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Fixing slow conversion from cgal mesh format

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This commit is contained in:
tamasmeszaros 2021-11-02 09:52:44 +01:00
parent fc3bab9063
commit 73af0ed331
1 changed files with 8 additions and 4 deletions
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12
src/libslic3r/MeshBoolean.cpp
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@ -148,19 +148,23 @@ template<class _Mesh> TriangleMesh cgal_to_triangle_mesh(const _Mesh &cgalmesh)
its.vertices.reserve(cgalmesh.num_vertices());
its.indices.reserve(cgalmesh.num_faces());
for (auto &vi : cgalmesh.vertices()) {
const auto &faces = cgalmesh.faces();
const auto &vertices = cgalmesh.vertices();
int vsize = int(vertices.size());
for (auto &vi : vertices) {
auto &v = cgalmesh.point(vi); // Don't ask...
its.vertices.emplace_back(to_vec3f(v));
}
for (auto &face : cgalmesh.faces()) {
for (auto &face : faces) {
auto vtc = cgalmesh.vertices_around_face(cgalmesh.halfedge(face));
int i = 0;
Vec3i facet;
for (auto v : vtc) {
int iv = v;
if (i > 2 || iv < 0 || iv >= int(cgalmesh.vertices().size())) { i = 0; break; }
if (i > 2 || iv < 0 || iv >= vsize) { i = 0; break; }
facet(i++) = iv;
}