "carve-capi.h"
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void carve_getRescaleMinMax(const carve::mesh::MeshSet<3> *left,
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const carve::mesh::MeshSet<3> *right,
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carve::geom3d::Vector *min,
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carve::geom3d::Vector *max);
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void carve_unionIntersections(carve::csg::CSG *csg,
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carve::mesh::MeshSet<3> **left_r,
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carve::mesh::MeshSet<3> **right_r);
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bool carve_checkPolyPlanarAndGetNormal(const std::vector<carve::geom3d::Vector> &vertices,
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const int verts_per_poly,
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const int *verts_of_poly,
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carve::math::Matrix3 *axis_matrix_r);
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int carve_triangulatePoly(struct ImportMeshData *import_data,
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CarveMeshImporter *mesh_importer,
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int poly_index,
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int start_loop_index,
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const std::vector<carve::geom3d::Vector> &vertices,
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const int verts_per_poly,
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const int *verts_of_poly,
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const carve::math::Matrix3 &axis_matrix,
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std::vector<int> *face_indices,
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std::vector<int> *orig_loop_index_map,
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std::vector<int> *orig_poly_index_map);
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namespace carve {
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namespace interpolate {
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template<typename attr_t>
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class VertexAttr : public Interpolator {
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public:
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typedef const meshset_t::vertex_t *key_t;
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protected:
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typedef std::unordered_map<key_t, attr_t> attrmap_t;
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attrmap_t attrs;
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virtual void resultFace(const carve::csg::CSG &csg,
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const meshset_t::face_t *new_face,
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const meshset_t::face_t *orig_face,
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bool flipped)
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{
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typedef meshset_t::face_t::const_edge_iter_t const_edge_iter_t;
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for (const_edge_iter_t new_edge_iter = new_face->begin();
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new_edge_iter != new_face->end();
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++new_edge_iter)
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{
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typename attrmap_t::const_iterator found =
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attrs.find(new_edge_iter->vert);
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if (found == attrs.end()) {
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for (const_edge_iter_t orig_edge_iter = orig_face->begin();
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orig_edge_iter != orig_face->end();
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++orig_edge_iter)
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{
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if ((orig_edge_iter->vert->v - new_edge_iter->vert->v).length2() < 1e-5) {
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attrs[new_edge_iter->vert] = attrs[orig_edge_iter->vert];
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}
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}
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}
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}
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}
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public:
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bool hasAttribute(const meshset_t::vertex_t *v) {
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return attrs.find(v) != attrs.end();
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}
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const attr_t &getAttribute(const meshset_t::vertex_t *v, const attr_t &def = attr_t()) {
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typename attrmap_t::const_iterator found = attrs.find(v);
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if (found != attrs.end()) {
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return found->second;
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}
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return def;
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}
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void setAttribute(const meshset_t::vertex_t *v, const attr_t &attr) {
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attrs[v] = attr;
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}
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};
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} // namespace interpolate
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} // namespace carve
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#endif // __CARVE_UTIL_H__
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